If you submit a Self Assessment tax return in the UK and your tax bill exceeds £1,000, you will likely encounter Payments on Account. This system often surprises self-employed business owners and company directors alike.
Payments on Account are advance payments toward your upcoming tax bill. Understanding how they work—and when you can legally reduce them—is essential for managing personal cash flow.
Based in Cheltenham, I assist sole traders and company directors across Gloucestershire in navigating HMRC rules smoothly. Here is your definitive guide to Payments on Account.
How Payments on Account Are Calculated
HMRC splits your estimated upcoming tax liability into two equal installments based on your previous year’s bill:
- First Payment Due: 31st January (during the current tax year).
- Second Payment Due: 31st July (following the end of the tax year).
If your actual tax liability turns out to be higher than estimated, you pay a “balancing payment” on the following 31st January.
A Working Example of the Double Tax Impact
If your tax bill for year one is £3,000, on 31st January you must pay the £3,000 due, PLUS your first payment on account of £1,500 for year two—a total payment of £4,500. This first-year surge catches many business owners off guard.
Can You Reduce Your Payments on Account?
Yes. If you know your profits will decrease in the coming year (for example, due to losing a client, reduced trading, or taking time off), you can apply to HMRC to formally reduce your payments on account.
Warning: If you reduce payments too much and end up earning more than anticipated, HMRC will charge interest and potential penalties on the shortfall.
Strategic Tax Planning in Cheltenham
Managing tax payments accurately requires early calculations. Submitting your annual Self Assessment tax returns early in the summer allows you to adjust payments on account with confidence, backed by proactive business advice and tax planning.
Avoid Self Assessment Surprises
Get your tax calculations right and protect your cash flow with local support from an ICAEW Chartered Accountant in Cheltenham. Read more about my background or request a tax review today.
Calculate your upcoming deadlines directly on the GOV.UK Payment on Account guide.