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Find out what benefits you could get, how much you could get and how to claim
Find and use tools and calculators that will help you work out your tax.
Use these calculators and tax tables to check payroll tax, National Insurance contributions and student loan deductions if you're an employer.
The MacKay Carbon Calculator provides a model of the UK energy system that allows you to explore pathways to decarbonisation, including net zero by 2050.
The 2050 Calculator approach is being adapted and developed further by teams outside of the UK.
Use this calculator to work out employee National Insurance contributions for the current tax year, if you're an employee, employer, or a software developer.
The Global Calculator is an open-source model of the world’s energy, land and food systems that allows you to design your own version of the future up to 2050 and see the implications for the climate.
Find out how much you need to put aside for your Self Assessment tax bill if you're self-employed by using HM Revenue and Customs' (HMRC's) self-employed tax calculator.
Calculate nutrient budgets for developments in the catchment of River Avon SAC.
Statutory Sick Pay (SSP) calculator - calculate SSP for an employee
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