Personal tax

Self Assessment: detailed information

• From: HM Revenue & Customs, Closed organisation: Office of Tax Simplification, HM Treasury, Department for Work and Pensions, HM Courts & Tribunals Service, and Student Loans Company

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Get started

• Check if you need to send a Self Assessment tax return
• Self Assessment tax returns

Log in and file a tax return

• File your Self Assessment tax return online
• Use software to help complete your Self Assessment tax return

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

Record keeping

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

Forms and helpsheets

• Self Assessment tax return helpsheets
• Tell HMRC about a student or postgraduate loan in your tax return
• Self Assessment forms and helpsheets for self-employment and partnerships
• Self Assessment forms and helpsheets: employment
• Self Assessment forms and helpsheets for UK property
• Self Assessment forms and helpsheets for Capital Gains Tax
• Self Assessment forms and helpsheets: foreign
• Self Assessment forms and helpsheets for trusts and estates
• Residence and remittance basis Self Assessment forms and helpsheets
• Self Assessment forms and helpsheets for Lloyd's underwriters

Refunds, appeals and penalties

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

Help and support

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