Receiving a bill you can’t pay in full is stressful but it is a far more common scenario than a lot of people know. Every years millions of individuals and business owners across the UK lag due to Self Assessment or Corporation Tax. The good news is that HMRC would join hands to work with you rather than working against you. But this is only on one condition if you get in touch early and honestly explain your situation. If you ignore the problem, it will get you in more trouble.
This guide will help you take the right step if you owe HMRC money and strategise on what you owe to setting up a repayment plan. Also, thus guide will help you with understanding what happens when things don’t go in one’s favour.
Thing to Do If You Owe HMRC Money
1. Don’t Ignore the Letters
It’s fascinating to keep an HMRC letter in a drawer and hope the problem would fix just like that. It won’t. HMRC’s debt management approach in 2026 has become strict with rapid escalation to enforcement action and high use of external debt collection agencies along with the resumption powers that lets them to recover money directly from the bank accounts in certain situations. The longer a debt is not paid, the fewer choices remain available to you and it becomes harder to negotiate reasonable terms. Directors and tax payers who contact HMRC frequently even just to say “I can’t pay this on time” constantly get better results than those who wait until enforcement letters start reaching their doorstep.
2. Work Out Exactly What You Owe
Before you can decide on a plan of action, get a clear picture of the debt. Log in to your Personal Tax Account or Business Tax Account at GOV.UK to see an up-to-date balance, since figures can change daily as interest and penalties accrue. Make a note of:
- Which tax the debt relates to (Self Assessment, VAT, PAYE, Corporation Tax, etc.)
- The original amount due and the due date
- Any interest or penalties already added
- Whether you have other tax returns still outstanding, as HMRC generally won’t agree a payment plan until all returns are filed
If you have debts across several tax types, it can help to prioritise. PAYE and VAT are collected from employees and customers on HMRC’s behalf, so HMRC tends to pursue these more assertively. Corporation Tax, by contrast, is the business’s own liability and there is often more flexibility around it.
3. Contact HMRC as Soon as Possible
Once you know you can’t pay in full, call HMRC’s Payment Support Service before the due date if at all possible, or as soon as you can afterwards. Being proactive, even a few days before a deadline, puts you in a much stronger negotiating position than waiting for a demand to land. Have your reference numbers to hand, along with a broad idea of what you can realistically afford each month. HMRC will want to understand why you’ve fallen behind, so if there’s a specific cause, a client who didn’t pay you, an unexpected bill, illness, or a drop in trade, have the details ready to explain it.
4. Consider a Time to Pay Arrangement
A Time to Pay (TTP) arrangement is the main route HMRC offers to people who can’t clear a tax bill in one go. It’s an agreed plan that lets you spread the outstanding amount over monthly instalments, usually across three to twelve months, though longer arrangements of up to two or three years are sometimes possible if you can demonstrate the extra time is genuinely needed and affordable.
Some key points to understand about a TTP arrangement:
- It doesn’t reduce the amount you owe, it simply spreads the payments
- Interest continues to accrue on the outstanding balance throughout the arrangement, calculated from the original due date
- Payments are usually collected by Direct Debit to help avoid missed instalments
- If your bill is £30,000 or less for Self Assessment (or up to £50,000 for VAT) and the debt is recent, you may be able to set up a plan online through your Government Gateway account without speaking to anyone
- For larger or more complex debts, you’ll need to call HMRC directly and negotiate terms
- HMRC will expect you to keep up with any current and future tax obligations while repaying the arrears, falling behind again can cause the arrangement to collapse
HMRC will generally want the shortest realistic repayment period and the highest instalments you can sustain, so it’s important to offer only what you can genuinely afford. Offering too much and then missing payments is likely to do more damage than being upfront about a lower, sustainable figure from the outset.
5. Gather Evidence to Support Your Proposal
A well-prepared proposal is far more likely to be accepted. Before you call, put together:
- A simple breakdown of your income and essential outgoings
- Recent bank statements, if you’re self-employed or run a business
- A note of any exceptional circumstances affecting your ability to pay
- A realistic monthly figure you can commit to without risking further arrears
If you’ve already completed a Standard Financial Statement with Citizens Advice or another debt adviser, HMRC will usually accept this as evidence of your financial position.
