MTD deadline: 0 daysGet Ready Now →

Self Assessment — Guides, Tips & Expert Advice

Self assessment tax return guides, tips, and deadlines for UK sole traders and freelancers.

96 articles on Self Assessment

Self Assessment

Self Assessment Overpayment: How to Get a Refund

If you have overpaid through Self Assessment, HMRC will refund the difference. Here is how the process works.

17 March 2026·1 min read
Read more →
Self Assessment

Self Assessment Paper Return Deadline: October 31st

If you file a paper Self Assessment return, the deadline is 31 October — three months earlier than online.

17 March 2026·1 min read
Read more →
Self Assessment

Self Assessment Payment on Account: What It Is and How to Budget for It

Payments on account catch many sole traders off guard. Here is how they work, when they are due, and how to budget so January is not a financial shock.

17 March 2026·3 min read
Read more →
Self Assessment

Self Assessment Penalties: How to Avoid Them and What to Do If You Get One

Late filing, late payment, and inaccurate returns all carry penalties. Here is the full breakdown and how to avoid or appeal them.

17 March 2026·3 min read
Read more →
Self Assessment

Self Assessment Penalties at a Glance

A quick reference card for all Self Assessment penalties — late filing, late payment, and inaccuracies.

17 March 2026·1 min read
Read more →
Self Assessment

Self Assessment and the Personal Allowance

The personal allowance is the amount you can earn tax-free. Here is how it works and when you might lose it.

17 March 2026·1 min read
Read more →
Self Assessment

Self Assessment Record Keeping: What to Save and for How Long

HMRC requires you to keep business records for a minimum period. Here is what to save and how long to keep it.

17 March 2026·2 min read
Read more →
Self Assessment

What Is an SA302 and How to Get One

Mortgage lenders and others often ask for an SA302. Here is what it is and how to get yours from HMRC.

17 March 2026·2 min read
Read more →
Self Assessment

Self Assessment and Savings Interest: Do You Need to Report It

With rising interest rates, more people earn taxable savings interest. Here is when you need to report it on Self Assessment.

17 March 2026·1 min read
Read more →
Self Assessment

Simple Assessment vs Self Assessment: What's the Difference

HMRC's Simple Assessment calculates your tax for you. Here is how it differs from Self Assessment and who gets one.

17 March 2026·2 min read
Read more →
Self Assessment

Self Assessment and Student Loan Repayments

If you are self-employed with a student loan, repayments are collected through Self Assessment. Here is how it works.

17 March 2026·2 min read
Read more →
Self Assessment

Self Assessment and Your Tax Code

Your tax code affects how much tax your employer deducts. Here is how it interacts with Self Assessment.

17 March 2026·1 min read
Read more →

Ready to simplify your bookkeeping?

14-day free trial. No credit card required. Cancel anytime.

Start Your 14-Day Free Trial →
Self Assessment — Guides, Tips & Expert Advice | Accounted Blog