Self Assessment

Includes filing, deadlines, pay and tax records

Overview

• Self Assessment tax returns
• Check how to register for Self Assessment
• Check if you need to send a Self Assessment tax return
• Cash basis

Sign in and file a tax return

• File your Self Assessment tax return online
• Find your UTR number

Record keeping

• Keeping your pay and tax records
• Get your SA302 tax calculation

Paying your tax bill

• Pay your Self Assessment tax bill
• Understand your Self Assessment tax bill
• If you cannot pay your tax bill on time

Capital allowances

• Claim capital allowances
• Capital allowances when you sell an asset
• Work out your writing down allowances

Forms and helpsheets

• Self Assessment tax return forms
• Self Assessment tax return helpsheets

If you’re self-employed

• Estimate your Self Assessment tax bill
• Simplified expenses if you're self-employed
• Business records if you're self-employed

Refunds, appeals and penalties

• Check how to claim a tax refund
• Disagree with a tax decision or penalty
• Estimate your penalty for late Self Assessment tax returns and payments

High Income Child Benefit Charge

• High Income Child Benefit Charge

Help and support

• HMRC email updates, videos and webinars for Self Assessment
• Get help with tax