How to Stay Ahead of Your Tax Bill
The best protection against any recovery action is not letting unpaid tax build up in the first place. For most self-employed people, that comes down to planning and good records.
Set Money Aside as You Earn
If you move a share of every payment you receive into a separate savings account, your bill is much less of a shock when it arrives. Our article on how to budget for your Self Assessment tax bill walks through practical ways to do this.
Talk to HMRC Early
If you know you can't pay in full, contact HMRC before the deadline rather than after it. For the 2025-26 tax year, the balancing payment is due by 31 January 2027. [Editor Note: Unverified date - check against HMRC guidance]
HMRC may agree a payment arrangement that lets you spread the cost over time. Ignoring letters is exactly the behaviour these proposals are designed to tackle.
Keep Records You Can Rely On
Accurate records of your income and allowable expenses (the business costs you can take off your income before tax is worked out) make mistakes easier to spot. If a bill ever looks wrong, good records give you the evidence to query it.