Making Tax Digital for Income Tax (ITSA) 2026–2028: A Plain-English Guide to Getting Ready for {Topic_Name}

• What Making Tax Digital for Income Tax (often shortened to MTD for ITSA) actually is, in everyday terms.
• Who needs to comply first, and when, based on the new rollout thresholds for 2026/27 onwards.
• What “Quarterly Updates” and “Digital Links” mean in practice, and what you’ll need to do differently.
• How to get your records, software, and routines ready without it taking over your life.
• Common mistakes we see, and simple ways to avoid them.

MTD for Income Tax is a big shift, but it doesn’t need to be stressful. The aim is straightforward: keep digital records and send regular updates to HMRC using compatible software. If you prepare early, it becomes a steady routine rather than a last-minute panic.

MTD stands for Making Tax Digital. For Income Tax Self Assessment (ITSA), it means you’ll keep your business or property income records digitally and send updates to HMRC throughout the year using MTD-compatible software.

• Digital records: instead of relying on a paper file or a spreadsheet that isn’t properly connected, you keep your income and expense details in a digital system.
• Quarterly Updates: you send HMRC a summary of income and expenses four times a year (more on what that actually looks like below).
• End of year finalisation: you still confirm your final figures after the tax year ends, including any adjustments, allowances, and reliefs.

It’s important to know what MTD for ITSA is not. It is not a requirement to pay tax four times a year (although payments may change in future for some people). And it is not HMRC demanding every receipt in real time. In practice, it’s about keeping tidy digital records and sending regular summaries.

If you’re unsure whether MTD applies to you at all, this internal guide may help: Do I Need To Do MTD?

HMRC is introducing MTD for Income Tax in stages, based on your qualifying income. The thresholds you need to be aware of are:

• From April 2026: if your qualifying income is over £50,000 (2026/27 tax year onwards).
• From April 2027: if your qualifying income is over £30,000.
• From April 2028: if your qualifying income is over £20,000.

“Qualifying income” generally refers to the gross income (turnover) from self-employment and/or property (before expenses). If you have both a small business and rental income, HMRC typically looks at the combined total when working out whether you cross the threshold.

Because these dates are tied to tax years, your preparation window can be shorter than it looks. If you’ll be in the first wave (over £50,000), you’ll want your systems working well before April 2026 so you’re not learning new software while trying to run your business.

For many people, the biggest change is not the tax itself, but the routine around record-keeping. Under MTD for ITSA, you’ll need a reliable method for:

• Recording each sale or invoice (or daily takings if you’re a cash-based business).
• Recording business costs with enough detail to understand what they were for.
• Keeping the records in a digital format that can be shared with HMRC through software.
• Submitting quarterly summaries on time.

If your current approach is “keep a bag of receipts and sort it once a year”, MTD will feel like a big change. If you already use cloud accounting or a well-managed bookkeeping process, it’s usually a manageable step up.

A Quarterly Update is a digital summary you send to HMRC four times a year. Think of it as a progress report, not the final answer.

• It usually includes totals for income and expenses for the quarter.
• It is sent through MTD-compatible software (not typed into the old Self Assessment portal).
• It helps HMRC build a picture of how your year is going.

In everyday terms, you’re telling HMRC: “Here’s what I’ve earned and spent so far.” It’s not the final tax calculation, and it doesn’t replace year-end work such as accounting adjustments, claims, or checking what’s allowable.

Quarterly Updates do have deadlines, and missing them can lead to penalties under HMRC’s points-based system. The best way to stay safe is to build a simple monthly routine (for example, 30 minutes each week or a couple of hours each month) so the quarterly submission is just a tidy-up rather than a rescue mission.

“Digital Links” is one of those HMRC phrases that sounds more complicated than it needs to be. In practice, a digital link is simply an electronic connection between where your numbers are stored and where they’re sent from.

Here’s a simple way to think about it:

• If you copy and paste figures from one place to another (or re-type them), that breaks the digital link.
• If your systems are connected so the data flows electronically (for example, by an integration, an import, or a connected spreadsheet), that keeps the digital link.

HMRC’s aim is to reduce errors caused by manual copying. For some businesses, this means moving away from “spreadsheet plus lots of copying” and towards a cloud bookkeeping tool that connects properly to your bank and to MTD submissions.

If you’re choosing software, this guide is a good starting point: Choosing the Right Cloud Accounting Tool for MTD Compliance

To comply with MTD for ITSA, you’ll need to use MTD-compatible software to keep records and submit updates. What that looks like depends on how you currently work:

• If you already use cloud accounting: you may just need to make sure your software is MTD for ITSA compatible and that your bookkeeping categories are set up sensibly.
• If you use spreadsheets: you may need bridging software and a compliant digital process. The key is that the records and submission route must meet HMRC’s digital record-keeping and digital link requirements.
• If you use paper or notes: you will need to change approach. MTD is built around digital record-keeping, so this is the moment to adopt a tool and a routine you can actually stick with.

