Plan the down payment on your dream home with a realistic timeline.

A dream home purchase is usually the largest single savings goal most households attempt. Deposits in high-cost markets can exceed 100,000. Even in average markets, 25,000-50,000 deposit is common. This scale requires multi-year planning — a savings plan that compounds over 3-7 years.

The plan has three leverstarget amount (deposit percentage × property price), monthly contribution (what you can sustain), and time (when you want to buy). Any two constrain the third. This calculator solves for time given target and contribution — useful when you know your monthly capacity and want to see when the goal becomes achievable.

Rate matters moderately at 3-7 year horizons. Cash savings at 4% vs investment at 7% produces meaningful but not dramatic differences. Cash is usually preferred for deposits under 3 years out (volatility risk). Over 5+ years, investment allocation can work well but introduces timing risk near the target date.

How to use it

Enter target deposit, current savings toward the home, monthly contribution, and expected return rate. The tool shows months to target, projected balance, and total contributed.

What the result means

Months to target is when your plan reaches the deposit amount. If this is longer than desired, options: larger monthly contribution, lower target (smaller home or lower deposit percentage), or higher expected return (with appropriate risk). The total contributed vs final balance shows compound growth contribution.

Planning tool, not financial advice.

Run it with sensible defaults

Using target deposit amount of 50,000, current savings of 10,000, monthly contribution of 800, expected return of 4%, the calculation works out to 3y 9mo. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Target Deposit Amount, Current Savings, Monthly Contribution, and Expected Return — do not pull with equal force. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

How the math works

Iterates monthly compounding until balance reaches target. Capped at 100 years to prevent runaway loops on unachievable plans. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".

Using this to think, not predict

Financial plans are wrong by month six — new information arrives and reshapes the picture. The point of running projections isn't to be right in ten years; it's to be less wrong in the decision you're making this week.

What this doesn't capture

Real plans get re-run against new information every year or two. The result here is a reasonable direction, not a destination. Treat it as a starting point for thinking, not a commitment to a specific future.