| Voluntary disclosure | FTA audit or query | |
|---|---|---|
| Who initiates | You | The Federal Tax Authority |
| Timing | When you choose, once quantified | When they choose |
| Scope | You define it: the error and its periods | They define it, and it can widen |
| Preparation | Full: quantified, evidenced, explained | Reactive, against their deadlines |
| Mechanism | Form 211 for VAT; the equivalent route for corporate tax | Information request, then possibly field audit |
| Position | Correcting a mistake you found | Explaining a mistake they found |
| Control | You choose the sequence and presentation | You respond to their sequence |
| Cost | Quantification, disclosure, the tax itself | Response effort, potential wider review, the tax |
| What helps most | Disclosing promptly and completely after discovery | Documentation assembled at the time, not reconstructed |
The same facts, two different positions
Consider a business that has been treating exempt supplies as zero-rated and over-recovering input tax for three years. The underlying facts do not change regardless of what happens next.
In the first version, the business finds it, through a health check, a change of adviser, or somebody new looking at the coding. It quantifies the error period by period, checks whether related errors exist, discloses on Form 211 with a clear explanation of the cause, settles, and changes the process that produced it.
In the second, the FTA raises a query about input tax recovery. The business responds under a deadline, discovers the error while preparing the response, and now has to explain both the error and why it is only being addressed now.
Same error, same amount, two quite different conversations. Which is why the practically important moment is not when the error was made. It is the gap between discovering it and doing something about it.
What triggers an FTA query
Queries are not random. The patterns that attract attention are consistent, and most are avoidable:
- A sudden move into a refund position without an obvious cause such as capital spend or an export contract
- Input tax recovery high relative to output tax, sustained across periods
- Zero-rated supplies without export evidence to support them
- No reverse charge entries at all in a business with obvious overseas costs
- Returns that swing sharply between periods without a corresponding change in the business
- Repeated voluntary disclosures, which suggest a process problem rather than an isolated error
- Sector or peer comparison where a business looks materially different from similar ones
None of these mean anything is wrong. They mean somebody will look, and whether that is a short exchange or a long one depends almost entirely on whether the supporting documentation was assembled at the time or has to be built now.
When disclosure is not the right answer
Not every error requires Form 211, and disclosing reflexively is its own mistake.
Where an error is immaterial and does not recur, prospective correction may be adequate. Where a position is genuinely arguable rather than wrong, a classification on which reasonable practitioners could differ, disclosure concedes something that may not need conceding. And where the quantification is not yet complete, disclosing a partial figure invites exactly the wider review a disclosure is meant to avoid.
What is never right is knowing and doing nothing. That converts an error into a decision, and decisions are judged differently from mistakes. If you have identified something material and chosen to leave it, that choice is itself the fact that will be examined.
So the sequence is: quantify first, assess the route second, act third, and do all three quickly, because the elapsed time between discovery and action is the most visible fact in the file.
If an audit has already started
The calculus changes once a query is open, and it changes in ways that require care rather than instinct.
Disclosing an unrelated error while an audit is running is a decision to make deliberately, not reflexively. It may be the right thing, and it may broaden the examination. Where an error relates to the matter under review, the sequencing of disclosure and response interact directly and should be decided before anything is submitted on either track.
What helps in either case is the same: answer what was asked and no more, be consistent with what has already been filed, meet the deadline or request an extension before it, and index the evidence so it can be followed. The most damaging single error is answering quickly to appear cooperative before establishing whether the filed position was actually correct.
This is the point at which representation earns its cost, not because anyone has influence, but because somebody who has seen the process before will make the awkward assessment early, while it is still worth something.
What goes wrong
These are the failures we are brought in to correct, in rough order of frequency:
- Waiting to see whether it is noticed. The gap between discovery and action is the most visible fact in the file.
- Correcting quietly in the next return rather than using the prescribed route.
- Disclosing one period when the error spans eight, which invites the wider review.
- Disclosing before quantifying, leaving a partial figure to be revised.
- Disclosing reflexively where the error is immaterial and prospective correction would do.
- Responding to a query before establishing whether the filed position was right.
- Answering more than was asked, expanding the scope of the enquiry.
- Fixing the return without fixing the process, guaranteeing a repeat.
Timing and deadlines
For disclosure: as soon as the error is quantified, which should take days rather than months. Elapsed time does not improve the position.
For an audit or query: immediately on receipt, because response deadlines are firm and the first response frames everything that follows. Where the two interact, an error found while preparing a response, the sequencing should be decided before anything is submitted on either track.
What you get
- The error quantified period by period, with workings
- A recommendation on route, including where disclosure is not required
- The disclosure prepared with a supporting explanation, or the query response prepared
- Correspondence handled through to closure as your registered tax agent
- A process recommendation so the same error does not recur
What we need from you
What we ask for up front:
- The returns for all potentially affected periods
- Ledgers and records supporting them
- The transactions in which the error originated
- Any correspondence already received from the FTA
- An account of how and when the error was discovered
- Details of any process change already made
Related
Frequently Asked Questions
Is it better to disclose or wait?
Disclose, once quantified. The facts do not change either way, what changes is whether you identified the error or the authority did, and how long you sat on it after finding out. That gap is the most visible fact in the file.
Will disclosing trigger an audit?
It is not a trigger in itself. What does attract wider attention is partial disclosure, correcting one period when the error spans eight, or disclosing one issue while leaving adjacent ones unaddressed. Completeness is the better strategy.
Should we always disclose an error?
No. Where it is immaterial and does not recur, prospective correction may be adequate; where a position is genuinely arguable rather than wrong, disclosure concedes something that may not need conceding. What is never right is knowing and doing nothing, that converts an error into a decision.
What triggers an FTA query?
A sudden refund position without an obvious cause, sustained high input tax relative to output tax, zero-rated supplies without export evidence, no reverse charge entries in a business with obvious overseas costs, sharp swings between periods, and repeated voluntary disclosures.
We found an error while responding to a query. What now?
Take advice before submitting anything on either track. Where the error relates to the matter under review, the sequencing of disclosure and response interact directly. Where it is unrelated, disclosing during an open audit is a deliberate decision rather than a reflexive one.
How quickly should we act after finding an error?
Quantify within days, then decide the route and act. Months of elapsed time between discovery and disclosure is difficult to explain and does not improve with age.
Can you handle both the disclosure and the correspondence?
Yes, as an FTA-registered tax agent we can prepare the disclosure, submit it, and handle the correspondence through to closure. We will also tell you honestly where a position is weak, before rather than after, because that determines whether the right route is to defend, disclose or settle.
Quantify it before deciding anything. The route depends on size, periods affected and whether it recurs, and the clock that matters starts at discovery, not at the error.
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Last reviewed 27 July 2026. Rates, thresholds and deadlines change, the e-invoicing provider deadline has already moved once. Confirm current requirements with the Federal Tax Authority before acting, or ask us to check your position.