Down Payment Calculator
✦ Finance & MoneyUse this free down payment calculator to find the cash required at 3, 5, 10 and 20 percent down — plus estimated closing costs and the monthly payment at each level — and to see how long your savings will take to reach a down payment goal.
- ✓ Calculated in your browser
- ✓ Nothing you type is stored
- ✓ No sign-up required
- ✓ Formula and sources shown
The formula
Down payment and savings timeline
DP = Price × (pct/100); Cash = DP + ClosingCosts; PMI: pct < 20%; FV = P(1+r)^n + PMT×[(1+r)^n−1]/r
Down payment is home price × the chosen percentage. Closing costs default to 3% of purchase price (the midpoint of the CFPB-cited 2–5% range, editable). Monthly P&I uses the standard level-payment formula. PMI applies when the down payment is below 20% of the purchase price (Homeowners Protection Act). Savings timeline: the existing balance grows at the monthly rate, and each monthly saving is added as an ordinary-annuity deposit; the calculator iterates month by month until the combined balance meets or exceeds the target.
Calculating it by hand
- Enter the home price you are targeting.
- Adjust the closing cost percentage if your lender has provided an estimate (the default is 3%, the CFPB midpoint).
- Enter the interest rate and loan term to see the illustrative monthly P&I at each down payment tier.
- Read across the comparison table: for each tier the table shows the down payment dollars, the estimated closing costs, the total cash needed and whether PMI applies.
- To estimate how long your savings will take, switch to Savings timeline mode and enter your current savings balance, your planned monthly saving and the annual rate on your savings account.
- The months-to-goal figure assumes monthly compounding and end-of-month deposits; adjust the savings rate or monthly saving and the timeline updates instantly.
Worked examples
$425,000 home — comparing 5% vs 20% down
Home price: $425,0005% down: $425,000 × 0.05 = $21,250Closing costs at 3%: $425,000 × 0.03 = $12,750Total cash at 5%: $21,250 + $12,750 = $34,000Loan at 5%: $425,000 − $21,250 = $403,750; monthly P&I at 7%, 30 yr = $2,686.1620% down: $425,000 × 0.20 = $85,000; total cash = $85,000 + $12,750 = $97,750Loan at 20%: $425,000 − $85,000 = $340,000; monthly P&I at 7%, 30 yr = $2,262.03PMI applies at 5% (LTV 95%); not at 20% (LTV 80%)
5% down requires $34,000 cash and $2,686.16/mo P&I (+ PMI); 20% down requires $97,750 cash and $2,262.03/mo P&I (no PMI) — saving $424.13/mo but requiring $63,750 more upfront.
Savings timeline — $30,000 goal
Target: $30,000; current savings: $8,000; monthly saving: $900; savings rate: 4.5% annualMonthly rate r = 0.045 / 12 = 0.003750Month 1: $8,000 × 1.003750 + $900 = $8,030 + $900 = $8,930Continuing month by month until the total ≥ $30,000By month 23: balance ≈ $30,079 (approximate; exact via the engine)Years and months: 1 year 11 months
With $8,000 saved, adding $900/month at 4.5% annual rate, the $30,000 goal is reached in 23 months (1 year 11 months).
$600,000 home at FHA-minimum 3.5%
Home price: $600,000FHA 3.5% down: $600,000 × 0.035 = $21,000Closing costs at 3%: $600,000 × 0.03 = $18,000Total cash needed: $21,000 + $18,000 = $39,000Loan amount: $600,000 − $21,000 = $579,000Monthly P&I at 7%, 30 yr: 579000 × (0.07/12 × (1+0.07/12)^360) / ((1+0.07/12)^360−1)= 579000 × (0.005833 × 8.1165) / (8.1165−1) = 579000 × 0.0066530 = $3,852.10PMI does not apply to FHA loans (FHA uses UFMIP + annual MIP instead).Loan limit check: a $579,000 base loan is above the 2026 FHA one-unit floor of $541,287 (HUD Mortgagee Letter 2025-23), so it is FHA-eligible only in a county whose limit is at least $579,000.
A $600,000 purchase at 3.5% down requires $39,000 cash at closing and P&I of $3,852.10/month on a 30-year loan at 7% (before FHA mortgage insurance) — and a county FHA limit of at least $579,000.
Methodology
How a down payment actually affects your loan
Most buyers focus on the down payment percentage alone. The cash you actually need on closing day is the down payment plus closing costs — and the percentage you choose controls your monthly payment and whether you pay PMI for years.
