Common Tax Scams Targeting Self-Employed People

Why Self-Employed People Are Prime Targets

Being self-employed in the UK comes with many advantages — flexibility, independence, and the ability to build something of your own. But it also comes with a vulnerability that employed workers don't face to the same degree: you manage your own taxes, and that makes you a prime target for tax scams.

When you're employed, your employer handles PAYE, National Insurance, and pension contributions. Your interaction with HMRC is minimal. But as a self-employed person, you register directly with HMRC, file your own self-assessment returns, make your own payments on account, and now — under Making Tax Digital — submit quarterly updates. This direct relationship with HMRC creates multiple touchpoints that scammers can exploit.

Self-employed people are also more likely to be working alone, without colleagues to consult when something seems suspicious. A quick "Does this email look right to you?" asked across an office desk can stop a scam in its tracks. When you work alone, there's no second opinion readily available.

This guide covers the most prevalent tax scams targeting self-employed people in 2026 and provides practical advice for each one.

The Fake Tax Refund Scam

This remains the single most common tax scam in the UK and has been for over a decade. Its longevity speaks to its effectiveness.

How it works: You receive an email, text message, or letter claiming that HMRC has calculated your tax and you're owed a refund. The amount is usually specific and believable — say, £462.38 — to make it seem like a genuine calculation. You're asked to click a link or reply with your bank details to receive the refund.

Why self-employed people fall for it: Self-employed individuals regularly receive legitimate refunds, particularly if they've overpaid their payments on account or if their actual tax liability was lower than estimated. The idea of getting money back from HMRC feels plausible, even welcome.

How to spot it: HMRC will never email, text, or call you to offer a refund. Genuine refunds are processed automatically through your self-assessment account or sent by cheque. If you receive any communication offering a refund, it's a scam. Full stop.

For a comprehensive guide to spotting HMRC impersonation scams across all channels, see our detailed post on HMRC scam emails and texts.

The Fake Agent or Tax Preparer Scam

This scam targets self-employed people who find tax filing confusing or stressful — which, in fairness, describes a significant proportion of sole traders.

How it works: You encounter an advertisement — often on social media or through unsolicited email — for a tax preparation service offering to file your self-assessment for a very low fee, or promising a guaranteed large refund. The "service" asks you to provide your Government Gateway login, UTR number, and personal details. They may file a fraudulent return claiming deductions you're not entitled to, pocketing the refund. Or they may simply steal your identity.

Why self-employed people fall for it: Self-assessment is genuinely confusing for many people, and the desire to delegate it to someone else is understandable. Low-cost services seem like a good deal, especially compared to traditional accountancy fees.

How to spot it:

• Legitimate tax agents will never guarantee a specific refund amount before reviewing your records
• Any service asking for your Government Gateway password is suspect — legitimate agents use HMRC's agent authorisation process
• Check that the agent is registered with a recognised professional body (ICAEW, ACCA, AAT, or CIOT)
• Be wary of "no win, no fee" tax reclaim services that take a large percentage of any refund

According to the HMRC guidance on using tax agents, you should always verify that anyone acting on your behalf with HMRC is properly authorised and qualified.

The MTD Compliance Scam

With Making Tax Digital for Income Tax now mandatory for self-employed individuals with qualifying income above £50,000 (and soon £30,000), scammers have developed a new category of fraud targeting the confusion around MTD requirements.

How it works: You receive an email or letter claiming that you need to purchase specific software, pay a registration fee, or verify your MTD status through a provided link. The communication looks official and references genuine HMRC terminology. Some variants claim that failure to act will result in immediate penalties.

Why self-employed people fall for it: MTD is genuinely confusing for many sole traders. The requirements have changed several times, the deadlines have shifted, and the penalties for non-compliance are real. This creates anxiety that scammers exploit.

