deposit 5000Score: 55 (60 votes) . When a cash deposit of $10,000 or more is made, the bank or financial institution is required to file a form reporting this. ... So, two related cash depositsTo get a £5k Deposit Mortgage, you'll need to have at least a £5,000 deposit. For example, if you wanted to buy a home worth £300,000: £300,000 = Property . £5,000. £5k deposit + £295,000.