Apple UK is offering businesses a rebate on old Macs if they trade them in for new models.

Under the business trade-in programme companies can get up to £540 when they trade in an old Mac for a new one. Equipment must be purchased through the Apple Store for Business.

The trade-in value of second-hand Macs depends on the model. For example, a business will get £490 for a G4 Dual Processor 1.4GHz, £110 for a Snow iMac, or £540 for a 20-inch flat panel iMac. A full price list can be viewed here.

The offer ends on December 31.