What is a Balancing Payment?

byDaniel Greenaway/Published:23rd March 2026/inContractors, Freelancers, Self Employed

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If you complete a Self Assessment tax return in the UK, you will likely come across the term “balancing payment”. This is a key part of how HM Revenue & Customs (HMRC) ensures you pay the correct amount of tax for a given tax year.

In simple terms, a balancing payment is the final amount of tax you owe after your total tax liability has been calculated and any advance payments have been taken into account.

For many taxpayers, this amount becomes due on 31 January following the end of the tax year. It often appears alongside payments on account, which can make the total bill feel higher than expected if you are not familiar with how the system works.

In this 2026 guide, we will explain clearly:

What a balancing payment is
Who needs to make one
How it is calculated
How it links to payments on account
Common mistakes to avoid
Practical examples to bring it to life

Balancing payments form part of the UK’s Self Assessment system, which is administered by HMRC. You can find official guidance and deadlines on the HRMC website.

Tip: If your income is not taxed at source, such as freelance, rental, or dividend income, understanding balancing payments is essential to avoid unexpected tax bills and potential late payment penalties.

What Is a Balancing Payment?

A balancing payment is the amount you need to pay to settle the difference between:

The tax you have already paid (including payments on account or tax deducted at source), and
Your total tax liability for the relevant tax year.

In essence, it “balances” your tax position once your Self Assessment return has been submitted and your final figures are confirmed.

If you have underpaid tax during the year, you will need to pay the remaining amount as a balancing payment. This typically arises where income has not been fully taxed at source, such as:

Self-employment or freelance income
Rental income from property
Dividends from a limited company
Other untaxed or partially taxed income streams

Balancing payments are usually due by 31 January following the end of the tax year, in line with Self Assessment deadlines set by HMRC.

Key point: A balancing payment is not an additional tax. It is simply the final amount required to ensure you have paid the correct total tax for the year.

For full details on how your tax bill is calculated, HMRC provides guidance via How to calculate your Self Assessment tax bill (GOV.UK)

When Is a Balancing Payment Due?

For most individuals in the UK, a balancing payment is due by 31 January following the end of the relevant tax year. This is a fixed deadline set by HM Revenue & Customs (HMRC) and applies to the majority of Self Assessment taxpayers.

For example:

Tax year ends: 5 April 2026
Balancing payment due: 31 January 2027

This deadline coincides with the online Self Assessment tax return submission deadline. As a result, many taxpayers calculate their final liability and settle their balancing payment at the same time.

It is important to be aware that this date is also when your first payment on account for the following tax year may be due, which can significantly increase the total amount payable in January.

Tip: Submitting your tax return well in advance of 31 January gives you more time to prepare for any balancing payment and avoid cash flow pressure after the festive period.

Late payment can result in interest charges and penalties from HMRC. You can review current deadlines and penalties on the official GOV.UK guidance:

Self Assessment deadlines (GOV.UK)

Who Makes a Balancing Payment?

You may need to make a balancing payment if your income is not fully taxed at source and you are required to complete a Self Assessment tax return.

This commonly applies if you:

Are self-employed or a sole trader
Receive rental income from UK or overseas property
Earn dividend income outside of PAYE
Have other forms of untaxed income, such as freelance or side income
Owe tax that has not been fully collected through your tax code

While balancing payments are often associated with business owners, employees can also be affected. This typically happens where additional income has not been taxed at source, for example:

Income from investments or dividends
Rental income alongside employment
High earnings where tax adjustments were not fully captured through PAYE

In these situations, HMRC may not be able to collect the full amount owed through your tax code, meaning a balancing payment becomes due once your Self Assessment return is submitted.

Key point: If all of your income is taxed correctly through PAYE, you are unlikely to have a balancing payment. However, as soon as you have additional or more complex income streams, a year-end adjustment is often required.

To check whether you need to complete a tax return and potentially make a balancing payment, refer to the official guidance:

Check if you need to send a Self Assessment tax return (GOV.UK)

Self Assessment Tax Return Service

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How Is It Calculated?

Your balancing payment is calculated once your total tax liability for the tax year has been finalised through your Self Assessment return.

The process works as follows:

Calculate your total tax liability for the year. This includes Income Tax, Class 2 and Class 4 National Insurance (if applicable), and any other relevant charges.
Deduct any tax already paid, such as PAYE deductions, payments on account, or tax withheld at source.
The remaining amount is your balancing payment, which must be paid by the 31 January deadline.

If the total tax you have already paid exceeds your actual liability, you will not have a balancing payment. Instead, you will be entitled to a tax refund, which HMRC will typically issue after your return has been processed.

What Is Included in Your Tax Liability?

Your final tax bill may include multiple elements, depending on your circumstances:

Income Tax on profits, dividends, or rental income
Class 2 and Class 4 National Insurance contributions
Student loan repayments (if applicable)
High Income Child Benefit Charge (where relevant)

Tip: Many taxpayers underestimate their balancing payment because they forget to account for National Insurance or additional charges. Always review your full tax calculation before the deadline to avoid surprises.

You can see a full breakdown of your calculation within your HMRC online account after submitting your return. For further detail, refer to: How to calculate your Self Assessment tax bill (GOV.UK)

Example: Sole Trader Scenario

To bring this to life, here is a simple example of how a balancing payment works in practice for a sole trader.

