UK Self-Employed Tax Guide 2024/25
Understanding Self Assessment
When you are self-employed in the UK, you don't have tax automatically deducted via PAYE. Instead, you must report your earnings to HMRC through a **Self Assessment tax return** by 31st January each year.
Your liability is calculated based on your trading profit (Total Income minus Allowable Business Expenses).
Allowable Expenses
- Office equipment and stationery
- Travel costs (fuel, parking, train fares)
- Marketing and website costs
- Professional insurance and software subscriptions
National Insurance Changes
The 2024/25 tax year brought significant changes to National Insurance for the self-employed:
- Class 2 NICs: Effectively abolished for many. You no longer need to pay Class 2 if your profits are above £6,725 to access contributory benefits.
- Class 4 NICs: The rate has been reduced from 9% to 8% on profits between £12,570 and £50,270.
Payments on Account
If your tax bill is more than £1,000, HMRC will usually ask for"Payments on Account". This means you pay half clearly for the next year in advance. This can catch new freelancers off guard, as the first bill can be 150% of what was expected.