Putting 20% down on a $600,000 house means writing a check for $120,000. This is squarely upper-middle market territory — in most metros, $600K buys a four-bedroom home in a good school district or a well-located urban condo. The buyers shopping at this level typically have established careers and dual incomes, but $120,000 in cash is still a serious commitment that takes strategic planning to accumulate.
Down Payment Amounts on a $600K House
| Down Payment % | Amount | Loan Amount | PMI Required? |
|---|---|---|---|
| 3% | $18,000 | $582,000 | Yes |
| 5% | $30,000 | $570,000 | Yes |
| 10% | $60,000 | $540,000 | Yes |
| 15% | $90,000 | $510,000 | Yes |
| 20% | $120,000 | $480,000 | No |
| 25% | $150,000 | $450,000 | No |
At $600K, you are still comfortably within conforming loan limits nationwide, which means conventional loan rates are available. However, you are now at a price where the dollar amounts between down payment tiers become quite large. The difference between 5% and 20% is $90,000 — enough to fund a graduate degree, a year’s salary at many jobs, or a substantial investment portfolio.
Some buyers at this price point come from a previous home sale and are rolling equity forward. If that describes you, applying your proceeds as a 20-25% down payment is usually the simplest path. If you are a first-time buyer saving from scratch, the calculus is different and the advice below matters more.
How Down Payment Affects Your Monthly Mortgage
At 6.5% interest on a 30-year fixed mortgage:
| Down Payment | Loan Amount | P&I Payment | PMI (~0.5%) | Total Payment |
|---|---|---|---|---|
| 3% ($18,000) | $582,000 | $3,678 | $243 | $3,921 |
| 5% ($30,000) | $570,000 | $3,602 | $238 | $3,840 |
| 10% ($60,000) | $540,000 | $3,413 | $225 | $3,638 |
| 20% ($120,000) | $480,000 | $3,033 | $0 | $3,033 |
Note: PMI is estimated at 0.5% annually. Actual rates vary by credit score and lender.
Putting 20% down saves $807/month compared to 5% down (before taxes and insurance).
An $807 monthly savings translates to $9,684 per year. That is real money — enough to max out a Roth IRA and still have $2,684 left over. Over 10 years, you save roughly $97,000 in total payments, which is nearly the entire difference in down payment amounts. In other words, the larger down payment essentially pays for itself within a decade through lower monthly costs.
Add property taxes ($5,000-$12,000/yr depending on state) and homeowners insurance ($2,000-$4,000/yr), and your total monthly housing cost ranges from $3,600 with 20% down to $4,700+ with 3% down. At the higher end, you need a household income above $200,000 to keep housing costs within the standard 28% guideline.
PMI Costs at the $600K Level
PMI on a $600K home with 5% down costs $160-$280 per month depending on your credit profile. With a credit score above 740, you will pay toward the lower end. Below 700, expect premiums at the higher end or even above $280.
At $240/month, PMI on a $570,000 loan costs $2,880 per year. Over 8-10 years (the typical time to build 20% equity through payments alone), that totals $23,000-$29,000. This is the hidden cost of a smaller down payment — money that goes to an insurance company rather than building your equity.
One approach that works well at this price point: an 80/10/10 loan structure. You put 10% down ($60,000), take a primary mortgage for 80% ($480,000), and a second mortgage (home equity loan or line of credit) for the remaining 10% ($60,000). This avoids PMI entirely because the primary loan is at 80% loan-to-value. The trade-off is a higher rate on the second loan, but the combined cost is often lower than a single loan with PMI.
Total Interest Paid Over Loan Life
| Down Payment | Loan Amount | Total Interest (30-yr, 6.5%) |
|---|---|---|
| 5% ($30,000) | $570,000 | $726,400 |
| 10% ($60,000) | $540,000 | $688,200 |
| 20% ($120,000) | $480,000 | $611,500 |
20% down saves $114,900 in interest compared to 5% down.
The numbers at this level are staggering: a $570,000 loan at 6.5% generates over $726,000 in interest over 30 years. You end up paying $1.296 million total on a $600K home. This is why wealthy buyers tend to put more down — the interest savings at higher loan amounts are enormous.
If the 30-year interest figures give you pause, consider a 15-year mortgage. On a $480,000 loan at 6.0% (15-year rates are typically 0.5% lower), the monthly payment jumps to $4,050 but total interest drops to $249,000 — saving you $362,500 compared to the 30-year option. That is an extreme example, but even a 20-year term offers a meaningful middle ground.
How Long to Save $120,000 for 20% Down
| Monthly Savings | Time to $120,000 |
|---|---|
| $1,000/month | 10 years |
| $1,500/month | 6.7 years |
| $2,000/month | 5 years |
| $3,000/month | 3.3 years |
| $4,000/month | 2.5 years |
If you are targeting a $600K home, your household income is likely $150,000+. At that level, saving $2,000-$3,000/month for a down payment is feasible if you are disciplined about lifestyle choices. The challenge is that many households earning $150K+ also have higher fixed expenses — student loans from advanced degrees, two car payments, childcare costs, and higher tax burdens.
Be honest about what you can sustain. If saving $3,000/month means cutting your retirement contributions to zero, that is a poor trade-off. A smaller down payment with consistent retirement saving is usually better than draining all savings into the house.
What Income Do You Need for a $600K House?
| Down Payment | Est. Monthly Housing Cost | Income Needed (28% rule) |
|---|---|---|
| 5% ($30,000) | ~$4,540 | ~$194,600/yr |
| 10% ($60,000) | ~$4,310 | ~$184,700/yr |
| 20% ($120,000) | ~$3,750 | ~$160,700/yr |
These include estimated property taxes (~$7,000/yr) and homeowners insurance (~$2,600/yr). At the $600K level, lenders are thorough — expect to document income history, assets, and employment stability. If your income is variable (commissions, bonuses, self-employment), lenders will typically average two years of tax returns.
Closing Costs and Total Cash Needed
Closing costs on a $600K purchase run $12,000 to $24,000. Add that to your down payment and you need $132,000-$144,000 at closing with 20% down, or $42,000-$54,000 with 5% down.
After closing, keep at least $15,000-$25,000 in liquid reserves. A $600K home comes with proportionally higher maintenance costs: HVAC replacements run $5,000-$12,000, roof repairs $8,000-$20,000, and even minor plumbing or electrical work can cost $1,000-$3,000. The standard rule of thumb is to budget 1% of home value per year for maintenance — that is $6,000/year or $500/month on a $600K home.
Should You Put 20% Down on a $600K House?
Put 20% down if you are rolling equity from a previous home, you have high savings and no other major financial goals competing for the cash, or you want to maximize your negotiating position in a competitive market (sellers often prefer buyers with larger down payments as it signals financial strength).
Put 10-15% down if you have good income and want to keep capital available for investments, renovations, or other goals. The 80/10/10 structure can eliminate PMI while keeping your primary mortgage competitive.
Put 5% down if home prices are rising and getting into the market outweighs the PMI cost, or if your income trajectory is strong and you expect significant raises or bonuses in the coming years. At this price point, make sure your emergency fund is robust — being house-poor on a $600K mortgage is an uncomfortable place to be.
Related Guides
- Down payment on a $500K house
- Down payment on a $750K house
- $600K mortgage monthly payment
- Income needed for $600K house
- How much house on $200K salary
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