Learn the calculation, understand the rule, then check the official source. Explore our practical VAT guides below.
Move the rate slider to see how VAT changes a £100 net price. £100 + £20 VAT = £120 total This slider explains the arithmetic. It does not determine the legal rate for your sale.One price. Three parts.
Flat Rate Scheme: How the Calculation Works
Understand the turnover base, rate selection and limits of a payment estimate.
Explore →Practical guideHow to Calculate VAT: Formulas and Worked Examples
Learn the arithmetic for adding VAT and extracting it from a total.
Explore →Practical guideHow to Use the VAT Calculators: A Step-by-Step Guide
Choose the correct tool, enter the right figures and understand the results.
Explore →Practical guideMaking Tax Digital for VAT: Records and Software
Understand the difference between a calculator and a VAT filing workflow.
Explore →Practical guideMonthly VAT Turnover Checklist for Small Businesses
Create a repeatable rolling 12-month review and keep supporting evidence.
Explore →Practical guideReclaiming VAT on Business Expenses: What to Check
Separate the arithmetic from the evidence and eligibility for a reclaim.
Explore →Practical guideReverse VAT vs Reverse Charge: Two Different Things
Avoid confusing a price calculation with a VAT accounting mechanism.
Explore →Practical guideStandard, Flat Rate, Cash or Annual VAT Accounting?
Compare what each approach changes before running the numbers.
Explore →Practical guideUK VAT Rates: 20%, 5% and 0% Explained
Compare the headline rates and check the treatment of a specific supply.
Explore →Practical guideVAT Annual Accounting: Payments and the Year-End Return
Understand advance payments and the annual reconciliation.
Explore →Practical guideVAT Cash Accounting: Timing and Cash Flow
See how payment timing can affect when sales and purchase VAT are accounted for.
Explore →Practical guideVAT Invoice Checklist: Details, Rates and Totals
Review the information behind an invoice calculation before sending it.
Explore →Practical guideVAT Margin Scheme Guide for Second-Hand Sales
Understand the positive-margin calculation and the records behind it.
Explore →Practical guideVAT Record Keeping: A Practical Evidence Checklist
Organise invoices, payments, calculations and submission confirmations.
Explore →Practical guideVAT Registration: Thresholds, Timing and Next Steps
Understand the two main turnover tests and what to prepare before registering.
Explore →Practical guideVAT Return Deadlines: A Practical Submission Checklist
Plan the return, payment and final confirmation as separate steps.
Explore →Practical guideWhat Is VAT? A Practical UK Introduction
Understand net prices, output VAT, input VAT and the role of a VAT return.
Explore →Practical guideZero-Rated, Exempt and Outside-Scope VAT
Learn why three transactions with no VAT added can still have different treatment.
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