What to do about expenses with no receipt

Write down what you know, immediately, and attach it to the transaction: what was bought, why, from whom, and how you paid. A contemporaneous note is not as good as the receipt, and it is far better than a bare line on a statement — because the value of the note decays fast, and in a month you will remember nothing.

Missing receipts are inevitable at any volume. What’s avoidable is having nothing at all in their place.

Why the card statement isn’t enough by itself

A statement line proves money left your account and identifies roughly who received it. It doesn’t say what you bought or why the business needed it, and “what and why” is precisely what makes an expense a business expense rather than a payment.

That’s the gap a note fills. It doesn’t manufacture evidence — it records the context that only existed in your head and would otherwise be lost.

Reconstruct while it’s cheap

The window for reconstruction is short and closes quietly.

Same week: you remember the purchase, you can often find a secondary document, and the paper might still be in a jacket. Reconstruction is nearly free.

Same month: you remember the big ones. The eleven-pound charge is already a mystery.

At year end: you’re guessing, and guesses recorded as fact are worse than an honest blank.

This is the strongest practical argument for weekly reconciliation. Not tidiness — recoverability.

Secondary evidence worth looking for

Before writing a note from memory, check whether a document exists elsewhere. Frequently one does:

The vendor’s own record. Order history in an online account, a booking confirmation, a subscription invoice available for download. For anything bought online there is almost always a retrievable copy.

Email. Confirmations, dispatch notices, calendar invites for the meeting the meal was for. Searching your inbox for the amount or the vendor name takes seconds.

The other party. For a shared meal or a client meeting, someone else may have the slip.

Bank or app detail. Some card apps carry richer merchant information than the statement descriptor, occasionally including a location or a category.

Photos. Your camera roll around the date sometimes shows where you were, which is enough to reconstruct a travel expense with confidence.

Any of these is better than memory, and finding one takes less time than the note takes to write.

What the note should contain

Keep it short and factual. Four things:

What was purchased, concretely. “Two boxes of A4 paper”, not “office supplies”.
Why — the business purpose. “Client meeting with [name] to discuss the March project.”
Who it was from, as specifically as you can name them.
Why there’s no receipt. “Handwritten slip, not issued.” “Vending machine.” “Receipt lost.” This is not an apology; it’s part of the record, and a consistent honest reason reads very differently from a gap.

Then attach it to the transaction so the two live together, and mark the entry as documented-by-note. You want to be able to list these later — both to see how many there are and to spot patterns.

Fix the pattern, not just the instance

A run of missing receipts is a process problem wearing an instance costume. Look at where they come from:

One recurring vendor. If the same supplier’s receipts always go missing, change the channel — ask for email invoices, or set up an account that keeps order history.

One category. Parking, tolls, vending, tips, small cash purchases. These often genuinely don’t issue receipts. Handle them as a class, with a standing note format, rather than one at a time.

One person. If receipts go missing from one member of a team, the fix is making capture easier for them, not chasing them monthly.

Cash. Cash purchases are the largest single source of missing evidence, because the only record is the slip you were handed. Reducing cash spending reduces this problem structurally.

The categories that rarely produce receipts

Some expenses legitimately come with no document, and it’s worth deciding a standing approach:

Mileage and vehicle use is a log, not a receipt — date, purpose, distance. Keep it as you go; reconstructing distances later is guesswork.

Parking meters and tolls often issue nothing usable. Note them at the time; they’re small individually and add up to something material.

Tips paid in cash on top of a card payment don’t appear on the slip. Note the amount when you pay it.

Small cash purchases. If they’re frequent, that’s a signal to route them through a card.

Be conservative about what you claim

The important boundary: reconstruction means recording what you actually know. It does not mean estimating an amount you don’t remember, inventing a plausible vendor, or creating a document that looks like a receipt.

If you genuinely can’t establish what a charge was for, the correct record is that you don’t know — and that expense may simply not be one you can support. That’s a real cost of the missing receipt, and it’s smaller than the cost of a record you can’t stand behind.

The preventive version

Every missing-receipt process is damage control. The upstream fix is capture at the moment of spend, one capture route, and a weekly check against the card feed that catches gaps while they’re still fillable.

Do those three and missing receipts become a short list of things that genuinely never issued one — which is a manageable, explainable category rather than a recurring hole in your books.