This is your initial equity contribution. While a 20% down payment is the standard "ideal" to avoid extra costs, the actual minimum depends on the property value and lender policies:
Buyers often need to contribute 25% or more. 2. Mandatory Closing Costs (6% to 8%) how much cash do you need to buy a house
Lenders may allow as little as a 10% down payment. This is your initial equity contribution