Fix Your Income. Find What You're Owed.
Free UK tools to check unclaimed benefits, calculate side hustle tax, and see your real take-home pay — no sign-up needed.
Free UK Financial Tools
All calculators use official 2026/27 HMRC rates and thresholds. No sign-up, no data stored.
Why Use IncomeFix?
Trusted by thousands of UK residents to understand their finances better.
HMRC-Aligned Rates
All calculations use official 2026/27 tax rates and benefit thresholds from GOV.UK.
No Data Stored
Your information never leaves your browser. No accounts, no databases, complete privacy.
Free Forever
Every calculator is completely free. No premium tiers, no paywalls, no hidden fees.
Mobile-Friendly
Works perfectly on any device. Check your benefits or tax on the go.
Regularly Updated
Rates are updated every April when new tax year thresholds come into effect.
Self-Assessment Help
Know if you need to register for Self Assessment and when your tax return is due.
Latest Guides
Expert guides on UK benefits, tax, and personal finance.
Frequently Asked Questions
Quick answers to common questions about UK tax, benefits, and our calculators.
Is IncomeFix really free to use?▾
Yes, all our calculators and tools are completely free to use. No sign-up, no hidden fees. We are funded through advertising.
Are the tax figures accurate?▾
Our calculators use official HMRC rates and thresholds for the 2026/27 tax year. However, they provide estimates only — for official tax advice, contact HMRC or a qualified accountant.
What benefits am I entitled to in the UK?▾
It depends on your income, savings, housing situation, health, and family circumstances. Use our free benefits calculator to get a personalised estimate in under 2 minutes.
Do I need to pay tax on my side hustle?▾
If you earn more than £1,000 per year from a side hustle, you generally need to register for Self Assessment and may owe income tax and National Insurance. Use our side hustle tax calculator to see how much.
How much is the UK personal allowance in 2026/27?▾
The personal allowance for the 2026/27 tax year is £12,570. This means you do not pay income tax on the first £12,570 you earn. The allowance is tapered for incomes above £100,000.
What is the 60% tax trap?▾
If you earn between £100,000 and £125,140, you lose £1 of personal allowance for every £2 earned above £100,000. This creates an effective marginal tax rate of around 60%. Use our 60% tax trap calculator to understand the impact and see how salary sacrifice can help.