Making Tax Digital for Income Tax has been law for three months, and the internet is still populated with confidently-wrong advice about it. Some myths are wishful thinking — landlords hoping a threshold doesn’t apply to them. Some are outdated — repeating rules HMRC changed in the January 2026 soft-landing guidance. Some are genuine ambiguity in HMRC’s language.
This guide walks through ten myths we hear most often, with the actual HMRC rule for each. Everything checked against GOV.UK guidance current at 18 July 2026.
Not tax advice. For your own situation take advice — the difference between "myth" and "your specific case" can matter.
Myth 1: The £50k threshold is based on profit
Wrong. The threshold is gross income, not profit.
If your property portfolio grossed £52,000 in 2024/25 with £15,000 of allowable expenses (net profit £37,000), you are in the £50k tier for MTD from 6 April 2026. The expenses don’t reduce the threshold test.
Same rule applies at £30k (April 2027) and £20k (April 2028): all thresholds are gross income.
Why the confusion: Self Assessment reports profit. Many landlords think of themselves as having "£37k income" if that’s what their tax return shows. HMRC’s threshold test is applied before any deductions.
How to check: your total gross rent received in 2024/25 plus any self-employment turnover.
Myth 2: If my income is under £50k I don’t need to file anything
Half wrong. You don’t need to file MTD quarterly updates, but you still need to file Self Assessment as before.
Under-threshold landlords continue on Self Assessment: one return per year, due 31 January following the tax year. That is unchanged.
MTD only replaces Self Assessment for landlords who are mandated into it (or who volunteer). Everyone else carries on as before.
Myth 3: I need Xero (or QuickBooks, or Sage)
Wrong. You need HMRC-recognised MTD ITSA software. That list is 30+ products and growing.
The 2026 recognised list includes:
You do not need enterprise-grade accounting software. A landlord with a simple portfolio can use a specialised landlord product for £10–£20/month and be fully MTD-compliant.
Why the myth: MTD for VAT (2019) drove Xero adoption hard among small businesses. Xero markets aggressively. But MTD ITSA has broader recognition and lots of cheaper landlord-specific options.
Myth 4: I have to digitise every receipt
Nuance. You must keep digital records of income and expense transactions — the amount, date and category. You do not have to attach a photograph of every physical receipt to every transaction.
The digital records requirement is met by:
You keep the physical receipts as evidence for enquiries, as under Self Assessment. Digitising receipts is a good habit — makes enquiries easier and reduces the "where did that £42 go" panic — but is not a legal requirement of MTD.
Myth 5: I have to file quarterly updates by the 31st of the month after
Wrong. The deadline is the 7th of the second month after the quarter end.
For a standard tax year:
Each is one calendar month and two days after the quarter end, not a month later. "By the end of the following month" is wrong.
Why it matters: 7 August is a Friday in 2026. Missing it by three days (arriving Monday 10 August) is a late filing.
Myth 6: The penalty grace period isn’t real / has already ended / covers everything
All wrong. The soft landing is real, it applies to 2026/27, and it is narrower than most write-ups suggest.
What the soft landing actually says (per HMRC guidance):
What the soft landing does not cover:
Standard penalty regime resumes from 6 April 2027 (quarterly updates for 2027/28 onwards).
Myth 7: Joint ownership means we file together
Wrong. MTD ITSA treats each individual’s share as their own business. Joint owners of a property each report their share through their own software using their own HMRC login.
Default rule: spouses / civil partners are treated as 50/50 unless Form 17 is filed. Unmarried joint owners are treated as their beneficial shares per declaration of trust.
Practical: if a couple owns one property and files Form 17 electing 30/70, one spouse’s software reports 30% of gross rent and 30% of expenses each quarter; the other reports 70%. There is no "household return".
Full detail: see MTD for jointly-owned property.
Myth 8: I have to switch to accrual accounting
Wrong. HMRC extended the cash basis as the default for MTD ITSA. Most small landlords will file on the cash basis (income when received, expenses when paid) — the same treatment they use for Self Assessment.
You can elect for the accruals basis if it suits your business — the election is made in software at the start of the tax year. Some landlords with significant capex or prepaid insurance benefit from accruals; most small portfolios don’t.
Cash basis threshold: from 2024/25 the cash basis is the default for the vast majority of individual landlords. Accruals is the exception, not the rule.
Myth 9: MTD ends the January 31 deadline
Wrong. The final declaration is due 31 January following the tax year end — same as Self Assessment always was. MTD adds four quarterly updates before that; it does not push out the annual deadline.
Payment of tax is also due by 31 January, with payments on account in July and January as before. MTD does not change payment scheduling.
Myth 10: If I volunteer I can’t go back
Nuance. You can withdraw from voluntary MTD by notifying HMRC before the start of the next tax year. You cannot switch back to Self Assessment mid-year — once you commit to a tax year in MTD, you file quarterly for that year.
The distinction:
If you volunteer for 2026/27 and hate it, you can withdraw effective 6 April 2027 and return to Self Assessment for 2027/28, provided you are still under the mandatory threshold.
If your income has crossed the mandatory threshold in the year you were volunteering, you cannot withdraw — you are now mandated.
Bonus myth: MTD means real-time tax
Wrong. MTD quarterly updates are cumulative reports of income and expenses. HMRC does not calculate or bill tax quarterly. Tax is calculated at the year-end final declaration and paid on the normal Self Assessment cycle (31 January balance + July/January payments on account).
The quarterly updates give HMRC visibility into your business through the year. They do not create quarterly tax bills.
Sources
Allowable vs Capital Repair Decision Tree
The single line HMRC actually draws between an allowable repair and a capital improvement, with 24 worked examples for UK landlords.
- 24 real repair scenarios classified
- Repair-vs-capital decision tree (1-page A4)
- Replacement-of-domestic-items relief explained
- Self Assessment line mapping for SA105
Frequently asked questions
Is the MTD threshold based on profit or gross income?
Gross income. The most common MTD myth. A portfolio grossing £52,000 with £15,000 of expenses (net profit £37,000) is in the £50k MTD tier — the threshold is gross rents received, not taxable profit after deductions.
Do I need Xero to file MTD?
No. Any HMRC-recognised MTD ITSA software will do. That includes purpose-built landlord tools (Hammock, Landlord Studio Pro, Coconut) and general accounting apps (Xero, QuickBooks, Sage, FreeAgent). You do not need enterprise-grade software to file four quarterly updates.
Do I have to keep every receipt digitally?
You must keep digital records of income and expenses — the amount, date and category. You do not have to attach a photograph of every receipt to every transaction. Bank feeds, spreadsheets and manual entry all meet the "digital records" requirement provided the totals reach HMRC through MTD-compatible software.
Is the penalty grace period real?
Yes, but narrower than often reported. HMRC has confirmed no penalty points for late quarterly updates during 2026/27 for landlords mandated into MTD (income over £50,000). The published concession is "exclusively for taxpayers mandated to join MTD in April 2026" — voluntary joiners are not formally covered. There is also a small extra concession on late payment (30 days rather than 15 before the first penalty). Late final declaration (31 January) and late payment of tax are not covered by the soft landing at all.