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GUEPARDO Tax · Release update

Updating the GUEPARDO Tax release: when to decide and what to prove

Changing the product version is a decision about the tax calendar and about risk, not only an infrastructure task. Here are the questions that set the window, the evidence to keep beforehand and the comparison that proves the result afterward.

NTT DATA owns the product. DFSpro, as an Authorized Channel, sells the license, implements and does the governance. Your company decides what to install, and when.

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Index

Enter through the question your role needs to answer

Four entries for the same decision: each role sees a different part of the decision to update the release.

01Tax and accounting

The calendar of obligations, the window that is possible and what the company accepts as a difference.

See the part for this role

02Accounting and audit

The evidence from closed periods and the comparison the audit will ask for.

See the part for this role

03IT and infrastructure

The sequence of environments, the rollback plan and what changes in the production environment.

See the part for this role

04GUEPARDO Tax governance

Who decides, who validates and how the decision and the accepted open item are recorded.

See the part for this role
Decision shortcuts
The short answer

A decision about the calendar and about proof

The direct answer

Updating the release means choosing a window outside the close and proving the result by comparing periods that are already closed, before and after, with every difference explained.

When

After the month's obligations have been generated and delivered, and with room before the next deadline. The window comes from the tax calendar, not from the infrastructure schedule.

What to prove

The same scenarios from closed periods, before and after. What changed needs an explanation, and what has no explanation is investigated.

Who decides

Your company: the date, the risk of waiting, the risk of changing and any accepted open item. DFSpro designs the window and the proof and delivers the comparison.

The comparison runs on the method of tax testing in SAP, after the decision is made.

The criteria

Six questions that decide whether and when to change

The decision to update a release fits in six questions, in the order they need to be answered.

  1. 01

    What is the calendar?

    Which obligations are due in the coming weeks and which window is left between one delivery and the next.

  2. 02

    What is the risk of waiting?

    What the company carries by not changing now: a requirement with a date, debt that grows and dependence on a few people.

  3. 03

    What is the risk of changing?

    What can break in the production environment and what the company cannot undo by itself.

  4. 04

    What evidence exists beforehand?

    Closed periods, delivered filings and checked balances, kept with a date and an owner.

  5. 05

    How to compare afterward?

    The same scenarios run again, with the expected difference written down before looking at the result.

  6. 06

    Who decides and who validates?

    The person who takes the risk and the person who signs that the result is acceptable, named before the window.

The six questions apply to any change in the tax environment: product version, SAP package, custom extension or integration. The tax decision stays with the company.

Why it is not only infrastructure

Six reasons for tax to sit at the same table as IT

Treating the update as an infrastructure task leaves out the calendar and the evidence. These are the points that weigh most.

Tax depends on the result

The change alters the environment that produces the calculation and the filings. Whoever answers for the tax result needs to be in the decision from the start.

The calendar does not wait

Obligations have official dates. A badly chosen window collides with a delivery, and the company finds the problem with the deadline running.

The proof is tax proof

A server that is up and open transactions show that the environment works. Only comparing results shows that the value is right.

The risk belongs to the company

If something differs, the company answers to the tax authority. So the risk and the accepted open item are its decisions, on record.

The audit asks afterward

Months later someone wants to know why the result changed. Without a record of the decision and the comparison, the answer becomes the memory of whoever was in the room.

The change has an owner on both sides

IT runs the window and tax validates the result. Without both named, each side assumes the other checked.

The calendar of obligations

Before choosing the date, the dates the change must not touch

Each obligation has an official deadline. The window only exists in the gaps between them.

