How to File and Pay Your VAT Return in the UK
What a VAT return actually is
A VAT return is the report you send to HMRC summarising the VAT side of your trading for a set period — normally a calendar quarter. It sets the VAT you have charged customers (output VAT) against the VAT you have paid on business purchases (input VAT). The difference is either the amount you owe HMRC or the amount HMRC owes you. The return is made up of nine boxes, but in practice your software fills these in from your records.
Most businesses file quarterly. A minority file monthly — often those who regularly reclaim VAT — and some use the Annual Accounting Scheme and file once a year.
Who has to file — and why software is now compulsory
Every VAT-registered business in the UK has to file VAT returns, regardless of size or turnover. Since the rollout of Making Tax Digital (MTD) was completed, there is no longer any exemption based on how small you are.
In practical terms this means three things: you must keep your VAT records digitally, you must use MTD-compatible software, and that software must send the return to HMRC through a direct digital link. The old option of typing figures straight into the HMRC website has closed for VAT. Anyone registering for VAT now is signed up to MTD automatically.
How to file your VAT return, step by step
Once you are set up, the process is the same each quarter:
Record everything digitally as you go — sales invoices, purchase invoices, credit notes and the VAT rate on each.
Connect your software to HMRC using your Government Gateway user ID, linked to your VAT registration number.
Let the software calculate the nine boxes from your records.
Check the figures before you submit — especially that you have captured all the input VAT you are entitled to reclaim.
Submit and keep the confirmation. Your software receives a receipt from HMRC; save the reference.
VAT return deadlines
For most businesses the deadline to both submit the return and pay is one calendar month and seven days after the end of the VAT period.
If you use the Annual Accounting Scheme the rhythm is different: you make advance payments through the year and file a single return, with the balance due two months after your accounting year ends.
One point that catches people out: if the deadline falls on a weekend or bank holiday, the money generally needs to reach HMRC by the last working day before — unless you pay by a same-day method such as Faster Payments.
How to pay your VAT online
You pay HMRC electronically. The main options differ mainly in how long they take to clear:
Faster Payments (online or mobile banking) — usually same or next day, including weekends.
CHAPS — same working day, though your bank may charge.
Bacs — allow three working days.
Direct Debit — collected automatically a few working days after your deadline; set it up at least three working days before you file.
Debit or corporate credit card — note that personal credit cards are not accepted, and corporate cards carry a fee.
Whatever method you choose, use your 9-digit VAT registration number as the payment reference, with no spaces, so HMRC can match the money to your account. The payment must clear by the deadline, not merely be started on it.
Correcting a mistake
If you spot an error after submitting, the fix depends on its size. A net error below £10,000 — or below 1% of your Box 6 sales figure, up to a £50,000 cap — can usually be corrected on your next return. Larger errors have to be reported separately to HMRC using form VAT652.
What happens if you are late
Two separate penalty systems apply, and it is worth understanding that filing late and paying late are punished differently.
A practical safeguard: if you cannot pay, contacting HMRC to agree a Time to Pay arrangement before the penalty stages begin can prevent the late-payment penalties entirely.
Common mistakes to avoid
Leaving filing to the deadline and being caught out by a slow payment method.
Assuming you can still type figures into the HMRC website — for VAT, that route is closed.
Paying the VAT but forgetting to file the return (or vice versa), so HMRC cannot reconcile the two.
Forgetting to account for VAT on certain imported goods or services under the reverse charge.
Not reclaiming all the input VAT you are entitled to — review your purchases every quarter.
Not sure whether you need to be VAT-registered in the first place? Read our guide: VAT registration and the £90,000 threshold: when and how to register.
FAQ:
How often do I have to file a VAT return?
Most businesses file quarterly. Some file monthly, and businesses on the Annual Accounting Scheme file a single return each year.
Can I still submit my VAT return on the HMRC website?
No. For VAT you must now use MTD-compatible software that sends the return to HMRC through a digital link. Typing figures straight into the HMRC website is no longer an option.
When do I have to pay my VAT?
For most businesses the payment deadline is the same as the filing deadline — one calendar month and seven days after the end of your VAT period. The money must clear in HMRC's account by that date.
What happens if I file or pay late?
Late returns add penalty points, and at the threshold (four points for quarterly filers) you receive a £200 penalty. Late payment is charged as a percentage of the outstanding VAT — 3% at day 15, a further 3% at day 30, then a daily penalty from day 31 — plus interest.
How do I correct a mistake on a return I have already submitted?
A net error below £10,000 (or below 1% of your Box 6 figure, up to £50,000) can usually be corrected on your next return. Larger errors must be reported to HMRC separately using form VAT652.
Do I still need to file if I have nothing to pay?
Yes. You must submit your return on time even if it is a nil return or a repayment return; a missed deadline still counts.
