FRAUD CATEGORIES 3 AND 5 OF 6
Currency mismatches and multi-currency policy violations. Caught before approval.
Two related fraud categories both live here. Currency mismatch: the receipt shows one currency, the claim is submitted in another. Disallowed multi-currency: the employee submits a currency your company's policy does not allow. Both are caught at submission by REME's AI, not discovered at audit weeks or months later.
How currency-related expense fraud actually happens
Currency-related fraud takes two shapes. Each has a different detection method. Both matter for cross-border teams.
The receipt shows one currency, the claim shows another
An employee travels to Bangkok, gets a receipt in Thai Baht, and submits the claim in USD converted at a favorable exchange rate that does not match the actual transaction date. Or the receipt is in local currency but the claim is filed in the employee's home currency with a manipulated conversion. Both are currency mismatches. Both are caught by our engine.
The employee submits a currency your policy does not allow
Your company's policy specifies that only certain employees, roles, or business trip types can submit claims in currencies other than the home currency. An employee outside that scope submits a foreign-currency claim anyway. Manual review may or may not catch this. Our engine validates every multi-currency claim against your company's allowlist policy automatically.
SEE IT IN ACTION
See currency validation in action
How currency mismatches slip past manual review, and how REME's engine catches them at submission.
Why cross-border teams struggle with multi-currency policy enforcement, and how REME validates every multi-currency claim against your allowlist automatically.
How our engine catches currency mismatches
Currency mismatch detection runs three parallel checks:
Currency identification from receipt
Our OCR extracts the currency symbol, currency code, or currency context from the receipt. Handles unambiguous cases (INR symbol) and ambiguous cases (dollar sign that could be USD, SGD, HKD, or AUD).
Cross-check against claim currency
The extracted currency is compared against the currency the employee submitted the claim in. If they do not match, flag raised. Confidence score based on OCR certainty about the receipt currency.
Exchange rate validation at transaction date
If the claim converts the receipt currency to another (say, USD), we validate against the actual exchange rate at the transaction date, not today's rate. Manipulated conversions caught.
How our engine enforces your multi-currency policy
Disallowed multi-currency validation is a configurable rule your company sets. During onboarding, you specify:
Allowed currencies (globally)
The list of currencies your company accepts across all claims. Anything outside this list is automatically flagged.
Allowed currencies per employee or role
Optional: specific employees, teams, or roles authorized to submit in currencies outside the global list. Sales team members who travel internationally, for example.
Business trip authorization
Optional: employees are authorized to submit in a specific currency only for specific business trip contexts. Trip authorization can be pulled from your calendar or travel system.
Any multi-currency claim that violates your configured policy is flagged for finance review before approval.
FAQ
Common questions about currency detection
We use standard financial market exchange rates at the actual transaction date, not today's rate. This is the industry standard for expense fraud detection and matches how corporate accounting handles multi-currency reconciliation.
Legitimate cross-currency transactions happen. Our engine allows for typical card conversion patterns (2-3 percent variance) without flagging. Manipulated conversions outside this range get flagged.
Yes. Finance admins update the allowed-currency list, per-employee overrides, and per-trip authorizations anytime through the REME dashboard. Changes take effect immediately for future claims.
Two things. First, our checks run at submission automatically on every claim, not on selected samples during audit. Second, our engine cross-references receipt currency against claim currency using OCR and pattern matching, catching cases where the employee submitted the correct currency code but the underlying receipt is in a different currency (a case manual audit consistently misses). For a broader look at the expense management software category, see our <a href="/expense-management-software/" class="text-reme-primary font-medium hover:underline underline-offset-4">complete guide to expense management software</a>.
The other four fraud categories
Currency-related detection is two of six. Explore the others.
Handwritten claim validation
Coming soon
See it work on your own expense data
A twenty-minute demo walks through how currency mismatch and multi-currency validation would work on your specific cross-border teams, allowed-currency policy, and typical claim patterns.