The monthly bank-to-receipts check: a 30-minute habit that saves your tax year
A step-by-step monthly routine for matching business bank payments to receipts, chasing gaps while they are fresh and staying ready for Making Tax Digital quarterly updates.
Most record-keeping problems are not about rules. They are about time. A missing receipt is easy to replace a week after you bought something and nearly impossible eighteen months later. A monthly check, where you match every business payment on your bank statement to a receipt, catches problems while they are still small.
This guide sets out a routine that takes about half an hour once you are in the habit, and explains why it matters more now that Making Tax Digital has started.
Why monthly?
Receipts go missing fast. Thermal till receipts fade, paper gets lost, and email confirmations disappear into inboxes. A month is short enough that you can still remember what a payment was and find the receipt.
Suppliers can still help. Most can resend an invoice or reprint a receipt from recent records. Ask about something from last year and the answer is often no.
MTD runs on quarters. If you are within Making Tax Digital for Income Tax, your software sends HMRC updates covering the year to date, with deadlines of 7 August, 7 November, 7 February and 7 May. If each month is already reconciled, a quarterly update means checking three tidy months rather than rebuilding them.
You see your numbers. Doing this monthly shows you what you are spending, what you are earning, and roughly what tax to put aside, long before 31 January.
Before you start: separate your money
The routine is far easier if business income and spending go through one account and personal spending through another. HMRC's business records guidance notes that you might be able to use either a personal or a business bank account for your business, so check with your bank which type you can use. Either way, a dedicated account means everything on its statement is a business transaction you need to explain, and nothing else.
The routine, step by step
Pick a fixed day, for example the first Saturday of each month, and block out 30 minutes.
1. Download last month's statement
Export it from your banking app as a CSV or PDF. Do the same for any business credit card or payment account you use, such as PayPal or a card reader.
2. Capture any stray receipts
Empty your wallet, van, bag and inbox of anything you have not recorded yet. Photograph paper receipts and save or forward email receipts. With Receipts Keeper this is a few minutes with your phone: each receipt is read for the supplier, date, total and VAT, and on the Business plan you can also forward receipts from Telegram.
3. Match every payment out
Go down the statement line by line. For each business payment, find the receipt or invoice with the same date (or near it) and amount, and tick it off. Watch for:
- Split payments: one receipt paid in two parts, or one payment covering several invoices.
- Foreign currency: the statement amount in pounds will differ from a receipt in another currency, so keep both.
- Refunds: a credit on the statement should match a refund receipt or credit note, and reduce the expense.
4. Match every payment in
Check that every amount received matches a sales invoice, a platform statement or a till record. Unexplained income is just as much of a problem as unexplained spending.
5. List and chase the gaps
You will usually be left with a few payments that have no receipt. For each one:
- search your email for the supplier name
- log in to the supplier's website, since many keep order histories
- ask the supplier for a copy
- if it is genuinely gone, write a note now saying what it was, why it was for the business and where the payment shows
HMRC's guidance says that if records are lost or destroyed and cannot be replaced, you must do your best to provide figures and tell HMRC if you are using estimates. A note written the same month is far more credible than a guess made the following January.
6. Flag personal and mixed items
If a personal purchase went through the business account, mark it as personal so it is not claimed. For mixed costs, such as a phone bill, record the full amount and apply your business percentage consistently. MTD guidance allows you to record the total and make an adjustment to the category total before you submit your tax return.
7. Categorise and export
Make sure each receipt has the right category or tag, using the Self Assessment categories your accountant or MTD software uses. Then export the month, or the quarter if it is quarter end, to a CSV. A CSV import counts as a digital link under HMRC's MTD digital records rules, unlike copying and pasting or retyping.
A one-page checklist
| Step | Done |
|---|---|
| Statements downloaded for every business account | ☐ |
| Stray paper and email receipts captured | ☐ |
| Every payment out matched to a receipt | ☐ |
| Every payment in matched to a sale or statement | ☐ |
| Gaps chased, or noted with an explanation | ☐ |
| Personal and mixed items flagged | ☐ |
| Categories checked and month exported | ☐ |
Common traps
- Leaving it "until it's quieter". It never is. A fixed day in the diary works better than good intentions.
- Reconciling totals, not lines. If income matches in total but one invoice is missing and another is counted twice, a totals check will not catch it.
- Deleting the evidence. Keep the statement and receipts once you have matched them. Sole traders and landlords must keep records for at least five years after the 31 January filing deadline; see how long to keep receipts.
- Assuming the receipt will still be readable. If it is on thermal paper, capture it now. Our guide to faded till receipts explains what HMRC accepts.
What you get for 30 minutes a month
Twelve short sessions a year replace one miserable weekend in January. You will claim expenses you would otherwise have missed, you will be ready for quarterly updates, and your accountant will spend less time, and charge you less, working out what happened.
Sources
- Business records if you're self-employed, GOV.UK
- Create digital records for Making Tax Digital for Income Tax, GOV.UK
- Send quarterly updates, GOV.UK
This article is general information, not tax advice. If you are unsure how to treat a transaction, check with HMRC or an accountant.