Down Payment Savings Calculator
Calculate how long it will take to save for a home down payment and what monthly savings you need.
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How to use this calculator
Each month the current balance earns interest at the monthly rate (annual rate ÷ 12), then the monthly savings amount is added. This compounds until the balance reaches the down payment target.
- 1
Enter your target home price and the down payment percentage you are aiming for (typically 10–20%).
- 2
Input how much you have already saved and how much you can set aside each month toward the goal.
- 3
Set the expected annual return on your savings account or investment to see how compound interest accelerates your timeline.
Frequently asked questions
How much down payment do I need?
The minimum down payment varies by country and loan type. In the US, conventional loans often require 5–20%, FHA loans as low as 3.5%. In Australia, 20% avoids Lender's Mortgage Insurance (LMI). In the UK, 5–10% is common for first-time buyers. A 20% down payment is the gold standard as it eliminates mortgage insurance and reduces your loan amount.
Where should I save my down payment fund?
For timelines under 2 years, high-yield savings accounts or money market funds are safest. For 3–5 year timelines, short-term bonds or CD ladders offer slightly higher returns with manageable risk. Avoid volatile investments like equities for money you need on a specific date.
What if the calculator shows more than 600 months?
If your current savings and monthly contributions are insufficient to reach the target, you may need to increase your monthly savings, lower the target home price, reduce your down payment percentage, or seek a higher-yielding savings vehicle. The calculator caps at 600 months (50 years) to prevent runaway calculations.
How Long Will It Take to Save Your Down Payment?
The Power of Starting Early with Compound Interest
Even modest monthly savings grow significantly faster when earning compound interest. A $20,000 starting balance growing at 4.5% annually while contributing $1,000 per month reaches an $80,000 down payment target in under 5 years — with thousands earned in interest. Starting even 12 months earlier can shave months off your timeline and meaningfully reduce the total you need to contribute out of pocket.
Strategies to Reach Your Down Payment Faster
The two levers for accelerating your savings timeline are increasing monthly contributions and maximizing your savings rate. Automating transfers on payday removes the temptation to spend first. Government first-home buyer schemes in many countries offer tax-advantaged savings accounts (like the UK's Lifetime ISA or Australia's First Home Super Saver Scheme) that can boost your effective return significantly. Review your target periodically as home prices and interest rates change.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →