The 20% rule vs. reality.
"Put 20% down" is the most-repeated advice in personal finance, and it is mostly out of date. The median first-time buyer in the U.S. puts down 6–8% and has done so for over a decade. The 20% target is a guideline that avoids PMI and gets the best rates — it is not a rule.
The right number is the one that lets you keep three to six months of expenses in cash after closing. If 20% drains your reserves, put down less. PMI for two years is almost always cheaper than running out of money in month three.
PMI, demystified.
Private mortgage insurance is a monthly premium charged on conventional loans with less than 20% down. It protects the lender from default — not you. Premiums typically run 0.5%–1.5% of the loan per year, paid monthly. On a $360k loan at 1%, that’s about $300/month.
PMI falls off automatically when your loan-to-value ratio reaches 78% (i.e., 22% equity), based on the original purchase price. You can also request removal at 80% LTV. FHA mortgage insurance (MIP) works differently — on most FHA loans it stays for the life of the loan unless you refinance.
Gift funds and other unconventional sources.
Most loan programs let immediate family gift you part or all of the down payment. You need a gift letter — a signed statement saying the money is not a loan. FHA allows 100% gifted down payment. Conventional loans usually require the borrower to put some of their own money in on higher-balance loans.
Roth IRA contributions can be withdrawn tax- and penalty-free at any time. First-time buyers can also pull up to $10k of Roth earnings penalty-free. 401(k) loans are possible but risky — if you leave your job, the balance is often due immediately. The IRS limits 401(k) hardship withdrawals for home purchase, but they are taxed plus penalized if you are under 59½.
Where to park your down payment savings.
The rule for any goal within three years: capital preservation beats yield. The down payment fund is not the place to chase returns. If the market drops 30% the month before you close, your timeline just got destroyed.
Reasonable homes for the money: a high-yield savings account (4–5% APY in 2026), short-term Treasury bills (no state tax, fully liquid via brokerage), a brokered CD ladder, or a money-market fund. Skip stocks, crypto, real-estate-investment trusts, or anything else marketed as "growth."
Common down-payment mistakes.
- Forgetting about closing costs (2–5% on top of the down payment).
- Draining the emergency fund to hit 20%.
- Investing down-payment money in stocks within 2–3 years of buying.
- Underestimating the cash needed for moving, repairs, and the first months of homeownership.
- Borrowing from a 401(k) without a plan for what happens if you leave your job.
- Buying the most expensive house you qualify for instead of one that leaves room in the monthly budget.