SelfSubmit is designed to help you stay compliant with HMRC Making Tax Digital requirements. You remain responsible for ensuring the information you submit is accurate.

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Guides & updates

Practical MTD articles aligned with HMRC guidance. More posts on record-keeping, expenses, and product updates will be added here.

MTD guides

Getting started with MTD for Income Tax

HMRC requires digital records, quarterly updates during the tax year, and a final declaration. From April 2026, many self-employed people and landlords with qualifying income over £50,000 must follow MTD ITSA.

Important dates

Key MTD deadlines for 2026

Quarterly update deadlines depend on your accounting period. You must still meet Self Assessment payment dates (31 January and 31 July where applicable) and file your final declaration on time.

Quarterly updates

Your quarterly update checklist

Before each HMRC deadline: confirm your digital records are complete, summarise income and allowable expenses, and submit through MTD-compatible software. Quarterly updates are not your tax bill.