Frequently Asked Questions

No. Official institutions publish the reference rates. FXProof packages a supported source, selected date, rate context, signed proof, document id, payload hash, and verification details into a document you can keep and share. View the supported official sources.

No. A bank statement, card record, or payment-provider record should show the rate applied to a real transaction. FXProof documents supported official reference rates, which may be used for accounting, tax, customs, policy, or review purposes. See when each kind of rate is relevant.

Yes, when a supported official reference rate is the right input for that record. Keep the proof with the calculation, workpaper, schedule, invoice, or entry that used the rate. FXProof documents the source, date, rate context, and verification details; it does not choose the accounting or tax treatment. See the accounting use case.

Yes. The recipient can inspect the embedded digital signature and use the document id and payload hash shown in the PDF on the public check page. They do not need access to your account. A successful check confirms matching FXProof proof data; it does not guarantee acceptance. Check a proof document.

Yes, when the supported dataset and date are inside your archive window and the proof bundle for that date is ready. Rate availability and proof readiness are separate. Read the historical proof guide.

The account search can show nearby available dates when the selected dataset has no rate for that day. Use a different date only when it fits the rule, policy, or instruction governing your record. FXProof does not choose the substitute date for you.

Yes. A solo founder, freelancer, consultant, or one-person company can keep a proof with an occasional invoice, expense, payment, or year-end accountant file. You do not need an in-house finance team or regular monthly use. Read the small-business guide.

It may be enough for some recipients, and it can provide useful source context. A signed FXProof document adds a consistent record of the selected source, date, and rate, plus a digital signature and public verification details. The recipient still decides what evidence it accepts. View a proof sample.

Yes. Keep the signed proof with the invoice, expense claim, reimbursement record, accounting entry, or calculation that used the official reference rate. Keep the underlying receipt, transaction record, and business explanation as well. See the expense example.

Start with the number of new proof bundles you expect to open and how far back you need to search. Searching does not use proof quota. Opening a new ready bundle uses one unit; reopening it or downloading its files again does not. Compare current plans and limits.

No. FXProof provides a signed, source-attributed proof and a verification path. A tax authority, auditor, court, customer, or other recipient may apply its own evidence rules. Check those requirements before relying on any document for a specific purpose.

No. The document id and payload hash are shown in the signed PDF, and the recipient can enter them on the public check page. The sender's account, proof quota, and other saved documents remain private.

Yes. Keep the proof with the calculation, correspondence, control record, claim, or review file that used the selected official reference rate. The proof preserves dated evidence; it does not decide the policy conclusion, contract interpretation, liability, or dispute outcome. Read the dispute-support guide.