Self-Employed & Business
Calculators and tools for sole traders, freelancers, contractors and limited company directors — work out self-employment tax, National Insurance, Self Assessment payments and allowable expenses on 2026/27 UK rates.
Self-Employed & Business calculators
Profit Margin Calculator
Use our free Profit Margin Calculator to get an instant estimate.
Use calculator →Corporation Tax Calculator
This corporation tax calculator estimates what your UK limited company owes HMRC on its ta...
Use calculator →Contractor Calculator
Use our free Contractor Calculator to get an instant estimate for the 2026/27 tax year.
Use calculator →Umbrella Company Calculator
Use our free Umbrella Company Calculator to get an instant estimate for the 2026/27 tax ye...
Use calculator →Markup Calculator
This markup calculator turns a cost price and a markup percentage into a selling price, th...
Use calculator →Limited Company Tax Calculator
Use our free Limited Company Tax Calculator to get an instant estimate for the 2026/27 tax...
Use calculator →Break Even Calculator
This break even calculator tells you exactly how many units you need to sell, or how much...
Use calculator →Payroll Calculator
Use our free Payroll Calculator to get an instant estimate for the 2026/27 tax year.
Use calculator →Salary vs Dividend Calculator
Use the dividend vs salary calculator above to compare how much tax you pay taking income...
Use calculator →CIS Tax Calculator
Use our free CIS Tax Calculator to get an instant estimate for the 2026/27 tax year.
Use calculator →IR35 Status Checker
This IR35 calculator helps you check whether a contract is likely to fall inside or outsid...
Use calculator →Contractor Day Rate Calculator
Use our free Contractor Day Rate Calculator to get an instant estimate for the 2026/27 tax...
Use calculator →Late Payment Interest Calculator
This late payment interest calculator works out the statutory interest you are legally ent...
Use calculator →Flat Rate VAT Calculator
This flat rate VAT calculator works out what you would hand to HMRC under the VAT Flat Rat...
Use calculator →Capital Allowances Calculator
Use our free Capital Allowances Calculator to get an instant estimate for the 2026/27 tax...
Use calculator →R&D Tax Credit Calculator
This R&D tax credit calculator helps UK limited companies estimate the qualifying spend be...
Use calculator →Cash Flow Forecast
This cash flow forecast calculator projects your business bank balance month by month, so...
Use calculator →Profit & Loss Statement
This profit and loss calculator turns your sales, costs and overheads into a clear P&L sta...
Use calculator →Free Invoice Generator
This free invoice generator lets you create a clean, professional UK invoice and download...
Use calculator →Free Quote Generator
This free quote generator lets you build a clean, professional quotation and download it a...
Use calculator →Free Purchase Order Generator
This free purchase order generator lets you create and download a professional purchase or...
Use calculator →Free Expense Tracker
This free expense tracker lets you log every business cost, total it instantly and keep th...
Use calculator →Mileage Tracker & Claim
This mileage tracker turns your business journeys into a tax-free claim using HMRC's Appro...
Use calculator →Side Hustle Tax Calculator
Use the side hustle tax calculator above to work out the tax on income from a side project...
Use calculator →Freelancer Tax Health Score
Your freelancer tax health score is a fast way to see whether your self-employment finance...
Use calculator →Receipt Scanner (OCR)
This free receipt scanner app reads a photo or PDF of any UK receipt and pulls out the fou...
Use calculator →Bank Statement Converter (PDF to Excel)
A bank statement converter turns a PDF bank statement into a clean spreadsheet of transact...
Use calculator →MTD Income Tax Scope Checker
This Making Tax Digital scope checker tells you, in seconds, whether MTD for Income Tax ap...
Use calculator →MTD Quarterly Record Organiser
This MTD quarterly record organiser is a free, no-signup tool to keep digital records for...
Use calculator →Dividend Voucher Generator
This free dividend voucher generator creates a clean, ready-to-keep dividend voucher PDF f...
Use calculator →Payments on Account Calculator
Our payments on account calculator helps you work out whether you owe Self Assessment paym...
Use calculator →P11D Generator
Our free P11D generator creates a clear PDF listing an employee's taxable benefits in kind...
Use calculator →MTD for Income Tax Checker & Deadline Tracker
Use the checker above to see whether Making Tax Digital for Income Tax applies to you and...
Use calculator →Director's Loan Calculator
If you take money out of your company beyond your salary, dividends or expenses, it goes o...
Use calculator →PAYE vs Self-Employed Calculator
Earning the same money as a salary or as self-employed profit leaves you with different ta...
Use calculator →Self-Employed & Business tools
Run the numbers on your business
Working for yourself means wearing the finance hat too. Whether you are a sole trader, a contractor or a limited company director, our business calculators help you price work, plan for tax and take money out of your company in the most efficient way.
Limited company owners can estimate their bill with the Corporation Tax Calculator and Limited Company Tax Calculator, then decide how to pay themselves using the Salary vs Dividend Calculator. Contractors can compare working structures with the Contractor Calculator, Umbrella Company Calculator and Day Rate Calculator.
Price, profit and cash flow
Getting your pricing right is the difference between a busy business and a profitable one. The Profit Margin Calculator and Markup Calculator help you set rates that actually make money, while the Break-Even Calculator shows how much you need to sell to cover your costs.
In the construction sector? The CIS Tax Calculator works out deductions under the Construction Industry Scheme. Chasing invoices? The Late Payment Interest Calculator shows the statutory interest you are entitled to charge. Every tool is free and updated for the current tax year.
