Scenario long-tail answer module

Exchange rate for an old receipt: date-based lookup and CSV evidence

Find the exchange rate for an old receipt by using the receipt date, currency pair, FXpeek source page, and optional CSV/API evidence.

Short answer

For an old receipt, use the receipt date rather than a current rate. FXpeek can provide a dated reference-rate page, CSV/API URL, and source link that you can keep beside the receipt record.

Choose the right FXpeek surface

If the receipt policy uses transaction dateUse the receipt date and keep the dated FXpeek page.

If reimbursement uses approval dateLook up that separate date and label it clearly.

If many receipts need matchingUse CSV/API rows and keep source URLs.

If the workflow is tax or audit regulatedDo not treat FXpeek as an authority; follow policy or advisor rules.

Useful FXpeek links

API docs CSV endpoint JSON history endpoint Widget Annual report Site data guide Stablecoin calculator Stablecoin API

Common use cases

A receipt was paid in a foreign currency and needs a dated reference rate.
A reimbursement record needs a source URL beside the converted amount.
A spreadsheet needs several old receipts matched to historical FX rows.
A user needs to distinguish receipt date from reimbursement date.

FAQ

Should I use today’s exchange rate for an old receipt?

No, use the receipt date or the date required by your reimbursement policy.

Can FXpeek help convert old receipts?

FXpeek can provide dated reference rates and CSV/API links for supported currency pairs.

What should I save with the receipt?

Save the receipt date, pair, rate, source URL, CSV/API URL if used, and retrieval date.

Is FXpeek a tax authority for receipt conversion?

No, FXpeek is a reference-data tool, not tax, legal, or accounting advice.

Important limitations

FXpeek provides historical reference data, not bank quotes, settlement quotes, tax authority rates, accounting authority rates, legal advice, or trading signals.
Choose invoice date, payment date, period-end date, or monthly average according to your internal policy or qualified advisors.
Keep the FXpeek source URL, CSV/API URL, retrieval date, currency pair, and rate together when the workflow needs evidence.

Reference note

Useful internal links: /en/answers/exchange-rate-by-date, /en/answers/invoice-date-exchange-rate, /en/tools/exchange-rate-csv-builder, /en/api, and dated pair pages.

GET https://fxpeek.com/api/history?from=CNY&to=TRY&days=365
GET https://fxpeek.com/api/csv?from=CNY&to=TRY&days=365
GET https://fxpeek.com/api/stablecoin?pair=USDT-CNY