How to Save Money for a House Down Payment

A down payment goal is one of the more motivating savings targets to work toward, mostly because it's concrete — there's a real number, a real timeline, and a real outcome at the end of it. That concreteness also makes it one of the easier goals to actually plan for with math, rather than vague intentions.

Step 1: Know your real target number

Down payment requirements vary by loan type and lender, but a common reference point is 20% of the home's purchase price (lower percentages are often possible, sometimes with added insurance costs). If you're eyeing a $400,000 home with a 20% down payment, your target is $80,000 — that's the number to plan around, not the home price itself.

Step 2: Set a timeline

Be realistic about when you actually want to buy. A 3-year timeline and a 10-year timeline produce very different required monthly savings amounts for the same target — and an unrealistically short timeline is one of the most common reasons people abandon a savings goal partway through.

Step 3: Work out the required monthly contribution

This is where most people either guess or avoid the math entirely. The Savings Goal Calculator does this directly: enter your target amount, what you've already saved, your timeline, and an expected interest rate, and it solves for the monthly contribution needed to get there — accounting for the fact that what you've already saved keeps growing too.

Where to actually keep the money

For a goal with a defined, relatively short timeline (under 3-5 years), a high-yield savings account is generally more appropriate than investing in the stock market — market volatility could mean your down payment fund is meaningfully smaller right when you need it, which is a risk most people aren't willing to take for a near-term, specific goal.

If the monthly number feels too high

Three levers can bring it down: extending the timeline, targeting a smaller down payment percentage (with the trade-off of added mortgage insurance costs), or increasing your starting savings before the regular contribution phase begins. Adjusting any of these in the calculator shows immediately how much the required monthly number shifts.