The average cost of a van insurance premium dropped by 4.4% in the three months to November, according to Pearson Ham Group.
The pricing consultancy also reported that prices were now 7.6% lower than six months ago, and down by 19% compared with the same period last year.
Since a market peak seen in mid-2024, prices are said to be down by nearly 26%.
Pearson Ham Group director Stephen Kennedy said: “A year and a half of sustained easing has reshaped the competitive landscape in van insurance.
“Prices have fallen month after month since June 2024, but this overall trend is far from uniform. Some carriers are pushing rate reductions aggressively, while others are holding back.
“That divergence is now a defining feature of the market and explains why individual insurers’ performance often deviates from the industry average.”