Guides and calculators Written for owners.

These guides are written by Crosby Enninful, an ACCA qualified accountant who works with owner-managed limited companies across Hertfordshire and London. Each one takes a single subject and walks through it properly, so you can see what applies to your company and what does not. Shorter answers to quicker questions live on the insights page.

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Every guide in one place

Everything Egbenn has published sits below, on tax, VAT, payroll, CIS and the decisions that come with growing a company. Scroll the cards, or use the filters to narrow it down by topic.

Capital gains tax property calculatorCapital gains tax property calculator for 2026/27: the tax on a residential property sale, plus the 60-day reporting rule, for company ow...Capital gains tax shares calculatorThe capital gains tax shares calculator shows the 2026/27 tax on shares and other assets you sell, after the annual exempt amount. For co...CIS guide for contractors and subcontractorsCIS guide for contractors and subcontractors: who the scheme covers, verification, deduction rates, materials, monthly returns and the Ap...Income tax calculatorIncome tax calculator for 2026/27: work out what a salary is worth after tax in England, Wales, Northern Ireland or Scotland, for limited...National Insurance calculatorThe National Insurance calculator shows employee and employer NI on a salary for 2026/27, with the employment allowance, so owners can co...Stamp duty calculatorStamp duty calculator for 2026/27: the stamp duty land tax on a home or an additional property in England and Northern Ireland, for owner...

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ACCA registered practice · In the numbers all year · Fixed monthly fee agreed first · Hertfordshire and London