MTD Compliance Checklist: 30-Day Countdown to April 2026

If you're reading this and it's already March 2026, let's skip the sugar-coating: you're behind schedule. Making Tax Digital for Income Tax becomes mandatory from April 2026 for landlords and sole traders with qualifying income above £50,000, and the clock is ticking. But here's the good news — 30 days is genuinely enough time to get compliant, provided you act decisively and follow a structured plan.

The biggest mistake landlords make isn't leaving it late — it's panicking and doing nothing at all. HMRC penalties for non-compliance start from the very first quarterly update you miss, so the cost of inaction is real and measurable. Whether you have a large portfolio or a single buy-to-let, the digital record-keeping requirements apply equally.

This week-by-week checklist breaks everything down into manageable chunks. Each week has clear deliverables, and by day 30, you'll have a fully functioning digital record-keeping system that's designed to meet HMRC MTD requirements. Let's get started.

Are You Definitely Affected?

If you're unsure, add up all rental income you received in the 2024/25 tax year. Include every property, every tenant payment, and any other self-employment income. If the total exceeds £50,000, you need to act now. If it's between £30,000 and £50,000, you have until April 2027 — but there's no reason not to start preparing early.

Remember, HMRC looks at gross income, not net profit. Even if your mortgage payments, repairs, and other expenses mean you barely break even, you're still caught by MTD if your top-line rental income crosses the threshold.

Week 1: Get Your Foundation Right

The first week is about setting up infrastructure. You're not recording transactions yet — you're building the framework that everything else sits on. Resist the temptation to start entering numbers before your system is properly configured.

• Sign up for MTD-compatible software — Latch offers a free plan with core MTD compliance features including income and expense tracking, manual categorisation, and quarterly update preparation
• Add every rental property to your account with full address details, property type, and number of units
• Set up your bank account connections — link the bank accounts you use to receive rent and pay property expenses
• Add tenant details for each property — name, lease start date, monthly rent amount, and payment method
• Configure your expense categories to match HMRC Self Assessment property income categories (repairs, insurance, management fees, etc.)
• Verify your Government Gateway credentials — you will need these to connect to HMRC when MTD submissions open
• Note down your UTR (Unique Taxpayer Reference) and National Insurance number — both are required for MTD registration

Week 2: Import Your Historical Data

Week 2 is the heavy lifting. You need to get your income and expense data into your MTD software for the current tax year (starting 6 April 2025). If you've been tracking things in spreadsheets, bank statements, or — let's be honest — a shoebox of receipts, now is the time to digitise everything.

• Download bank statements for all property-related accounts from 6 April 2025 to present
• Record all rental income received — match each payment to the correct property and tenant
• Enter all property expenses — mortgage interest, repairs, insurance premiums, letting agent fees, ground rent, service charges
• Categorise each expense against the correct HMRC category (this is critical for accurate quarterly updates)
• Reconcile your software records against your bank statements — every property-related transaction should be accounted for
• Flag any transactions you are unsure about — mark them for review rather than guessing the category
• Check for any missing income — security deposits, insurance claim payouts, or one-off payments from tenants

For landlords with multiple properties, this step can take several hours. If you have 5 or more properties or more than 6 months of unrecorded transactions, consider upgrading to a paid Latch plan (from £20/month) which includes AI-powered categorisation. This can automatically match and categorise bank transactions, cutting your data entry time dramatically.

Week 3: Test Your Workflow

You've got the data in. Now you need to make sure the system works end-to-end before you rely on it for real HMRC submissions. Think of this week as a dress rehearsal — you're going through the motions of a quarterly update without actually submitting anything.

• Pick one complete month and verify every transaction is correctly categorised — check income against tenant records and expenses against receipts
• Generate a quarterly summary report covering April to June 2025 (Q1) and review it for accuracy
• Cross-check the quarterly summary against your bank statements — the total income and expenses should match
• Identify any recurring transactions that should be automated — standing orders for insurance, regular maintenance contracts, etc.
• Set up a weekly routine: allocate 15 minutes each week to review and categorise new transactions
• Test the process of adding a new expense with a receipt — photograph a receipt, upload it, categorise it, and link it to the correct property
• Review the profit and loss summary for each property — does it look reasonable compared to what you know?

Week 4: Go Live

This is it. By the end of week 4, you should have a fully operational MTD-compliant record-keeping system. The final steps are about connecting to HMRC and ensuring you're ready for your first real quarterly submission.

• Confirm your MTD for Income Tax registration with HMRC via your Government Gateway account
• Connect your Latch account to HMRC when the MTD API connection becomes available
• Verify that your digital links are in place — data should flow from bank to software to HMRC without manual re-keying
• Set calendar reminders for quarterly submission deadlines: Q1 (5 August), Q2 (5 November), Q3 (5 February), Q4 (5 May)
• Set a reminder for your End of Period Statement (EOPS) — due by 31 January following the end of the tax year
• Do a final reconciliation of all data entered to date — ensure nothing has been missed or double-counted
• Document your process so you (or anyone helping you) can repeat it each quarter without having to figure it out again

Once you've completed these steps, your ongoing commitment is roughly 15-30 minutes per week to review and categorise transactions, plus a short quarterly review before each submission. That's a manageable commitment for the peace of mind of knowing you're fully compliant.

What If You Only Have 2 Weeks?

Let's be realistic — some landlords will be reading this in mid-March with just a fortnight to go. If that's you, here's a compressed emergency plan that focuses on the absolute essentials.

• Days 1-2: Sign up for Latch, add all properties, and connect your bank accounts immediately
• Days 3-5: Focus exclusively on the current tax year — enter income and expenses from 6 April 2025 onwards, starting with the most recent months and working backwards
• Days 6-8: Categorise all transactions using HMRC categories — if you are unsure about a category, use your best judgement and flag it for review
• Days 9-11: Reconcile against bank statements — focus on getting the totals right even if individual categorisations need refining
• Days 12-14: Register for MTD with HMRC, connect your software, and verify everything is linked correctly

Shortcuts for Late Starters

If you're pressed for time, these practical shortcuts can help you get compliant faster without cutting corners on the things that actually matter.

• Use bank feeds to auto-import transactions — this eliminates manual data entry for the most time-consuming part of the process. Connect your property bank accounts and let the software pull in transactions automatically.
• Focus on the current tax year only — while it's good practice to have historical records, HMRC's MTD requirements start from April 2026. Get your 2025/26 records right first, then backfill earlier years if needed.
• Batch similar transactions — if you have 12 months of identical standing order mortgage payments, enter one and duplicate it rather than typing each one individually.
• Download letting agent statements in bulk — most agents provide annual or quarterly statements that summarise all income received and expenses deducted. These are faster to process than individual bank transactions.
• Don't worry about perfection — HMRC understands that the first year of MTD will involve a learning curve. Reasonable estimates and good-faith categorisations are far better than no submission at all.
• Photograph all paper receipts now — even if you don't categorise them immediately, having digital copies means you won't lose them. You can categorise later.

Minimum Viable Compliance

If you strip away everything else, here are the absolute bare minimum requirements for MTD compliance. This isn't the gold standard, but it's the difference between a penalty and no penalty.

The critical point: you need MTD-compatible software that can maintain digital records and submit quarterly updates to HMRC. A basic spreadsheet on its own will not be sufficient unless it has a digital link to submission software. Latch's free plan covers the core requirements — digital income and expense tracking, manual categorisation, and quarterly update preparation — so cost should never be a barrier to compliance.

The Bottom Line