Avantax - New Accounting for a New Era
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UK accountants you can trust

UK Accounting for Small Businesses

Expert accounting, tailored to you.

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400+ clients served
Secure & ConfidentialRegistered in the UK
Izabela, Owner and Chief Accountant at Avantax
Led by Izabela15+ years of accounting expertise
aatAAT
Qualified
ICB Practice Licence crestICB Practice
Licence 17789

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SELF ASSESSMENTfrom £135LIMITED COMPANYfrom £90/monthLANDLORDfrom £135CIS SELF EMPLOYEDfrom £135COMPANY FORMATIONfrom £150HMRC PENALTY LETTERask us for priceMTDfrom £35SWITCH YOUR ACCOUNTANTfree consultation
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Trusted by UK small businesses

Real Google feedback from clients who rely on Avantax for accounting and tax support.

5.0★★★★★Verified Google reviews
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★★★★★

"Extremely good service. Avantax Ltd. is with me for last 6 years and I'm not planning to leave."

Andy BialkaGoogle review
★★★★★

"I highly recommend Avantax Ltd for anyone in need of professional and reliable accounting services. After facing challenges with my previous accountant, Avantax helped me move forward with confidence."

lukasz cierczekGoogle review
★★★★★

"Highly recommended. Professional, patient and very clear support for small business accounting."

Kamila ButkiewiczGoogle review
★★★★★

"Avantax have been our accountant for a few years now and they have helped greatly in making sure our business is running smoothly. Izabella always finds time to help."

karinaGoogle review

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A family practice, built on real accounting experience

Avantax is a family accountancy practice. Izabela continues the work and standards of her father, who was also an accountant, combining professional UK tax support with experience passed through the family.

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Izabela, Owner and Chief Accountant at Avantax
IzabelaOwner & Chief Accountant
Izabela’s father, an accountant and part of the family experience behind Avantax
Izabela’s fatherAlso an accountant. His standards and experience shaped Avantax as a family business.
2026/27 estimate

Self-employed tax calculator

Get a quick 2026/27 estimate for Income Tax and Class 4 National Insurance before you speak to us.

Quick estimateUK estimate
Estimated taxable profit£38,500
Estimated tax + NI£6,742
Estimated after tax£31,758
Income Tax£5,186
Class 4 National Insurance£1,556

UK estimate using 2026/27 GOV.UK bands. It does not include student loans, pensions, dividends, CIS deductions, payments on account or Scottish Income Tax.

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