TaxHeaven vs untied
Both are guided tax filer tools for Making Tax Digital for Income Tax.
TaxHeaven 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.
| TaxHeaven | 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 | 2026-08-10 | 2026-08-10 |
TaxHeaven
An automation-first tax app for freelancers and landlords with a genuinely free MTD plan — bank import, AI-assisted categorisation and pre-filled returns, covering self-employment, UK and foreign property, and CIS.
- Freelancers who want automation for £0
- CIS subcontractors and landlords with foreign property
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 10 August 2026 (catalogue reconciled 10 August 2026). Links are affiliate links and never affect ranking. Not affiliated with HMRC; not tax advice.