IFTA vs IRP — What's the Difference?

IFTA and IRP are commonly confused because both involve interstate operations and base-state filing. They're different systems with different purposes.

IFTA (International Fuel Tax Agreement)

• Purpose: Fuel tax reciprocity across states
• What it does: Lets you buy fuel in any state and report taxes once
• When you need it: Any motor carrier qualifying vehicle (>26K lbs)
• Frequency: Quarterly returns + license decals (annual)
• Cost: Annual decal fee (~$25 per vehicle) + quarterly tax (varies)

IRP (International Registration Plan)

• Purpose: Vehicle registration across states
• What it does: One license plate recognized in all IRP jurisdictions
• When you need it: Any commercial vehicle crossing state lines
• Frequency: Annual registration renewal + quarterly mileage report
• Cost: Annual registration fee (apportioned by mileage)

Comparison table

Aspect	IFTA	IRP
What you're paying	Fuel tax	Vehicle registration
Decal vs plate	Decals + license	License plate
Reporting frequency	Quarterly	Quarterly (mileage) + annual (registration)
Tax/fee basis	Fuel consumed × rate	Miles driven × rate
Base state	Where vehicle is based	Where vehicle is based
Renewal cycle	Annual decal	Annual registration

How they interact

• Both use mileage data (you can derive both from ELDs)
• Both require state-by-state allocation
• Both expect quarterly reporting
• Both have audit programs

When you need ONE but not the OTHER

• IFTA only: typically not applicable (if you have IFTA you usually have IRP)
• IRP only: typically not applicable (if you have IRP you usually have IFTA)
• Some states have intra-state-only registration that's not IRP

Common confusion

• "IFTA decals" vs "IRP plates" — different
• IFTA fuel tax owed vs IRP registration fees — different
• IFTA quarterly return vs IRP quarterly distance report — different forms, same data

Compass approach

• IFTA module: focused on fuel + tax
• IRP integration shares mileage data
• Quarterly reports generated from same ELD + fleet data
• Single calculation engine; two output formats

CFR citations

• IFTA Articles of Agreement
• IRP Articles of Agreement

How Compass surfaces this

Searchable in Compass Ask. Runs against carrier fleet data when invoked from the relevant tracker. Read-only; no actions without explicit user approval.

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