UK VAT workflow
UK VAT Flat Rate Scheme workflow
The Flat Rate Scheme is a separate UK VAT topic from calculating VAT on a single invoice. Use this page to understand eligibility, sector rate checks, and the need for official confirmation before filing.
Verified 2026-07-09. Current live logic is best for standard-rate planning and visible invoice math.
VAT Calculator UK
Switch between add-VAT and reverse-VAT planning.
Invoice Tax Workflow Guide
General invoice tax order still applies: subtotal, tax, total.
Methodology
Verification rules and maintenance window.
What the Flat Rate Scheme is
The VAT Flat Rate Scheme is an optional way for smaller UK businesses to simplify VAT. Instead of adding up the VAT on every sale and reclaiming the VAT on every purchase, you charge customers the normal 20% but pay HMRC a single flat percentage of your gross turnover, set by your business sector. You keep the difference, but you generally cannot reclaim VAT on purchases except for certain capital assets.
It can save admin time and, for some businesses, a little money — but for others it costs more than standard VAT accounting. Whether it helps depends on your sector rate and how much VAT you would otherwise reclaim.
Standard-rate VAT vs. the scheme
This site's live VAT tools are built for standard-rate planning: adding VAT to a price, extracting it from a total, and showing it on an invoice. The Flat Rate Scheme is a separate accounting choice, not a different calculation on a single invoice.
Before joining, confirm your eligibility, your sector's flat rate, and the first-year discount with HMRC, because the scheme's rules and rates change and depend on your specific activity.
Frequently asked questions
Who can use the Flat Rate Scheme?
It is aimed at smaller businesses under a turnover limit set by HMRC. Eligibility and the turnover thresholds change, so confirm the current rules with HMRC before applying.
Do I still charge customers 20%?
Yes. You charge VAT to customers as normal, but you pay HMRC a flat percentage of your gross turnover instead of the usual net VAT calculation.
Is the scheme always cheaper?
No. It saves admin but can cost more than standard accounting if you would otherwise reclaim a lot of VAT on purchases. Compare both before deciding.
Compare the scheme using actual turnover and purchases
Estimate gross VAT-inclusive turnover for the same period under both methods. Under normal accounting, compare output VAT with eligible input VAT. Under the Flat Rate Scheme, apply the verified business-sector percentage and account for limited-cost-trader rules where relevant. The difference is meaningful only when both scenarios use the same sales and purchase evidence.
Review capital purchases separately because some may permit VAT recovery outside the usual restriction. Also test whether expected growth could breach an eligibility or exit threshold. A first-year discount is temporary, so a decision based only on the discounted period can misstate the longer-term cost.
Sector selection follows the business activity, not whichever published percentage is lowest. Mixed activities, unusual supplies, and a high proportion of goods require careful classification. Confirm the current percentage, turnover definition, joining date, and leaving rules directly with HMRC before changing accounting treatment. Compare at least one full representative quarter and document every excluded purchase before choosing the scheme. Retain the HMRC application or confirmation with the effective start date.