If you've received an HMRC crypto nudge letter and aren't sure what to do next, we can help. From reviewing your crypto records to preparing disclosures and dealing with HMRC, we support clients throughout the process.
A crypto nudge letter is not normally a formal enquiry. However, it does indicate that HMRC believes your crypto tax position should be reviewed carefully.
In this article, we explain how Cryptoccountant can help you understand the letter, review your records, establish whether anything has been missed and prepare an appropriate response to HMRC.
Contents
- What Support Might You Need?
- Step 1: Understand Your Crypto History
- Step 2: Review and Reconstruct Your Crypto Records
- Step 3: Establish Whether Anything Has Been Missed
- Step 4: Decide How to Respond
- Step 5: Deal With Tax, Interest and Penalties
- Can We Deal With HMRC for You?
- Conclusion
What Support Might You Need?
Not everyone who receives a crypto nudge letter will need the same level of support.
Some investors may already have complete records and simply want reassurance that their previous tax returns are correct. Others may have used several exchanges over a number of years, have gaps in their transaction history or suspect that income or gains were not reported.
The work required will therefore depend on your circumstances. It may involve a focused review of an existing crypto tax report, a wider reconstruction of your transaction history, or a disclosure covering several tax years.
The first objective is to understand what HMRC is asking and establish whether there is a genuine issue to correct. A nudge letter should not be ignored, but neither should it be assumed that HMRC must be right.
For a broader explanation of what these letters mean, see our guide on crypto nudge letters.
Step 1: Understand Your Crypto History
The starting point is to understand your complete crypto history rather than focusing only on the particular tax year or transaction referred to by HMRC.
We will usually discuss:
- when you first acquired cryptoassets;
- which exchanges, wallets and platforms you have used;
- whether you have traded, staked, mined, lent or used DeFi;
- which tax returns have already been submitted; and
- whether you have previously reported crypto income or capital gains.
We will also review the wording of the letter itself. Different HMRC campaigns can contain different instructions, response dates and expectations, so the correct course of action depends partly on what the communication asks you to do.
This initial stage helps identify the relevant tax years, the records required and whether the issue appears likely to relate to capital gains, taxable income or both.
Step 2: Review and Reconstruct Your Crypto Records
Crypto tax calculations are only as reliable as the transaction records behind them.
Many investors already have reports produced by software such as Koinly. However, a completed report does not necessarily mean that every exchange, wallet or transaction has been captured or classified correctly.
Common issues include:
- missing exchange or wallet history;
- incomplete API imports;
- unmatched transfers between your own accounts;
- missing cost basis;
- staking or other income that has not been imported; and
- transactions that have been classified incorrectly.
Where records are incomplete, we may need to reconstruct parts of the history using exchange exports, wallet addresses, bank statements, emails, blockchain explorers and other available evidence.
This is particularly important where activity spans several years. Under the UK pooling rules, an earlier purchase or disposal can affect the calculation of gains much later. A reply to HMRC should therefore be based on the full relevant history, not simply the transactions visible in the most recent tax year.
Our aim is to establish the most complete and supportable record of your activity reasonably possible before relying on any tax calculation.
You can read more about the underlying process in our guide on rebuilding messy crypto records.
Step 3: Establish Whether Anything Has Been Missed
Once the records have been reviewed, we can assess whether your previous tax returns were complete and whether any tax has been underpaid.
This may involve recalculating capital gains and losses, checking whether crypto income was declared correctly and considering whether earlier tax years affect later calculations.
The outcome is not always that additional tax is due.
In some cases, the review may confirm that the original figures were correct. In others, it may identify omitted income or gains. We may also find that previous reports overstated the taxable position because transfers were treated as disposals, allowable costs were missing or the transaction history was incomplete.
The important point is that the response should be based on reliable records and a supported tax calculation, rather than an assumption that either HMRC or the original software report must be correct.
Step 4: Decide How to Respond
The appropriate response will depend on what the review identifies, the tax years involved and the instructions contained in HMRC’s letter.
The next step may be to:
- confirm that no correction is required;
- amend a Self Assessment tax return;
- submit an outstanding tax return;
- make a disclosure for an earlier year; or
- provide HMRC with calculations and an explanation of the position.
A Self Assessment return can generally only be amended within the statutory amendment window. Where that deadline has passed, a separate disclosure may be needed.
The correct route also depends on whether HMRC has already contacted you and how far its compliance activity has progressed. A disclosure made after receiving a nudge letter may be treated as prompted rather than unprompted, which can affect the penalty position.
We will advise on the most appropriate response based on your individual circumstances rather than assuming that every nudge letter should be handled in the same way.
Step 5: Deal With Tax, Interest and Penalties
If the review identifies underpaid tax, HMRC may also charge late payment interest and consider whether a penalty should apply.
Penalties are influenced by the circumstances behind the error. HMRC will consider whether reasonable care was taken, whether the behaviour was careless or deliberate and the extent to which the taxpayer helps HMRC understand and resolve the position.
We can help explain the facts clearly, including the records previously available, any reliance placed on software or professional advice and the steps taken to correct the position.
We cannot guarantee that HMRC will reduce or withdraw a penalty. However, a clear, complete and well-supported disclosure can help ensure that the circumstances are assessed accurately.
We can also review HMRC’s calculations and, where appropriate, make representations concerning the penalty treatment.
For more information, see our guide to HMRC penalties for crypto tax errors.
Can We Deal With HMRC for You?
Yes, Cryptoccountant can act as your tax agent and deal with HMRC on your behalf.
This may include reviewing HMRC correspondence, preparing tax calculations and supporting schedules, drafting and sending the response, making any required amendments or disclosures and dealing with follow-up questions.
The exact scope of the work will depend on the condition of your records, the number of years involved and whether HMRC has opened a formal enquiry.
If you have already replied to HMRC, we can still review the position and act as your agent from that point onwards. It is important to address any incomplete or inaccurate response promptly, particularly if further records or errors have since come to light.
Conclusion
Receiving a letter from HMRC does not necessarily mean that you have underpaid tax. However, it does mean that your position should be reviewed carefully.
The safest approach is usually to establish the facts before responding. That means understanding your full crypto history, checking whether the underlying records are reliable and confirming whether previous tax returns accurately reflected your income and gains.
If nothing has been missed, a review can provide reassurance and support an appropriate response to HMRC. If errors are identified, taking a structured approach allows the correct amendment or disclosure to be made using figures that can be properly explained and supported.
If you have received received correspondence from HMRC and are unsure how to respond, Cryptoccountant can support you from the initial records review through to dealing with HMRC.
