If you are self-employed or earn income outside PAYE, understanding what is payment on account UK is not only beneficial, but also essential for preventing unnecessary tax surprises. Every year, thousands of taxpayers are surprised by a larger-than-expected tax bill from HMRC. This is not because you are doing anything wrong, but rather due to a lack of understanding of how advance tax works.

What is Payment on Account UK?

To understand what is payment on account UK, you need to know that it is a system HMRC uses to collect tax in advance. So these are payments towards your next tax bill (including Class 4 National Insurance if you are self-employed). These payments help spread the cost of your taxes by paying in two instalments. Each payment is equal to half of the amount you owed last year in taxes. These payments are due by midnight on 31 January and 31 July.

You must make these two payments, unless either:

• The amount of tax you owed last year was less than £1,000
• Last year, more than 80% of your tax was collected at source, for example, through PAYE.

Who Needs To Make Payments On Account?

Advance tax payments are not optional for all individuals; they are based on your income and tax circumstances. This is exactly when what is payment on account UK comes into play, and you are required to make a payment if:

If your last Self Assessment tax bill exceeded £1,000, you are required to make payments on account. However, you will not usually need to make payments on account if more than 80% of your tax was collected at source, such as through your tax code, if you are an employee.

HMRC automatically includes payments on account in your Self Assessment tax bill if you meet the criteria; therefore, there is no need to establish them.

How Are Payments On Account Calculated?

Calculating your advance tax may appear complex at first, but it is based on a simple formula used by HMRC. When looking at what is payment on account UK, the calculation is directly linked to your previous year’s tax bill. In most cases, HMRC divides your previous year’s relevant tax bill into two equal instalments, which serve as your HMRC advance tax payments for the next year.

Consequently, the more you understand your prior tax figures, the more straightforward it is to determine the amount you will need to pay in advance and prevent any surprises.

For example:

If you paid £2,000 in tax last year, each payment on account will be £1,000. If you are self-employed, your payments include both income tax and Class 4 National Insurance.

How Do Payments On Account Work?

Payments on account are designed to help self-employed individuals and other individuals who do not have tax deducted at source in spreading the cost of their tax bill. To see how the system works, it is important to analyse the payment structure established by HMRC. This is where what is payment on account UK becomes clearer, as it follows a fixed schedule of advance payments. The system functions as follows:

Estimation based on the previous year:

By reviewing your tax statement from the previous year, HMRC estimates your tax liability for the current year.

Two Instalments:

The estimated amounts are divided into two equal payments:

• The first payment is due by 31st January, along with any outstanding payments from the last year.
• The second payment is due by 31st July

Calculation Example

Assuming your tax bill for 2024/25 was £5,000, your payments on account for 2025/26 would consist of two instalments of £2,500 each.

What Are the Key Deadlines to Remember?

It is important to remember the following dates in order to stay informed about your tax obligations:

• 31st January:

Submit your Self-Assessment tax return.

Pay any balancing payment that is due for the last tax year.

Make the first payment on account for the current tax year.

• 31st July

Submit your second payment for the current tax year.

You can more effectively manage your finances and prevent potential penalties or interest charges from HMRC by understanding what is payment on account UK and following these deadlines.

What Are The Consequences of Overpaying or Underpaying?

Another important part of what is payment on account UK is the process of making adjustments when actual income differs from estimates. If you overpay, HMRC will either refund the excess amount or carry it forward to reduce your future tax liability. Conversely, if you fail to pay the full amount, you need to pay the remaining balance by the next deadline. This process ensures that your HMRC advance tax payments stay consistent with your actual earnings and ultimate tax liability.

How Does A Payment On Account Refund Work?

Payment on account refunds are a key component of what is payment on account UK, particularly when the actual income is lower than expected. These refunds occur when you have paid more tax in advance than you owe through HMRC advance tax payments. HMRC evaluates your figures to determine whether an overpayment has occurred once you submit your tax return.

The refund is typically processed automatically if HMRC already has your bank details. Nevertheless, if it is not issued automatically, you may request it manually through your HMRC online account.

How Can You Reduce Your Payments On Account?

If you expect your income to be lower than last year, you can apply to reduce your payments on account.

Application strategies:

• Online, log in to your Government Gateway account and complete the digital form.
• By post, submit form SA303 to HMRC.

Some important risks to consider

• If you reduce your payments too much, you may need to pay interest on the shortfall
• If you submit a fraudulent or negligent claim in order to reduce payments, you may be subject to penalties for significant underpayments.
• If your payments on account are reduced, you can prepare for a higher year-end tax obligation.

Let Our Experts Handle Your Tax Payment

Are you a content creator or influencer experiencing difficulty managing your cash flow, and are uncertain about what is payment on account UK for your earnings? You do not have to handle it alone. At Influencers accountants, we understand influencer income streams and UK tax regulations and provide professional support to legally reduce and manage HMRC advance tax payments. With our guidance, you can stay ahead of deadlines, avoid penalties, and keep your finances organised and stress-free.

Contact us today to get personalised support with your tax needs. Our flexible self-employed accounting plans, which include Core Accounting at £45 + VAT per month and Compliance at £35 + VAT per month, are designed to manage your finances.

Final Thoughts

At this point, you should now have a comprehensive understanding of what is payment on account UK and its impact on your finances. Initially, these advance tax payments may seem overwhelming; however, with the right preparation, they can be managed effectively. It is important to stay informed about HMRC advance tax payments to avoid surprises and maintain healthy cash flow.