Invoice, estimate or proof of payment: what does each prove?
Three familiar financial documents answer different questions in a claim file, and none automatically replaces the others.
An estimate proposes a price. An invoice records an amount charged. Proof of payment shows that money moved. Treating these records as interchangeable can leave a claimed amount only partly supported.
An estimate looks forward
It identifies proposed work, quantities, rates and validity. Check that the supplier, damaged item and scope align with the loss description. A later revised estimate should not sit beside the first without a note explaining which version governs.
An invoice records a charge
An invoice may establish that work or goods were billed, but it does not by itself prove completion or payment. Confirm dates, line items, tax, credits and links to the claimed property. Duplicate invoice numbers or round-sum transfers deserve explanation, not an automatic adverse conclusion.
Payment evidence closes a different gap
Bank records, receipts and remittance advice can connect an invoice to an actual payment. Redact unrelated transactions, while leaving the account holder, date, payee reference and amount visible. If only a deposit was paid, the loss schedule should not describe the entire invoice as settled.