Taxation (UK) · The effect of special schemes

VAT Flat Rate Scheme: Calculation and Eligibility

Updated 11 October 2026 · Fact-checked

The flat rate scheme lets a small business pay VAT as a fixed percentage of its VAT-inclusive turnover instead of output tax less input tax. You multiply total turnover, including VAT, by the flat rate given in the question. You normally cannot reclaim input VAT. The scheme saves tax when real input VAT is low.

Understand Flat Rate Scheme for VAT

Normally a VAT-registered business works out output tax on sales, deducts input tax on purchases, and pays the difference. This needs good records of every purchase invoice. The flat rate scheme is a simplification for small businesses. You still charge VAT to customers at the usual rate (the standard rate is 20%), but you pay HMRC a fixed percentage of your turnover.

The percentage depends on the type of trade. In the exam, the rate for the business is given in the question. You do not need to memorise the table of rates. The percentage is applied to VAT-inclusive turnover. That means standard-rated sales plus the VAT on them, plus zero-rated and exempt sales. This is why the flat rate looks low (often under 15%) but is applied to a bigger figure.

The trade-off is input VAT. Under the scheme you do not reclaim input VAT on day-to-day purchases. The business keeps the difference between the VAT it charges customers and the VAT it pays HMRC. If it buys few standard-rated goods and services, it gains. If it has heavy input VAT, such as stock or materials, it loses.

To join, a business expects its taxable turnover (excluding VAT) in the next 12 months to be £150,000 or less. It must leave when its total VAT-inclusive income in the year exceeds £230,000. A business in its first year of VAT registration gets a 1% reduction in the flat rate percentage. There is also a higher rate for a limited cost trader, a business whose spending on goods is very low (the question will tell you if it applies and which rate to use).

The scheme also has one exception to the no-input-VAT rule. Input VAT can be reclaimed on a single capital asset costing £2,000 or more including VAT. The VAT on such an asset is reclaimed in the normal way and is not part of the flat rate calculation.

Key rules to remember

Flat rate VAT payable: VAT payable = VAT-inclusive turnover × flat rate %; Turnover includes standard-rated sales plus their VAT, and also zero-rated and exempt sales.
VAT-inclusive turnover for standard-rated sales: Net sales × 120% (standard rate of 20%); Gross up net sales before applying the flat rate.
First-year discount: Flat rate in first year = normal flat rate − 1%; Applies until the day before the first anniversary of VAT registration.
Joining limit: Expected taxable turnover (excluding VAT) in next 12 months ≤ £150,000; Check the limit the question gives. Do not confuse it with the £90,000 registration limit.
Leaving limit: Leave if VAT-inclusive total income in the year exceeds £230,000; The business may also leave voluntarily at any time.
Input VAT exception: Reclaim input VAT only on a single capital asset costing £2,000 or more including VAT; All other input VAT is not reclaimed.
Scheme comparison: Benefit of scheme = (output tax − input tax) − flat rate VAT; A positive answer means the scheme saves money.

How to solve Flat Rate Scheme for VAT questions

Use the same method for any flat rate scheme question, whether it asks for the VAT payable or whether the scheme is worth joining.

1Check eligibility. Compare expected taxable turnover (excluding VAT) with the joining limit. Note whether the business is leaving.
2Work out the correct flat rate. Take the rate given for the trade. Deduct 1% if the business is in its first year of VAT registration. Use the limited cost trader rate if the question says so.
3Find VAT-inclusive turnover. Multiply standard-rated net sales by 120%. Add zero-rated and exempt sales, which carry no VAT to add.
4Multiply VAT-inclusive turnover by the flat rate. This is the VAT payable to HMRC under the scheme.
5If asked for a comparison, compute VAT under standard accounting: output tax less recoverable input tax.
6Subtract to find the saving or extra cost, and say clearly which route is better.
7Add any non-numerical points the question asks for, such as the loss of input VAT recovery or the leaving rules.

Quickest way: Gross up, multiply, compare

When to use it: Use this in Section B objective test cases and short Section C parts where you are given a rate and sales figures.

Write down the flat rate and cut it by 1% only if the first year applies.
Gross up standard-rated sales by 1.2 and add other sales unchanged.
Multiply the total by the rate.
Work out standard VAT as 20% of net sales less 20% of net standard-rated purchases.
Compare the two figures and state the difference.

