Answers by Donna Llanes

You generally cannot “borrow” your 20% down payment in a way that still lets you avoid mortgage insurance; lenders usually require that down payment funds be your own money, gifts, or certain approved assistance—not another loan in addition to the first mortgage.

• You do not have to put 20% down to get a conventional mortgage; many programs allow as little as 3–5% down.[newamericanfunding +3] • The “penalty” you are talking about is private mortgage insurance (PMI), which is typically required if you put less than 20% down on a conventional loan.[nerdwallet +4] • PMI is an added monthly cost in your payment, not a one‑time tax to the government.[myhome.freddiemac +1] Can you borrow the down payment? • Most conventional lenders do not allow you to take out another unsecured loan (personal loan, credit card, etc.) specifically to cover the down payment; they want to see that money as your own funds, gifts, or approved assistance.[singlefamily.fanniemae +2] • A second mortgage (like a piggyback 80/10/10) can sometimes be used to reduce PMI or effectively get you to an 80% first‑mortgage loan‑to‑value, but that is a structured product, not just “rolling” the 20% into the main loan.[lendingtree +1] • If you do take another loan, it must be disclosed, and the payment counts in your debt‑to‑income ratio, which can make qualifying harder.[selling-guide.fanniemae +1] Allowed sources instead of a borrowed loan • Low‑down‑payment conventional programs (3–5% down) where you accept PMI for a while.[racmortgage +4] • Gift funds from eligible family members, sometimes covering all or most of the down payment, subject to program rules.[selling-guide.fanniemae +2] • Down payment and closing cost assistance programs offered by state/local agencies or nonprofits, which Fannie Mae and others allow within guidelines.[singlefamily.fanniemae +1] Why you usually can’t “roll it in” • The first mortgage is capped by maximum loan‑to‑value (LTV) rules—on a standard conventional loan, you cannot just finance 100% of the price on the main mortgage.[yourhome.fanniemae +2] • PMI exists because the lender is financing more than 80% of the value; avoiding PMI while also effectively borrowing more than 80% is exactly what the rules are designed to prevent.[anthemeap +2] Practical options • Buy with less than 20% down, accept PMI, and plan to remove it once your equity reaches about 20% through payments and/or appreciation.[consumerfinance +1] • Look at structured combo‑loan options (80/10/10, 80/15/5, etc.) and compare total cost vs. single loan with PMI. • Delay purchase and save longer, or target a lower price point to reach 20% more comfortably. Given your situation, the biggest decision is whether you are comfortable paying PMI for a few years in order to buy sooner.