Down Payment Savings Calculator: Monthly Amount to Save
Work out how much to save each month to have a home down payment ready by the date you plan to buy.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | Monthly contribution | Total contributed | Growth toward goal |
|---|---|---|---|
| $60k · 3% · 5yr | $928.12 | $55,687.29 | $4,312.71 |
| $30k · 2.5% · 3yr | $803.34 | $28,920.29 | $1,079.71 |
| $80k · 4% · 7yr | $826.84 | $69,454.38 | $10,545.62 |
| $45k · 3.5% · 4yr | $874.77 | $41,988.96 | $3,011.04 |
How This Calculator Works
Enter the down payment you are aiming for, the rate your savings earn, and the years until you want to buy. The calculator solves for the monthly contribution that reaches the goal, and splits the target into your deposits and investment growth.
The Formula
Required Monthly Saving (Sinking Fund)
FV = goal amount, r = monthly rate (annual ÷ 12), n = number of months
Worked Example
Saving toward a $60,000 down payment over 5 years at a 3% return takes about $928 a month. Your deposits make up roughly $55,700, and growth adds the remaining $4,300 of the goal.
Key Insight
Money you will need within a few years is best kept safe rather than invested, because a market dip just before you buy could shrink the down payment. A short horizon means the monthly contribution, not the rate, does the work.
Frequently Asked Questions
How big a down payment do I need?
A 20% down payment avoids private mortgage insurance on most loans, but many programs accept far less. Set the goal to the figure your loan type and budget require.
Where should I keep down payment savings?
For a purchase within a few years, a safe account such as a high-yield savings account or short-term CD protects the money from a market drop right before you buy.
Should I invest the down payment savings?
For a near-term purchase, generally no — a downturn could cut the fund just when you need it. A longer horizon allows more room for investment.
What if home prices rise while I save?
A rising market raises the down payment you need. Revisit the goal periodically and compare it against the cited median home price benchmark.
Does this include closing costs?
No. Closing costs are separate and typically add a few percent of the price. Consider raising the goal to cover them alongside the down payment.
Related Calculators
Data Sources & Benchmarks
This calculator draws on 3 independent, dated sources. The starting values for savings return rate are taken from the benchmarks below and refresh whenever the snapshots are updated.
Methodology & Review
The required monthly contribution solves the future-value-of-an-annuity formula for the payment that reaches the down payment target. The model compounds monthly at a steady rate.
Written by Ugo Candido · Last updated May 17, 2026.