ObligationOfficial deadlineSource
ECDDelivery is due on the last business day of June of the following year, under the wording of IN RFB 2.142/2023. An authenticated ECD is replaced only in the cases listed in art. 8.IN RFB 2.003/2021, arts. 5 and 8
ECFAnnual delivery, due on the last business day of July of the following year. To correct, you deliver a new ECF, and a replacement ECD that changes accounts or recovered balances requires a corrected ECF (arts. 7 and 8).IN RFB 2.004/2021, arts. 3, 7 and 8
EFD-ContribuiçõesRegular delivery by the 10th business day of the second month after the calculation period, in a monthly file centralized at the head office.EFD-Contribuições guide, v. 1.35
EFD ICMS IPIEach state sets the delivery deadline. Correcting without asking for authorization is possible until the end of the third month after the calculated month, and a correction that affects the IPI calculation of a period still inside the five-year limitation period requires a formal request to the Receita.EFD ICMS/IPI guide, v. 3.2.2
DCTFWebMonthly declaration, due at 23:59:59 on the last business day of the month after the taxable events.DCTFWeb manual, January 2025 update
Note

The list does not cover every obligation in your scenario. Reinf, state and city obligations and the declarations of each sector go into the same count, and the window calendar is that of your establishment.

The window

Six criteria for a window that tax accepts

The window criterion is a tax one: the environment only changes when nothing it produces is in progress.

  1. 01

    After the month's delivery

    The month's filings and declarations have been generated, transmitted and accepted. Nothing the change touches is in progress.

  2. 02

    Outside the close

    The accounting and tax close of the month is over. The team that validates the result is available, not consumed by routine.

  3. 03

    Away from an annual deadline

    No annual filing is being prepared or corrected. A difference found there may force a correction of what was already delivered.

  4. 04

    With room to go back

    There is time left to repeat the proof, fix and, if needed, return to the earlier state before the next deadline.

  5. 05

    No rule change in the same week

    If a new rule takes effect in the period, you need to separate what changed because of the rule from what changed because of the update.

  6. 06

    With the team named

    Whoever runs, whoever validates and whoever decides are present and informed, including on a local holiday and in vacation periods.

A window that meets all six criteria is usually rare. When no perfect one exists, the decision is to choose the least risky one and record which criteria were left out.

Each type of change weighs differently

The criteria are the same, the emphasis changes

Product version, SAP package, extension, integration, setup and master data follow the same six questions, with different weights.

Type of changeWhat weighs in the decisionWhat to prove afterward
Tax product versionThe calendar of obligations, the distance to the current version and the window that is left.Results from closed periods equal to the ones from before, or with the expected difference explained.
SAP package or versionThe sequence with the other platform changes and what the tax environment depends on from it.The scenarios that pass through the integration points between SAP and tax.
Custom extensionWho maintains it, what it changes and whether anyone can still explain it.That the extension produces the same result and that no new deviation was created.
External integrationWhat depends on it at the close and what happens if it fails in the window.That what comes in and what goes out still matches, document by document.
SetupThe reason for each rule and the owner who approved it.That the new rule applies in the right period and the old one still applies to closed periods.
Master dataThe quality of the records before the change and who fixes what the comparison finds.That the corrected record produces the expected result and does not change periods already delivered.
Rule change and version change

When the rule and the version change in the same period

An update rarely happens in a period with no rule change at all. Separating the causes is what keeps the proof clean.

Separate what changed because of the rule

When a new rule takes effect, part of the difference in results comes from it, not from the update. Record the difference expected because of the rule.

Compare with the rule of the period

Closed periods follow the rule that applied in them. The comparison must use the same rule on both sides, or explain the switch.

Avoid two changes in the same window

Whenever possible, one window per change. If that is not possible, the proof needs one more column: what changed because of which cause.

Leave the interpretation to the company

If the new rule allows more than one reading, the choice is the client's. The system records the chosen reading, and the comparison shows the effect.

Wait or change

Both sides carry risk, and both need an owner

An honest comparison lists the risk of waiting and the risk of changing, on the same sheet, with the name of who accepts each one.

Risks of waiting

  • A requirement with a date asks for an adjustment the current environment cannot support, and the window gets shorter.
  • The distance between the installed version and the current one grows, and the future change becomes bigger than it would be today.
  • The environment depends on the knowledge of a few people, and team turnover raises the risk over time.
  • Custom extensions stay unreviewed, and each new rule adds to code that nobody has inventoried.

