salary-calc

Client-side salary and tax calculator

Language
TypeScript
License
Proprietary
Category
Web App
Open App

A salary and tax calculator that shows where your money goes — taxes, pension, medical, employer costs — across every timeframe. Supports 10 countries (with subdivisions for the US, Canada, Spain, and UK) and historical tax data back to 2010. Everything runs in the browser with no data stored or transmitted.

Features

01

Multi-region support — UK (+ England, Scotland), Ireland, USA (federal + all 50 states + DC), Canada (federal + 13 provinces/territories), Australia, New Zealand, France, Germany, Spain (national + 17 autonomous communities), Japan

02

Historical tax data from 2010 onwards

03

Flexible input — enter any combination of payslip data (gross, net, deductions)

04

Comprehensive breakdowns — taxes, pension, medical, employer costs across multiple timeframes

05

What-if comparison — multiple parallel scenarios side-by-side or as a comparison table

06

Timeline mode — cumulative PAYE computation across the tax year

07

Bookmarkable URLs — all calculator inputs serialized to URL for sharing/saving scenarios

08

Offline DuckDB data pipeline compiles tax rules into static JSON bundles

09

Fully client-side — no server, no accounts, no tracking