MTD for Income Tax: What Landlords Above £50K Must Do Before April 2026
From 6 April 2026, every UK landlord with gross rental income above £50,000 moves from one annual return to five filings a year. Here is the threshold rule, the exact deadlines and a checklist for the next 11 months.
Most landlords we onboard at LOYALS find out about MTD for Income Tax the same way: a confusing letter from HMRC arrives in spring, the words "quarterly digital filing" appear, and the question becomes "does this actually apply to me?". The answer for around six in ten London landlords with multi-property portfolios is yes, and the start date is 6 April 2026. Less than a year away as I write this.
This post answers the questions that come up on the first call once a landlord realises they are caught: how the threshold works, what the five filings actually involve, what software you need, what the deadlines look like across a real tax year and what penalties HMRC will issue if you miss them. There is also a short checklist of things to do now, before the rules switch on.
What MTD for Income Tax actually is
Making Tax Digital for Income Tax Self Assessment, normally shortened to MTD ITSA or MTD for Income Tax, is the next phase of HMRC's long programme to move tax administration off paper and out of the once-a-year cycle. VAT-registered businesses already do this. From April 2026, sole traders and landlords above the threshold join in.
The mechanics are simple in principle. You keep your rental records digitally during the year, you submit a summary of income and expenses to HMRC every three months, and at the end of the tax year you finalise the position with a single end-of-period declaration that pulls in any other income (employment, savings, dividends, capital gains). The single annual Self Assessment return goes away for the rental and trading parts. The end-of-year declaration replaces it.
So one filing turns into five. Five turns into ten if you have both rental income and self-employment, because each income source is reported separately each quarter, then rolled up at year end.
The £50,000 threshold rule (and why it surprises landlords)
The threshold catches more landlords than the published guidance suggests, and the reason is the word gross. HMRC tests qualifying income before any expenses are deducted. So a portfolio bringing in £55,000 of rent with £20,000 of allowable expenses (interest, repairs, agent fees, insurance) still has gross qualifying income above £50,000. That landlord is in MTD ITSA, even though net profit is £35,000.
Two further details matter. First, if you also have self-employed trading income, the two streams add together for the threshold test. So a freelancer with £30,000 of consultancy and £25,000 of rent has qualifying income of £55,000 and is caught. Second, the test is based on the most recent finalised tax year (so for April 2026 entry, the test year is 2024/25). That means the maths to know whether you are in or out is settled by the return you filed in January 2026.
Below the £30,000 threshold, you stay in annual Self Assessment for now. Between £30,000 and £50,000, you join from April 2027. Below £30,000, no entry date has been set yet and that population is being kept under review.
Should I switch structure or stay an individual landlord?
This is the call the £50K-plus landlord population usually wants to make in the lead-up to April 2026. The decision is rarely just about MTD. Section 24 (the mortgage interest restriction that started in April 2017 and fully bedded in by 2020/21) already removed the ability to deduct mortgage interest as an expense for individual landlords, replacing it with a basic-rate tax credit. From April 2027, property income will get its own separate higher rates of 22%, 42% and 47% for England, Wales and Northern Ireland, which lifts the effective rate for higher-rate landlords by around 2 percentage points on the rental slice.
Limited company landlords avoid both of these. They pay Corporation Tax on rental profit (19% to 25% depending on profit), get full mortgage interest relief, file CT600 returns instead of Self Assessment, and sit entirely outside MTD ITSA. The trade-offs are extraction tax (dividends or salary) when you take cash out, mortgage portability (a remortgage to a Ltd Co structure crystallises CGT and SDLT) and the cost of running a company.
The five filings: what each one looks like
If you stay an individual landlord, here is what the year actually involves. Each quarterly submission is a summary of rental income and expenses for the quarter, broken down by property where you have multiple. Categories follow a fixed list (rent received, repairs, insurance, mortgage interest, agent fees, professional fees, utilities, finance costs and so on). The submission has to be cumulative, meaning each quarter restates the year-to-date totals rather than just the latest three months. Most software handles that automatically.
