Making Tax Digital for Contractors — Limited Company vs Sole Trader

If you're a contractor, you've probably heard about Making Tax Digital for Income Tax (MTD ITSA). But whether it actually affects you depends entirely on how your business is structured. The answer is different for limited company contractors and sole trader contractors — and getting it wrong could mean missed deadlines or unnecessary panic.

MTD ITSA does not apply to limited companies

This is the single most important thing to understand: Making Tax Digital for Income Tax applies to Income Tax, not Corporation Tax.

If you work through your own limited company, your company pays Corporation Tax on its profits. That's a completely separate tax regime. MTD ITSA has nothing to do with it.

Your limited company is a separate legal entity. It earns the income, it pays the tax. The quarterly reporting obligations under MTD ITSA — the ones that require digital record-keeping and submissions to HMRC — do not apply to your company's income.

What about your salary and dividends?

As a limited company director, you typically pay yourself a combination of a PAYE salary and dividends. Neither of these triggers MTD ITSA obligations:

• PAYE salary — this is employment income, taxed through your company's payroll. It's reported to HMRC through RTI (Real Time Information), not MTD.
• Dividends — these are investment income from your company. They're declared on your Self Assessment tax return, but they're not self-employment income or property income, so MTD ITSA doesn't cover them.

In short, if your only income comes from your limited company as salary and dividends, MTD ITSA does not apply to you.

IR35 status is irrelevant to MTD ITSA

Whether you're inside or outside IR35 makes no difference to your MTD obligations. IR35 determines how your income is taxed for National Insurance and Income Tax purposes when working through an intermediary — but it doesn't change the fundamental structure of your company or turn you into a sole trader.

If you're inside IR35 and your fee-payer deducts tax at source, that's still handled through PAYE mechanisms. If you're outside IR35, your company receives the income and pays Corporation Tax. Either way, MTD ITSA doesn't enter the picture for the company itself.

If you're a sole trader contractor, MTD absolutely applies

Here's where it gets different. If you work as a self-employed sole trader — a freelance plumber, an IT consultant trading in your own name, a self-employed graphic designer — then MTD ITSA applies to you if your qualifying income exceeds the threshold.

From April 2026, MTD ITSA is mandatory for sole traders and landlords with qualifying income over £50,000. From April 2027, the threshold drops to £30,000. Further reductions are expected in later years.

As a sole trader contractor, you'll need to:

• Keep digital records of your income and expenses
• Submit quarterly updates to HMRC through compatible software
• Submit a final declaration at the end of the tax year

This replaces parts of the traditional Self Assessment process with more frequent, digital reporting.

How to know which you are

This might sound obvious, but it's worth spelling out because the distinction matters so much:

• Limited company — you've registered a company with Companies House. The company has its own name, its own tax reference, and its own bank account. The company earns the income and you're a director (and usually an employee) of that company. The company is a separate legal entity from you.
• Sole trader — you ARE the business. There's no separate legal entity. Your business income is your personal income. You report it on your Self Assessment tax return and pay Income Tax on your profits.

If you're not sure, check whether you have a Companies House registration and a Corporation Tax reference from HMRC. If you do, you're operating through a limited company. If you just have a UTR (Unique Taxpayer Reference) and file Self Assessment as self-employed, you're a sole trader.

The exception: Ltd directors with side income

Here's the catch that trips people up. If you're a limited company director but you also have self-employment income or rental property income on the side, MTD ITSA applies to that income.

For example:

• You contract through your Ltd company during the week, but you also do freelance consulting on the side as a sole trader — MTD applies to the sole trader income
• You own a buy-to-let property personally (not through the company) — MTD applies to the rental income
• You have both self-employment income and rental income — they're combined to determine whether you hit the threshold

The key principle is simple: MTD ITSA follows the type of income, not the person. If you have qualifying income (self-employment or property) above the threshold, you're in scope — regardless of what else you earn through your company.

Already doing MTD for VAT? That's separate

If you're VAT-registered — whether as a sole trader or through your limited company — you may already be submitting VAT returns digitally under Making Tax Digital for VAT. That's been mandatory since 2019 for most VAT-registered businesses.

But MTD for VAT and MTD for Income Tax are completely separate obligations. Complying with one doesn't cover the other. They have different deadlines, different submission requirements, and different software. Being up to date with MTD for VAT doesn't mean you're covered for MTD ITSA.

If you're a sole trader who is both VAT-registered and above the Income Tax threshold, you'll need to manage both sets of digital submissions.

Getting started

If MTD ITSA applies to you — because you're a sole trader contractor above the threshold, or because you have qualifying side income — the first step is getting your records in order.

You don't need expensive accounting software. A well-structured spreadsheet that tracks your income and expenses is all HMRC requires for your digital records. What you need on top of that is compatible software to submit your quarterly updates.

Flonancial is free MTD-compatible software that works with your existing spreadsheet. Download our free spreadsheet template, log your income and expenses throughout the quarter, and use Flonancial to submit your figures directly to HMRC. No subscription fees, no accounting jargon, no data leaving your browser.

Whether you're a sole trader contractor who needs to start quarterly reporting, or a Ltd company director with rental income on the side, the process is the same: keep clean records, submit on time, and don't pay for something you can do for free.