Risks of changing

  • A result changes with nobody having written down the expected difference, and the divergence shows up only at the close.
  • A custom extension depends on a behavior that stops existing, and breaks without warning.
  • The window collides with a delivery, and the proof has to be done with the deadline running.
  • There is no rollback plan, and the only way out is to fix forward with the production environment already changed.
How to weigh

Waiting is also a decision, with risk and with an owner. The useful question is not which side has risk, but which risk the company accepts to take on this date, with the evidence it has.

When waiting is the right decision

Six situations in which postponing the change is the safest

Waiting with a criterion is as valid a decision as changing. These situations usually justify it.

When there is no base to prove

  • The calendar is tight, with heavy deliveries and no safe window: changing now swaps a known risk for another that nobody measured.
  • The evidence from before does not exist: without reference periods kept, the comparison proves nothing.
  • The inventory is incomplete: if nobody knows which extensions and integrations exist, the proof has holes.

When there is nobody to decide and validate

  • The validation team is absent: acceptance with no owner is the worst possible result of a window.
  • There is a rule change in the same period: two changes together make it impossible to know which one caused each difference.
  • There is no rollback plan: changing without knowing how to go back means accepting a risk with no limit.
Decision triggers

Eight situations that put the update on the agenda

Each situation changes the weight of the risk of waiting. None forces a change on the spot: each forces a conscious decision.

SituationWhat changes in the decision
A requirement with a dateThere is a rule with a deadline that asks for an adjustment in the environment. The decision gets a cut-off date, and the window calendar shrinks.
A platform changeA migration, a new SAP package or an infrastructure switch is scheduled. The update needs to go into the same sequence.
A recurring problemThe same symptom returns at every close and the cause is in the environment. The decision stops being optional and becomes a correction.
An audit aheadAn audit job is coming and the environment has open items. Changing before or after it is a choice tax has to make.
An incident in productionAn error in the current environment calls for a fix that depends on a change. The decision leaves the plan and becomes an incident response, with the same care in proof.
A business needA new operation, branch or document type asks for something the current environment does not offer. The change stops being technical and becomes a business one.
A third-party requirementA commercial agreement imposes a tax or traceability requirement. The deadline comes from the agreement, and the company weighs the risk.
A team changeWhoever knows the environment is leaving. Recording and proving the current state before any change becomes more urgent.
The inventory

What exists in the environment before changing

The comparison only works if the starting state is described. These eight items make up the snapshot.

Installed version

The product and SAP version in production, with the date of the last change and who is responsible for it.

Setup

The configured rules, with owner, reason and date. The undocumented part is the one that surprises most in a comparison.

Custom extensions

The programs and adjustments made in the tax environment, with what each one changes. The full inventory is in custom Z extensions in tax.

Integrations

What comes in and what goes out: electronic documents, banks, obligations, external systems. Each contact point is a test point.

Master data

Records of material, partner and tax classification. Bad data shows up after the change as if it were a defect of the change.

Profiles and access

Who can change, approve and transport. The change is a good moment to check that access matches the role.

Periodic routines

Jobs, loads and reconciliations that run on their own. A forgotten routine that fails in silence is a classic cause of difference.

Existing documentation

What is written about the environment and what lives only in the team's head. What is not written needs to be surveyed first.

The evidence from before

What to keep before changing, and where to keep it

The evidence from before is what gives the comparison its meaning. Without it, the "after" has nothing to be compared with.

  • Results from closed and delivered periods: calculation by tax, balances and values by document.
  • Filings transmitted and accepted, with receipt and date, for each obligation in the window calendar.
  • Tax and accounting reconciliations for at least one full period, with the differences already explained.
  • The chosen scenarios, with the expected value of each one and the source of that value.
  • The description of the environment state: version, setup, extensions and integrations.
  • The record of the decision: date, who decided, which risks were weighed and which open item was accepted.
Where to keep it

Keep everything in a place with a date and an owner, outside the environment that is going to change. The earlier evidence loses its value if it exists only inside the system that was changed.

How much to keep depends on the risk accepted. One period, three periods or a full year are choices for tax, together with the audit, and DFSpro helps to size it.