The four quarterly submissions cover these standard periods for the 2026/27 tax year:
- Quarter 1: 6 April to 5 July 2026, deadline 7 August 2026
- Quarter 2: 6 July to 5 October 2026, deadline 7 November 2026
- Quarter 3: 6 October 2026 to 5 January 2027, deadline 7 February 2027
- Quarter 4: 6 January to 5 April 2027, deadline 7 May 2027
- Final declaration: for the full 2026/27 year, deadline 31 January 2028
The final declaration is the key one. That is where adjustments get made (capital allowances, private use, accruals, finance cost restriction under Section 24), where any other untaxed income gets reported (employment, dividends, interest, capital gains), and where the actual tax liability is calculated. The four quarterly submissions during the year are running summaries, not final figures. So nothing the four quarters say is binding until the year-end declaration ties it all together.
Tax payments still follow the existing Self Assessment rhythm: balancing payment by 31 January following the year, and two payments on account by 31 January and 31 July if applicable. MTD does not change the payment dates. It only changes the reporting cycle.
Software requirements (and what we actually use for clients)
HMRC will only accept submissions through MTD-recognised software. Spreadsheets are still acceptable in principle, provided they connect to HMRC via approved bridging software, but in practice most landlords find that approach more painful than just using a proper bookkeeping app. The list of recognised software is long and growing. The four most-used products with our landlord client base are FreeAgent, Xero, QuickBooks Online and 123 Sheets.
FreeAgent is bundled free with NatWest, Royal Bank of Scotland and Mettle business banking, which makes it the most cost-effective option for small portfolios. Xero is the most powerful for portfolios above five properties and integrates well with most letting agents' export feeds. QuickBooks Online sits between the two on capability and cost. 123 Sheets is a low-cost option for landlords who already keep their records in Excel and want to bridge into MTD without changing workflow. Whichever route, the software must handle digital record keeping (no manual transposition between bank statement and submission), all four quarterly submissions and the year-end declaration.
Penalties: the new points-based system
HMRC moved to a points-based late submission penalty in April 2024 for VAT, and the same framework applies to MTD ITSA. You receive one penalty point per missed quarterly deadline. Hit the threshold (4 points for quarterly filers) and a £200 fixed penalty kicks in, plus another £200 for every further missed deadline until the slate clears. Points expire after 24 months of compliant filing.
Late payment of tax is a separate cost. Interest accrues from day one (currently 7.75% per the Bank of England base rate plus 2.5%), then a 3% penalty applies after 15 days late, another 3% after 30 days, and a daily 10%-per-annum charge from day 31. So missing a payment by a month adds roughly 6% in penalties on top of interest. The penalties stack independently of the late submission points.
What this means for you (and what to do now)
If your gross rent for 2024/25 was above £50,000, the practical question is not whether to comply with MTD but whether to comply as an individual landlord or move the portfolio into a limited company before April 2026. That decision needs proper modelling, because incorporation crystallises CGT on the unmortgaged equity in the properties at the moment of transfer, and triggers SDLT on the market value, unless you qualify for incorporation relief and stamp duty relief through a partnership structure (which has its own tests and conditions).
If you decide to stay individual, here is the LOYALS pre-April-2026 checklist:
- Confirm whether your 2024/25 gross rent crossed £50,000 (your Self Assessment return is the source of truth)
- Pick MTD-recognised software and set it up with bank feeds and property categories
- Enrol for MTD ITSA via your HMRC business tax account once enrolment opens for 2026/27 entrants
- Authorise your accountant as MTD ITSA agent (if you use one)
- Run a parallel quarter on real data before April 2026 to spot category gaps
- Diary the four 2026/27 quarter end dates: 5 July 2026, 5 October 2026, 5 January 2027, 5 April 2027
- Confirm the deadlines: 7 August 2026, 7 November 2026, 7 February 2027, 7 May 2027
- Block out time for the final declaration deadline of 31 January 2028
The most common failure mode we see at this point in the cycle is landlords leaving software setup until February or March 2026, then realising the bank feed needs three months of clean data before the first submission to make sense. Set the software up by autumn 2026 at the latest. November 2025 is better.
