Who Actually Needs to File MTD? Threshold and Eligibility Myths Debunked

Do You Actually Need to File MTD? Let's Cut Through the Confusion

Making Tax Digital for Income Tax has been generating headlines, warnings, and a fair amount of panic since the April 2026 rollout began. But buried under all that noise is a question many sole traders and landlords are quietly asking: do I actually have to do this? The honest answer is: it depends on your gross income, and the rules are more nuanced than most guides admit. This post cuts through the most common eligibility myths, explains exactly how the thresholds work, and tells you what the announced - but not yet law - £20,000 threshold actually means for you right now.

The Core Rule: What Triggers MTD Eligibility

MTD for Income Tax (the full name is Making Tax Digital for Income Tax Self Assessment, often shortened to MTD ITSA) applies to individuals who receive income from self-employment, property rental, or both - and whose combined gross income from those sources exceeds a set threshold.

Gross income means the money coming in before you deduct any expenses. Not your profit. Not what you pay tax on. The raw total received.

From 6 April 2026, the threshold is £50,000 gross income per tax year. If you are above this, you are mandated. If you are below it, you are not currently required to file under MTD - though you may choose to voluntarily.

From 6 April 2027, the threshold drops to £30,000 gross income. Anyone above £30,000 from that point will be mandated.

Myth 1: "I Only Count My Self-Employment Income"

This is one of the most common misconceptions. Some sole traders assume the threshold only applies to their trading income - the money earned from their business. Landlords sometimes think the opposite: that rental income is assessed separately.

In reality, HMRC combines both sources when assessing your eligibility. If you are self-employed and also receive rental income from a property you let out, both figures are added together to reach a single total.

Here is a practical example. Say you earn £32,000 from freelance work and receive £20,000 in gross rental income. Your combined total is £52,000. That puts you above the £50,000 threshold for the 2026 mandate - even though neither source alone would have triggered it.

This is a genuinely important point that catches people off guard. We have written a dedicated guide on exactly this topic: Self-Employment vs Property Income: Which Counts Toward Your MTD £50k Threshold?

Myth 2: "Multiple Self-Employment Businesses Are Assessed Separately"

Some people run more than one self-employed business. Perhaps you do freelance design work and also take paid photography jobs, each reported as a separate trade. The myth is that HMRC looks at each business in isolation.

It does not. All gross income from all self-employment sources is combined. If your design work brings in £28,000 and your photography brings in £25,000, your total self-employment gross income is £53,000 - above the threshold, even if each individual trade falls below it.

The same principle applies when you add rental income on top. Everything is pooled.

For a detailed breakdown of how multiple trades are treated, see our post: Multiple Self-Employment Businesses and MTD: Threshold Rules Explained

Myth 3: "The £20,000 Threshold Is Already Confirmed"

You may have seen news articles or social media posts saying MTD will eventually apply to everyone earning over £20,000. This is partially true - but the word "eventually" is doing a lot of work in that sentence.

The government announced in 2024 that it intends to extend MTD to those with gross income above £20,000. However, this has not been legislated. No date has been set in law. There is no statutory instrument confirming when it will apply or exactly how.

What that means for you today: if your gross income is below £30,000, you are not mandated under any current law. You cannot be penalised for not filing MTD. The £20,000 figure is a government intention that could still change, be delayed, or be amended before it ever reaches the statute book.

Myth 4: "My Gross Income Is Under £50k So I Have Nothing to Worry About Until 2027"

Mostly true - but worth nuancing. If your gross income from self-employment and property combined is below £50,000 for the 2024-25 tax year, you are not mandated under the April 2026 rules.

However, if your income is between £30,000 and £50,000, the April 2027 threshold change will bring you in. That is less than twelve months away from the time of writing. If you are in that band, preparation now is sensible - not urgent, but sensible.

Also worth noting: if your income fluctuates, you should check each year. HMRC uses the prior year's gross income to determine whether you meet the threshold for the coming tax year. A good year that pushes you above the threshold could trigger a mandate you were not expecting.

Myth 5: "Landlords With Only One Property Are Exempt"

The number of properties you own is not a factor in determining MTD eligibility. The threshold is based on gross rental income received, not the number of properties generating it.

A landlord with a single property generating £55,000 in gross rent is mandated. A landlord with five properties generating £25,000 in total gross rent is not (under the current rules). It is purely about the income figure.

Myth 6: "PAYE Income Counts Toward the Threshold"

It does not. If you are employed and also have self-employment or rental income on the side, your employment income - the salary paid through PAYE - is not included in the MTD threshold calculation.

