Down Payment Savings Calculator — How Long to Save for a House
Calculate how long to save a home down payment given your monthly savings and target amount. Understand 3.5%, 10%, and 20% down payment options.
Plan Your Home Down Payment
A down payment is the biggest upfront cost of buying a home. The amount you put down affects your mortgage rate, monthly payment, and whether you pay Private Mortgage Insurance (PMI). Use the saving goal calculator to set your target and calculate how many months to reach it at your current savings rate.
- 3.5% down (FHA loan): Minimum for FHA loans — requires mortgage insurance (MIP) for the life of the loan
- 5–10% down (conventional): Lower barrier — but requires PMI until you reach 20% equity
- 20% down (conventional): Avoids PMI entirely — saves hundreds per month over the life of the loan
- Calculate your target: Home price × down payment percentage = savings goal
- Monthly savings needed: Divide goal by months until purchase = required monthly savings
Choose the Right Variant
- This page: Down payment savings — how long to save and what percentage to target
- Saving Goal Calculator: Set any savings target and timeline
- Mortgage Calculator: Estimate monthly mortgage payment after you buy
- Emergency Fund Calculator: Build your emergency fund before buying
Down Payment Reference by Home Price
- $300,000 home: 3.5% = $10,500 | 10% = $30,000 | 20% = $60,000
- $400,000 home: 3.5% = $14,000 | 10% = $40,000 | 20% = $80,000
- $500,000 home: 3.5% = $17,500 | 10% = $50,000 | 20% = $100,000
- $600,000 home: 3.5% = $21,000 | 10% = $60,000 | 20% = $120,000
- Don't forget closing costs: Typically 2–5% of loan amount — budget for this separately from the down payment
Privacy and Data Handling
All calculations run locally in your browser. Your financial data is never sent to any server and is not stored.
Frequently Asked Questions
Is a 20% down payment really necessary?
No, but it's worth understanding the trade-offs. With less than 20% down on a conventional loan, you'll pay PMI — typically 0.5–1.5% of the loan amount per year. On a $400,000 loan, that's $2,000–$6,000/year ($167–$500/month) until you reach 20% equity. Over 5 years, that's $10,000–$30,000 in extra PMI payments. Weigh this against your opportunity cost of saving longer: if the housing market appreciates, waiting to save 20% might cost more than the PMI savings. Many first-time buyers use 5–10% down and refinance later.
Where should I save my down payment?
Down payment funds should be liquid and low-risk — don't invest in stocks. A high-yield savings account (HYSA) earning 4–5% APY is ideal for timelines under 3 years. For longer timelines (3–5 years), Treasury bills or CDs can earn slightly more with the same FDIC protection. Avoid money market funds (not FDIC insured) for must-have down payment savings. Down payment assistance programs exist for first-time buyers — check your state housing authority and HUD-approved counselors for local programs.
Should I use retirement savings for a down payment?
Generally, no. Withdrawing from a 401(k) before 59½ incurs a 10% penalty plus income taxes — you'd lose 30–40% of the withdrawal to taxes and penalties. First-time buyers can withdraw up to $10,000 from a traditional IRA penalty-free (taxes still apply), and up to $10,000 of contributions from a Roth IRA penalty-free. The lost compounding from depleting retirement savings often costs more than the years of additional rent. Consider all other options (HYSA, down payment assistance programs, lower price point) before touching retirement accounts.