Last updated: November 15, 2026 Most truckers meet IFTA and IRP the hard way. A letter arrives. Or an officer at a scale house asks for a cab card nobody remembers ordering. Or the first quarterly fuel tax return is due in nine days, and the person who was supposedly "handling all that" turns out to be no one at all. The same story plays out a dozen ways, and it always ends with somebody paying more than they needed to, simply because nobody sat down and explained how the two systems fit together. So let's do that. This guide covers the International Fuel Tax Agreement and the International Registration Plan side by side, in plain English, with one fake-but-realistic truck running through both so you can see actual numbers. It's written for owner-operators, small fleet owners, drivers leased onto a carrier, and anyone about to buy their first rig. If you've ever typed "IRP trucking" or "IFTA trucking" into a search box at 11 p.m., it...
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