Committed IFTA tax rates for a quarter (?quarter=2026-Q2&fuel_type=diesel&jurisdiction=WA), grouped by jurisdiction × fuel type with effective periods clipped to the quarter — mid-quarter revisions read as separate periods. Human-reviewed against iftach.org every quarter.
Api EndpointFinancial AnalysisHealthy · 286 ms0.005 USDC0.005 USDC · eip155:8453 · USDC
https://api.freestylevault.com/v1/rates