Read sources and limitsWhat counts as a down payment, and why does the percentage matter?
A down payment is the portion of the purchase price you pay in cash at closing; the lender finances the rest. The loan-to-value (LTV) ratio is 100% minus your down payment percentage. A 20% down payment gives an 80% LTV; a 3% down payment gives a 97% LTV.
The LTV ratio affects three things directly: the loan amount (and therefore every monthly payment), whether private mortgage insurance (PMI) is required, and — in some programs — the interest rate the lender quotes. A higher down payment lowers the loan balance on which interest accrues over the life of the loan.
Program minimums are published requirements, not recommendations. Conventional loans backed by Fannie Mae or Freddie Mac allow as little as 3% down through HomeReady and Home Possible programs (eligibility applies). FHA loans require 3.5% with a credit score of 580 or above, or 10% with scores between 500 and 579. VA loans (for eligible veterans) and USDA loans (for eligible rural properties) allow 0% down; both require eligibility that the lender verifies.
When does private mortgage insurance (PMI) apply, and when does it end?
Conventional lenders require PMI when the down payment is below 20% — an LTV above 80% at origination. Under the Homeowners Protection Act (12 U.S.C. §4902) you may request cancellation when the balance reaches 80% of the original value, and it ends automatically at 78% on the original amortization schedule.
PMI premiums typically range from 0.2% to 2% of the original loan amount per year, varying by LTV, credit score, loan type and insurer. On a $350,000 loan at 97% LTV a rough estimate is $100–$200 per month; exact figures come from the lender's rate card and are not produced here. The calculator flags which down payment tiers trigger PMI so you can weigh the monthly premium against the extra cash required to reach 20%.
FHA loans carry their own insurance — an upfront mortgage insurance premium (UFMIP) and an annual MIP — under different rules. VA and USDA loans carry no monthly mortgage insurance. This calculator covers conventional PMI; use the FHA Loan Calculator or VA Mortgage Calculator for program-specific insurance figures.
How much are closing costs on top of the down payment?
Closing costs are fees and prepaid items due at settlement, separate from the down payment. The CFPB states that total closing costs typically run between 2% and 5% of the loan amount (or purchase price, depending on the fee). Common items include lender origination fees, appraisal, title insurance, escrow setup and prepaid property taxes and insurance.
The default in this calculator is 3% of the purchase price — the midpoint of the CFPB range — and it is editable. Your Loan Estimate (required by TRID within three business days of application) will list every fee; use that figure to replace the estimate. Some costs, such as the escrow prepaids, vary by closing date and local property-tax cycle, so even a Loan Estimate is an estimate.
Seller concessions and lender credits can offset closing costs; the calculator does not model those because they affect net cash rather than the gross requirement the lender underwrites. If you expect a seller credit, reduce the closing cost percentage accordingly.
How long will it take to save for a down payment?
The savings mode calculates the number of full months before a combination of your existing balance and your planned monthly saving reaches your down payment target. The model assumes monthly compounding at the annual rate you enter, and that each monthly deposit is made at the end of the month (an ordinary annuity).
The formula is a standard future-value calculation: the lump-sum balance today grows as FV = P × (1 + r)^n and each monthly saving contributes PMT × [(1 + r)^n − 1] / r, where r = annualRate / 12. The calculator adds the two and checks the combined total month by month until the target is reached, up to 50 years (600 months). If the goal is not reached within that horizon — for example, because no savings rate is entered — the result says so.
Common mistakes: using today's home price when the actual purchase is 18–24 months away (prices may rise); omitting the closing cost share of the cash requirement; and using the savings rate on a regular savings account when the balance will sit in a HYSA or money-market fund at a different rate. Enter the rate that matches where the money actually sits.
What does this down payment calculator not cover?
All results are illustrative estimates. The monthly P&I figure does not include property tax, homeowners insurance, HOA fees or PMI — use the Mortgage Calculator for a full PITI estimate. The closing cost figure is a percentage-based estimate; actual fees are itemised on your Loan Estimate.
This calculator does not model adjustable-rate mortgages, points, lender credits, seller concessions, gift funds (which have program-specific rules), or down payment assistance programs. It does not verify eligibility for any program — 3% conventional, 3.5% FHA, 0% VA or USDA — each of which has income, credit and property requirements.
Savings projections assume a constant rate and constant monthly contribution. A rate change, an irregular contribution or a market drawdown (if funds are not in cash) will shift the timeline. The projection is a planning tool, not a guarantee.
