Credit cards cannot be used for down payments when buying a house.
Paying the down payment for a house with a credit card is very risky, because such large purchases will be recorded on the personal credit report, resulting in a higher debt ratio. When applying for a home purchase loan, you will encounter great difficulties. If the explanation is not clear, it will easily cause bank staff to worry about the applicant's repayment risk, which will lead to the loan being rejected.