What to do if you receive one of hmrcs nudge’ letters

HMRC has become increasingly proactive in recent years, and one way they communicate with taxpayers is through what’s commonly known as “nudge” letters. These communications might seem alarming at first, but understanding what they are and how to respond can turn a potential headache into a straightforward matter. We’ve helped many clients at Severn Accounting navigate these letters, so here’s what you need to know.

What exactly is a nudge letter?

A nudge letter is an informal communication from HMRC that suggests you may have made an error on your tax return or that your tax affairs don’t match HMRC’s records. Rather than launching a full investigation, HMRC sends these letters as a gentle prompt to review your position and take corrective action if needed. They’re part of HMRC’s strategy to encourage voluntary compliance and reduce the number of taxpayers making mistakes.

These letters typically relate to self-assessment tax returns, VAT submissions, or company corporation tax filings. Common triggers include claiming expenses that seem unusually high relative to your turnover, failing to declare income that HMRC knows about (from RTI data, for example), or discrepancies between your return and information held by other parties, such as your employer or a client organisation.

The tone of a nudge letter is generally non-accusatory. HMRC isn’t suggesting you’ve deliberately evaded tax; rather, they’re inviting you to review your submission and make amendments if appropriate. That said, it’s a clear signal that HMRC is watching your file, so taking it seriously is important.

How to respond to a nudge letter

The first step is to read the letter carefully and identify exactly what HMRC is querying. They’ll usually highlight the specific area of concern—whether that’s a particular expense category, missing income, or a calculation error.

Next, review your records thoroughly. Check your accounts, invoices, bank statements, and supporting documentation to establish whether HMRC has a valid point. If you’ve claimed £10,000 in home office expenses but only work from home two days a week, that might be disproportionate. If HMRC has matched your return against RTI data and you’ve failed to declare employment income, that’s a clear error to correct.

If you find that HMRC is right, you can amend your tax return. For self-assessment, you can make amendments within 12 months of the filing deadline. However, if HMRC has already raised the query, it’s worth submitting the amendment promptly to show willing. You’ll likely owe additional tax, and possibly interest (calculated at the Bank of England base rate plus 2.5%), though penalties may be avoided if you act quickly.

If you believe HMRC is mistaken, you can request further clarification. Provide evidence supporting your original position—bank statements, receipts, or correspondence with clients, for instance. If the dispute continues, you have the right to challenge HMRC’s view, though this depends on the context and the sums involved.

When to seek professional help

Many nudge letters can be handled by the taxpayer alone, particularly if the issue is straightforward. However, there are situations where professional advice is worthwhile. If the letter involves complex matters—such as distinguishing between business and personal expenditure, determining the correct basis for claiming allowances, or if substantial sums are at stake—an accountant can review your position, identify any weaknesses in your argument, and help you respond in the most favourable way.

Professional input is especially valuable if HMRC’s concern relates to areas where the rules are genuinely ambiguous. For instance, determining whether specific costs qualify as allowable deductions under the Income Tax (Trading and Other Income) Act 2005 can be nuanced. An experienced accountant knows how HMRC interprets these rules and can help position your case appropriately.

Additionally, if you’ve received multiple nudge letters or if HMRC’s queries seem to be escalating, professional representation becomes even more important. It signals to HMRC that you’re taking compliance seriously and may help de-escalate the situation.

Conclusion

Receiving a nudge letter isn’t the end of the world. Most are resolved with a simple amendment or clarification. The key is to respond promptly, honestly, and thoroughly. Review your position carefully, and don’t hesitate to seek advice if you’re unsure. Acting quickly and transparently will almost always serve you better than ignoring the letter or attempting to justify a weak position.

For tailored advice, contact Severn Accounting — we’re here to help.