Tax & Finance
Tax, NI & forecasting.
Work out UK income tax and National Insurance, and plan ahead for freelance taxes — all with current rates.
PAYE Calculator UK 2026/27
Income tax due on your salary with personal allowance and bands.
OpenUK National Insurance Calculator 2026/27
Employee Class 1 NI across annual, monthly, and weekly periods.
OpenFreelance Tax Calculator
Forecast taxes and plan quarterly payments with ease.
OpenSelf-Employment Tax Calculator (1099)
Estimate 1099 self-employment and income tax, plus your quarterly set-aside.
OpenQuarterly Estimated Tax Calculator
Plan your four IRS estimated payments and stay clear of penalties.
Open1099 vs W-2 Calculator
Compare contractor vs employee take-home and the rate to match a salary.
OpenSalaried vs Consultant Calculator (44ADA)
Compare salary vs 44ADA consultant take-home where only 50% of receipts is taxed.
OpenFreiberufler vs Gewerbe Calculator
See the real trade-tax cost of being a Gewerbe vs Freiberufler at your Hebesatz.
OpenSole Trader vs Limited Company Calculator
Find the profit where incorporating beats sole-trader tax, with dividends and corp tax.
OpenKleinunternehmer §19 Checker
Check if you qualify for the German small-business VAT exemption under the 2025 rules.
OpenBAS & GST Calculator
Quarterly GST collected, credits, net payable, and PAYG for your BAS.
OpenTax Set-Aside Calculator
How much to set aside per invoice and your tax payment dates, by country.
OpenFAQ
Common questions about the tax & finance.
What's the difference between PAYE and National Insurance?
PAYE is income tax collected from your wages. National Insurance is a separate contribution with its own thresholds that funds state benefits.
Which tax year do the UK tools use?
The PAYE and National Insurance calculators use the 2026/27 UK tax year rates and thresholds.
Do these tools store my data?
No. Everything is calculated locally in your browser and nothing is saved or transmitted.