The comparison

Six steps to prove the result after the change

The proof is the comparison. The steps below apply to a product version, an SAP package or any change in the environment.

  1. 01

    Choose the scenarios

    Closed periods that cover the real cases: ordinary operations, exceptions, returns, adjustments and the cases that already caused trouble.

  2. 02

    Write the expected difference

    Before running, record what should be equal and what may change, with the reason. An expectation written afterward is rationalization.

  3. 03

    Run before and after

    The same scenarios in the current environment and in the updated environment, with the same data set and the same reference dates.

  4. 04

    Compare line by line

    Value by value, document by document, tax by tax. Checking by total hides differences that offset each other.

  5. 05

    Classify each difference

    Expected and explained, expected and not explained, not expected. Only the first class closes with no further questions.

  6. 06

    Sign the acceptance

    Tax records what it accepts and what remains open. IT only treats the change as complete after this signature.

The design of the scenarios and the exit criteria follows the method of tax testing in SAP.

When the numbers diverge

A difference with no explanation is a point to investigate

Every difference has an origin. Looking in the right order avoids blaming the change for a problem that already existed.

Source data

The data came in different: a changed record, a document posted in another way or a different test data set. The cause is before the calculation.

Process

The routine changed: order of execution, who posts, when it closes. The system did what it was asked, and the request was a different one.

Configuration

A rule was changed, or stopped applying, or started applying at another moment. Comparing the setups usually finds the cause.

Every difference with no explanation is a point to investigate from these three origins, in that order.

  • Do not accept a difference because it is small. A small value repeated across many documents becomes a large value in the month.
  • Do not explain a difference by assumption. The explanation must be reproduced, not just plausible.
  • Do not close an item with no owner. A difference with nobody responsible becomes a forgotten open item.
  • Record each difference and its class, so the next change starts from a history.
Closed-period scenarios

Eight types of period the comparison needs to cover

Using periods that are already closed gives a reference value that nobody needs to recalculate on the spot.

  • A period of ordinary operation, with the company's most frequent documents.
  • A period with a return, a cancellation and a document supplement.
  • A period with an interstate operation and with an export or import operation, if they exist.
  • A period with a service and with withholding at source, if they exist.
  • A period with a manual calculation adjustment and with a value that does not come from a document.
  • A period with a change in tax rule in the middle of the month.
  • A period of annual close, with the tax and accounting reconciliation.
  • A case that already caused trouble, with the fix already applied.
How many

Eight is a reference, not a minimum. The right number is the one that covers the cases that cause differences in your environment, and the team that closes the month knows what they are.

The sequence of environments

Five steps between the test environment and production

The order of the steps matters more than the name of each one, and each step answers a different question.

  1. 01

    Development environment

    Where the change is prepared and the custom extensions are adjusted. Nothing here proves a tax result at real volume.

  2. 02

    Quality environment

    Where the proof runs, with data similar to production. The difference between this environment and production needs to be written down.

  3. 03

    Rehearsal with a copy of production

    When it exists, it is the best place for the comparison. Data about real people and documents requires care with access and disposal.

  4. 04

    Window in production

    The change is applied on the approved date, with the team present and the rollback plan reviewed the day before.

  5. 05

    Check right afterward

    The minimum scenarios run again in production before use is released. The result goes into the record, with date and time.

The role of each environment also appears in tax rollout in SAP and in migration to S/4HANA.

The rollback plan

How to go back, when to go back and who decides

The decision to change is only complete when the decision to go back is also written down.

Element of the planWhat to write before the window
What triggers the rollbackA criterion written beforehand: type of difference, value or number of documents affected. Without the criterion, the decision to go back becomes an argument under pressure.
Until when going back is validA limit: the window in which rollback is still possible without losing data posted after the change. Past the limit, you can only fix forward.
Who decides to go backOne person with authority, not a group. At the last minute, a group decision takes time and the deadline keeps running.
What to do with what was postedDocuments created after the change and before the rollback need a defined treatment, agreed with tax, before the window.
Who decides and who validates

Four roles, named before the window

Decision and validation on the company side have a name and a function. DFSpro supports, and does not take either role.

