Making Tax Digital for Income Tax Self Assessment (MTD ITSA) is the biggest change to UK landlord tax administration since Self Assessment itself was introduced in 1996. From 6 April 2026, every UK landlord whose combined self-employment plus rental income exceeds £50,000 a year must switch from a single annual return to four quarterly digital submissions plus an annual final declaration, all through HMRC-compatible software.
From April 2027 the threshold drops to £30,000, catching the vast majority of UK landlords. From April 2028 it drops again to £20,000.
This is the complete 2026 guide. It covers: who’s in, who’s out, what exactly you have to submit, which software qualifies, quarterly deadlines, the new points-based penalty regime, and how to get ready without drowning in software invoices.
Legal disclaimer: MTD ITSA is administered by HMRC and the precise thresholds, software list and deadlines are subject to Statutory Instrument updates. Always confirm current rules on GOV.UK before relying on this article for a specific filing decision.
Who must use MTD ITSA in 2026?
The £50,000 threshold (from 6 April 2026)
You must join MTD ITSA for the 2026–27 tax year if your qualifying income in the 2024–25 tax year was more than £50,000.
Qualifying income = gross (before deductions) income from:
This is gross rent + self-employed turnover combined, not profit. So a landlord with £60,000 gross rental income but £10,000 net profit after mortgage interest and expenses is in scope.
The £30,000 threshold (from 6 April 2027)
From the 2027–28 tax year, landlords with qualifying income above £30,000 in 2025–26 must join. This catches a majority of active UK landlords.
The £20,000 threshold (from 6 April 2028)
From 2028–29, the threshold drops further to £20,000. At this level MTD effectively covers anyone letting more than one average UK flat.
Who is OUT of MTD ITSA
Joining voluntarily
You can join MTD ITSA voluntarily before you’re mandated. Most landlords should not unless they already use MTD-compatible bookkeeping — the admin overhead is real.
What you actually have to submit
Four quarterly updates
For each property business (UK property, FHL, overseas property count as separate businesses) you submit 4 quarterly updates per tax year, each containing:
Crucially: updates are cumulative and approximate. You don’t need to finalise each quarter — you can correct in later quarters or the final declaration. The financial cut-off for accuracy is the annual final declaration.
Categories broadly follow the existing SA105 (UK property supplementary page):
Default quarter-end dates
| Quarter | Period | Submission deadline |
|---|---|---|
| Q1 | 6 April – 5 July | 7 August |
| Q2 | 6 July – 5 October | 7 November |
| Q3 | 6 October – 5 January | 7 February |
| Q4 | 6 January – 5 April | 7 May |
Calendar quarter election
You can elect to use calendar quarters (1 April – 30 June, etc.) — often cleaner for cash-basis bookkeeping. The election is per-business and made through your software.
End of Period Statement (EOPS) + Final Declaration
After the 4 quarterly updates for a tax year, you submit:
The 31 January deadline remains the single biggest date in your landlord calendar. It’s the Final Declaration and the payment deadline.
What software do you need?
The MTD-compatible requirement
HMRC requires the quarterly update to be submitted via its API from approved software. You cannot log in to the HMRC website and type numbers in; it must go through software. GOV.UK maintains a list of compatible products — always check that list before buying.
Four software categories
1. Full MTD bookkeeping suites
Examples: FreeAgent (free with NatWest / Mettle business accounts), Xero (from £15/month), QuickBooks (from £12/month), Sage (from £15/month).
Best for landlords who also run a self-employment business.
2. Specialist UK landlord software
Examples: Hammock (£9–29/month), Landlord Studio (£15–50/month), Rentila (free tier).
Best for landlord-only tax affairs. Typically includes rent-ledger + expense-category in one place. Built for MTD from the ground up.
3. Spreadsheet + bridging software
Keep your spreadsheets but submit via HMRC-approved bridging software (e.g., VitalTax, 123 Sheets, Absolute Excel). From £40–90/year.
Best for landlords who are already comfortable with Excel and don’t want a full bookkeeping overhaul.
4. Accountant submission
Your accountant submits on your behalf through their practice software. You supply records via CSV or shared drive. Typical accountant fee for MTD-ready landlord clients in 2026: £500–£1,200/year (up from £200–£500 for annual SA only).
How LetCompliance fits
LetCompliance’s Finance module captures rent, expenses and mortgage interest per property with HMRC-aligned categorisation. Export CSV quarterly, your accountant imports into bridging software (or their practice software) and submits to HMRC. This is the lowest-admin path for portfolio landlords: compliance + tax records in one dashboard, accountant handles the HMRC submission.
The new points-based penalty regime
Late quarterly submissions — the points system
Each late quarterly update earns 1 penalty point. Points accumulate across submissions.
Points reset (go back to zero) after 24 months of all-on-time submissions. Once you’re at 4 points you have to earn your way out.
Late final declaration
Traditional SA-style penalties persist for the final declaration:
Late payment
The new hybrid penalty for late payment:
Interest on late payment applies on top, currently around 7.75% (HMRC late-payment rate).
Reasonable excuse
You can appeal a penalty if you have a reasonable excuse (serious illness, bereavement, IT system failure beyond your control, HMRC error). Software failure due to your own non-payment of subscription is not a reasonable excuse.
