TaxUK 2025/26 tax year
Self Assessment Tax Calculator
Estimate the income tax and Class 4 National Insurance owed on your self-employed profits for the 2025/26 UK tax year.
Your inputs
£
£50,000
£8,000
£0
Total tax due
£0
Net profit
£0
Effective rate
0.00%
Breakdown
Taxable profit
£42,000
Income tax
£5,886
Class 4 NIC
£1,766
Net profit
£34,348Income tax
£5,886NIC
£1,766