VAT return preparation checklist

Before you start

This checklist assumes your company is VAT-registered and files quarterly under Making Tax Digital (MTD), which means returns are submitted through compatible software with a digital trail from record to return. Most UK limited companies on standard VAT accounting follow this pattern.

Confirm three things first: your VAT period dates and the filing deadline (usually one calendar month and seven days after the period end), your VAT scheme (standard, flat rate, cash accounting or margin), and that your bookkeeping is reconciled to the bank up to the period end. If any of those is unclear, sort it before touching the numbers. This page is educational and not a substitute for advice from your accountant on your specific scheme.

Step 1 — Reconcile and review the records

A VAT return is only as accurate as the bookkeeping behind it. Work through:

• Bank accounts reconciled to the last day of the VAT period.
• All sales invoices for the period raised and entered.
• All purchase invoices and receipts entered and matched to payments.
• Petty cash and expense claims posted.
• Credit notes (issued and received) recorded against the right period.
• No transactions sitting in suspense or unallocated accounts.

Run a transaction list for the quarter and skim it for anything that looks wrong — a £10,000 stationery bill, a duplicated invoice, a supplier paid twice. Catching these now is far cheaper than correcting a filed return later.

Step 2 — Check the VAT treatment

Errors cluster around a few recurring areas. Check each:

• Standard, reduced, zero-rated and exempt supplies coded correctly — these are not the same thing and zero-rated is not exempt.
• Reverse charge applied where it should be, including the domestic reverse charge for construction (CIS) and imported services.
• Input VAT only reclaimed where you hold a valid VAT invoice and the cost is for the business.
• Blocked items excluded — business entertainment and most cars cannot be reclaimed.
• Fuel and mileage treated under the right method (fuel scale charge or actual).
• Imports and exports handled with the correct evidence and postponed VAT accounting where used.

Step 3 — Sense-check the figures

Before submitting, stand back from the detail and ask whether the return looks right:

• Does the VAT due this quarter look broadly consistent with your sales level and last quarter?
• Is the effective VAT rate on sales close to what you would expect for your mix of supplies?
• Are there any unusually large reclaims that need a quick explanation noted on file?
• Does Box 5 (net VAT to pay or reclaim) reconcile to your VAT control account in the books?

A two-minute sanity check catches the kind of error that turns into a correction and, sometimes, a penalty. Keep a short note of anything unusual so the figure makes sense if it is ever queried.

Step 4 — File, pay and plan the cash

Submit through your MTD software, keep the confirmation, and diarise the payment so it clears by the deadline — HMRC charges interest and penalties on late payment. Set up a direct debit if you would rather not manage the date manually.

VAT is one of the most common causes of avoidable cash strain, because the money you collected is not really yours to spend. The cleanest discipline is to set VAT aside as it is collected, ideally in a separate account. If a payment quarter lands awkwardly against a slow month, a short-term working capital facility can bridge it — but planning the buffer in advance, using a cash buffer calculator, is always cheaper than reacting late.