How LOYALS handles MTD ITSA for landlord clients
For £150 per quarter (£600 per year), we run the full cycle. That includes setting up FreeAgent, Xero or QuickBooks for your portfolio, adding bank feeds for every account, classifying transactions in real time during the quarter, filing the four quarterly submissions before each deadline, preparing and filing the final declaration, calculating Section 24 finance cost restriction correctly, and applying any reliefs (Replacement of Domestic Items, Wear and Tear is gone but capital allowances on common-area items still apply, Rent-a-Room if you have a lodger). We also run a 12-month tax projection at the end of each quarter so you can see the bill coming and plan for it.
If you are already running on FreeAgent, Xero or QuickBooks, we can plug into your existing system within 48 hours of engagement. If you are starting from scratch, the typical setup takes around two weeks: bank account permissions, property records, opening balances, historic categorisation. After that the maintenance is light, and the quarterly cycle becomes routine. Our extended hours (Monday to Saturday, 10am to 7pm) cover the working pattern of most landlords we serve, who tend to call between site visits or after evening property viewings.
Frequently asked questions
It depends on the gross rent, not the property count. If your gross rental income for the 2024/25 tax year was above £50,000, you fall into MTD for Income Tax from 6 April 2026, even with a single high-yielding property. If gross rent was below £30,000 you stay in annual Self Assessment for now. Between £30,000 and £50,000 you join the MTD population from April 2027.
It is gross rent received, before any expenses. This catches a lot of landlords by surprise. A property bringing in £55,000 of rent with £20,000 of allowable expenses still has gross income above the threshold and is therefore inside MTD ITSA, regardless of the £35,000 net profit figure.
The two income types are added together for the threshold test. So a sole trader earning £30,000 from trade and £25,000 from rent has gross qualifying income of £55,000 and is caught by MTD from April 2026. Quarterly filings cover both income streams separately, but the totals roll up into one MTD position.
You need HMRC-recognised MTD ITSA software. The most widely used options for landlords are FreeAgent, Xero, QuickBooks Online and 123 Sheets. The software must be capable of digital record keeping, four quarterly submissions and the final declaration. Spreadsheets are still acceptable if linked to HMRC via approved bridging software, though most landlords find a proper bookkeeping app simpler.
For the 2026/27 tax year, the standard quarterly periods end on 5 July, 5 October, 5 January and 5 April. Each return is due by the 7th of the following month, so 7 August, 7 November, 7 February and 7 May. The final declaration replacing your annual Self Assessment return is due by 31 January 2028 for the 2026/27 year.
HMRC operates a points-based late submission system. You receive one point per missed deadline, up to a threshold (4 points for quarterly filers). Cross the threshold and a £200 fixed penalty applies, plus another £200 for every further missed deadline until the slate clears. Late payment of tax also attracts interest from day one and an escalating percentage charge after 15, 30 and 31+ days.
Yes. MTD for Income Tax applies to individuals filing Self Assessment, not to companies. Limited company landlords file Corporation Tax accounts and CT600 returns, which sit outside MTD ITSA entirely. Whether incorporating is right depends on your wider position, mortgage portability and the new April 2027 property rates, so model both before deciding.
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LOYALS Chartered Accountants
Written by chartered accountants speaking from real client engagements. LOYALS specialises in landlord, sole trader, hospitality and construction tax across London. Open Mon to Sat 10am to 7pm. Speak to your account manager Kris Nick, Senior Chartered Accountant, on the free 15-minute call. Quotes issued in writing within 24 hours including any current period discounts.
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