How to get ready: a 6-step plan
Step 1: Work out if you’re in
Pull your 2024–25 Self Assessment. Add your gross rental income + self-employment turnover. If > £50,000 you’re mandated from 6 April 2026.
Step 2: Separate your banking
Open a dedicated account for rental income and expenses. This one change saves hours of reconciliation. Free options: Starling Business, Tide, Mettle (with FreeAgent bundled), Monzo Business.
Step 3: Choose your software route now
Don’t wait until April. Trial two options during 2025–26 using historical data so you know the workflow before it’s mandatory. Factor in:
Step 4: Adopt HMRC expense categories
Retag existing records to HMRC Property Income Manual categories:
Step 5: Run a dry quarter
For Q1 2026–27 (the tax year before you’re mandated if you’re borderline), simulate the full quarterly workflow with your chosen software. Check your accountant is MTD-ready. Fix gaps now, not in July 2026.
Step 6: Confirm your compliance paper trail
Since you’re now touching every rental transaction quarterly, use the moment to audit compliance deadlines too: Gas Safety, EICR, EPC, deposit protection dates. LetCompliance unifies both in one dashboard — compliance calendar + finance ledger — because the two data streams share the same source (per-property transaction history).
Common myths and pitfalls
"I can still file one annual return if I prefer."
No. Once you’re mandated, annual-only SA100 is not available. You must submit 4 quarterly updates + EOPS + Final Declaration.
"Ltd company landlords are in scope."
No. MTD ITSA applies to income tax self-assessments. Ltd companies file Corporation Tax returns. MTD for CT is a separate regime for later.
"I can keep using a paper ledger."
You can keep paper for personal reference, but the digital records requirement means every transaction must exist in software at some point, and the submission itself must come via API from MTD-compatible software. Bridging from a spreadsheet is allowed; bridging from a photo of paper is not.
"HMRC will email me when it’s time."
HMRC is writing to affected landlords based on prior Self Assessments, but do not wait for a letter. If you’re above threshold on 2024–25 figures, you’re in scope regardless of whether the letter arrived.
"I can submit a quarter late and just pay a £100 penalty."
No — the new regime is points-based. Occasional lates accumulate points; hitting 4 points triggers £200 fines on every subsequent late submission. Being consistently late costs far more than the old regime.
FAQs
Does MTD ITSA apply in Scotland, Wales and Northern Ireland?
Yes. MTD ITSA is a UK-wide HMRC regime. It applies regardless of whether your rental property is in England, Wales, Scotland or Northern Ireland. (Devolved taxes like Land and Buildings Transaction Tax or Land Transaction Tax are separate.)
What if my income drops below the threshold mid-year?
Once you’re in MTD ITSA, you stay in — you can’t drop out partway through a tax year. You can request to leave for the next tax year if your qualifying income is below threshold for the base year.
Do I have to store digital copies of receipts?
Not strictly required by MTD ITSA, but strongly recommended. HMRC investigations look at receipt-level records, not just summaries. Digital receipts attached to the transaction in software are the gold standard.
What’s the cheapest way to comply?
If you have 1–2 properties and are already on NatWest/Mettle banking: FreeAgent is free. Otherwise: Rentila free tier or spreadsheet + VitalTax bridging (£40/year). Everything above £10/month is overkill for single-property landlords.
Can I switch software mid-year?
Yes, but migrate all historical data for the tax year to the new software before switching. HMRC expects a complete digital record, not fragments across two systems.
Related reading
Start your 7-day LetCompliance trial to capture every rent payment, expense and mortgage statement in HMRC-aligned categories, ready for quarterly MTD ITSA export.
Frequently asked questions
Do all UK landlords have to use MTD ITSA in 2026?
No, not yet. MTD ITSA applies from 6 April 2026 to self-employed individuals and landlords with combined qualifying income over £50,000 in the 2024–25 tax year. From April 2027 the threshold drops to £30,000, and from April 2028 to £20,000. Qualifying income is gross rental income (plus any self-employment), not profit. Landlords below threshold can continue filing an annual Self Assessment, but HMRC encourages voluntary sign-up.
What do I have to submit quarterly under MTD ITSA?
Four quarterly updates per tax year with totals of income and expenses for the property business, submitted via MTD-compatible software within 1 month of the quarter end. Then an End of Period Statement (EOPS) per business and a Final Declaration by 31 January after the tax year. Quarter ends default to 5 July, 5 October, 5 January, 5 April (calendar quarters election also available).
What software do I need for MTD ITSA as a landlord?
You need HMRC-recognised MTD-compatible software that can submit digital quarterly updates through HMRC’s API. Options range from specialist landlord software (Hammock, Landlord Studio, LetCompliance CSV export paired with an accountant’s bridging software) to general bookkeeping (FreeAgent, Xero, QuickBooks). Spreadsheets are permitted only via HMRC-approved bridging software.
What’s the penalty for late MTD quarterly submissions?
Under the new points-based MTD penalty regime: each late quarterly submission = 1 penalty point; 4 points triggers a £200 fine; further lates = £200 each. Points expire after 24 months of on-time filing. Late payment penalties are separate: 2% at day 16, another 2% at day 31, then a daily rate. Keep quarterly deadlines in your calendar and automate where possible.