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Can I Pay Self-Assessment Tax Monthly?

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Navigating the complexities of tax payments can often be challenging for individuals handling their own finances under the Self-Assessment system. A common question that arises is whether it's possible to pay Self-Assessment tax monthly rather than in a lump sum. This article delves into the guidelines provided by HMRC and explores the practical considerations of monthly payments both before and after the payment deadline.

Understanding Self-Assessment Tax

Self-Assessment tax is a system HMRC uses to collect income tax. Tax is usually deducted automatically from wages, pensions, and savings. However, people with other income must report it in a tax return.

Monthly Payments Before the Deadline

1. Budget Payment Plan

HMRC offers a Budget Payment Plan (BPP) option, which allows you to make weekly or monthly payments towards your estimated tax bill. This plan is available to those who are up to date on their tax returns and payments. Here’s how you can utilise this plan effectively:

Eligibility: You must have filed all your tax returns and paid any tax due. You can set up a BPP using your HMRC online account.

Setting Up: You can set up the plan through HMRC’s online service by choosing how much to pay regularly to avoid a large bill at the end of the year.

Flexibility: You have the flexibility to change or stop your payments anytime if your circumstances change.

2. Advantages of Early Payments


Reduced Financial Burden: Spreading your tax payments throughout the year can help manage cash flow better and reduce the financial strain of a lump-sum payment.

Interest Benefits: Interestingly, HMRC pays interest on any tax you pay before the deadline. This can slightly reduce your total tax bill.

Monthly Payments After the Deadline

1. Time to Pay Arrangement

If you find yourself unable to pay your tax bill on time, HMRC may offer a ‘Time to Pay’ arrangement after the payment deadline has passed. This arrangement allows you to pay your overdue taxes through instalments.

Eligibility: This is generally available to those owing less than £30,000. You must also propose a payment plan that would pay off the debt within 12 months.

Interest and Penalties: Unlike the BPP, interest is charged on outstanding balances under this arrangement. There might also be penalties depending on how late you have initiated payments.

2. Considerations for Late Payments

Continuous Debt Management: Keep in regular contact with HMRC, especially if you think you will miss a payment under an existing payment plan.

Credit Score Impact: Late payments and entered agreements can affect your credit rating, which might influence future borrowing.

Practical Considerations

1. Estimating Tax Liability

It’s crucial to estimate your tax liability accurately when opting for monthly payments. Use HMRC’s online tools or consult with an accountant to understand your tax commitments.

2. Keeping Records

Maintain thorough records of all payments made, as this will be invaluable if discrepancies arise between your records and HMRC’s records.

3. Regular Review

Regularly review your payment plan and tax liability, especially if your income changes, to adjust your monthly payments accordingly.


Paying your Self-Assessment tax on a monthly basis is certainly possible and can be financially prudent under the right circumstances. By understanding the options available and choosing the right payment strategy, you can alleviate the stress of lump-sum payments and better manage your financial health. Always consider using HMRC’s resources or consulting a professional to ensure that your approach to tax payment is tailored to your financial situation.

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