Interactive Policy & Tax Tools
A suite of 15 open-source calculators based on statutory HMRC rules and ONS methodologies.
Income Tax 2024
Calculate PAYE tax and NI.
SDLT Calculator
Property transaction tax model.
Inflation Adjuster
Historical CPI adjustment tool.
Mortgage Impact
Interest rate shock calculator.
Capital Gains Tax
CGT based on income bands.
VAT Extraction
Add or extract standard VAT.
Corporation Tax
Calculate marginal relief rates.
State Pension Age
Estimate retirement age by DOB.
Student Loan (Plan 2)
Post-2012 loan repayment.
Dividend Tax
Director/shareholder extraction.
Min. Wage Checker
National Living Wage compliance.
ISA Tracker
£20k wrapper utilization.
IHT Estimator
Inheritance tax exposure.
LISA Bonus
Lifetime ISA top-up calculation.
Child Benefit Charge
High income taper calculator.