Is the VAT Flat Rate Scheme worth it?
The VAT Flat Rate Scheme can be worth it for some small businesses, but it is not automatically cheaper than standard VAT accounting. It mainly simplifies how VAT is calculated. Whether it saves money depends on your flat-rate percentage, how much VAT you charge customers, how much VAT you pay on purchases, and whether the limited cost trader rule applies.
GOV.UK’s VAT Flat Rate Scheme overview explains that businesses using the scheme pay a fixed rate of VAT to HMRC and usually keep the difference between what they charge customers and what they pay to HMRC.
Merranti’s Flat Rate Scheme guide for 2025/26 is a useful starting point because it explains why the scheme is no longer an automatic win for many businesses, especially where the limited cost trader rule applies.
How the Flat Rate Scheme works
Under standard VAT accounting, you usually pay HMRC the difference between VAT charged on sales and VAT paid on purchases.
Under the Flat Rate Scheme, you still charge VAT to customers in the normal way, but you pay HMRC a fixed percentage of your VAT-inclusive turnover. GOV.UK explains this in work out your flat rate.
For example, if you invoice a customer £1,000 plus £200 VAT, the customer pays £1,200. If your flat rate is 12%, your VAT payment to HMRC would be 12% of £1,200, which is £144.
That can feel simpler than analysing VAT on every purchase, but simplicity does not always mean tax efficiency.
Merranti’s VAT rates guide is useful here because businesses still need to charge the correct VAT rate to customers, even if they use the Flat Rate Scheme.
Who can join the Flat Rate Scheme?
You can usually join the Flat Rate Scheme if you are VAT registered and expect your VAT taxable turnover to be £150,000 or less excluding VAT in the next 12 months.
GOV.UK explains the joining conditions in who can join the Flat Rate Scheme. GOV.UK’s wider VAT thresholds guide also lists the Flat Rate Scheme joining threshold and leaving threshold.
This means the scheme is aimed at smaller VAT-registered businesses. It may be relevant for consultants, contractors, small agencies, trades, freelancers, professional service businesses and small retailers.
Merranti’s VAT registration guide is a useful related page if you are not yet VAT registered but are approaching the registration threshold. Merranti’s VAT threshold guide also explains how the rolling threshold catches businesses out.
The 1% first-year discount
One reason the Flat Rate Scheme can look attractive is the first-year discount.
GOV.UK’s work out your flat rate guidance says you get a 1% discount if you are in your first year as a VAT-registered business.
This can help new VAT-registered businesses during the first year, but it should not be the only reason to join. Once the discount ends, the scheme may become less attractive.
Merranti’s pre-registration VAT guide is relevant for newly VAT-registered businesses because the first VAT return may also include historic VAT recovery claims. That needs to be reviewed separately from whether the Flat Rate Scheme is suitable.
The limited cost trader rule
The limited cost trader rule is the main reason the Flat Rate Scheme is less attractive for many service businesses.
GOV.UK’s work out your flat rate guidance says you are classed as a limited cost business if your goods cost less than either 2% of your turnover or £1,000 a year, where your costs are more than 2%. If you are a limited cost business, you use a flat rate of 16.5%.
That 16.5% rate can remove much of the financial advantage of the scheme.
This often affects consultants, contractors, IT workers, designers, bookkeepers, advisers and other service businesses that do not buy many physical goods. Software, rent, phone bills, subcontractors and professional fees may not all count as “goods” for the limited cost trader test.
Merranti’s Flat Rate Scheme guide explains why businesses with low goods costs need to calculate the result before joining or staying on the scheme.
You usually cannot reclaim VAT on purchases
A major trade-off under the Flat Rate Scheme is that you usually cannot reclaim VAT on purchases.
GOV.UK’s Flat Rate Scheme overview says businesses using the scheme cannot reclaim VAT on purchases, except for certain capital assets over £2,000.
This can make the scheme poor value where the business has significant VATable costs, such as equipment, stock, tools, vehicles, software, subcontractor costs or professional services.
Merranti’s business expense guide is useful because a cost can be allowable for profit tax purposes even if the VAT cannot be reclaimed under the Flat Rate Scheme. Those are separate questions.
Merranti’s company vehicles and tax guide is also relevant where a VAT-registered company is considering vehicles, because VAT recovery on cars and vans has its own restrictions.
When the Flat Rate Scheme may work well
The Flat Rate Scheme may work well where:
- the business has low VATable costs
- the business is not a limited cost trader
- the flat-rate percentage is favourable
- customers are VAT registered and can recover VAT
- admin simplicity is valuable
- the business is in its first year of VAT registration and benefits from the 1% discount
- the business has predictable sales and few purchase VAT claims
It may be especially useful for some businesses where the industry percentage is low and input VAT is modest.
However, this needs calculation. You should compare standard VAT accounting with the Flat Rate Scheme using actual turnover, VATable costs and the correct flat-rate category.
Merranti’s VAT rates guide and VAT registration guide are useful background if you are still getting clear on VAT basics before choosing a scheme.