Tax and accounting

Decides the window and the accepted risk, validates the result and signs the acceptance. The tax position behind each difference is theirs.

Accounting

Checks that the tax and accounting reconciliation still closes and that the opening balances are intact.

IT and infrastructure

Runs the change, keeps the rollback plan and ensures the sequence of environments. Does not decide whether the result is acceptable.

Environment governance

Keeps the inventory, the record of the decision and the history of differences. It is the memory that survives a change of team.

A role named before the window avoids the deadlock in which each area thinks the other checked.

Questions by area

Four questions each area needs to answer

The decision gets faster when each area comes to the table with its answers. These are the ones that most often block the window.

Tax and accounting

  • Which obligations are due between the planned date and the next one?
  • Which difference does tax accept and which requires a fix before use?
  • Who signs the acceptance?
  • Which tax decision is open and may appear in the comparison?

Accounting and audit

  • Are the opening balances checked and kept?
  • Does the tax and accounting reconciliation close today, for a full period?
  • What evidence will the audit ask for months later?
  • Where are the record of the decision and the record of the open item kept?

IT and infrastructure

  • What is the sequence of environments and how much does each one look like production?
  • What are the criterion and the limit for the rollback?
  • Who is on call in the window and who decides to go back?
  • Which periodic routines need to be paused and resumed?

Environment governance

  • Are the inventory of extensions, integrations and setup up to date?
  • Who answers for each configured rule?
  • What history of differences will the next change inherit?
  • Who looks after the evidence after the window closes?
The accepted open item

Six fields to record the decision to go ahead with an open item

Recording the accepted open item turns an omission into a decision, with an owner and a deadline.

  • What is open, described so that an outsider understands.
  • Why the company accepts to go ahead with the open item, and what a change of date would force it to do.
  • Who accepted, with name and date.
  • Until when the open item is valid and what happens if the deadline passes.
  • Who follows it and how the next close will show whether it was resolved.
  • The expected impact on the obligations of the period, with what the tax authority could see.
How to think

Going ahead with an open item is a legitimate decision, as long as it is conscious and recorded. The problem is not accepting, it is accepting without anyone knowing they accepted.

The record of the decision

Nine fields that turn a window into a documented decision

A short record, made before the window and completed afterward, answers most of what the audit asks.

Record fieldWhat to write
ChangeWhat will be changed, in business words, and the reason to change now.
Calendar consideredThe obligations of the period and the gap chosen for the window.
Risk of waitingWhat the company carries if it does not change, with the name of who accepts it.
Risk of changingWhat can go wrong and what was done to reduce it.
Evidence from beforeWhere it is kept and who owns it.
Expected differenceWhat should change and what should stay equal, written before running.
Rollback planCriterion, limit and the person responsible for the decision to go back.
Who decided and who validatedNames, roles and date.
Accepted open itemWhat stayed open, until when and who follows it.
The first close

What the first close after the change should show

Tests show that the environment behaves as expected. The real close shows that the tax result is right.

  • Obligations come out with no rework, pass the validator and match the calculation. A new manual fix needs an explanation.
  • The tax and accounting reconciliation still closes. A balance that fails to close for the first time is a clue that something changed.
  • The opening balances are still equal to those in the evidence from before.
  • The team does not need extra work. If the close got heavier, the environment changed behavior or someone is offsetting a problem.

The first close after the change is the strongest proof. The method is in tax testing in SAP.

What the audit asks

Six questions that arrive months after the change

Whoever audits does not see the window. They see the record. If the record answers the six questions, the change stands on its own.

  1. 01

    Why did the result change?

    The answer is the expected difference, written beforehand, and the comparison that shows the real difference.

  2. 02

    Who decided to change on this date?

    The answer is the record of the decision: who, when, with which risk weighed and with which calendar in hand.

  3. 03

    What was proved before release?

    The answer is the evidence package from before and after, with the scenarios and the results.

