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 and Class 2 National Insurance
Class 2 NI is a small weekly charge for the self-employed that protects your State Pension entitlement. Here is how it works.
Self Assessment and Class 4 National Insurance: How It's Calculated
Class 4 NI is calculated on your self-employment profits and can be a significant part of your tax bill. Here is how it works.
Coding Out: Paying Tax Through Your Tax Code
If you owe a small amount through Self Assessment, HMRC can collect it by adjusting your PAYE tax code.
The 12 Most Common Self Assessment Mistakes
These twelve errors trip up sole traders every year. Here is what to watch out for on your Self Assessment return.
Self Assessment Tax Return: The Complete Guide for UK Sole Traders 2026/27
Everything sole traders need to know about filing their Self Assessment tax return for the 2026/27 tax year, from registration to submission.
Self Assessment and Cryptocurrency: How to Report Crypto Income
Cryptocurrency is taxable in the UK. Here is how to report crypto gains and income on your Self Assessment return.
The January 31st Deadline: What You Need to Know
January 31st is the most important date in the Self Assessment calendar. Here is what is due and how to be ready.
Self Assessment Deadlines 2026/27: Every Date You Need
Every key Self Assessment deadline for the 2026/27 tax year in one place, from registration to final payment.
Reporting Dividends on Self Assessment
If you receive dividends from shares or your own company, here is how to report them on your Self Assessment return.
Self Assessment If You're Employed and Self-Employed
If you have a day job and a side business, you need Self Assessment for the self-employed income. Here is how the two work together.
Self Assessment Expenses: The Complete List of What You Can Claim
A comprehensive list of every expense sole traders can claim on their Self Assessment tax return, organised by category with practical examples.
Benefits of Filing Your Self Assessment Early
You can file your Self Assessment from 6 April. Here is why filing early is one of the smartest things you can do.
Ready to simplify your bookkeeping?
14-day free trial. No credit card required. Cancel anytime.
Start Your 14-Day Free Trial →