The Down Payment Math at Current Home Prices
With median U.S. home prices around $400,000-$420,000, a 20% down payment requires $80,000-$84,000 in saved cash β plus closing costs of typically 2-4% ($8,000-$17,000) for a total of approximately $90,000-$100,000 needed before move-in. For a household saving $1,000/month in a 5% high-yield account starting from zero, reaching $90,000 takes approximately 74 months β just over 6 years.
The 20% threshold avoids PMI (Private Mortgage Insurance, typically $100-$300/month) and reduces the loan amount, but it is not the only option. FHA loans allow 3.5% down ($14,000-$15,000 on a $400,000 home), and conventional loans can allow 5-10% down with PMI. The lower down payment gets you into a home sooner but increases monthly carrying costs through PMI and a larger loan balance.
The key decision: is it better to wait for a 20% down payment or buy sooner with less down? In appreciating markets, waiting means buying at a higher future price (and larger required down payment). In flat or declining markets, waiting can be advantageous. The calculator models both paths to find which produces better financial outcomes over your intended ownership horizon.
Calculate your down payment timeline
Enter your current savings, monthly contribution, target home price, and down payment percentage to see exactly how many months until you are ready.
Calculate My Down Payment TimelineHow to Accelerate Your Down Payment Timeline
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Set your specific target: home price Γ down payment percentage + closing costs
Research home prices in your target area β not national medians. Use Zillow, Redfin, or Realtor.com to see current listings in your target neighborhoods and price range. Set a realistic target price. Multiply by your target down payment percentage (3.5%, 5%, 10%, or 20%). Add estimated closing costs (2-4% of purchase price). This is your savings target.
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Calculate your current monthly savings capacity
Review 3 months of actual spending and identify your honest monthly savings surplus. This is the amount you can consistently direct to the down payment fund without creating financial strain. Be conservative β a savings plan that requires perfect months will fail when an irregular expense arrives.
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Maximize your savings rate to the target
Identify 2-3 specific expense reductions or income additions that accelerate the timeline. Common examples: eliminating one subscription tier (streaming, gym, dining out category), a temporary pause on discretionary purchases, a tax refund directed 100% to the down payment, or a side hustle contribution. Model each: even $200/month additional reduces the timeline by 8-12 months on a typical down payment goal.
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Explore down payment assistance programs
Many states and local governments offer down payment assistance (DPA) programs for first-time buyers, ranging from grants (free money) to forgivable loans to low-interest second mortgages. Income limits apply β typically 80-120% of area median income. HUD-approved housing counselors (find them at hud.gov) can identify programs in your specific area. DPA can add $5,000-$25,000 to your purchasing power at no cost or low cost.
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Model whether 5-10% down now beats 20% down later
If home prices in your target market are appreciating at 4-6% annually, waiting 2 more years to reach 20% means buying a more expensive home β potentially requiring a larger down payment than you would have needed now. Calculate: projected home price at your 20% down payment completion date. If the 20% of the future price exceeds what 5-10% costs today plus 2 years of PMI, buying sooner with less down may produce better financial outcomes.
Frequently Asked Questions
Should I put 20% down or buy sooner with less?
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The correct answer depends on your local market's appreciation rate, your rent versus mortgage cost comparison, and your opportunity cost. In high-appreciation markets, the cost of waiting (buying a more expensive home later) often outweighs the cost of PMI. In flat markets, the financial case for waiting is stronger. Model your specific scenario: total cost of each path over your intended ownership horizon, including PMI, larger loan interest, and foregone appreciation.
What are FHA loan requirements for first-time buyers?
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FHA loans require a minimum 3.5% down payment with a 580+ credit score (or 10% down with 500-579 score). The property must be your primary residence and pass an FHA appraisal. FHA loans require upfront MIP (1.75% of loan amount) plus annual MIP (0.55-1.05% of loan balance) for the life of the loan if you put less than 10% down. For buyers with lower credit scores or limited down payment savings, FHA loans provide access to homeownership that conventional loans would not.
Can I use a 401(k) for a down payment?
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First-time homebuyers can withdraw up to $10,000 from an IRA penalty-free (though income tax still applies). A 401(k) may allow hardship withdrawals or loans β many plans allow loans of up to 50% of vested balance or $50,000, to be repaid within 5 years. Caution: withdrawing from retirement accounts reduces long-run wealth significantly through lost compounding. Use retirement funds for a down payment only as a last resort after exhausting all other options.
What is earnest money and how much do I need?
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Earnest money (also called good faith deposit) is a deposit made when an offer is accepted, demonstrating commitment to the purchase. Typically 1-2% of the purchase price ($4,000-$8,000 on a $400,000 home). It applies toward your down payment at closing. If you back out of the contract without a contingency protection (inspection, financing, appraisal), you may forfeit the earnest money. Have this liquid and readily accessible separate from your long-term down payment savings.
How does the First-Time Homebuyer Tax Credit work?
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The federal First-Time Homebuyer Credit expired in 2010. No equivalent federal credit exists currently (as of 2024), though various state and local programs offer tax credits. Some state programs provide mortgage credit certificates (MCCs) that give a federal tax credit of 20-25% of annual mortgage interest, reducing your tax burden for the life of the loan. Check your state housing finance agency for currently available programs.
What should I do in the 6 months before buying to prepare financially?
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Six months before expected purchase: check and optimize your credit score (dispute errors, pay down credit card balances below 30% utilization, avoid opening new credit accounts). Get pre-approved, not just pre-qualified, from at least two lenders. Build your down payment plus closing cost reserve in a dedicated account. Research down payment assistance programs. Connect with a HUD-approved housing counselor if it is your first purchase. Avoid any major financial changes (job change, large new debts) that could affect mortgage qualification.
Find your exact down payment timeline
Calculate months to goal with your current savings rate, and see what gets you there faster.
Calculate My Down Payment Timeline