  4. 04

    What stayed open and who accepted it?

    The answer is the record of the accepted open item, with name, date, deadline and follow-up.

  5. 05

    Were the period's deliveries affected?

    The answer is the check of the period's obligations, with receipt and comparison with what was expected.

  6. 06

    Will this repeat in the next change?

    The answer is the history of differences and the updated inventory, which the next window inherits.

Common mistakes

Six mistakes that leave the problem for the close

These mistakes appear in any change to a tax environment and are costly because they are found late.

Preparation mistakes

  • Choosing the window by the IT schedule: the tax calendar finds the collision too late.
  • Writing the expectation afterward: with the result in hand, any difference seems explainable.
  • Changing with no rollback plan: the only way out becomes fixing forward, with the deadline running.

Proof mistakes

  • Comparing only totals: the differences offset each other and the total matches.
  • Proving only in the test environment: different data and volume give a different result.
  • Leaving the decision without an owner: the change happens because nobody blocked it.
Readiness questions

Ten questions to ask before deciding

A no on any line does not stop the change. It shows what to resolve first, or the risk to take on consciously.

Question for your teamIf the answer is no
Is the calendar of obligations for the next weeks on the decision table?The window may collide with a delivery. Survey the calendar before fixing the date.
Are there closed periods chosen as reference?Without a reference, the comparison has no starting value. Choose and keep the periods.
Is the expected difference written before the change?The result will be explained afterward, which weakens the proof.
Is the inventory of extensions and integrations up to date?There is a risk that an extension breaks with nobody knowing it existed.
Were tax and IT named to decide and validate?The change can happen with nobody signing the acceptance.
Does the rollback plan have a criterion, a limit and an owner?The decision to go back will be made under pressure, with no rule.
Is the evidence from before kept outside the environment that will change?The evidence may be lost in the very change it was meant to prove.
Does the quality environment look like production?The proof in test may not hold in production. Record the known differences.
Will the validation team be available in the window?The result will go unchecked for lack of people, not for lack of method.
Is there a place where the decision and the accepted open item are recorded?The memory of the decision will depend on who was present.
How DFSpro works

From the calendar map to the first close proved

Six deliverables, in order. The comparison is the center, and the others support it.

  1. 01

    Calendar map

    A survey of the establishment's obligations and the gaps where the window can exist.

  2. 02

    Environment inventory

    Description of the current state: version, setup, extensions, integrations and master data.

  3. 03

    Design of the proof

    Choice of periods, writing of the expected difference and definition of the acceptance criterion with tax.

  4. 04

    Rehearsal and comparison

    Running the scenarios before and after, with each difference classified.

  5. 05

    Window and check

    Follow-up of the change, rollback plan reviewed and a check right afterward.

  6. 06

    First close

    Follow-up of the next close until the difference falls to the level the company accepts.

The work can start with an SAP tax diagnostic or enter the continuous governance routine of AMS Fiscal.

NTT DATA owns GUEPARDO Tax. As an Authorized Channel, DFSpro also sells the license and implements the product, and does the GUEPARDO Tax governance. What the product is can be found in what GUEPARDO Tax is.

What DFSpro delivers

Eight deliverables, each with a recipient

Each deliverable has a use and a recipient. None depends on a tax decision by DFSpro.

DeliverableWhat it is forWho receives it
Calendar and window mapShows the obligations of the period and the gaps where the change can happen.Tax
Environment inventoryDescribes the starting state, with an owner for each item.IT and governance
Scenario bookLists the chosen periods, the expected difference and the acceptance criterion.Tax and accounting
Evidence package from beforeGathers the reference results and filings, with date and owner.Audit and controllership
Comparison reportCompares before and after, with the class and cause of each difference.Tax and audit
Rollback planRecords the criterion, the limit and the person responsible for the decision to go back.IT and tax
Record of decision and open itemKeeps who decided, what weighed and what was accepted.Governance and audit
First close scriptOrganizes the follow-up of the first period after the change.Tax and IT
Limit of our role

Who proves and who decides

The proof shows what the system does. What to do with each result is the decision of whoever answers for the company.

