Switching from sole trader to limited company – Does MTD still apply?

If you’re a sole trader and Making Tax Digital for Income Tax (MTD for IT) is making you rethink your business structure, you’re not alone. We’ve spoken to many business owners who are asking the same question: “If I become a limited company, can I get out of quarterly MTD reporting?”

The answer is technically yes, for now. But incorporating your business affects far more than how often you report to HMRC. It changes how your business is taxed, the records you’ll need to keep, and the legal responsibilities you’ll take on. So you really need to know if it’s the right step first.

At Treetops, we help sole traders prepare for MTD every day. As a team of chartered accountants and tax specialists with years of experience, we’re always one step ahead of industry changes and are here to make sure your business is too. We’ve created this guide to help you truly understand when MTD still applies, what changes if you become a limited company, and the key factors you should consider before making a decision.

Weighing up your options? Get tailored advice from our MTD accountants.

Will setting up a limited company help you avoid Making Tax Digital for Income Tax?

Technically, yes. MTD for Income Tax currently applies to sole traders and landlords whose qualifying income exceeds the relevant threshold. Limited companies aren’t included in this because they are a separate legal entity and taxed differently. Instead of paying Income Tax on business profits, a limited company pays Corporation Tax and follows its own reporting rules.

But avoiding MTD shouldn’t be your only reason for changing business structure. There’s a lot more that goes into it, from legal compliance and tax administration to reporting rules. The time you save in one area can soon become extra work somewhere else.

How does Corporation Tax differ from Income Tax?

When people hear that Corporation Tax rates can be lower than Income Tax, they assume that switching to a limited company will automatically save them money. In our experience, it’s rarely that simple.

As a sole trader, your business profits are your personal income. You pay Income Tax on those profits at 20%, 40%, or 45% depending on how much you earn, plus Class 4 National Insurance contributions.

As a limited company, the company pays Corporation Tax on its profits. This is currently 19% for profits up to £50,000, rising to 25% for profits above £250,000 (with marginal relief in between). If your company is “associated” with others under common control, the profit limits get shared across the group. Your company may also be liable for employer’s National Insurance.

And that’s only the first layer. When you withdraw profits as salary and dividends, it creates a second layer of personal tax, which can sometimes make incorporation less efficient than staying as a sole trader.

The key point is that whether you end up paying more tax or less overall depends on your profit level, how you extract money from the business, and your personal circumstances.

Quick breakdown of the differences between sole trader and limited company

Are there different digital record-keeping requirements for different business structures?

Yes. If you’re a sole trader within the MTD thresholds, you’ll need to keep digital records and submit quarterly updates to HMRC using compatible software, followed by a final declaration.

Limited companies are not subject to MTD for Income Tax, but that doesn’t mean less admin. You are already required to file accounts with Companies House and submit a Corporation Tax return (CT600) each tax year. And if you’re VAT-registered, that’s already under MTD regardless of your structure.

Is company formation worth it just to avoid quarterly reporting?

For most people we speak to, no. While avoiding MTD quarterly reporting might seem appealing, incorporation brings its own administrative responsibilities that can be just as demanding. You will need to file annual accounts with Companies House, submit a Corporation Tax return, run payroll if you pay yourself a salary, and potentially file a personal Self Assessment return on top of all of that.

The decision to incorporate should be driven by the overall benefit to your business. Not by a desire to avoid one particular compliance requirement. That said, if incorporation makes sense for other reasons and the MTD timing works in your favour, that is a legitimate consideration to factor in.

What changes after incorporation?

Moving from a sole trader to a limited company is not simply a change of name.

A few of the bigger changes include:

• Legal identity — the company becomes its own legal entity, able to own assets, enter contracts, and take on liabilities in its own name
• Tax obligations — you move from Self Assessment Income Tax to Corporation Tax rules, and will need to think carefully about how you pay yourself
• Banking — you will need a separate business bank account in the company’s name
• Accounting — you will need to prepare statutory accounts, file Corporation Tax returns, and submit information to Companies House
• Filing deadlines — you’ll have new deadlines to remember
• Director responsibilities — as a director, you’ll take on legal duties under the Companies Act

What are the key considerations before incorporating?

Before deciding to incorporate, we usually sit down with clients to understand the bigger picture. Here are some questions you can ask yourself to start to work out whether a limited company is the right fit.

Is it tax efficient?

The tax gap between a sole trader and a limited company can be modest, and a limited company structure does give you more flexibility over how and when you extract profits, which can help you manage your overall tax position. But that flexibility only pays off if it’s modelled against your real numbers.

Can you take on the extra admin?

Running a limited company involves more admin, such as annual accounts, a Corporation Tax return, a confirmation statement, and possibly payroll and VAT returns to manage. This is ongoing work, not a one-off. Many business owners find the extra time and accountancy cost worth it, but it is important to go in with realistic expectations.

Have you thought about the costs?

Incorporating itself is relatively straightforward and inexpensive. It can be done via Companies House for as little as £100. It’s the ongoing costs of running a company that add up, from higher accountancy fees to additional software costs. Weigh these costs against potential tax savings to get a clear picture.

Does it fit your business plans?

Your future plans matter. If you intend to grow the business, take on employees, bring in investment, or eventually sell, a limited company structure is often more appropriate and can make those steps easier. If you have no intention to scale, the additional complexity of a company may not be justified.

Is now the right time?

Your wider financial situation plays a significant role. Do you have other sources of income? Are you planning a major purchase such as a property? Do you have significant personal outgoings that depend on regular cash flow from your business? All of these factors influence whether incorporation is the right move and, if so, when the right time to do it might be.

Looking for business structuring and MTD advice? Get in touch with us

If you are weighing up whether to incorporate or simply trying to understand what MTD for Income Tax means for your business, we are here to help. At Treetops, our team works with sole traders and limited companies across a range of sectors. Our fully qualified accountants and consistent 5-star service are trusted by hundreds of clients in similar positions.

For advice tailored to your specific circumstances, contact us today or email us at [email protected].

You might also be interested in: Common misconceptions about MTD for Income Tax.

Frequently asked questions about delaying MTD with incorporation

Will Corporation Tax also become digital?

HMRC has confirmed it will not proceed with MTD for Corporation Tax, noting that the rules for Corporation Tax are too complicated and varied, and that requiring all companies to report digitally would not provide enough benefits. Instead, HMRC will explore more targeted digital improvements for corporate taxpayers.

Should I speak to an accountant before deciding?

Yes, the connection between business structure, tax efficiency, personal income, and compliance obligations is complex, and the right answer is different for everyone we sit down with. A short conversation with us can help you avoid making a costly or time-consuming decision.

How do your allowable expenses get factored into quarterly reporting?

Under MTD for Income Tax, sole traders will submit quarterly updates showing their income and expenses. Allowable business expenses reduce your taxable profit in the same way they do now, but the main difference is the frequency of reporting. You are not paying tax quarterly, just submitting your figures more regularly. Good record-keeping throughout the year makes this process much more straightforward.

Should I be using MTD-compatible software regardless of my business structure?

In most cases, yes. Even if you are not yet within the MTD for Income Tax thresholds, using cloud-based accounting software makes it easier to keep accurate records, work with your accountant, and prepare for future changes. Many of our clients agree that it saves them time and reduces errors compared to spreadsheets or paper records. And if you are VAT-registered, you’re already required to use MTD-compatible software for your VAT returns.

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