A bank statement is not a receipt

Your statement proves money moved. It does not prove what you bought. That difference is what costs people warranty claims and deductions.

Almost every personal finance tool is built on the assumption that the bank feed is the record. It is not. A bank feed tells you that an amount left an account on a date and names a merchant, usually badly. It tells you nothing about what you actually bought.

For most spending that is fine. Nobody needs documentary evidence of a coffee. But there is a category of purchase where the difference between "money moved" and "here is what it bought" is the difference between a successful claim and an expensive afternoon.

Where the gap actually bites

• Warranty claims. A manufacturer wants proof of purchase, which means an itemised receipt showing the product and the date — not a line saying you spent money at a retailer.
• Business expenses. Tax authorities in most jurisdictions expect the supporting document, not the payment record. A statement line is evidence of payment, not of what was purchased or why it was deductible.
• Insurance claims. After a loss, the question is what you owned and what it was worth. Statement lines from four years ago will not answer it.
• Returns and disputes. Many retailers will accept a card lookup, and many will not, particularly past thirty days or for a gift.

Why the usual fixes fail

The common answers are a photo in the camera roll, a folder in cloud storage, or an email inbox you search when something goes wrong. Each of these fails in the same way: the receipt is filed by when you took the picture, and that is the one thing you will not remember two years later.

What you remember is the money. Roughly what it cost, roughly when, and who you bought it from. Those are all properties of the transaction. So the transaction, not a date-ordered pile of images, is the correct index for the paperwork.

What "attached" should actually mean

Attaching a receipt to a transaction is a stronger claim than putting it in the right month. It means that when you find the charge, you have found the document, with no second search and no judgement call about whether this photo is the right one.

• Attached to a specific charge, not to a folder, month or category
• Findable from the transaction, because that is what you will be looking at
• Stripped of the location metadata your phone puts in every photo
• Kept for as long as the records need to exist, not until you run out of phone storage

The test is simple. Pick a charge from eighteen months ago and try to produce what it bought. However long that takes is how good your system is.

That test is the reason Everykept exists, and it is the feature the product is organised around rather than one it added later.