The amount of money to be paid by the purchaser to the seller upon the signing of the agreement of sale. The agreement of sale will refer to the downpayment amount and will acknowledge receipt of the downpayment. Downpayment is the difference between the sales price and maximum mortgage amount. The downpayment may not be refundable if the purchaser fails to buy the property without good cause. If the purchaser wants the downpayment to be refundable, he should insert a clause in the agreement of sale specifying the conditions under which the deposit will be refunded, if the agreement does not already contain such clause. If the seller cannot deliver good title, the agreement of sale usually requires the seller to return the downpayment and to pay interest and expenses incurred by the purchaser.