Verifiable exchange-rate evidence for business records

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

Evidence workflow

Keep clear exchange-rate evidence for your small business

If you run a one-person business, freelance practice, or small company, you may need exchange-rate evidence only a few times a year. FXProof gives you a clear signed proof to keep with an invoice, expense, payment, or tax file without building a finance process of your own.

From the first question to reviewer follow-up

What should I keep with the business record?

Keep the business document first: the invoice, receipt, payment record, contract, or calculation. If the record uses an official reference rate, add the Signed FXProof Proof PDF for the same source and date.

When do I need a bank record instead?

Use the bank, card, or payment-provider record when you need to show what was actually charged or converted. Use FXProof when the business calculation calls for a supported official reference rate.

How does FXProof create the evidence?

Choose the supported source and date required by your rule, accountant, client, or policy. When the proof bundle is ready, open it and keep the signed proof beside the business record.

The proof keeps the source, rate context, document id, payload hash, digital signature, and verification details together. You do not need to build a separate evidence system.

Can I use it without an accounting team?

Yes. You can find and keep a proof yourself, then send the ordinary business record and the proof to your accountant or reviewer when needed.

  • A foreign-currency invoice sent to a client.
  • An overseas client payment recorded in your accounts.
  • A software subscription paid in another currency.
  • A travel or contractor expense converted for bookkeeping.
  • A tax or year-end file prepared for an external accountant.

What can an accountant or reviewer check later?

They can inspect the source and rate context, validate the 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.

Which option fits occasional proof needs?

Occasional use is normal. Search does not use proof quota, and reopening a bundle already opened for your account does not spend another proof unit. Choose a plan from the number of new proof bundles and the archive depth you actually need.

Is this too much for one invoice or expense?

No. The value does not depend on the size of the business. It depends on whether you may need to explain the calculation later to a client, accountant, tax adviser, or reviewer.

What the proof does not decide

FXProof does not choose your accounting or tax treatment, prove the rate charged by a bank, or guarantee that a recipient will accept a document. It gives you a consistent record of the supported official source and rate you selected.

See the document first

Open a public sample and decide whether the proof format fits the record you need to keep.

View a proof sample

Bank rate or official rate?

Check which kind of rate belongs in your record before opening a proof.

Understand the difference

Ready to use it?

Create an account when you have a real source and date to document.

Start free

Questions

Is FXProof useful for a one-person business?

Yes. It is designed to let you keep a clear exchange-rate proof with a real business record without building an internal finance or compliance process.

Do I need an accountant to use it?

No. You can open and keep the proof yourself. An accountant or reviewer can check the document later without access to your account.

Can I use it for one invoice or expense?

Yes. Occasional use is normal. Keep the proof with the invoice, expense, payment, or calculation that used the official reference rate.

Does it prove what my bank charged?

No. Use the bank or payment-provider record for the transaction rate. FXProof documents supported official reference rates.

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.