What happens if I cannot pay my tax on time in the UK?

If you cannot pay your tax on time, HMRC will charge interest on the outstanding amount. In some cases, penalties may also apply depending on how late the payment is. It is important to act quickly to avoid escalating costs.

Can I set up a payment plan with HMRC if I cannot pay my tax?

Yes, HMRC may allow you to set up a Time to Pay arrangement, which lets you spread your tax bill over monthly instalments. This helps businesses and individuals manage cash flow while clearing tax debt gradually.

Will HMRC charge penalties if I miss my tax payment deadline?

Yes, HMRC may charge penalties if tax is not paid by the due date, especially if payments are significantly delayed. Interest is charged immediately, and penalties can increase over time if no arrangement is made.

What should I do immediately if I cannot pay my tax bill?

You should contact HMRC as soon as possible and explain your situation. Acting early increases the chances of agreeing a payment plan and helps avoid enforcement action or additional penalties.

Can I avoid penalties if I inform HMRC early?

In some cases, early communication with HMRC can help reduce penalties or prevent enforcement action. While interest is still charged, proactive engagement often leads to more flexible repayment options.

What is a Time to Pay arrangement with HMRC?

A Time to Pay arrangement is an agreement that allows taxpayers to repay outstanding tax in instalments over an agreed period. It is designed to support individuals and businesses facing temporary financial difficulties.

Can unpaid tax affect my business or credit rating?

Yes, unpaid tax can lead to enforcement action from HMRC and may affect your business reputation. In severe cases, it can also impact creditworthiness and lead to further financial restrictions.

Cannot Pay Your Tax on Time? What HMRC Expects and What You Can Do

Cannot Pay Your Tax on Time? What to Do Before HMRC Takes Action

This guidance is for UK taxpayers who know they cannot pay their tax bill on time and need to understand what HMRC expects them to do next.

If you miss a tax payment deadline without taking action, HMRC can charge interest, penalties, and may begin enforcement. Contacting HMRC early can make a material difference to the options available, including whether a Time to Pay arrangement is possible.

What Happens If You Do Nothing

If you do not pay your tax on time and do not contact HMRC, late payment interest will usually apply from the original due date. In addition, HMRC may charge late payment penalties depending on how long the debt remains unpaid.

Where tax remains outstanding, HMRC can escalate matters to debt collection activity or enforcement action. Once this stage is reached, options such as Time to Pay may become more limited.

In Practice – When Contacting HMRC Early Matters

In practice, we often see taxpayers delay contacting HMRC because they hope to pay shortly after the deadline. Unfortunately, this delay can reduce flexibility and make negotiations more difficult. Early contact is usually viewed more favourably and can help prevent matters escalating unnecessarily.

For tailored support, speak to experienced accountants in London who regularly assist individuals dealing with overdue tax and HMRC contact. Our local team can help you understand your options and approach HMRC in the correct way.

Find out more about our accounting support in London

HMRC explains when and how you may be able to set up a Time to Pay arrangement, and what information you may need to provide, in its official guidance:
If you cannot pay your tax bill on time.

Review What to Do Before HMRC Takes Action

If you cannot pay your tax bill on time, the steps you take before HMRC intervenes can affect penalties, interest, and enforcement. A short review now can help clarify whether contacting HMRC immediately is the right move, or whether using a Self assessment payment service in London is more appropriate.

Cannot Pay Your Tax on Time: HMRC Options, Penalties, and Support

If you cannot pay your tax on time, it is important to act early rather than waiting for HMRC to take enforcement action. Late or missed payments can lead to interest charges and penalties, and in more serious cases, HMRC may escalate recovery action. However, support options are available if you contact HMRC promptly and explain your situation.

HMRC may allow a Time to Pay arrangement, which lets taxpayers spread their liability over manageable instalments. This is often used for income tax, corporation tax, or VAT when temporary cash flow issues arise. Understanding your obligations early can reduce the risk of additional charges and protect your compliance position.

At Cigma Accounting, we support clients across Farringdon, helping them manage tax payment difficulties and communicate effectively with HMRC. We also assist individuals and businesses in Clerkenwell and Holborn, ensuring tax liabilities are handled correctly and structured repayment options are considered where needed in 2026.