Down Payment questions
How much down payment do I need to buy a house?
The minimum depends on the loan program. Conventional loans backed by Fannie Mae or Freddie Mac allow as little as 3% down through HomeReady and Home Possible (income and credit eligibility applies). FHA loans require 3.5% with a 580+ credit score or 10% with a score of 500–579. VA loans (eligible veterans) and USDA loans (eligible rural properties) allow 0% down. A larger down payment lowers your loan amount, your monthly payment and — once you reach 20% — eliminates PMI on a conventional loan.
What is the 20 percent down payment rule?
20% is the threshold at which private mortgage insurance (PMI) is not required on a conventional loan. Putting 20% down means your LTV at origination is 80%, so the lender has equity protection without an insurer. It is a common guideline, not a legal requirement, and many buyers choose lower tiers to preserve cash for reserves, renovations or other goals. The PMI premium on a lower down payment is the cost of the trade-off.
What closing costs should I budget for?
The CFPB states that closing costs typically run between 2% and 5% of the loan amount. Common items include origination fees, appraisal ($300–$600 typically), title insurance and search, escrow or attorney fees, recording fees, and prepaids (homeowners insurance, property-tax escrow, prepaid interest). Your lender is required to provide a Loan Estimate within three business days of application listing every fee. The 3% default in this calculator is the midpoint of the CFPB range; replace it with your Loan Estimate figure once you have one.
Does a larger down payment lower my interest rate?
It can. Lenders typically price risk into the rate through loan-level price adjustments (LLPAs) that vary by LTV and credit score. A lower LTV (larger down payment) often qualifies for a lower rate tier. The magnitude varies by lender, market and credit profile. This calculator uses a single illustrative rate across all tiers; to see the rate impact accurately, get quotes at different LTV points from your lender.
What is the minimum down payment for a conventional loan?
The minimum is 3% of the purchase price through Fannie Mae HomeReady or Freddie Mac Home Possible for eligible borrowers. Standard conventional loans typically require 5% down. In both cases the lender will require PMI until the LTV falls to 80%. Not all lenders offer 3% down programs; confirm availability and eligibility criteria with your lender. These program minimums are cited from Fannie Mae and Freddie Mac guidance and are subject to program changes.
How long does it take to save a down payment?
It depends on the target amount, your current savings, your monthly saving and the rate on your savings account. For example, saving $900 per month starting from $8,000 at 4.5% annual reaches a $30,000 goal in roughly 23 months. Increasing the monthly saving by $200 shortens the timeline by roughly 4 months. The savings mode of this calculator lets you enter your own figures and adjust assumptions instantly.
Can closing costs be rolled into the loan?
On some loan types, yes. VA loans allow the VA funding fee to be financed into the loan amount. FHA allows the upfront MIP to be financed. Some lenders offer "no-closing-cost" options where the costs are either rolled into the loan balance or offset by a higher interest rate (lender credits). Rolling costs into the loan means paying interest on them over the full loan term, which increases the total cost. This calculator shows the cash-at-closing requirement; consult your Loan Estimate for the financed alternative.
What happens to my PMI when I reach 20% equity?
Under the Homeowners Protection Act (12 U.S.C. §4901), you can request PMI cancellation in writing when your loan balance reaches 80% of the original purchase price and you have a good payment history. The servicer must automatically cancel PMI when the balance reaches 78% of the original value based on the scheduled amortization, even without a request. Equity built through appreciation rather than loan paydown does not trigger automatic cancellation under the HPA, though some lenders allow cancellation based on a new appraisal.
Source notes
Method, sources & limitations
Every figure on this page comes from the formula above applied to the values you enter. Nothing is estimated from market data, and no result is a forecast. These are the sources behind the method and any fixed figures it uses:
- CFPB — "What are the typical closing costs for a home loan?" (Owning a Home)
- CFPB — "Owning a Home" down payment overview
- Fannie Mae — HomeReady Mortgage (97% LTV, 3% down)
- Freddie Mac — Home Possible Mortgage (97% LTV, 3% down)
- HUD — FHA Minimum Down Payment (Sec. 203(b))
- VA — Home Loan Guaranty Benefit
- 12 U.S.C. §4901 — Homeowners Protection Act (PMI cancellation)
Educational information only. Results are estimates produced from the assumptions you enter, and are not financial, tax, legal or medical advice. Check anything that matters against a qualified professional and the cited sources.