UCR compared, program by program
UCR gets confused with IRP, IFTA, and trip permits constantly. These side-by-side pages explain what each interstate program actually covers, who has to file, and how the UCR fee tiers work.
Comparison
UCR vs IRP
Federal flat-fee registration vs apportioned-plate mileage program - what each covers and why you likely need both.
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UCR vs IFTA
A once-a-year flat fee vs a quarterly per-gallon fuel-tax return - two completely separate filings.
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UCR vs IRP vs IFTA
The three interstate programs side by side: who administers each, what triggers it, and the deadlines.
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UCR vs State Trip Permits
Annual federal registration vs short-term per-trip permits - when each applies to an interstate move.
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UCR Tier 1 vs Tier 2
0-2 power units ($80) vs 3-5 power units ($225) - which bracket your fleet count lands in for 2026.
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UCR Tier 1 vs Tier 3 Jump
What happens to your fee when a growing fleet skips from Tier 1 straight into Tier 3.
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UCR for Brokers vs Carriers
Why brokers and forwarders file at Tier 1 while carriers pay by power-unit count.
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UCR Mid-Year Filing vs Annual Renewal
New-authority mid-year registration vs the year-end renewal window - what each one means for your deadline.
Read comparisonStill not sure which you need?
Most interstate carriers need UCR plus at least one of IRP or IFTA. File your UCR in two minutes, or read the tier guide to confirm your fee bracket first.