Making Tax Digital for Income Tax Self Assessment went live for property income on 6 April 2026. If you are a sole-trader landlord with combined gross property and self-employment income above £50,000, you are already inside the MTD regime. Quarterly digital submissions to HMRC via approved software are no longer optional, and HMRC's points-based penalty system applies from the first missed deadline.
This guide ranks the MTD software that is actually in production for UK landlords in 2026, by portfolio size and feature fit. It also covers the next two threshold steps (£30,000 from 6 April 2027 and £20,000 from 6 April 2028), so landlords currently under the line can prepare instead of being caught flat-footed.
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Where You Stand on the MTD Timeline
The mandate phases in by gross income, not by tax band:
| Effective date | Gross income threshold | Who is now in scope |
|---|---|---|
| 6 April 2026 (already live) | Over £50,000 | Sole-trader landlords and self-employed individuals above £50k combined |
| 6 April 2027 | Over £30,000 | The next wave: most mid-sized BTL and HMO portfolio landlords |
| 6 April 2028 | Over £20,000 | Smaller landlords with one or two properties at typical rents |
| Not yet confirmed | Partnerships | Deferred, no date set as at May 2026 |
Threshold is on gross income (rent before expenses), not net rental profit. Property income and self-employment income aggregate for the same person. Use HMRC's sign-up checker if you are unsure whether you are caught yet.
What "MTD-Compliant" Actually Means
The phrase "MTD-compliant" gets used loosely in software marketing. The actual HMRC requirement has three components:
- Digital record-keeping. Income and expense records must be stored in software, not paper or unlinked spreadsheets. Each transaction needs to flow from its source (bank feed, invoice, receipt) into the record without manual re-entry breaking the digital chain.
- Quarterly digital submission via the HMRC API. Five submissions per tax year for most landlords: four quarterly updates plus one end-of-period statement. The software must connect directly to HMRC's MTD-for-ITSA API.
- Final declaration via approved software. The annual final declaration (which replaces the self-assessment return for MTD landlords) must also flow through approved software.
The authoritative list of approved providers is HMRC's recognised software for MTD for Income Tax page. Any product not on that list cannot file your MTD submissions, regardless of how good the software is otherwise. Check the list before you buy.
Top Picks by Landlord Segment
The right choice depends on portfolio size, whether you also have non-property self-employment income, and whether you want property management features built in or just clean accounting. Our segment-by-segment recommendations follow.
Single-property and very small portfolio landlords (1-3 properties)
Hammock is the strongest property-specific pick at this end of the market. Built around per-property profit tracking from day one, with full MTD-for-ITSA submission support and a usable mobile app for receipt capture. Pricing typically starts around £10-£15 per month for a single property, scaling modestly with portfolio size.
Untied works well for landlords who also have other sole-trader income (consulting, freelance) and want one tool for the whole self-assessment picture. Strong MTD-for-ITSA support, lighter on property-specific features than Hammock.
FreeAgent is the natural choice if you bank with NatWest, Royal Bank of Scotland, Mettle, or Ulster (UK), since the account comes free with those business banking products. Genuine MTD-for-ITSA support, less property-specific than Hammock but very capable for general use.
Mid-sized BTL and HMO portfolios (4-10 properties)
Hammock scales well into this range, with portfolio-level dashboards and the ability to assign income and expenses to specific properties cleanly. Pricing in the £20-£40 per month range for portfolios at this size.
Landlord Vision is the right pick if you want property management features (tenancy tracking, deposit handling, maintenance log, document storage) bundled with MTD-compliant accounting. Heavier than Hammock on the operational side, lighter on bookkeeping niceties. £25-£50 per month range.
Xero with a property add-on (such as Re-Leased or PropertySuite) works for landlords who want a mainstream accounting platform and are willing to layer property tracking on top. Best when the landlord also has non-property business activities.
Large portfolios and mixed property businesses (10+ properties or mixed BTL/HMO/commercial)
Xero or QuickBooks Online become the practical default at this scale, both for MTD compliance and for the deeper accounting features (multi-bank reconciliation, advanced reporting, accountant collaboration). Property-specific add-ons or a separate property management tool (Arthur Online, Re-Leased) handle the operational side.
