Saving for a house down payment

A house down payment is the most common big financial goal, and also the one people most often misjudge. The right number depends on the price of the house, the loan type, and the closing costs — not on a generic '20% rule.'

The real number

• 20% down is the classic target and avoids Private Mortgage Insurance (PMI).
• FHA loans allow as little as 3.5% down for first-time buyers with good credit.
• Conventional loans allow 3–5% down for first-time buyers.
• VA loans (military) and USDA loans (rural) can allow 0% down.
• Closing costs are another 2–5% of the home price and often get forgotten.

Where to park the money

If you're buying in less than 3 years, this money belongs in cash (HYSA, money market, or short-term Treasuries). Not in stocks. Not in crypto. Not in a 'balanced' portfolio. A 25% drawdown six months before closing has ended many home purchases. Boring beats clever when the timeline is short.

When to rethink the whole plan

If you're saving for more than 5 years and home prices in your area are rising faster than you can save, the math starts working against you. That doesn't automatically mean 'keep renting forever' — but it does mean the honest conversation is whether you're saving for the right city, the right house, or the right timeline.

A worked example: pricing the real target

Say you're targeting a $350,000 starter home with a conventional loan. The headline down payment at 10% is $35,000 — but that's not the savings goal. Closing costs at 3% add $10,500. Moving, immediate repairs, and the appliances the sellers take with them realistically add another $4,000–$6,000. And the reserve rule means arriving at closing with 3–6 months of the new housing payment (roughly $2,600/month all-in) still in the bank — call it $8,000 at the low end. The honest goal isn't $35,000; it's closer to $58,000. Buyers who save for the headline number and discover the rest in the final sixty days either drain their emergency fund, borrow from retirement, or push the closing — all three are expensive ways to learn that the down payment is only the biggest line item, not the whole bill.

The timeline math, three ways

With the real target of $58,500 and $12,000 already saved, the gap is $46,500. At $1,300/month in a 4% high-yield savings account, you arrive in roughly 34 months — call it three years, with interest contributing about $2,500 of the total. At $1,000/month, it's about 44 months. At $800/month, about 55 months — which crosses the 5-year line where you should re-check whether local prices are outrunning you. The point of running all three: the monthly number is a dial, not a verdict, and seeing the trade-offs in months makes the 'do we cut the travel budget or move the date?' conversation concrete instead of moody.

1. 1
   Price a real listing, not a vibe

   Pick three homes you'd genuinely buy today and average them. Add closing costs, moving, and reserves to get the true target. Re-price every six months — the target moves with the market.

2. 2
   Pick the loan type first

   The down payment percentage is a function of the loan: 3–5% conventional first-timer, 3.5% FHA, 0% VA/USDA if eligible, 20% to skip PMI. Talk to a lender or run the numbers before choosing your savings target — the difference between 5% and 20% on the same house is years of saving.

3. 3
   Open the dedicated account and automate

   One high-yield savings account named 'House — [target date],' auto-funded the day after payday. This money never shares an account with the emergency fund or the vacation budget.

4. 4
   De-risk by calendar, not by feel

   If any of this money is invested because the timeline was long, move it to cash as you cross the 3-years-out line. A market dip during your home search is noise; a market dip during escrow is a catastrophe.

Common mistakes house savers make

• Saving for the down payment but not closing costs — the classic five-figure surprise in the final month.
• Keeping the fund in stocks 'just until we start looking' — the search often starts suddenly, and 2022-style years happen without appointments.
• Draining the emergency fund at closing to hit 20% — you've traded a PMI payment for living one furnace failure from a credit card balance. PMI is removable later; a gutted safety net is dangerous now.
• Stretching to the top of pre-approval: the lender's maximum is what you CAN borrow, not what leaves room for retirement contributions, repairs, and a life.
• Forgetting that the first year of ownership reliably costs $3,000–$8,000 in things the inspection undersold.

The PMI decision: is 20% actually worth waiting for?

The 20% target deserves its own honest math, because 'avoid PMI at all costs' has cost plenty of buyers more than PMI ever would. Private mortgage insurance on a conventional loan typically runs 0.3–1.5% of the loan balance per year — on a $315,000 loan, roughly $80–$390 a month, and it drops off automatically once you reach 22% equity (or on request at 20%). Now weigh the alternative: spending two or three extra years saving from 10% to 20% while home prices rise 4–5% annually means the target itself grows by $30,000–$50,000 while you chase it, and you pay rent the whole time. In fast-appreciating markets, buying earlier with PMI and a smaller down payment frequently beats waiting for the full 20% — the appreciation and the earlier start on equity outrun the insurance cost. In flat markets, waiting wins more often. The point isn't that either answer is always right; it's that '20% or bust' is a slogan, and this particular decision rewards twenty minutes with a calculator: PMI cost per year versus expected price growth on the homes you're actually watching.

One more variable belongs in that calculation: your rent. Every month of waiting has a price attached — if you're paying $2,100 in rent while saving toward a bigger down payment, a two-year delay costs $50,000 in rent against perhaps $9,000 of avoided PMI. That comparison isn't automatically an argument to buy (renting buys flexibility, and owning has its own carrying costs people forget), but it should be in the spreadsheet rather than invisible. Buyers who run all three numbers — PMI, appreciation, rent — sometimes discover the 'responsible' plan of waiting for 20% was the most expensive option on the table.

The bottom line

The house savings goal is the down payment plus closing costs plus moving plus reserves — usually 50–70% more than the headline number. Price real listings, let the loan type set the percentage, keep the fund in cash once you're inside three years, and never gut the emergency fund to reach the closing table. A slightly later purchase with intact reserves beats an on-schedule purchase that leaves you house-poor on day one.