If you've ever received a Self Assessment tax bill that was much larger than expected, there's a good chance Payments on Account were involved.

Every year we speak to business owners who have carefully planned for their tax bill, only to discover HMRC wants another payment at the same time.

The result?

Stress.
Cashflow pressure.
And a lot of confusion.

Let's break down what Payments on Account are, who needs to pay them, and how you can prepare.

What Are HMRC Payments on Account?

A Payment on Account is an advance payment towards your next Self Assessment tax bill.

HMRC uses Payments on Account to collect tax earlier from people whose income isn't taxed at source, such as:

• Sole traders

• Consultants

• Coaches

• Freelancers

• Business owners receiving untaxed income through dividends

• Some landlords

Rather than waiting until the end of the next tax year, HMRC asks you to make two advance payments based on your previous year's tax bill.

Who Has to Pay Payments on Account?

You will usually need to make Payments on Account if:

• Your Self Assessment tax bill was more than £1,000

• Less than 80% of your tax was already collected through PAYE

If both conditions apply, HMRC will typically calculate Payments on Account automatically.

When Are Payments on Account Due?

Payments are made in two instalments:

31st January

This is usually the busiest tax deadline of the year because you may need to pay:

• Your balancing payment for the previous tax year

• Your first Payment on Account for the following tax year

31st July

Your second Payment on Account becomes due.

Each payment is usually 50% of the previous year's tax bill.

Why Payments on Account Cause Problems

The challenge isn't usually the tax itself.

The challenge is timing.

Many business owners budget for the tax they've already incurred but don't realise HMRC may ask for another substantial payment at the same time.

For example:

If your tax bill for the year is £10,000, and then you meet the threshold for payments on account, HMRC may require:

• £10,000 balancing payment

• £5,000 first Payment on Account

Meaning a total payment of £15,000 in January.

Then another £5,000 in July.

Without planning, that can create significant pressure on cashflow.

Can Payments on Account Be Reduced?

Possibly.

If you believe your income and tax bill will be lower than the previous year, you may be able to apply to reduce your Payments on Account.

However, this should only be done if you have reliable forecasts and supporting figures.

Reducing them incorrectly can result in interest being charged later.

The Importance of Tax Forecasting

One of the biggest mistakes we see is treating tax as an annual event.

Successful business owners don't wait until January or July to think about tax.

They:

• Forecast tax liabilities throughout the year

• Set money aside regularly

• Monitor profitability monthly

• Review cashflow forecasts

• Plan ahead for major tax deadlines

Tax should never be a surprise.

How a Virtual Finance Team Can Help

The reality is that most business owners don't need more spreadsheets.

They need visibility.

At Sterling Financial Management, our Virtual Finance Team helps ambitious agencies and B2B service businesses:

• Forecast tax liabilities

• Manage cashflow

• Monitor profitability

• Build financial dashboards

• Make confident financial decisions

• Plan for growth without financial chaos

Because understanding your numbers isn't just about compliance.

It's about creating a business that gives you clarity, confidence and control.

Final Thoughts

Payments on Account aren't new.

But they still catch thousands of business owners out every year.

The good news is that with proper forecasting, cashflow planning and financial visibility, they don't have to be stressful.

If you're unsure what tax liabilities are coming your way, or you'd like support building a stronger finance function in your business, we'd love to help.

Click here to find out more and book a Discovery Call so there are no financial surprises waiting around the corner for your business.