When the Flat Rate Scheme may cost more
The Flat Rate Scheme may cost more where:
- you are a limited cost trader
- you buy significant goods or equipment
- you have high VATable expenses
- you regularly buy stock
- you have large subcontractor or supplier costs
- you are planning a major capital purchase
- your flat-rate category is high
- your sales include mixed VAT rates
- you could recover more VAT under standard accounting
For example, a business buying substantial equipment may be worse off if it cannot reclaim input VAT under the scheme, unless the capital asset exception applies.
Merranti’s pre-registration VAT guide is relevant if the business is newly registered and has historic purchases to review. Merranti’s accounting records guide is also useful because VAT claims and scheme comparisons depend on accurate records.
Flat Rate Scheme and other VAT schemes
The Flat Rate Scheme is not the only VAT scheme available.
GOV.UK’s VAT schemes guide explains that eligible businesses may also consider schemes such as Annual Accounting, Cash Accounting, retail schemes and margin schemes.
The Flat Rate Scheme cannot be used with every other VAT scheme. GOV.UK’s who can join the Flat Rate Scheme guidance says you cannot use the scheme with the Cash Accounting Scheme, although the Flat Rate Scheme has its own cash-based method for calculating turnover.
If cash flow is the main issue, Cash Accounting may be worth reviewing. GOV.UK’s VAT Cash Accounting Scheme guidance explains that eligible businesses account for VAT when customers pay, rather than when invoices are issued.
Merranti’s VAT registration guide can help identify whether the issue is scheme choice, registration timing, threshold monitoring or first-return setup.
When must you leave the Flat Rate Scheme?
You must leave the Flat Rate Scheme if you are no longer eligible.
GOV.UK’s if your circumstances change guidance says you must leave if your turnover in the last 12 months was more than £230,000 including VAT on the anniversary of joining, or if you expect it to be more than £230,000 including VAT in the next 12 months. You must also leave if you expect total income in the next 30 days alone to be more than £230,000 including VAT.
GOV.UK’s VAT thresholds guide also lists the Flat Rate Scheme leaving threshold.
Merranti’s Flat Rate Scheme guide is relevant if you are not forced to leave but want to review whether staying on the scheme still makes sense.
Construction businesses and reverse charge VAT
Construction businesses need extra care before using the Flat Rate Scheme.
CIS and VAT reverse charge rules can make VAT accounting more complex. GOV.UK’s domestic reverse charge guidance for building and construction services explains when reverse charge VAT applies.
Merranti’s VAT reverse charge for construction guide is useful for builders, subcontractors and property businesses. Merranti’s construction industry tax FAQ also explains how CIS, VAT, business structure and cash flow interact.
If a construction business is affected by reverse charge VAT, the Flat Rate Scheme should be reviewed carefully rather than adopted automatically.
Common Flat Rate Scheme mistakes
The first mistake is joining for simplicity without doing the calculation. A simple scheme can still cost more.
The second mistake is ignoring the limited cost trader rule. Many service businesses are caught by the 16.5% rate.
The third mistake is forgetting that purchase VAT usually cannot be reclaimed. This is especially important before buying equipment, stock or vehicles.
The fourth mistake is using the wrong flat-rate percentage. GOV.UK’s flat-rate percentage table should be checked before filing.
The fifth mistake is staying on the scheme after the business has changed. Higher costs, new staff, more equipment, different sales or turnover growth can change the answer.
Merranti’s Flat Rate Scheme guide, VAT threshold guide, different VAT rates guide and business expense guide cover the main connected issues.
Speak to Merranti before joining or leaving
The VAT Flat Rate Scheme can be useful, but only where the numbers support it. It should not be chosen just because it sounds easier.
A proper review should compare Flat Rate Scheme VAT with standard VAT accounting, check the limited cost trader rule, review the business category, consider upcoming purchases, and confirm whether another VAT scheme would be better.
Merranti’s Flat Rate Scheme guide, VAT registration guide, VAT threshold guide, pre-registration VAT guide, VAT rates guide and accounting records guide are useful starting points.
If you are unsure whether to join, stay on or leave the VAT Flat Rate Scheme, contact Merranti Accounting before your next VAT return so the calculation can be reviewed properly.
What is the VAT Flat Rate Scheme?
The VAT Flat Rate Scheme is a simplified VAT scheme where you pay HMRC a fixed percentage of your VAT-inclusive turnover. GOV.UK explains the scheme in its VAT Flat Rate Scheme overview.
Who can join the Flat Rate Scheme?
You can usually join if you are VAT registered and expect VAT taxable turnover of £150,000 or less excluding VAT in the next 12 months. GOV.UK explains this in who can join the VAT Flat Rate Scheme.
What is the limited cost trader rule?
If you spend a small amount on goods, you may be classed as a limited cost business and need to use the higher 16.5% flat rate. GOV.UK explains this in work out your flat rate.
Can I reclaim VAT on purchases under the Flat Rate Scheme?
Usually not, except for certain capital assets over £2,000. GOV.UK explains this in the Flat Rate Scheme overview.
When must I leave the Flat Rate Scheme?
You must usually leave if you are no longer eligible, or if your turnover is more than £230,000 including VAT under the relevant tests. GOV.UK explains this in if your circumstances change.
