How to Save for a House Down Payment: The Complete Plan

Starting With the Right Number

Before you save a single dollar, you need a target. The answer depends on:

1. Your target home price — what homes actually cost in your market
2. Your down payment percentage — 3%, 5%, 10%, or 20%
3. Your timeline — when you want to buy

The conventional wisdom is 20% down to avoid Private Mortgage Insurance (PMI). But many buyers put down 3–10% — especially first-time buyers — and buy sooner. Neither is universally right.

Down Payment Options by Loan Type

The PMI Calculation

PMI typically costs 0.5–1.5% of the loan amount per year, added to your monthly payment. On a $400,000 home with 5% down ($20,000), you borrow $380,000. PMI at 1% = $3,800/year, or $317/month.

Putting 10% down instead ($40,000) on the same home eliminates or dramatically reduces PMI. Run the math for your situation.

Calculate what you can afford →

Building Your Savings Target

Example calculation:

• Target home price: $450,000
• Down payment goal: 10% = $45,000
• Plus closing costs (2–5% of purchase price): ~$9,000–$22,500
• Total target: ~$54,000–$67,500
• Timeline: 3 years (36 months)
• Required monthly savings: $1,500–$1,875/month

If that monthly number is out of reach at your current income, your options are:

1. Extend the timeline
2. Lower the target home price
3. Increase income
4. Reduce the down payment percentage

Where to Keep Your Down Payment Savings

The right account depends on your timeline:

Never put a down payment you need in 1–2 years into the stock market. If markets drop 20–30% (as they do periodically), you may need to delay your purchase or accept a worse outcome.

Compare high-yield savings accounts →

Accelerating Your Down Payment

Automate It

Set up a separate savings account specifically labeled "Down Payment" and automate a transfer on payday. Separate from your emergency fund — commingling goals makes both harder to track.

First-Time Homebuyer Programs

Many buyers leave money on the table by not researching assistance programs:

• State first-time homebuyer programs: Many states offer down payment assistance grants or low-interest second mortgages. Search "[your state] first-time homebuyer program."
• HUD-approved programs: Available in most cities for income-qualifying buyers
• Employer programs: Some employers offer homebuyer assistance as a benefit

Roth IRA First-Home Exception

You can withdraw up to $10,000 in earnings from a Roth IRA penalty-free for a first home purchase (you can always withdraw contributions penalty-free). If you and a spouse each qualify, that is $20,000 additional without early-withdrawal penalty.

Down Payment Gifts

Most loan types allow down payment funds to be a gift from a family member. A gift letter is required documenting that no repayment is expected.

Windfalls and Lump Sums

Tax refunds, bonuses, and inheritance funds deposited directly into the down payment account can dramatically shorten your timeline. A $5,000 tax refund moved directly to savings shortens a 3-year plan by about 3 months.

Building the Monthly Budget for Homeownership

Many first-time buyers focus entirely on saving the down payment and underestimate ongoing homeownership costs:

• Mortgage payment (principal + interest)
• Property taxes (typically 1–2% of home value per year)
• Homeowners insurance (typically $1,000–$2,500/year)
• PMI (if applicable)
• Maintenance and repairs (budget 1% of home value per year)
• HOA fees (if applicable)

A $450,000 home at today's rates with 10% down carries total monthly housing costs of roughly $3,500–$4,500 including all the above. Make sure your income supports that number before committing.

Frequently Asked Questions

Should I put 20% down or buy sooner with less? It depends on your market, income stability, and how fast prices are rising. In rapidly appreciating markets, buying sooner with 5–10% down and paying PMI for a few years may outperform waiting 3–5 years to save 20%. In flat or declining markets, waiting to put more down reduces risk.

Does it hurt to use retirement savings for a down payment? For Roth IRAs, the $10,000 first-home exception is purpose-built for this. Using a traditional IRA or 401(k) is generally not recommended — you lose the tax-advantaged compounding and pay taxes plus penalties.

How long does it typically take to save for a down payment? The median first-time homebuyer takes 4–7 years to save for a down payment. With aggressive automation and income growth, motivated buyers can do it in 2–3 years on moderate incomes in mid-tier markets.