The rules as they actually stand for 2026, written for people who let property rather than for accountants. Every figure below was checked against gov.uk in September 2026.
Most of what is written about Making Tax Digital is about the scheme. The thing you need to know is narrower: whether it applies to you, and from when. That depends on two numbers and one date, and you can settle it in about thirty seconds.
Making Tax Digital for Income Tax arrives in three waves, each catching a lower band of income:
Two things about that word "qualifying" catch people out, and they are the two most common misreadings of the whole scheme.
Qualifying income is your rent plus any self-employment turnover, measured before you deduct a single expense. A landlord taking £55,000 in rent with £40,000 of mortgage interest, letting agent fees and repairs has qualifying income of £55,000, not £15,000. That landlord is mandated from April 2026 while making less profit than someone with a part-time job.
Why MTD uses turnover rather than profit, with a worked example.
HMRC does not look at what you earn in the year you start. It looks at the Self Assessment return from two years earlier. Your April 2026 position was therefore decided by your 2024/25 return, which you filed by 31 January 2026. Nothing you do to your income this year changes your April 2026 date.
Which tax year MTD actually uses, and what happens if you cross the threshold later.
Two things. You keep your records digitally rather than on paper or in a shoebox, and you send HMRC a summary four times a year instead of once.
The quarters end on 5 July, 5 October, 5 January and 5 April. Each update is due by the 7th of the following month, so the first one under the April 2026 regime is due by 7 August 2026. After the fourth quarter you make a final declaration, which does the job your Self Assessment return used to do.
A quarterly update is a summary of income and expenses by category. It is not a tax calculation and you do not pay anything on the strength of it. Payment dates are unchanged.
There is a lot of it about, so this is worth stating plainly: there are no late-submission penalty points for quarterly updates during 2026/27. HMRC has said this is a transitional year. From April 2027, a missed quarter earns one point, and four points triggers a £200 penalty.
That makes 2026/27 the cheap year to get your record-keeping straight, which is the opposite of the urgency most of the marketing implies.
MTD asks for two separate things and they are worth keeping apart in your head. You need digital records of your income and expenses, and you need to submit through recognised software. Most of the well-known MTD products handle the submission. The part that actually takes the time is getting the numbers out of a letting agent statement and into the right SA105 categories in the first place.
That is the gap the converter fills. It reads a letting agent statement or rental bank statement and maps every line to its SA105 box, including the one that trips up almost everybody: residential mortgage interest belongs in box 44 as a basic-rate tax reducer, not in your expenses. Treating it as an expense overstates your costs and understates your taxable profit.
These pages and tools are not MTD-compliant filing software, and nothing here submits anything to HMRC. They produce records and answer questions. For the submission itself, work from the recognised software list on gov.uk.
This is also not tax advice. GlideOps is not a firm of accountants and is not regulated to give it. Everything above applies published HMRC rules to a general case, and it cannot see your circumstances. If your situation is unusual, particularly around trusts, overseas property or mixed partnerships, take proper advice.