Best MTD Software for Landlords in 2026: What to Look For
How landlords should choose MTD software in 2026 — handling UK and foreign property, joint ownership, finance-cost relief, multiple properties, and filing quarterly updates and the final declaration to HMRC.
The short answer
The best MTD software for landlords handles a UK property business (all your UK lettings combined), foreign property separately, joint-ownership splits and finance-cost relief, is on HMRC's compatible list, and files both quarterly updates and the final declaration. Choose one that matches how you keep records and lets you track each property while filing the combined picture.
Landlords have specific needs that generic tools don't always meet. Here's what to look for when choosing MTD software as a property owner in 2026.
Property is treated as its own business
For MTD, all your UK properties combine into one UK property business, and overseas lettings form a separate foreign property business. Your software should reflect this — one combined UK submission, foreign kept apart — not force you to file per property.
Features landlords actually need
| Feature | Why it matters |
|---|---|
| Combined UK property business | One set of quarterly updates for the portfolio |
| Separate foreign property | Overseas lettings are a distinct business |
| Per-property tracking | See each property's profit behind the combined total |
| Finance-cost relief | Mortgage interest gets a 20% credit, not a deduction |
| Joint-ownership shares | Report only your share of jointly owned property |
| Final declaration filing | Not just quarterly updates |
The mortgage interest question
This trips up generic software. Under Section 24, mortgage interest isn't deducted as an expense — you get a 20% tax credit applied at the final declaration. Make sure your software records finance costs and handles the relief correctly, rather than treating interest as an ordinary expense.
Multiple properties and joint ownership
- Multiple properties: you want to record each property's rent and costs separately, then file the combined UK total — see our guide to MTD with multiple properties.
- Joint ownership: the software should let you enter your ownership share so figures reflect only your portion — see jointly owned property and MTD.
Don't forget the basics
- On HMRC's compatible list.
- A clear review step before submitting.
- Sensible data security — your income and personal details are sensitive.
- Never asks for your Government Gateway password.
Where ThisQuarter fits
ThisQuarter models UK and foreign property as their own income sources, lets you keep the detail behind each property, applies annual adjustments and finance-cost relief at year-end, and files quarterly updates and the final declaration to HMRC — all from a secure, encrypted desktop app, with the first two quarterly cycles free on the Solo plan.
Key takeaways
- UK properties = one property business; foreign property is separate.
- Choose software that tracks per property but files combined.
- Ensure correct handling of finance-cost relief and joint-ownership shares.
- Confirm HMRC compatibility, a review step, and final-declaration filing.
This article is general information, not tax advice or a product endorsement. Check compatible software at gov.uk.
Frequently asked questions
What should landlords look for in MTD software?
Support for a combined UK property business and separate foreign property, the ability to record per property while filing combined totals, handling of finance-cost (mortgage interest) relief and joint-ownership splits, HMRC compatibility, and filing of both quarterly updates and the final declaration.
Do I need different software for multiple properties?
No. All your UK properties form one property business for MTD, so you file one set of quarterly updates covering the whole UK portfolio. Good software lets you track each property separately behind that combined submission.
Can the software handle my mortgage interest correctly?
It should. Mortgage interest isn't a normal deduction — landlords get a 20% finance-cost tax credit applied at the final declaration. Look for software that records finance costs and applies the relief correctly at year-end.
What about a property I own jointly?
You report only your share. Choose software that lets you enter your ownership proportion so the combined figures reflect your share of a jointly owned property.
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