Skip to content
HQ
CalculatorHQ
    Exclusive offers
    Business & VAT

    Business, VAT and company calculators

    Calculate VAT, corporation tax, payroll, cash flow, margins, expenses and small-business planning scenarios with UK-focused tools.

    Browse calculators

    • Annual Investment Allowance
    • Apprenticeship Levy
    • ARR per Customer
    • Break-Even
    • Business Rates Estimate
    • CAC Payback Months
    • Car Allowance vs Company Car
    • Car Fuel Benefit
    • Card Processing Fees
    • Cash Flow Gap
    • Churn Revenue Impact
    • CIS Deduction
    • CIS Labour Deduction
    • Commercial Rent (Annual)
    • Consultancy Daily Rate
    • Contractor Annual Cost
    • Contribution per Unit
    • Corp Tax Quarterly Provision
    • Corporation Tax
    • Creditor Days
    • Customer Lifetime Value
    • Debtor Days (DSO)
    • Directors Loan Benefit
    • Dividend Tax
    • Dividend vs Salary Split
    • Early Payment Discount
    • EBITDA (Rough)
    • Economic Order Quantity (EOQ)
    • Employer NI
    • Employment Allowance
    • Export Zero-Rated Sales
    • Freelancer Hourly Rate
    • Gross Margin
    • Home Office Expenses (Simplified)
    • Import Duty & VAT
    • Inventory Turnover
    • Invoice Factoring Cost
    • IR35 Day Rate
    • IR35 Pay Difference
    • Late Payment Interest (UK)
    • Lease vs Buy Asset
    • Marketing ROI
    • Markup vs Margin
    • Mileage Reclaim Total
    • MRR to ARR
    • Operating Profit Estimate
    • Overhead per Unit
    • Overtime Pay
    • P11D Benefit Tax
    • Pro-Rata Salary
    • Profit per Employee
    • Project Day Rate
    • Quote Markup Calculator
    • R&D Spend Relief (Estimate)
    • R&D Tax Relief
    • Recruitment Agency Fee
    • Reorder Point
    • Retail Price from Margin
    • Revenue per Employee
    • Reverse Charge VAT
    • Sole Trader vs Ltd
    • Stock Valuation
    • Van Benefit Charge
    • VAT Calculator
    • VAT Flat Rate Scheme
    • VAT on Purchases
    • VAT Registration Test
    • VAT Threshold
    • Wholesale Markup
    • Working Capital
    HQ
    CalculatorHQ

    Free UK finance calculators for tax, pay, property, and business. All calculations run privately in your browser.

    Estimates only — not tax or financial advice. Rules and effective periods vary by calculator; check the linked official source before relying on a result.

    Calculators

    • VAT Calculator
    • Take-Home Pay
    • Stamp Duty
    • Mortgage
    • Amazon Fees
    • Corporation Tax

    Categories

    • Personal Tax & Pay
    • Business & VAT
    • Property
    • Selling Online
    • Loans & Savings

    Company

    • About
    • Contact
    • Privacy Policy
    • Methodology & corrections
    • Exclusive Offers
    • Tide REFER200
    • Capital on Tap

    © 2026 CalculatorHQ  ·  Private  ·  Works offline after first load