Resources
Self Assessment Hub
Everything you need to file Self Assessment confidently. Deadlines, what documents you need, how payments work, and what to do if you are late.
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Basics
What Self Assessment is, who needs to file, and what counts as taxable income.
Deadlines
Key dates for registration, filing, and payment. Do not miss these.
Payments
How to pay HMRC, payment on account, and what happens if you pay late.
Penalties
Late filing and late payment penalties explained. What to do if you miss a deadline.
Documents
Everything you need to gather before you file, organised by income type.
Most read
What is Self Assessment?
Self Assessment is the system HMRC uses to collect income tax from people whose income is not taxed at source. Here is what it means and how it works.
4 min read
31 January deadline explained
The most important date in the Self Assessment calendar. What you need to submit, when to pay, and what happens if you miss it.
4 min read
Who needs to file Self Assessment?
Sole traders, landlords, company directors, and high earners. A clear checklist to see if you are in scope.
3 min read
How to pay your tax bill
Bank transfer, Direct Debit, debit card, or online banking. The fastest and safest ways to pay HMRC.
4 min read
Late filing penalties
How late filing penalties build up: the £100 immediate fine, daily penalties, and 6 and 12 month escalations.
5 min read
Documents you need to file Self Assessment
A clear checklist of what to gather before you start, organised by income type. Saves hours of chasing paperwork at the last minute.
4 min read