Self Assessment tax return accountant

Self Assessment tax guides

Guides for UK individuals, directors, high earners, investors, and first-time Self Assessment filers.

Self Assessment tax return checklist UK

Self Assessment Tax Return Checklist UK: Records to Prepare Before Filing

Use this checklist to prepare your Self Assessment records clearly before an accountant reviews and files your UK tax return.

Updated 2026-07-19

31 January Self Assessment deadline

Understand the 31 January Self Assessment deadline and how to avoid rushed filing, payment surprises, and HMRC penalties.

Updated 2026-07-19

tax return for high earners UK

High earners often need a more careful Self Assessment review because income, benefits, reliefs, and payments can interact.

Updated 2026-07-19

Self Assessment expenses UK

Review common Self Assessment expenses and the evidence an accountant usually needs before including costs in a tax return.

Updated 2026-07-19

late tax return penalties HMRC

If your tax return is late, the priority is to understand the penalty position, file accurately, and avoid rushed HMRC replies.

Updated 2026-07-19