Scenario:

Emma is a sole trader
Her total tax liability for the 2025/26 tax year is £12,000
She has already made two payments on account of £4,000 each

Calculation:

Total already paid: £8,000
Total tax due: £12,000
Balancing payment: £4,000

Emma must pay the remaining £4,000 by 31 January following the end of the tax year to settle her tax bill in full.

What to Watch Out For

In reality, Emma may also need to make a first payment on account for the next tax year at the same time, depending on her circumstances. This could significantly increase the total amount due in January.

Tip: Many sole traders focus on the balancing payment and overlook payments on account. Always check your full HMRC statement so you understand the total amount payable, not just the balancing figure.

This example highlights why forward planning is essential. Setting aside money regularly throughout the year can help avoid cash flow pressure when the January deadline arrives.

How It Links to Payments on Account

This is where confusion often arises for many taxpayers.

When you reach the 31 January deadline, you may be required to make more than one payment to HMRC at the same time:

Your balancing payment for the previous tax year
Plus your first payment on account for the following tax year

You will then typically need to make:

The second payment on account by 31 July

This structure is part of HMRC’s system to collect tax in advance where income is not taxed at source. While it helps spread the cost over time, it can make the January payment feel significantly higher than expected.

Why January Bills Can Be High

The January deadline effectively combines settling the past year and prepaying the next. For example, if your balancing payment is £4,000 and your first payment on account is £4,000, your total January bill would be £8,000.

Key point: Payments on account are advance payments towards your next tax bill. They are not additional tax, but they do impact your cash flow.

Practical Tips to Manage This

Budget throughout the year by setting aside a percentage of your income for tax
Review your HMRC statement early to understand what is due in January
Check if you can reduce payments on account if your income has fallen, using HMRC’s guidance: Understanding payments on account (GOV.UK)

Being aware of how these payments interact is key to avoiding surprises and managing your business cash flow effectively.

What If Your Income Falls?

If your profits drop significantly, you may be able to apply to reduce your payments on account. This can help ease cash flow if your expected tax bill for the following year will be lower.

However, caution is essential:

If you reduce your payments too far
And your actual tax bill turns out to be higher
Interest will be charged by HMRC on the shortfall

Any reduction should be based on realistic and well-supported estimates of your income. HMRC expects figures to be reasonable and may challenge excessive reductions.

Reduce your payments on account (GOV.UK)

Tip: If your income is fluctuating, review your position regularly throughout the year rather than waiting until January.

What Happens If You Don’t Pay?

If your balancing payment is not paid by the deadline, HMRC will apply charges automatically under Self Assessment rules.

Interest accrues immediately from the due date
Late payment penalties may be applied
Additional penalties are added after 30 days, 6 months, and 12 months

These penalties can escalate quickly, increasing the overall cost of your tax bill.

Self Assessment penalties (GOV.UK)

Key point: Even if you cannot pay in full, contacting HMRC early to arrange a payment plan can help reduce penalties and demonstrate compliance.

Can a Balancing Payment Be Avoided?

You cannot avoid paying tax that is legally due. However, you can take steps to reduce the size and impact of your balancing payment through effective planning.

Practical strategies include:

Setting aside tax monthly based on your income
Making voluntary payments to HMRC during the year
Managing the timing of income and expenses where appropriate
Claiming all allowable business expenses correctly
Making pension contributions before the tax year ends

Tip: Most “January tax shocks” are caused by lack of planning rather than high tax rates. A proactive approach can make your liabilities far more manageable.

Does a Limited Company Have Balancing Payments?

The term balancing payment generally applies to individuals under the Self Assessment system, not limited companies.

Limited companies instead:

Pay Corporation Tax within 9 months and 1 day after the end of their accounting period
Do not use payments on account in the same way, except in the case of very large companies

Corporation Tax overview (GOV.UK)

However, company directors may still have personal balancing payments if they receive dividends or other untaxed income and complete a Self Assessment return.

What If You Overpay?

If your payments on account exceed your final tax bill, the difference will not be lost.

The excess will be refunded to you, or
Offset against future tax liabilities

You can request a repayment directly through your HMRC online account once your return has been submitted and processed. Claim a tax refund (GOV.UK

Common Mistakes

Balancing payments are often misunderstood, which can lead to avoidable issues. Some of the most common mistakes include:

Forgetting that payments on account are due alongside the balancing payment
Not setting aside funds throughout the year to cover tax liabilities
Underestimating higher-rate tax exposure, especially as income grows
Ignoring interest and penalties on late payments
Failing to reduce payments on account when income drops

Key takeaway: Unexpected January tax bills are rarely a surprise to HMRC. They are usually the result of poor planning rather than complex rules. Staying informed and preparing early makes all the difference.

Final Thoughts on Balancing Payments

A balancing payment is simply the final amount of tax you owe once your total liability has been calculated and any advance payments have been taken into account.

In summary, it is:

Due by 31 January following the end of the tax year
Based on your actual tax liability, not estimates
Often paid alongside payments on account, increasing the total due at that point

Understanding how balancing payments interact with advance payments is essential for managing cash flow effectively and avoiding unexpected financial pressure.

The most effective approach is to stay proactive throughout the year:

Track your profits regularly so there are no surprises
Estimate your tax liability quarterly to stay on top of what you owe
Set funds aside consistently in a separate account for tax

Final tip: When tax is planned for in advance, balancing payments become a routine part of running your business rather than a last-minute burden.

If you are unsure about your position or want to improve your tax planning, seeking a professional accountants advice can help ensure accuracy, compliance, and peace of mind.

Need help with your Self Assessment? Contact Accounting Wise Today!

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