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VAT Calculator

Quickly add VAT to your net prices or remove VAT from gross amounts. Essential for creating quotes and understanding your invoices.

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How It Works

Choose whether to add VAT to a net amount (creating a quote) or remove VAT from a gross amount (checking an invoice). Select your VAT rate and get instant results.

UK VAT Rates

  • Standard Rate (20%): Most goods and services
  • Reduced Rate (5%): Energy-saving materials, residential conversions
  • Zero Rate (0%): New residential builds, some renovations

When to Use

  • Creating quotes for clients
  • Checking supplier invoices
  • Calculating VAT returns
  • Understanding gross vs net pricing
Calculate VAT
FLFlorida Building Code

References & Sources

Standards Cited
  • State Sales Tax Codes — State and Local Sales Tax Regulations
    Sales tax rates and rules vary by state, county, and municipality; no single federal sales tax applies in North America
Formulas Used
  • Add Sales Tax (net to gross): gross = net x (1 + taxRate / 100)
    Source: Standard sales tax calculation
  • Remove Sales Tax (gross to net): net = gross / (1 + taxRate / 100)
    Source: Standard sales tax calculation
  • Tax Amount (from net): tax = net x (taxRate / 100)
    Source: Standard sales tax calculation
  • Tax Amount (from gross): tax = gross - (gross / (1 + taxRate / 100))
    Source: Standard sales tax calculation
Key Assumptions
  • NA terminology: "Sales Tax" rather than VAT; rates vary by jurisdiction (0% to ~10%+) — State sales tax codes
  • Construction materials may be taxable, exempt, or subject to use tax depending on jurisdiction — State sales tax codes
  • Some states have no sales tax (e.g. Oregon, Montana, Delaware, New Hampshire) — State sales tax codes