http://answers.yahoo.com/question/in...BG7&show=7
"How long can you hold on to a cheque before any bank refuses to accept it?"
"In theory a cheque would stay valid until you presented it for payment. When a cheque is issued the person writing it is obliged to have the funds in their bank account to cover it and, therefore, if you do not cash the cheque the funds should still be there to cover it. In practice banks normally honour cheques up to 6 months old after which they may be rejected and stamped 'Refer to Drawer'. Moral? Pay in a cheque as soon as possible!"