Payload is the weight a van can still carry without exceeding its maximum authorised mass (MAM). The figure in an advert is only a starting point: shelves, roof racks, a towbar, spare equipment and workers all use part of that allowance. A van that is “rated for 1,000kg” may have much less available for tools or materials after it has been fitted out.
Use the vehicle plate and handbook to identify the permitted MAM and axle limits. Then establish the van’s real working weight, ideally on a weighbridge with its normal fuel, racking and permanent equipment. The calculation is:
Remaining payload = MAM - actual ready-to-work vehicle weight
For example, if a van’s MAM is 3,500kg and the fitted-out van with fuel weighs 2,450kg, the remaining allowance is 1,050kg. Two occupants weighing 80kg each leave about 890kg for cargo before considering any other items or axle limits. This is an illustration; use your actual weighbridge result and the manufacturer’s figures.
Do not confuse MAM with the weight the van happens to have today. MAM is the maximum permitted mass, while the loaded weight changes on every trip. A load can stay below the total MAM and still overload one axle if heavy items are concentrated at the rear. Weight carried on a trailer also has separate licence and towing limits.
For tradespeople, weigh the van after permanent fit-out, record the result and leave a margin for changing crews and stock. Recheck after adding a lift, compressor or second battery. The CVRT requires light commercial vehicles to remain roadworthy, but a pass does not certify that today’s load is within your legal payload.
