Verifiable exchange-rate evidence for business records

Keep source attribution, selected date, document id, payload hash, and public verification together.

Exchange-rate evidence

Keep HMRC monthly exchange-rate proof with the period record

When a customs, VAT, tax, or accounting file uses an HMRC monthly exchange rate, keep the required period and supporting proof with the calculation. FXProof packages the supported HMRC dataset, selected date or period, rate context, signed document, and public verification details in one record.

FXProof static proof sample preview

Signed FXProof Proof PDF from His Majesty's Revenue and Customs. This is a static example; readiness for a generated proof depends on the concrete dataset and date.

PDF signature: open the downloaded file in Adobe Acrobat Reader or Acrobat. Browser PDF viewers may hide the signature panel.

Identify the period required by the file

Start with the customs, VAT, tax, accounting, or professional instruction that governs the calculation. Record the HMRC month or period required by that instruction instead of treating every tax file as the same workflow.

Match the period to the supported HMRC dataset

HMRC publishes monthly exchange rates for customs-value work and identifies when each monthly set applies. Select the supported dataset and date or period that match the file, then confirm that the proof bundle is ready.

Keep the proof with the calculation

Attach the signed proof PDF to the schedule, declaration, workpaper, or accounting record that used the rate. Keep the filing context and the reason for choosing the period in the business file.

The proof adds a consistent source and period record, digital signature, document id, payload hash, and public verification path. It does not replace the underlying filing or professional conclusion.

Separate evidence from advice

HMRC remains the source of the rate data. FXProof is not affiliated with or endorsed by HMRC and does not decide whether the selected rate or period is correct for a particular filing.

HMRC source and period

Review the supported HMRC source, date or period semantics, readiness, and non-affiliation note.

Open HMRC source page

See the document

Inspect the static HMRC proof sample and the verification fields passed to a reviewer.

View HMRC proof sample

Tax file workflow

See how to keep exchange-rate evidence with a tax schedule or workpaper without treating it as tax advice.

Open tax use case

Customs and VAT workflow

See where source, period, proof, and filing context fit in a customs or VAT file.

Open customs and VAT use case

Questions

Does this guide say which HMRC month I must use?

No. Follow the instruction or professional advice governing the file. FXProof documents the supported HMRC dataset and period you selected.

Is the FXProof PDF issued by HMRC?

No. HMRC publishes the underlying exchange-rate data. FXProof independently issues and signs the source-attributed proof PDF.

Can the proof replace a customs, VAT, or tax workpaper?

No. Keep the proof with the workpaper or declaration that explains the calculation and filing context.

Keep the proof with the file that used the rate

Inspect a static sample first, then use an account when you need a proof bundle for a concrete dataset and date.