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Calculators

Work out company car tax benefits, VAT, gross profit, inheritance tax liability and much more…

Your business

Handy calculators – including VAT, profit, company car and fuel benefit-in-kind and more…

Your money

Including payslip checker, loans and savings and stamp duty.

08 Jan 2026

HMRC app usage surged in 2025

Use of the HMRC app surged last year as millions of users downloaded it for the first time, according to the tax authority's figures.

07 Jan 2026

More clouds gathering over business confidence

Confidence among firms has continued to weaken, with tax remaining the biggest concern, according to the British Chambers of Commerce (BCC).

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Keller & Co. is a trading style of Keller Accountancy Services Limited Registered in England and Wales No 4329241.

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