Tax Calculators & Business Tools
Free calculators built for UK limited company directors. Calculate tax, optimize your pay structure, and plan your business finances.
Most Popular
Salary vs Dividends Calculator
Find the optimal salary and dividend split to minimize your tax bill as a UK director
Try it freeDirector Pay Calculator
Calculate the most tax-efficient way to pay yourself from your limited company
Try it freeVAT Calculator
Add or remove VAT from any amount. Calculate net, gross, and VAT values
Try it freeTake Home Pay Calculator
Calculate your net pay after tax, NI, student loans, and pension
Try it freeMileage Calculator
Calculate HMRC-approved mileage allowance payments for business travel
Try it freeIR35 Status Checker
Check if your contract falls inside or outside IR35 regulations
Try it freeSEIS/EIS Tax Relief Calculator
Calculate the income tax relief, CGT exemption, and loss relief for SEIS and EIS investments
Try it freeAll Tools & Calculators
Tax Calculators
Calculate corporation tax, dividends, VAT, and more
Salary vs Dividends Calculator
Find the optimal salary and dividend split to minimize your tax bill as a UK director
Director Pay Calculator
Calculate the most tax-efficient way to pay yourself from your limited company
Corporation Tax Calculator
Calculate your UK corporation tax liability for the current tax year
Dividend Tax Calculator
Calculate how much tax you'll pay on dividends from your company
VAT Calculator
Add or remove VAT from any amount. Calculate net, gross, and VAT values
Income Tax Calculator
Calculate your personal income tax based on salary, dividends, and other income
Capital Gains Tax Calculator
Calculate CGT on property, shares, and other assets
Crypto Tax Calculator
Calculate capital gains tax on cryptocurrency trading in the UK
Personal Finance
Take home pay, pensions, student loans, and benefits
Take Home Pay Calculator
Calculate your net pay after tax, NI, student loans, and pension
Employer NI Calculator
Calculate employer National Insurance contributions for your staff
Pension Calculator
Calculate pension contributions and tax relief for directors and employees
Student Loan Calculator
Calculate student loan repayments for Plan 1, 2, 4, and postgraduate loans
Maternity Pay Calculator
Calculate statutory maternity pay and maternity allowance
Expenses & Allowances
Mileage, company cars, equipment, and R&D credits
Mileage Calculator
Calculate HMRC-approved mileage allowance payments for business travel
Company Car Tax Calculator
Calculate benefit-in-kind tax on company cars for directors and employees
P11D Calculator
Calculate benefits in kind and Class 1A NI for your P11D submission
Annual Investment Allowance Calculator
Calculate tax relief on equipment and machinery purchases
R&D Tax Credit Calculator
Estimate your R&D tax relief claim for qualifying expenditure
Business Planning
Pricing, break-even analysis, and operational costs
Compliance Tools
IR35, employment status, and regulatory checks
Guides & Resources
Step-by-step guides for common accounting tasks
Dividends Guide
Learn how to pay dividends from your limited company tax-efficiently
Expense Claims Guide
What business expenses can you claim through your limited company
Invoicing Guide
How to create compliant invoices and manage cash flow
Payroll Guide
How to set up and run payroll for your limited company
Funding & Investment
SEIS, EIS, and investment tax relief tools
Need More Than Calculators?
AccountsOS is the AI-powered accountant for UK company directors. Chat with your books, dump receipts, and know your tax is optimized.