Limit of our role

We help to decide the window, to keep the evidence and to compare the result. The decision to change, the accepted risk and the tax position belong to your company.

DFSpro proves

  • That the environment inventory describes the starting state.
  • That the agreed scenarios run before and after, with the same data set.
  • That each difference has a class, a cause and an owner.
  • That the evidence is kept with a date, for the audit.

The company decides

  • The date of the change and the risk it accepts in it.
  • What is an acceptable difference and when to return to the earlier state.
  • The accepted open item and the handling of any tax point.
  • The signature on the acceptance of the result.

The role of DFSpro in any tax work is in how we work with your team.

Frequently asked questions

Frequently asked questions about the GUEPARDO Tax release update

01Is updating the GUEPARDO Tax release a job for IT or for tax?+

For both areas. IT runs the window and keeps the rollback plan. Tax decides the date, takes the risk and validates the result. Without both named beforehand, each side assumes the other checked.

02What time of the month is safest to update?+

After the month's obligations have been generated and delivered, and outside the close. It is also wise to stay away from an annual deadline, such as ECD and ECF, because a difference found there may force a correction of what was already delivered.

03How do we know whether it is worth waiting for the next window?+

Compare the risk of waiting with the risk of changing, on the same sheet. If there is no requirement with a date and no recurring problem, waiting usually costs little. If the current window collides with a delivery, waiting tends to be the safest choice.

04What evidence should we keep before changing?+

Results from closed periods, accepted filings with receipt, the tax and accounting reconciliation, scenarios with the expected value and the record of the decision. Keep everything outside the environment that is going to change, with a date and an owner.

05How do we compare before and after with closed periods?+

Choose periods that cover the real cases, write the expected difference before running and compare document by document, not only the totals. Each difference gets a class, a cause and an owner, and tax signs the acceptance.

06What should we do with a difference nobody can explain?+

Treat it as a point to investigate, in this order: source data, process and configuration. Do not accept it because it is small or explain it by assumption. Without a reproduced explanation, the difference stays as an open item with an owner and a deadline.

07Who validates the result on the company side?+

Whoever answers for the tax result, usually the tax area, with support from accounting on the reconciliation. IT confirms that the environment works, but does not decide whether the result is acceptable.

08What should change in the plan when there is a legal requirement with a date?+

The cut-off date takes charge. The window shrinks, the proof concentrates on the scenarios the requirement touches and the rollback plan needs to be even clearer. The interpretation of the rule stays with the company.

09How do we record the decision to go ahead with an accepted open item?+

Describe the open item, the reason to go ahead, who accepted it and when, until when it applies and who follows it. Also record the expected impact on the obligations. That way the open item stops being an omission and becomes a decision.

10What should the first close after the change show?+

Obligations generated with no rework, the reconciliation closing, opening balances intact and a team with no extra work. It is the strongest proof, because it uses real data. The comparison method is in tax testing.

11What should we do when the update falls in the same period as a rule change?+

Separate the causes. Write the difference expected because of the rule and the one expected because of the update, and use the same rule on both sides of the comparison. If possible, prefer two windows, one for each change.

12What questions does the audit usually ask after the change?+

Why the result changed, who decided and with which calendar, what was proved before release, what stayed open and who accepted it. A short record of the decision, made before and completed afterward, answers most of them.

13Does DFSpro decide when to update our environment?+

No. DFSpro helps to design the window, to keep the evidence and to compare the result. The date, the accepted risk, the open item and any tax-position point are decisions of your company.

14Do I need to have implemented GUEPARDO Tax with DFSpro to hire this follow-up?+

No. DFSpro also serves those who already have the product, and the scope is defined in a conversation about your environment. NTT DATA owns the product, and DFSpro can also sell the license and implement it, as an Authorized Channel.

Next steps

Tell us which change is on the table and which obligations are due in the next weeks

The conversation covers the calendar, the state of the environment and who decides and validates, with no price and no commitment to a deadline.

To go deeper first: tax readiness checklist and custom Z extensions in tax.