Lex Vehicle Leasing, Inchcape Fleet Solutions, LeasePlan and Business Partner, as well as industry analysts EuroTax-Glass's and KeeResources, predict healthy residual values for the car.
Taking a composite used value for a 1.8 S petrol and 2.0D S diesel, leasing companies predict a residual value of 42% on a typical three-year contract.
For a composite monthly rental on a three-year contract, they suggested figures of about £357 for the 1.8 S and £365 for the 2.0D S.
John Wallace, leasing and rental manager at Volvo, said: 'The new S40 is an ideal fleet car choice. It offers high specification levels, a unique modern style and a combination of comfort and driving performance. It is also extremely competitively priced.
'We are pleased the leasing companies have recognised this when calculating residual values and monthly rentals.'
LeasePlan's residual value forecast manager, Steve Crawshaw, said: 'The new Volvo S40 is sporty and stylish and has lots of user chooser appeal, as well as adding new zest to the Volvo brand.'
Andy Brown, operations director of Inchcape Fleet Solutions, said: 'We think the S40 will make a real impact in the fleet market this year.'