Can I put windows in my van?

Hi,

Can I put windows into my van to allow air flow for my dogs that are crated in purpose-built cages in the back without having to inform Revenue for tax reasons or my insurance company?

Karen Heathcote (Dublin 22 )

Oct 2025 Filed under: commercial vehicle

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Expert answer

Hi Karen,

You can add windows for ventilation, and it shouldn't affect your commercial tax class as long as the van stays a two-seat commercial. If in any doubt, ask Revenue beforehand. 

But you should tell your insurer, because any bodywork modification counts.

It's quick to do, and they'll almost certainly be fine with it.

Shane O' Donoghue - Complete Car Advisor