Gross versus net: what the offer letter does not tell you
When you compare job offers across countries, the headline salary can be badly misleading. A figure that looks generous in one place can shrink dramatically once income tax and mandatory social contributions come out, while a lower number elsewhere might leave you with more in hand. This calculator exists to make that comparison honest by converting a gross salary into the take-home amount you can actually spend or save.
Every supported country uses a progressive system, which means different slices of your income are taxed at different rates. The first slice is usually tax free thanks to a personal allowance or standard deduction, and each higher slice is charged at a steeper rate. That is why your effective rate, the share of your whole salary that disappears, is always lower than the top band you reach. The bracket breakdown above shows exactly how much income falls into each rate so the final number never feels like a black box.
Income tax and social contributions are not the same
Two separate deductions shrink your pay. Income tax follows the brackets described above. On top of that sit social contributions, which fund things like state pensions, health cover and unemployment insurance. In the United States these are Social Security and Medicare; in the United Kingdom it is National Insurance; in Australia it is the Medicare levy; in Canada they are CPP and EI. Some of these stop once your income passes a cap, which is why a very high earner can see their social contribution rate fall even as income tax rises.
Why pension contributions are worth modelling
Money you put into a workplace pension or retirement plan before tax lowers your taxable income, so you pay less income tax now. The contribution is still set aside rather than spent, so the tool treats it separately from take-home cash, but seeing the tax saving helps you understand the true cost of saving for retirement. Adjusting the pension field is a quick way to see how much of every extra contribution is effectively funded by tax relief.
How to use the result wisely
Use the monthly and fortnightly figures to sanity check a budget against rent, transport and everyday costs in your destination. Pair this calculator with a cost-of-living comparison so you judge offers on real purchasing power rather than gross numbers. Remember that the estimate is national only: it leaves out state and provincial taxes, niche reliefs and surcharges, and it assumes a straightforward single-filer situation. For a binding figure, run your exact salary through the official calculator linked below or speak to a qualified accountant.