TaxUK 2025/26 tax year
Side Hustle Tax Calculator
Earn extra alongside your day job? See how much UK tax and NI you’ll owe on side income for 2025/26.
Your inputs
£35,000
£8,000
£500
Tax on side income
£0
Net side income
£0
You keep
0.0%
Breakdown
Side profit
£7,000
Income tax
£1,400
Class 4 NI
£0