The 20% down payment on a home is a convention, not a requirement. While it avoids private mortgage insurance (PMI), saving that amount can delay buying and increase costs due to rising home prices. Loans with as little as 3% down exist, with varying PMI costs. Different loan types—conventional, FHA, adjustable-rate, and interest-only—offer flexibility. Assistance programs and hybrid loans can also help. Pre-approval reveals personalized options, and maintaining cash reserves post-purchase is crucial.