Trucking Capacity Shrinks as Load Rejections Hit 4x Normal

Carriers are rejecting roughly four times as many contracted loads as normal — and it's not because freight is surging. It's because trucks keep leaving the market.

New SONAR data puts the Truckload Rejection Index near 14%, about three times its 2023–2025 range, while tractors in new for-hire fleets fell to 19,520 in August — down roughly 14% from the first-half average. Total for-hire tractors dropped by about 51,000 in August alone. Over three years, rejections are up 268% while freight volume is up just 9%.

Don't let the rising operating-authority counts fool you. Net authority additions topped 2,000 a week in late summer — a five-year high — but that's mostly FMCSA's new Motus registration system clearing a backlog, not new trucks. Estimated new authority grants actually ran about 17% below the first quarter. An authority is permission to haul, not a truck.

Three things are keeping new capacity out: a shrinking pool of compliant drivers (202,345 CDL holders sat in Clearinghouse prohibited status as of January, and English-proficiency enforcement sidelines about 2,700 drivers a month), insurance premiums that rose 3.9% in 2025 to roughly 10.6 cents a mile, and margins too thin to justify adding trucks.

What it means for drivers: the market should stay tight through early 2027, and tight markets are where rates finally have room to move. If you're an owner-operator, this is leverage — price your lanes like the scarce capacity you are.