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
Company Deadline Finder
Type your company name or number and see every Companies House and HMRC deadline, with countdowns
Try it freeDo I Need to Register for Self Assessment?
Check if you need to register, and count down to the 5 October deadline
Try it freeVAT Threshold Tracker
Track your rolling 12-month turnover against the £90,000 VAT threshold
Try it freeSole Trader vs Limited Company Calculator
Compare your take-home as a sole trader and as a limited company for 2026-27
Try it freeSalary 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 freeMaking Tax Digital Checker
Find out if MTD for VAT or Income Tax applies to you, and from when
Try it freeMTD ITSA Book Triage
Paste your client book, get a phased MTD for Income Tax plan: who's mandated now, April 2027, April 2028
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
Deadlines & Checkers
Every company and tax deadline, with live countdowns
Company Deadline Finder
Type your company name or number and see every Companies House and HMRC deadline, with countdowns
Do I Need to Register for Self Assessment?
Check if you need to register, and count down to the 5 October deadline
CT600 Deadline Calculator
Corporation Tax payment and filing dates for any accounting period, now HMRC's free filing service has closed
VAT Threshold Tracker
Track your rolling 12-month turnover against the £90,000 VAT threshold
Strike-off Notice Countdown
Got a First Gazette notice? See how long you have to object and how to fix it
SA302 Mortgage Pack Builder
The SA302s, tax year overviews and accounts your mortgage lender will ask for
HMRC Payment Plan Finder
Can't pay a tax bill? Find the right HMRC payment plan and estimate the interest
Tax Calculators
Calculate corporation tax, dividends, VAT, and more
Sole Trader vs Limited Company Calculator
Compare your take-home as a sole trader and as a limited company for 2026-27
Section 455 Calculator
Work out s455 tax on an overdrawn director's loan and the date to repay by
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
MTD ITSA Book Triage
Paste your client book, get a phased MTD for Income Tax plan: who's mandated now, April 2027, April 2028
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?
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