How to File Your First VAT Return

First VAT returns aren't hard. They're just unfamiliar. Once you've done one, the rest are 20-minute jobs. Here's exactly what each box wants.

When your first return is due

When you register for VAT, HMRC sets your first VAT period. For most new registrations this is a three-month period starting from your effective date of registration. The submission and payment deadline is 1 calendar month and 7 days after the period ends.

Example: registration effective 1 April 2026. First period is 1 April – 30 June 2026. Submission and payment due 7 August 2026.

If you signed up to pay by Direct Debit, HMRC will collect the VAT 3 working days after the deadline. So payment leaves your account around 12 August in the example above.

What you need before you start

• Your VAT number (8 figures, prefixed "GB" — on your VAT registration certificate)
• Functional Compatible Software (FCS) — see our MTD for VAT guide
• Records of all sales for the period, broken down by VAT rate (standard, reduced, zero, exempt)
• Records of all purchases for the period, with VAT receipts/invoices showing the supplier's VAT number
• Adjustments: bad debt relief, fuel scale charges, partial exemption calculations (if applicable)

You cannot submit a VAT return without MTD-compatible software since April 2022 — the HMRC online portal is closed for VAT submissions. If you don't have software yet, sort that first.

The nine boxes explained

Every VAT return has the same nine boxes. Boxes 1–5 are the headline numbers HMRC uses to calculate what you owe (or are owed). Boxes 6–9 are statistical totals.

Box-by-box walkthrough for a typical first return

Box 1 — Output VAT

Sum of VAT charged on all standard-rated and reduced-rated sales in the period. Zero-rated and exempt sales do not contribute to Box 1.

If you're on the Flat Rate Scheme, Box 1 is the FRS percentage applied to your gross VAT-inclusive turnover, not the actual VAT charged.

Box 4 — Input VAT

Sum of VAT shown on valid VAT invoices for business purchases. To reclaim the VAT, you need:

• A VAT invoice from the supplier (showing supplier's VAT number, date, your name/address, description, and VAT amount)
• The expense to be wholly or mainly for business use (apportion private use)
• The expense not to be on a "blocked" item — entertainment, most cars, certain client costs

You can reclaim input VAT on costs incurred up to 4 years before registration for goods still owned, or 6 months before registration for services, provided records exist. We cover this in detail in our guide to reclaiming VAT.

Boxes 6 and 7 — Net values

Box 6 is the total of all your sales (including zero-rated and exempt) ex VAT. Box 7 is total purchases ex VAT. These are statistical only — they don't change what you owe — but HMRC uses them to spot anomalies. Wrong figures here are a common reason for follow-up enquiries.

First-return quirks

• Pre-registration purchases — your first return is the only one where you can reclaim VAT on goods bought up to 4 years before registration (still owned at registration date) and services bought up to 6 months before. Use Box 4. Document each item with the original invoice and a clear list.
• First-day stock — if you held stock with VAT paid on it before registration, that VAT is reclaimable in your first return.
• The 1% Flat Rate Scheme discount — applies in your first year of VAT registration if you've opted in to FRS.

Paying HMRC

If Box 5 is positive, you owe HMRC. Payment options:

• Direct Debit — set up via your HMRC online account. HMRC collects 3 working days after submission deadline. Best option for most.
• Faster Payments / CHAPS / Bacs — pay to HMRC's VAT account using your VAT number as the reference. Bank details on gov.uk.
• Debit/credit card — via gov.uk's pay portal. Personal debit cards are free; credit cards have a fee.
• Direct from your bank via online banking, using HMRC's sort code/account.

If Box 5 is negative (you're owed a refund), HMRC normally pays into your registered bank account within 30 days, often faster.

After you submit

You'll get a confirmation receipt from your software. HMRC will email a confirmation to your registered address. Keep your records for 6 years — HMRC can ask for them in that period.

Your next return period will already be set in your HMRC online account. The cycle continues.

Four mistakes to avoid on your first return

1. Including VAT in Box 6

Box 6 is sales excluding VAT. A surprising number of first returns inflate Box 6 by 20% by accident. Software does this automatically if you've categorised your sales correctly, but manual spreadsheet returns get this wrong constantly.

2. Reclaiming on personal expenses

That coffee with a friend, the family dinner, the holiday flights you're calling "research" — none are reclaimable. HMRC's algorithms flag patterns. If you've split business and personal and HMRC investigates, expect VAT clawback plus penalty.

3. Missing the deadline

Your first late submission is one point under the new points system. The threshold for a quarterly return is 4 points before a £200 penalty. Fall into the habit of late submissions and you'll hit £200 fines, then daily charges.

4. Forgetting to claim pre-registration VAT

This is the only return where you can reach back. We see businesses miss thousands of pounds of legitimate input VAT because they didn't realise their first return was the time to claim it.

FAQ

Can I file a VAT return manually if my software fails?

No. The HMRC online portal is closed for VAT since April 2022. If your software is broken, fix the software or use a bridging tool. The deadline doesn't move because of software issues.

What if I made a mistake on a past return?

If the net error is under £10,000 (or under 1% of Box 6 turnover, up to £50,000), you can correct it on your next return — Box 1 if you under-declared output, Box 4 if you over-claimed input, Box 6/7 if it's a netting error. Above those thresholds, notify HMRC separately on form VAT652.

Can I submit a return without paying?

Yes — submission and payment are separate processes. Late payment incurs separate penalties (2% after 15 days, then more). Always submit on time even if you can't pay; partial payment is better than nothing.

Sources & further reading

All claims verified against the following primary sources on 3 May 2026.

• HMRC – Submit your VAT Return
• VAT Notice 700: the VAT guide (Box-by-box guidance, section 3)
• VAT Notice 700/12: How to fill in and submit your VAT return
• HMRC – Pay your VAT bill