170+ Currencies. Automatic Detection and Conversion.
Inbox Ledger identifies the currency on every invoice — resolving ambiguous symbols like $ across USD, CAD, and AUD — then converts totals to your base currency using real-time or historical rates from Open Exchange Rates. Set your base currency once; every invoice is converted from that point forward.
Key Multi-Currency Converter Capabilities
Built-in functionality that eliminates repetitive document tasks
Context-Aware Currency Detection
The AI reads symbols, ISO codes, vendor country, and document language to determine the correct currency. Ambiguous symbols ($ for USD, CAD, AUD, or SGD) are resolved using contextual signals — no manual selection required.
Real-Time Rate Updates
Exchange rates come from the Open Exchange Rates API and cover 170+ currencies. Rates refresh automatically so your dashboard totals reflect current market values.
Historical Rate Lookups
Backdated invoices are converted using the exchange rate from the invoice issue date. This ensures accurate period-end accounting when invoices arrive weeks or months late.
One-Time Base Currency Setup
Select your organization's base currency in Settings — USD, EUR, GBP, or any ISO 4217 code. All future invoice totals are converted automatically. Change it any time without re-processing.
Dual-Currency Display
Every invoice shows both the original amount and the converted base-currency total. Filter, sort, and export by either value for flexible financial reporting.
Full Conversion Audit Trail
Each conversion records the original amount, converted amount, exchange rate, rate date, and rate source. Your finance team has the documentation needed for compliance reviews.
What the Converter Delivers
AI identifies and extracts data from every supported format
Contextual Currency Detection
Currency is identified from symbols, ISO codes, and document context. Ambiguous symbols are disambiguated using vendor country and language cues.
Real-Time Conversion
Totals are converted to your base currency at the latest available rate. Dashboard summaries always reflect current market conditions.
Historical Rate Accuracy
Invoices with past issue dates are converted at the rate from that specific date — essential for month-end close and retroactive expense reporting.
Unified Base-Currency Reporting
Dashboard totals, charts, and exports aggregate all invoices in your base currency, giving you a single-currency view of spend across every vendor.
170+ ISO 4217 Codes
Coverage includes major currencies (USD, EUR, GBP, JPY, CHF), emerging-market currencies, and additional codes supported by Open Exchange Rates.
Conversion Audit Record
Original amount, converted amount, rate, date, and source are stored per invoice — creating a complete, auditor-ready trail for every currency conversion.
How It Works
From connection to first extracted invoice in under five minutes
Configure Your Base Currency
Go to Settings > General and select your organization's reporting currency. All invoice totals will be converted to this currency going forward.
AI Detects the Invoice Currency
During extraction, the AI identifies the document currency from symbols, codes, and contextual signals — handling ambiguous cases automatically.
Exchange Rate Is Applied
The system fetches the current (or invoice-date historical) rate from Open Exchange Rates and converts the total. Rates are cached and refreshed at regular intervals.
Dual-Currency Totals Appear
Invoice totals show in both the original and base currency. Dashboard aggregations, charts, and exports use the converted values for unified reporting.
Who Benefits Most
Designed for finance professionals and teams managing high-volume documents
Global Procurement and AP Teams
Invoices arrive in EUR, GBP, JPY, and dozens of other currencies. See all vendor spend unified in your reporting currency — no spreadsheet lookups required.
CFOs and Finance Directors
Accurate, rate-sourced currency conversion for budgeting, forecasting, and period-end close. Historical rates ensure backdated invoices are booked at the correct exchange value.
E-Commerce and Marketplace Operators
International supplier invoices arrive in multiple currencies daily. Automatic detection and conversion eliminate manual rate lookups and reduce booking errors.
See Multi-Currency Converter in Action
Set up in under 5 minutes and let AI handle the busywork.
Frequently Asked Questions
The AI reads currency symbols, ISO codes on the document, vendor country, and document language to determine the correct currency. Ambiguous cases like "$" are resolved using these contextual signals together.
Rates are provided by the Open Exchange Rates API, covering 170+ currencies. They are fetched and cached automatically — no manual rate entry is needed.
Yes. When an invoice has a past issue date, the system uses the exchange rate from that specific date. This is important for accurate period-end accounting and retroactive expense reports.
Navigate to Settings > General and select your base currency from the dropdown. All invoice totals and dashboard summaries will be converted to this currency. You can change it at any time.
Over 170 currencies, covering all ISO 4217 codes including major currencies (USD, EUR, GBP, JPY, CHF), emerging-market currencies, and additional codes tracked by Open Exchange Rates.
Always. The original currency and amount remain intact. Conversion adds a second value in your base currency alongside the original. Both values are available for viewing and export.
No. Detection and conversion are included in the standard extraction credit. Multi-currency invoices cost the same single credit as any other document.
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