How Taxfix Works: get your taxes sorted by an accredited accountant

Self Assessment, company taxes, tax advice, and Making Tax Digital software. All backed by real, UK-accredited accountants.

✓ Accredited by ACCA, ICAEW, and AAT – 5+ years experience each

✓ Done-for-you: your accountant calculates, optimises, and files

✓ Making Tax Digital compliant software

✓ Accuracy Guarantee on every return

What tax services does Taxfix offer?

Whether you're self-employed , a landlord, a company director , or simply need expert tax advice, Taxfix covers your full tax picture. All in one place, all online, all backed by real UK accountants.

Self Assessment tax returns: filed by a real accredited accountant

You answer a few plain-English questions, upload your documents, and a real UK-accredited accountant does the rest: calculating your tax bill, identifying every allowance you're entitled to, and filing directly with HMRC on your behalf. Self Assessment starts from £99, and every return comes with our Accuracy Guarantee : if we make a mistake, we fix it at no extra cost. 

Learn more about Self Assessment →

Tax advice: Expert consultations with UK accountants

Got a specific tax question but not ready to file? Book a 30-minute consultation with a UK-accredited accountant for £139. Whether it's about income from abroad , a property sale, pension contributions, or anything in between. You get straight answers from a qualified expert, not a chatbot. 

Learn more about tax advice →

MTD-compliant software: manage your finances and stay compliant with Making Tax Digital

Making Tax Digital for Income Tax is HMRC's new way of collecting tax data from self-employed people and landlords. Our Making Tax Digital software lets you track income and expenses , connect your bank account, upload invoices , and submit your quarterly updates to HMRC. All in one place, with an accountant available when you need them.

Learn more about Making Tax Digital software →  

Company tax returns: CT600 filing for limited companies

If you run a limited company , Taxfix can handle your Corporation Tax return too. A UK-accredited accountant prepares and files your CT600 directly with HMRC, so you stay compliant without the complexity.

Learn more about company tax returns →  

What Taxfix does for you: we calculate, optimise, and file your tax return

This is not software that walks you through a form and leaves you to figure out the rest. When you use Taxfix for Self Assessment , a real UK accountant takes ownership of your return from start to finish.

Here's exactly what that means:

• We calculate your tax bill – your accountant works out what you owe (or what HMRC owes you ), so you're never guessing
• We find every allowance you're entitled to – eligible expenses , reliefs, and deductions that many filers miss when going it alone
• We review your return for errors – a qualified accountant checks everything before a single figure goes to HMRC
• We file directly with HMRC – using the official HMRC gateway, the same route used by all regulated UK accountants
• We support you afterwards – questions about your return, HMRC letters, or year-round tax planning, depending on your plan
  

The result: a return you can trust, filed without the stress. 

Tell us about your tax situation

Answer a short questionnaire in plain English. No documents needed at this stage. Your answers help us match you with the right accountant and build your personalised document checklist. Most people are done in around 10 minutes.

Choose your level of support

All Taxfix plans include the same core service: a UK-accredited accountant prepares and files your Self Assessment tax return . Where the plans differ is in the level of ongoing support you receive. 

• Prepared & Filed Accurately covers the filing itself, plus messaging with your accountant during the process.
• Filed, Optimised & Protected adds deduction and relief optimisation, a tax-planning call, and full HMRC protection (audit and letter support).
• Filed + a Year-Round Tax Partner goes further: HMRC agent representation, year-round accountant access, and an annual tax efficiency review.

Get matched with your UK accountant

You're matched with a real UK-accredited accountant – ACCA, ICAEW, or AAT qualified, with at least five years' experience. Not an AI. Not an offshore team. They'll introduce themselves, review your answers, and send you a personalised document checklist. You can message them directly at any point.

We aim to match you with the same accountant every year, so they get to know your situation over time.

Upload your documents

Your accountant sends a personalised checklist based on your situation. A PAYE high earner might just need a P60 . A sole trader will need invoices and bank statements. A landlord will need rental income records and receipts.

Everything is uploaded securely through the platform. Your accountant can also pull P60 data directly from HMRC with your permission.£

See the full document checklist →

Your accountant prepares your return

Your accountant completes your HMRC forms, identifies every eligible expense and relief , calculates your tax bill or refund, and checks everything for errors . This typically takes around two business days once they have all your documents.

Review and approve

You receive a plain-English summary of your return before anything goes to HMRC. Check the figures, ask questions, request changes. Nothing is submitted until you approve it.

We file with HMRC

Your accountant submits your return via the official HMRC gateway . You'll get a confirmation email with your submission receipt. HMRC typically takes 6–12 weeks to process returns and issue any rebate .

Ongoing support

Filing isn't the end. On Prepared & Filed Accurately, your accountant stays available to answer questions about your return until it's filed, and will resume contact for your next filing. With Filed, Optimised & Protected, they'll also review any HMRC letters you receive and provide investigation coverage if HMRC opens an enquiry. On Filed + a Year-Round Tax Partner, Taxfix is registered as your HMRC agent, so HMRC contacts us directly rather than you, and you have year-round access to your accountant plus the option to book tax planning calls throughout the year.

There's no single answer. Timing depends on how quickly you complete the questionnaire, how soon you upload your documents, and how complex your tax situation is. That said, here's a realistic picture of the journey:

• Questionnaire: 10–15 minutes for most people
• Document upload: varies – you go at your own pace
• Accountant preparation: around two business days from when your accountant confirms they have everything
• Your review: as quick or as considered as you like – there's no rush to approve
• HMRC processing: 6–12 weeks after filing (this is HMRC's own timeline, outside our control)

The documents you need to provide depend on your income sources and personal tax situation. Your accountant will send you a personalised checklist after reviewing your questionnaire – but here are some common examples:

• PAYE employee: P60, P11D (if applicable), details of any benefits in kind
• Self-employed / sole trader: invoices, bank statements, records of allowable business expenses , Making Tax Digital software export if applicable
• Landlord: rental income records, mortgage interest statements, receipts for repairs and maintenance , letting agent statements
• Investor: records of dividends received, capital gains calculations , investment account statements
• Expat or non-domiciled: details of overseas income, residency status, remittance records if relevant

HMRC's free online filing is a reasonable option if your tax affairs are straightforward and you're confident doing it yourself. A traditional high-street accountant can provide a similar service to Taxfix, but typically at a higher price point and with slower turnaround times. Taxfix gives you the expertise and accountability of a real, accredited accountant, at a transparent price, delivered entirely online. No DIY guesswork, no inflated fees.

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