Per Diem Compliance Calculator
Compare travel lodging and meal expenses with user-entered per-diem limits, including partial-day meal factors and excess amounts.
Check travel expenses against per-diem limits
Enter the policy rates that apply to your trip and compare them with actual lodging and meal expenses.
How the per-diem compliance calculator works
Lodging allowance equals eligible nights multiplied by the lodging limit. Meal and incidental allowance equals full days at the full rate plus partial travel days at the percentage you enter.
Why the rates are editable
Per-diem rates and travel rules vary by government, donor, employer, destination and date. A fixed global table would quickly become inaccurate. Enter the rate and partial-day rule from the policy or award that governs your trip.
Actual cost versus reimbursable cost
Some policies reimburse actual cost up to a ceiling; others pay a fixed allowance. Taxes, conference lodging exceptions, provided meals and incidentals can also be treated differently. Use the “actual” fields only on the basis relevant to your policy.
Compliance limitation
This tool compares arithmetic totals and does not decide legal or grant allowability. Keep receipts, approvals and travel documentation required by the applicable rules.
Separate arithmetic from travel-policy compliance
Per diem rules can vary by funding source, destination, travel day, meal provision, lodging documentation and employee/contractor status. The calculator compares claimed amounts with the limits and partial-day factor you enter, but it does not determine which official rate applies. Keep the rate table or policy version with the expense record, note any provided meals or exceptions, and use the governing organization's rounding and currency rules for reimbursement approval.