From the first question to reviewer follow-up
How do I document the exchange rate used for an invoice or declaration?
Attach the Signed FXProof Proof PDF to the invoice file, declaration, calculation, or VAT workpaper that used the rate. The PDF already contains its source/date/rate context, document id, payload hash, digital signature, and verification information.
Keep the transaction details and procedure-specific explanation in the business file. FXProof supplies the exchange-rate proof document.
What can a reviewer inspect?
The signed PDF gives the reviewer one exchange-rate evidence artifact to inspect alongside the transaction record.
- Source name and source date.
- Rate context used in the customs or VAT file.
- Embedded digital signature.
- Document id and payload hash shown in the PDF for public verification.
The applicable rule remains your responsibility
Your team remains responsible for selecting the applicable source, date, customs or VAT rule, and filing context. FXProof does not guarantee acceptance by an authority or other recipient.
Import/export file
Keep exchange-rate proof with the calculation or declaration that used the rate.
View a proof sampleSource requirement
Use source pages when the file expects a specific supported official source.
View sourcesThe signed document
See which proof and verification fields stay inside the PDF.
Read signed PDF guideQuestions
What proof do I need for the exchange rate used on an invoice?
Attach the Signed FXProof Proof PDF to the invoice or transaction file that used the rate. Its FXProof proof and verification fields are already inside the document.
How do I document the exchange rate used for a declaration?
Keep the signed proof PDF with the declaration or calculation. Your team remains responsible for the applicable source, date, rule, and filing context.
Does FXProof decide which customs or VAT source to use?
No. FXProof documents supported source/date/rate evidence. Your team remains responsible for source selection and procedural requirements.