MTD for Landlords: Month-by-Month Preparation Timeline for 2026

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) is the biggest change to landlord tax reporting in decades. From 6 April 2026, landlords and sole traders with gross income over £50,000 must keep digital records and submit quarterly updates to HMRC using MTD-compatible software.

If that sounds overwhelming, it needn't be. This timeline breaks the transition into manageable monthly steps so you arrive at the April 2026 go-live date fully prepared — and stay on track throughout the year.

What should landlords do in January-February 2026?

January 2026: Review and assess

• Calculate your gross property income for the 2024/25 tax year. If it exceeds £50,000, you'll be mandated from April 2026. Check your Self Assessment return or ask your accountant.
• Audit your current record-keeping. Are you using spreadsheets, shoeboxes of receipts, or an accounting tool? MTD requires digital records from day one of the new tax year.
• Review your property portfolio data. Ensure you have accurate records for each property: address, rental income, mortgage details, and associated expenses.
• File your 2024/25 Self Assessment by 31 January 2026 (the last year under the traditional system for most mandated landlords).

February 2026: Choose your software

• Research MTD-compatible software. HMRC publishes a list of compatible software providers. Look for software that handles both property management and MTD submissions to avoid duplicate data entry.
• Sign up and explore. Most providers offer free trials. Test the interface, check it handles multiple properties, and verify it supports the quarterly submission format HMRC requires.
• Talk to your accountant. If you use an accountant, confirm they're set up for MTD and discuss whether they'll handle submissions or you'll do it yourself using software they recommend.

What should landlords do in March 2026?

March 2026: Set up and migrate

• Set up your chosen software. Add all your properties, configure income categories, and set up expense tracking. Import any existing data from spreadsheets or previous accounting tools.
• Authorise your software with HMRC. You'll need to grant your MTD software access to your HMRC account. This is done through the Government Gateway and takes a few minutes.
• Create a digital record-keeping process. Decide how you'll capture receipts (phone photo, email forwarding, manual entry) and set up a weekly routine so you don't fall behind.
• Set up your bank feed if your software supports it. Automatic bank transaction imports dramatically reduce manual entry and errors.

What happens in April 2026 when MTD goes live?

April 2026: Go-live

The 2026/27 tax year begins on 6 April 2026. From this date:

• All income and expenses must be recorded digitally. Paper records alone are no longer sufficient — you must maintain digital records that can be submitted to HMRC.
• Start tracking Quarter 1 (6 April to 5 July 2026). Record all rental income received and expenses incurred during this period.
• Categorise transactions promptly. Don't let a backlog build up. The easiest approach is to review and categorise transactions weekly.

What are the quarterly submission deadlines for 2026/27?

MTD requires four quarterly updates plus a final End of Period Statement (EOPS) and a Final Declaration each tax year. Here are the key dates:

Each quarterly update is a summary of income and expenses for that period. It doesn't calculate your tax liability — that comes with the Final Declaration. See HMRC's MTD for ITSA guidance for the latest deadlines.

What should landlords do from May to December 2026?

May-July 2026: First quarter rhythm

• Continue recording income and expenses weekly. Build the habit now and quarterly submissions become trivial.
• Review Q1 data in late July. Check all transactions are categorised correctly before submission.
• Submit Q1 update by 5 August 2026. Your software will generate the submission — review it and send it to HMRC.

August-October 2026: Second quarter

• Track Q2 income and expenses (6 July to 5 October).
• Review mid-year position. Are your expenses and income in line with expectations? This is a good time to check you're claiming all allowable deductions.
• Submit Q2 update by 5 November 2026.

November 2026 - January 2027: Third quarter and year-end planning

• Track Q3 income and expenses (6 October to 5 January).
• Plan year-end tax position. With three quarters of data, you can estimate your annual tax liability and plan any capital expenditure or pension contributions.
• Submit Q3 update by 5 February 2027.

What mistakes should landlords avoid with MTD?

Based on HMRC's pilot programme and early adoption data, here are the most common pitfalls:

• Leaving setup until April. Software authorisation with HMRC can take days to process. Don't leave it to the last minute.
• Mixing personal and rental finances. Use a dedicated bank account for rental income and expenses. It makes digital record-keeping dramatically easier.
• Forgetting to record cash payments. If tenants pay rent in cash or you pay tradespeople in cash, these still need to be recorded digitally.
• Not claiming all allowable expenses. Common missed deductions include: travel to properties, home office costs, phone calls to tenants, letting agent fees, and professional subscriptions.
• Submitting without reviewing. Quarterly updates aren't binding, but errors create work later. Review each submission before sending.
• Ignoring the Final Declaration deadline. The Final Declaration (which replaces your Self Assessment return) is still due by 31 January following the end of the tax year. Missing it incurs the same penalties as a late Self Assessment.