In practice, most people find cloud accounting the least stressful long-term because it reduces admin and makes quarterly submissions far easier. It also helps you stay on top of cash flow, which is a welcome side benefit.

Below is a practical plan you can follow, whether you’re a sole trader, a landlord, or both. The goal is to be calm and ready before April 2026 (or your relevant start date).

• Step 1: Confirm when you’re in scope. Start with your turnover from self-employment and/or property. If you’re close to the threshold, don’t guess. Check properly, because timing matters.
• Step 2: Choose your record-keeping method. Pick a cloud tool or a compliant spreadsheet approach that fits your working style.
• Step 3: Set up categories that make sense. Good bookkeeping is mostly about consistency. If you’re not sure what counts as an allowable expense, ask early rather than fixing it later.
• Step 4: Connect your bank feed (where appropriate). This speeds up bookkeeping, but you still need to review and label transactions correctly.
• Step 5: Build a small routine. A weekly or monthly habit makes quarterly updates straightforward.
• Step 6: Keep evidence. Digital records still need supporting documents. Photos of receipts, supplier invoices, and mileage logs all matter.
• Step 7: Do a “dry run” quarter. Before your first mandatory submission, practise producing a quarterly summary so you can spot gaps in your process.

If you want a simple overview of the process, this internal guide explains it clearly: How do I do MTD

MTD is not about recording everything imaginable. It’s about keeping enough digital information to support your income and expenses properly.

• Sales/income: date, amount, and source (for example, invoices raised, card takings, cash takings, platform income).
• Business costs: date, amount, supplier, and what it was for (for example, materials, software, fuel, insurance).
• Property income (if relevant): rent received, letting agent fees, repairs, insurance, and other allowable property costs.

If you’re VAT-registered, you’ll already be used to digital VAT records and MTD for VAT submissions. MTD for ITSA is similar in spirit, but it applies to Income Tax and introduces quarterly updates.

For VAT processes, especially if you’re trying to reduce errors, you may find this useful: Automating VAT Reconciliation Under MTD: Save Time and Reduce Errors

• “Does this mean HMRC will tax me more?” No. MTD changes how you report, not the underlying tax rules. Good records can actually help you claim what you’re entitled to.
• “Will I have to pay tax quarterly?” Not automatically under MTD for ITSA. Quarterly updates are reporting, not payment demands.
• “I’m not good with tech.” You don’t need to be. You need a simple system you can repeat. Most modern tools are designed for non-accountants.
• “I’m too busy to do bookkeeping all year.” That’s exactly why a light, regular routine is best. It’s far less time overall than an annual catch-up.

Sole trader with regular invoices

Tradesperson with mixed card and cash takings

Landlord with one or two properties

MTD introduces more frequent touchpoints with HMRC. The exact quarterly update deadlines will depend on your assigned quarterly periods, but the principle is the same: there are four submissions during the tax year, then an end-of-year finalisation afterwards.

In practical terms, you should plan for:

• Four quarterly updates: a regular rhythm during the year.
• End of year finalisation: confirming final figures, adjustments, and claims after the tax year ends.

The safest approach is to treat bookkeeping like a routine business task (like ordering materials or chasing invoices). Once it’s in your diary, it becomes much less daunting.

• Check your last tax return and estimate whether you’ll be over £50k, £30k, or £20k qualifying income in the relevant year.
• Open a separate business bank account if you don’t already have one (this alone can make bookkeeping far easier).
• Pick MTD-friendly software that you can actually use consistently.
• Make sure you understand what “digital links” mean for your setup.
• Decide who does what: you, your bookkeeper, your accountant, or a mix.
• Create a monthly bookkeeping slot in your calendar.
• Store receipts digitally (photo and attach to the transaction where possible).

If you’re just starting out and want to build good habits from day one, this is worth a read: MTD Readiness for Startups: Building Digital Tax Records from Day One

At Tax Digital, we focus on making MTD practical. That means helping you choose a sensible setup, keeping your records compliant, and making sure submissions are done correctly and on time. We’ll always explain what we’re doing and why, in plain English, so you feel in control rather than overwhelmed.

If you’re approaching the 2026/27 start date (or you expect to fall into the later thresholds), the best time to get ready is before you’re forced to. A steady setup now is far easier than rushing later.

Will MTD for ITSA replace Self Assessment?

If my income drops below the threshold, can I stop?

Do I still need to keep receipts?

What if I have more than one income source?

• MTD for Income Tax starts from April 2026 for those over £50,000 qualifying income, then April 2027 (over £30,000), then April 2028 (over £20,000).
• You’ll need digital records and quarterly updates submitted through compatible software.
• “Digital links” simply means no manual copying and pasting between systems.
• A small monthly routine is the easiest way to stay compliant and avoid stress.

If you’d like to sense-check whether MTD applies to you and what a sensible setup looks like for your situation, start here: Do I Need To Do MTD?