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Use these calculators and tax tables to check payroll tax, National Insurance contributions and student loan deductions if you're an employer.

ECaaS provides an API to the Home Energy Model so users can produce software, and a basic frontend so users can validate building designs.

Find out how interest is calculated and applied if you have a Plan 2 student loan, as well as previous interest rates.

Find out how interest is calculated and applied if you have a Plan 1 student loan, as well as previous interest rates.

Print your SA302 tax calculation and tax year overview if you're applying for a mortgage and need proof of earnings.

Explanation for animal owners and veterinary health professionals on how the VMD calculates adverse event incidence rates for veterinary medicines

Find out how interest is calculated and applied if you have a Plan 4 student loan, as well as previous interest rates.

Calculate how much you have to pay your furloughed employees for hours on furlough and how much you can claim back.

Find out how the VAT Capital Goods Scheme (CGS) works, the items covered by the scheme, the rules and how adjustments and disposals are affected.

Use this guidance if your payroll software or Basic PAYE tool does not calculate your employee's payments.

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