Sage Business Cloud Accounting is a credible alternative for landlords already in the Sage ecosystem, with full MTD-for-ITSA support on the appropriate tier.
At this scale, the bigger decision is usually whether to consolidate the portfolio into a limited company structure (which removes the MTD-for-ITSA requirement and replaces it with corporation tax obligations). The BTL limited company guide covers that decision in full.
Specialist MTD-for-ITSA platforms (any portfolio size)
Apari was built specifically for MTD-for-ITSA and supports the full quarterly + end-of-period + final declaration flow. Less general-purpose than Hammock or FreeAgent, but very focused on the MTD obligation itself.
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Bridging Software for Spreadsheet Users
If you have used Excel for years and do not want to migrate to dedicated accounting software, bridging software is the legitimate route. Bridging tools take data from a spreadsheet, validate it for MTD format, and submit it to HMRC via the API.
- 123 Sheets is a low-cost dedicated bridging tool with full MTD-for-ITSA support. Typically £20-£50 per year.
- BTCSoftware MTD bridge for landlords who already use BTC products for self-assessment.
- Built-in bridges in Hammock and Untied for users who want to keep some workflow in spreadsheets while having the accounting tool own the submission.
The important caveat: under MTD, the records themselves must be "digitally linked" from source to submission. A spreadsheet you retype into manually each quarter is not compliant. Bridging works when the spreadsheet is populated by digitally linked feeds (bank export, letting agent statement export) and the bridge software takes that file unchanged.
Migration Playbook If You Haven't Started Yet
For landlords above the £50k threshold who are still on paper or unlinked spreadsheets in May 2026, the situation is urgent but recoverable. The realistic playbook:
- Week 1: Pick a tool. Use HMRC's recognised list to confirm it covers your full filing flow (quarterly + EOPS + final declaration), then sign up for a free trial.
- Week 2-3: Import the current tax year. Run bank feeds for the property account, categorise transactions, set up per-property tagging.
- Week 4: Configure Section 24 handling. Confirm the tool treats mortgage interest as a finance cost (subject to the 20% tax credit) rather than a standard deduction.
- Before the next quarterly deadline: Run a dry submission. If the tool offers a sandbox or test mode, use it. If not, work with an accountant to review the first submission before it goes live.
If you are already past your first quarterly deadline and have missed it, see our separate guide on MTD penalties for landlords. Catching up on a missed deadline is faster than waiting for HMRC to flag it.
Common MTD Mistakes Landlords Are Making in 2026
- Treating April 2026 as a future event. The mandate is already live for landlords above £50k. We still see this in client conversations every week.
- Buying the cheapest plan without checking it covers EOPS and final declaration. Some entry-level tiers stop at quarterly submissions, leaving the year-end declaration unaddressed.
- Manual re-entry from bank statements. This breaks the digital link requirement and exposes the landlord to compliance challenge.
- Waiting until the first quarterly deadline to test the submission flow. If something fails (bank feed timing, software bug, HMRC outage), there is no buffer.
- Assuming spreadsheets are still fine. Pure spreadsheets without bridging software are not compliant.
- Forgetting that the threshold is gross, not net. A landlord with £55,000 of rent and £20,000 of mortgage interest is still in scope, even though net profit is much lower.
When Professional Support Earns Its Fee
Software handles the mechanics. It does not replace tax planning judgment. The situations where a property accountant typically adds material value alongside the software:
- Mixed portfolios (BTL + HMO + commercial + holiday let) where each property type has different MTD treatment
- Landlords sitting at the personal-vs-limited-company decision point, where the MTD-for-ITSA obligation can be removed entirely by incorporating
- Section 24 modelling, where the software calculates the tax credit but does not advise on whether the structure is optimal
- Quarterly submission review before filing, particularly in the first year of MTD
- End-of-period statement and final declaration review, where mistakes compound year-on-year
Related reading: Free vs paid MTD software comparison, How to register for MTD as a landlord, MTD quarterly deadlines 2026-27, MTD penalties, MTD threshold and exemptions, and Section 24 complete guide.