How to spot it:

• HMRC does not charge a fee for MTD registration
• You are not required to purchase any specific software — you choose your own HMRC-compatible software
• Legitimate MTD communications from HMRC come through your Government Gateway account
• There's no such thing as "MTD verification" — if you're signed up for self-assessment and use compatible software, you're covered

Our guide to Making Tax Digital explains the actual requirements in plain English.

The Employment Status Scam

This is a more sophisticated scam that targets contractors and freelancers.

How it works: A company or intermediary offers you a contract but insists you work through their specific umbrella company or payment scheme. The scheme claims to minimise your tax through clever structuring — perhaps paying a small salary with the remainder as "loans," "expenses," or "dividends" from an offshore entity. You receive more take-home pay than you'd expect, which feels like a benefit.

Why self-employed people fall for it: The promise of paying less tax is appealing, especially for contractors on good day rates who face high marginal tax rates. The schemes often use complex jargon and reference legitimate-sounding tax provisions.

Why it's dangerous: These arrangements are almost always tax avoidance schemes that HMRC considers aggressive or illegal. HMRC has pursued them aggressively, and participants — not just the scheme operators — can be held liable for the unpaid tax, plus interest and penalties. The loan charge legislation means that even historic participation in such schemes can result in significant tax bills.

How to protect yourself:

• If a payment arrangement seems too good to be true, it almost certainly is
• Seek independent advice from a qualified accountant or tax adviser — not one recommended by the scheme operator
• Check HMRC's Spotlight series, which names specific schemes HMRC considers to be tax avoidance
• Understand the difference between legitimate tax planning and aggressive avoidance

The Council Tax or Business Rates Scam

How it works: You receive a call, email, or letter claiming that you've been overpaying council tax or business rates and offering to reclaim the difference for you — for a fee. Some legitimate companies do help with business rates appeals, but many scam operations charge upfront fees, provide no service, and disappear.

Why self-employed people fall for it: If you work from home and claim business use of home as an expense, you may wonder whether your council tax is correct. The offer of money back is appealing.

How to spot it: Legitimate business rates challenges can be made directly through the Valuation Office Agency at no cost. Be wary of any company that charges an upfront fee or demands a large percentage of any saving. Always research the company independently before engaging.

The Fake HMRC Penalty Notice

How it works: You receive an official-looking letter or email stating that you've incurred a penalty for late filing, late payment, or an error on your return. The notice includes a payment link or phone number.

Why self-employed people fall for it: Penalties from HMRC are a genuine concern. The late filing penalty for self-assessment is £100, and additional penalties accrue over time. The fear of growing penalties creates urgency.

How to spot it: Genuine HMRC penalty notices are sent by post (not email) and include your UTR number. They direct you to pay through your Government Gateway account or by the standard HMRC payment methods — never through a link in an email. If you're unsure whether a penalty is genuine, log in to your Government Gateway account directly (not through any link) and check your account.

Staying Safe: A Summary

The common thread through all these scams is that they exploit two things: the complexity of the UK tax system and the anxiety that self-employed people feel about getting it wrong. The best defences are:

Stay informed. Understanding how HMRC actually communicates with you makes it easier to recognise fraudulent communications. Our self-assessment guide is a good starting point.

Keep your records current. When you know your actual tax position — your income, expenses, and estimated liability — you can immediately recognise when a scam claim doesn't match reality. This is one of the most valuable aspects of using Accounted: I keep your records up to date so you always know where you stand.

Verify independently. Never use contact details provided in a suspicious communication. Always go directly to gov.uk or call HMRC on their published numbers.

Use trusted professionals. If you need a tax agent, accountant, or software, choose established, regulated providers. Check professional body registrations.

Report scams. Reporting helps protect others. Forward suspicious emails to phishing@hmrc.gov.uk, texts to 60599, and report fraud to Action Fraud on 0300 123 2040.

You can explore how Accounted helps you stay compliant and protected on our features page, or sign up to get started with Penny today.

Useful Resources

• HMRC Self Assessment guidance
• HMRC's guidance on self-employed expenses

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