Only gross income from self-employment and UK property rental counts. So if you earn £40,000 employed and £12,000 from a side business, your MTD-relevant gross income is £12,000. You would not be mandated under any current or announced threshold.

This catches people out in both directions. Some employed people with side income worry unnecessarily. Others forget that their rental income needs to be added to their self-employment income.

What About Exemptions?

HMRC does recognise some situations where MTD obligations may not apply or can be deferred. These are narrow and specific - not broad get-outs.

Digitally Excluded Individuals

If you genuinely cannot use digital tools due to age, disability, or remote location with no reasonable internet access, you can apply to HMRC for an exemption. This is assessed case by case. Simply preferring paper is not sufficient grounds.

Reasonable Excuse

If you fail to meet an MTD obligation due to circumstances genuinely outside your control - a serious illness, bereavement, or HMRC system failure - HMRC may accept a reasonable excuse and waive penalties. This is not a route to avoid filing altogether; it applies to isolated failures, not ongoing non-compliance.

We have written about this in more detail: MTD Exemptions and Reasonable Excuse: Can You Delay Your Q1 Filing?

Non-Resident Landlords and Specific Trust Structures

Some individuals with complex tax affairs - including certain non-resident landlords and those filing on behalf of trusts or estates - may fall outside the current MTD scope. If this applies to you, speak to a tax professional rather than assuming either way.

Trading Allowance and Property Allowance

If your gross income from self-employment is £1,000 or less, you can claim the trading allowance and may not need to file a tax return at all - let alone MTD. Similarly, if your gross property income is £1,000 or less, the property allowance may mean no reporting obligation exists.

These allowances apply to income below £1,000 - they are not relevant to most people asking about MTD thresholds, but they are worth knowing if your income is very small.

Read more about how the trading allowance interacts with MTD: Trading Allowance for Sole Traders: MTD Q1 Explained

How the Threshold Assessment Actually Works in Practice

Here is a simplified version of how HMRC determines whether you are mandated:

1. Look at your gross self-employment income for the previous tax year (all trades combined).
2. Look at your gross UK property rental income for the previous tax year (all properties combined).
3. Add those two figures together.
4. If the total exceeds the current threshold (£50,000 for 2026, £30,000 from 2027), you are mandated for the current tax year.

If you are right on the boundary, or your income varies year to year, you should check your position each April. The threshold assessment resets annually.

Mixed Income: A Common Scenario Worth Spelling Out

Plenty of people reading this will have both rental and self-employment income. This is an increasingly common situation - a freelancer who also rents out a flat, or a tradesperson who inherited a property. The MTD rules treat you as a single individual with a combined income, not as two separate taxpayers.

When you file MTD, you report both income streams - but separately within the same software. Your quarterly updates will cover each source individually, while your final declaration brings everything together at the end of the tax year.

This dual-reporting structure is something a lot of mixed-income filers find unfamiliar at first. Our guide on Mixed Income and MTD: Landlords with Self-Employment (Q1 Setup Check) walks through the setup in plain terms.

For the expense side of this - which costs belong to which income stream - see: Mixed Income MTD: Which Expenses Count for Self-Employment vs Property

How to Check Your Own Position Quickly

If you are unsure whether you are mandated, the fastest route is to look at your most recent tax return (the one covering the 2024-25 tax year if you are checking for 2026 obligations). Find the gross figures for self-employment and property income before any expense deductions. Add them together. Compare to the threshold.

You can also use our free eligibility checker: Do I Need to File Making Tax Digital for Income Tax? Free Checker

If you do not have a recent tax return to hand, look at your invoices, bank statements, or rental income records for the 2024-25 period. Estimate conservatively - if you think you might be close to the threshold, assume you are above it and seek clarity rather than hoping you fall below.

What If You Are Not Mandated - But Want to File Voluntarily?

MTD voluntary participation is open to people below the threshold. Some people choose this because it helps them stay on top of their records throughout the year, or because they anticipate crossing the threshold soon and want to build the habit before it becomes compulsory.

Voluntary filing carries no penalty risk and gives you the same benefits as mandated filing - cleaner records, digital submissions, and a clearer picture of your tax position in real time. It is not something you are pushed into; it is simply available if it suits you.

Summary: What You Actually Need to Know

MTD for Income Tax applies from April 2026 if your combined gross income from self-employment and UK property rental exceeded £50,000 in the previous tax year. From April 2027, that threshold drops to £30,000. The £20,000 threshold you may have read about is government intention only - it is not law. PAYE employment income does not count toward the threshold. The number of properties or businesses you have does not matter - only the combined gross income total does. Exemptions exist but are narrow. If you are in any doubt about your position, check your previous year's gross figures and use the tools available to get a clear answer rather than guessing.