The down payment is only part of the cash a home purchase takes. Closing costs, moving and the first repairs all land in the same few weeks. The plan that works counts all of it, sets a monthly amount your budget can carry, and keeps the money somewhere safe until you need it.
Work Out the Full Cash Target
- Down payment. 20% avoids private mortgage insurance on a conventional loan, but it isn't required. Some conventional loans allow as little as 3% down, and FHA loans allow 3.5% for borrowers who meet the credit requirements. Less down means a bigger loan, a higher monthly payment and, usually, mortgage insurance.
- Closing costs. Lender fees, title insurance, appraisal and prepaid taxes and insurance. These commonly add a few percent of the loan amount. Your Loan Estimate shows the figure for your specific loan.
- Moving and setup. Movers, utility deposits, basic furniture and tools.
- A cash cushion after closing. New homes come with surprises. Don't empty your emergency fund into the purchase.
Worked Example
A $320,000 home with 10% down:
| Item | Amount |
|---|---|
| Down payment (10%) | $32,000 |
| Closing costs (estimate, about 3% of the $288,000 loan) | $8,640 |
| Moving and setup | $3,000 |
| Post-closing repair cushion | $4,000 |
| Total cash needed | $47,640 |
With $12,000 already saved, the gap is $35,640. Over 36 months that's $990 a month. Over 48 months, $742.50. Choosing the timeline your budget can actually hold matters more than choosing the fastest one.
Find the Monthly Amount
Start from your real monthly surplus. The Cash Flow Calculator shows it in a minute. If the gap is larger than your surplus, you have four levers:
- Extend the timeline. The simplest option, and it keeps the plan sustainable.
- Cut a large fixed cost. A cheaper car or phone plan, or a roommate, can free more than dozens of small cuts.
- Add income. Put all side income or raises straight into the fund.
- Lower the target. A less expensive home or a smaller down payment, weighed against the higher monthly payment that comes with it.
Where to Keep the Money
If you plan to buy within a few years, the money shouldn't be in stocks. A market drop right before you buy can delay the purchase. High-yield savings accounts, CDs timed to your target date, and Treasury bills are the usual choices. Keep the fund in its own account, separate from your emergency fund, so you can see progress and won't spend it by accident.
Check Assistance Programs
Many states, cities and housing finance agencies run down payment assistance programs, especially for first-time buyers. HUD lists housing counseling agencies that can explain local options at no or low cost. Ask about any program's repayment terms, since some are grants and others are loans.
Don't Hurt Your Mortgage Application Along the Way
- Avoid opening new credit lines or financing large purchases in the months before you apply.
- Keep records of large deposits. Lenders usually ask where they came from.
- Pay every bill on time. Payment history is a major part of your credit score.
Plan for the New Monthly Cost
Before you buy, live on the new budget. If the expected mortgage payment, taxes, insurance and maintenance come to $650 more than your rent, save that $650 every month on top of your down payment saving. If that's hard to sustain, the payment is too high. If it works, you've both proved the budget and built the fund faster. See how to set short- and long-term cash flow goals to fit this alongside your other savings.
Frequently Asked Questions
Do I need 20% down to buy a house?
No. Many conventional loans allow as little as 3% down and FHA loans 3.5% for eligible borrowers. Putting down less than 20% on a conventional loan usually means paying private mortgage insurance until you build enough equity.
Can I use retirement savings for a down payment?
Some plans allow loans or withdrawals, but these can carry taxes, penalties or lost growth. Check your plan's rules and talk to a tax professional before using retirement money.
How much should I keep after closing?
Enough to cover your emergency fund in full, plus a cushion for early repairs. Lenders may also require cash reserves after closing; your lender will tell you the amount.
