Services Who We Serve Areas About Pricing Insights Contact 📞 020 3376 0933 Book a free 20-min call

Home › Calculators › Self Assessment Fee Calculator

Fee calculator · 2026/27

Self Assessment fee estimator.

Answer a few quick questions and get an indicative price range for your UK Self Assessment tax return. Estimate based on a standard 12-month tax year. Not binding until engagement letter is signed.

Indicative pricing only. These estimates are subject to our review and are not binding until an engagement letter is signed. Final fees confirmed in writing after a 20-minute call. Complex circumstances, short tax-year situations, or mid-year onboarding may attract additional fees.

Tell us about your situation

Tick all that you'll need to report.
If yes, the Personal Allowance is tapered (the "60% trap").
Tick any that apply — some need specialist tax advice from our sister firm The Tax Lead.

Your estimate

Tick the boxes that apply on the left, and your indicative fee range will appear here.

Estimate is based on a standard 12-month tax year. Subject to our review — not binding until engagement letter is signed.

Running a limited company? For limited company services (bookkeeping, payroll, VAT, year-end accounts), try our Limited Company Monthly Fee Builder →

Why work with Fernside

Local accountants who actually know your area.

Founded by Fahmina Jahan MIAB, Fernside Accounting works with sole traders, freelancers, landlords and micro businesses across NE London and Essex. Transparent monthly pricing, year-round support, MTD-ready software, and a free 20-minute call to discuss your situation before you commit to anything.

IAB Qualified ICO Registered MTD Ready