DIY Tax vs untied
Both are guided tax filer tools for Making Tax Digital for Income Tax.
DIY Tax is the cheaper starting point at £0 (VAT included) versus from £129.99/yr for untied — but the cheapest plan only wins if it covers the income types you actually have.
| DIY Tax | untied | |
|---|---|---|
| True annual cost from | £0 | from £129.99/yr |
| Self-employment | Yes | Yes |
| Property / rent | Yes | Yes |
| Keeps your spreadsheet | No | No |
| Accountant access | No | No |
| Type | guided tax filer | guided tax filer |
| HMRC status | Recognised | Recognised |
| Price verified | 2026-07-06 | 2026-07-06 |
DIY Tax
A flexible DIY filer covering unlimited self-employment businesses, UK and foreign properties — key figures in yourself, bridge from a spreadsheet or connect your bank. Files right through to the final declaration.
- People with several income sources to file cheaply
- Those who want a choice of record-keeping styles
untied
The UK's original MTD-recognised personal tax app: a mobile-first way for the self-employed and landlords to tag income and file. The Pro plan adds full Making Tax Digital for Income Tax.
- People who want a mobile-first personal tax app
- Self-employed and landlords who want guided, app-led filing
Not sure either is right? Use the finder to get a recommendation ranked by what it will actually cost you.
Prices are each tool's cheapest plan, VAT included, last verified 6 July 2026 (catalogue reconciled 6 July 2026). Links are affiliate links and never affect ranking. Not affiliated with HMRC; not tax advice.