Regional methods
| Region | Method | GPS role |
|--------|--------|----------|
| US | IRS CPM / FAVR | Road miles per session |
| UK | HMRC MAP | Journey substantiation |
| Canada | CRA reasonable/km | Contemporaneous log |
| Australia | ATO cents/km | Business km rollup |
Multi-currency blog · [UK HMRC guide](/blog/uk-hmrc-mileage-allowance-field-teams/) · [Canada CRA guide](/blog/canada-cra-mileage-reimbursement-field/)