6. Understand the Consequences of Doing Nothing
If a tax debt is left unpaid and no arrangement is put in place, HMRC can take increasingly serious action, including charging further late payment interest and penalties, instructing debt collection agencies, using distraint powers to seize goods, or ultimately pursuing court action such as a statutory demand or winding-up petition for businesses. None of these outcomes are inevitable, but the risk increases sharply the longer a debt is left unaddressed without any contact or agreement in place.
7. Explore Wider Support If Debts Are Serious
If your tax debt is part of a broader financial difficulty, or a Time to Pay arrangement genuinely isn’t realistic, it’s worth speaking to a free debt advice service such as Citizens Advice, StepChange or National Debtline, or, for businesses facing serious insolvency risk, a licensed insolvency practitioner. In rare cases involving very low income, no savings and no realistic prospect of ever repaying, HMRC may decide not to pursue a debt further, but this is uncommon and only considered where circumstances are fully and honestly explained.
8. Keep Communicating
If your circumstances change at any point during a repayment plan, whether for better or worse, tell HMRC straight away. Arrangements can sometimes be adjusted, and paying off a balance early reduces the total interest charged. The single most important principle throughout this whole process is communication: HMRC’s own guidance is consistent on this point, and case after case shows that taxpayers who engage early and honestly get markedly better outcomes than those who go quiet.
Conclusion
Owing HMRC money is rarely a crisis on its own, it becomes one only when it’s left unaddressed. HMRC has clear, well-established routes for people and businesses in genuine financial difficulty, and a Time to Pay arrangement can turn an unmanageable lump sum into a series of affordable monthly payments. The single biggest factor in how smoothly this process goes is timing: taxpayers who work out what they owe, contact HMRC early, and put forward a realistic, evidence-backed proposal consistently secure better terms than those who wait for enforcement action to force their hand. If your situation feels too complex to manage alone, don’t hesitate to bring in a qualified accountant such as Lexarox Accounts, tax adviser or debt charity. Getting the right support early is far cheaper, in every sense, than dealing with the consequences of delay.
Frequently Asked Questions
What happens if I ignore a tax bill from HMRC?
Interest and penalties will continue to build, and HMRC will typically escalate to enforcement action, which can include debt collection agencies, deduction from bank accounts, or, for businesses, court proceedings. Ignoring the bill removes your ability to negotiate on your own terms.
Can I set up a payment plan online?
Yes, for many Self Assessment debts of £30,000 or less (and some VAT debts up to £50,000), you can apply for a Time to Pay arrangement directly through your Government Gateway account without needing to call HMRC.
Will HMRC reduce the amount I owe?
No. A Time to Pay arrangement spreads payments over time; it doesn’t write off or reduce the underlying tax debt. Interest continues to accrue on the outstanding balance.
How long can a Time to Pay arrangement last?
Most arrangements run for six to twelve months, though longer terms of up to two or three years may be agreed in cases of genuine and demonstrable need, particularly where a professional adviser is involved.
Do I need to provide proof of my income and spending?
HMRC doesn’t always ask for formal proof, but you should be honest and accurate. If the information you give turns out to be missing or incorrect, HMRC can cancel the arrangement.
What if HMRC rejects my proposal?
You can’t formally appeal a refusal, but you can complain and ask for the decision to be reviewed, and ultimately refer the matter to the Adjudicator’s Office if you remain unhappy with the outcome.
Can I pay my HMRC bill by credit card?
Personal credit card payments are no longer accepted by HMRC for most tax bills, though some business debit and credit card options may still apply depending on the tax type, so it’s worth checking current payment methods on GOV.UK before assuming this route is available.
What if I owe several types of tax at once?
It’s usually best to address PAYE and VAT arrangements first, since HMRC treats these as money collected on its behalf and pursues them more firmly, while Corporation Tax debts tend to allow a little more flexibility.