Common mistakes in Flat Rate Scheme for VAT

Applying the flat rate to net sales instead of VAT-inclusive turnover.
Students think of turnover as the figure in the accounts, which is normally net of VAT.
Fix: Always gross up standard-rated sales by 120% first. The flat rate is designed to work on the gross figure.
Leaving out zero-rated and exempt sales from turnover.
Students think only VAT-bearing sales matter.
Fix: All income of the business is in the turnover figure, including zero-rated and exempt supplies.
Forgetting the 1% first-year reduction, or applying it after the first year.
The date of VAT registration is easy to miss in the scenario.
Fix: Check when the business registered. Reduce the rate by 1% only in the first year of VAT registration.
Deducting normal input VAT as well as using the flat rate.
Students blend the two methods.
Fix: Under the scheme the flat rate payment replaces output tax less input tax. The only input VAT reclaimed is on a single capital item costing £2,000 or more including VAT.
Mixing up the joining limit, the leaving limit and the registration limit.
Three different VAT figures appear in the same chapter.
Fix: Joining is based on expected taxable turnover excluding VAT. Leaving is based on VAT-inclusive income. Registration is the £90,000 taxable turnover limit and is a separate rule.
Concluding the scheme always saves tax because the paperwork is simpler.
Students focus on the simplification.
Fix: Always compute both methods. A business with high input VAT or mostly zero-rated sales may pay more under the scheme.

Worked examples

Example 1

Ravi runs a consultancy that has been VAT registered for several years. His flat rate is 10%. For the year his standard-rated sales were £120,000 excluding VAT. He bought standard-rated goods and services costing £30,000 excluding VAT, all with VAT at 20%. Calculate the VAT payable under the flat rate scheme and under standard VAT accounting, and state which is better.

Show the solution

Flat rate is 10%, with no first-year reduction.
VAT-inclusive turnover = £120,000 × 120% = £1,44,000.
Flat rate VAT = £1,44,000 × 10% = £14,400.
Standard accounting: output tax = £120,000 × 20% = £24,000.
Input tax = £30,000 × 20% = £6,000.
VAT payable = £24,000 − £6,000 = £18,000.
Saving under the scheme = £18,000 − £14,400 = £3,600.

Answer: Flat rate VAT is £14,400 and standard VAT is £18,000. The flat rate scheme saves £3,600.

Example 2

Meena registered for VAT six months ago. Her trade has a flat rate of 12%. In the period she made standard-rated sales of £60,000 excluding VAT and exempt sales of £5,000. Her standard-rated purchases were £20,000 excluding VAT. Calculate her VAT under the flat rate scheme and under standard accounting, and explain the result.

Show the solution

She is in her first year of registration, so the rate is 12% − 1% = 11%.
Standard-rated sales including VAT = £60,000 × 120% = £72,000.
Add exempt sales of £5,000. VAT-inclusive turnover = £77,000.
Flat rate VAT = £77,000 × 11% = £8,470.
Standard accounting: output tax = £60,000 × 20% = £12,000.
Input tax = £20,000 × 20% = £4,000.
VAT payable = £12,000 − £4,000 = £8,000.
Difference = £8,470 − £8,000 = £470 extra under the scheme.

Answer: Flat rate VAT is £8,470 and standard VAT is £8,000. The scheme costs Meena £470 more, because her input VAT is high relative to turnover and exempt sales are included in the turnover charged at the flat rate. She should consider leaving the scheme.

Exam tips

The flat rate percentage is given in the question. Spend your time on the gross-up and the first-year adjustment, not on memorising rates.
In a comparison question always show both calculations in full, then state the difference and which is better. Section C marks go for the working shown.
In objective test cases, read for the VAT registration date and for any single large asset. These are the usual traps.
Remember the scheme is a choice for the business. A good answer says the business can leave if it becomes unfavourable.
Write the limits clearly if asked about eligibility: joining is based on expected taxable turnover excluding VAT, leaving on VAT-inclusive income.

Practice questions from The effect of special schemes

Flat Rate Scheme for VAT in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Flat Rate Scheme for VAT: frequently asked questions

How do you calculate VAT under the flat rate scheme?

Take the VAT-inclusive turnover for the period and multiply it by the flat rate for the trade. Gross up standard-rated sales by 120% and include zero-rated and exempt sales at face value. Deduct 1% from the rate in the first year of VAT registration.

What is the difference between the flat rate scheme and standard VAT accounting?

Standard accounting pays output tax less input tax. The flat rate scheme pays a fixed percentage of VAT-inclusive turnover and does not reclaim input VAT, apart from one capital item costing £2,000 or more including VAT. It reduces record keeping but may cost more or less VAT.

What is a limited cost trader?

It is a business whose spending on goods is very low compared with its turnover. It must use a higher flat rate, which removes the benefit of the scheme. In the exam the question will tell you if this applies and give the rate.

When should a business leave the flat rate scheme?

A business must leave when its VAT-inclusive income in the year exceeds £230,000. It may also leave earlier if the scheme costs it more than standard accounting, for example when it is about to buy a lot of standard-rated goods and can reclaim the input VAT.