- Your Self Assessment Tax Return
- Registering for Self Assessment
- What are Payments on Account?
- Do I Need to Fill in a Tax Return?
- Self Assessment Frequently Asked Questions
- De-registering from Self Assessment
- I’ve Lost My User ID and Password
- Have You Been Charged a Penalty?
- Self Assessment Support on YouTube
- Understand Your Self Assessment Tax Bill
- How Do I Register to Send My Return Online?
- How to Pay Your Self Assessment Tax Bill
- How to Tailor Your Tax Return
- Business Tax Online Changes
Self Assessment technical specifications (2019) for individual returns
Exclusion cases where a paper return must be submitted
Self Assessment registration and Class 2 for Agents
Agent advice on getting a customers registration for Class 2 National Insurance Contributions (NICs) right from the very start