首套房首付款比例因地区和政策而异，ranges from 20% to 30% of the total house price. For example， if the house price is 100万元，the first-time homebuyer would need to pay between 20万元 and 30万元 as a down payment. However， this percentage can vary depending on the bank's policies and the specific situation of the buyer. It's always a good idea to consult with a mortgage broker or bank representative to determine the exact amount of the down payment required for your situation.
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（图片来源网络，侵删）