If you're thinking about buying a $900,000 home in San Diego, a household income of around $245,000 to $263,000 a year is a reasonable starting point if you have 20% down.
That means putting $180,000 down and paying about $6,135 a month for your mortgage, property taxes, and homeowners insurance.
But you don't necessarily need to earn that much to qualify for a mortgage. Some buyers may qualify with less income, depending on their debt, down payment, and financial situation.
These income estimates are budgeting guidelines, not minimum salaries required to qualify for a mortgage.
The calculations use a 30-year fixed mortgage at 7.4%, based on Freddie Mac's national average reported October 8, 2026. Your actual mortgage rate and costs may be different.
How Much Salary Do You Need for a $900,000 House?
The amount you put down makes a big difference in your monthly payment and how much income you'll want to earn.
With 20% down ($180,000): You would borrow $720,000. Your estimated monthly housing payment would be approximately $6,135. To keep that payment around 28% to 30% of your income before taxes, you'd need approximately $245,400 to $262,900 a year.
With 10% down ($90,000): You would borrow $810,000. Including estimated mortgage insurance, your monthly housing payment would be approximately $7,096. That brings your suggested household income to approximately $283,800 to $304,100 a year.
With 5% down ($45,000): You would borrow $855,000. Including estimated mortgage insurance, your monthly housing payment would be approximately $7,426. Using the same budgeting guideline, you'd need approximately $297,000 to $318,300 a year.
All three examples use the same 7.4% interest rate for comparison. They also assume $900 per month in property taxes and $250 per month for homeowners insurance.
The 10% and 5% down examples include estimated private mortgage insurance, or PMI, at 0.5% of the loan amount per year. PMI is an additional cost that generally applies to conventional mortgages with less than 20% down.
These are planning estimates. Actual mortgage rates, property taxes, insurance costs, and PMI premiums can vary.
What Would Your Monthly Mortgage Payment Be?
Let's say you buy a $900,000 home with 20% down.
You would put down $180,000 and borrow $720,000.
At a 7.4% interest rate over 30 years, your monthly mortgage principal and interest payment would be approximately $4,985.
Add an estimated $900 for property taxes and $250 for homeowners insurance, and your total estimated monthly housing payment becomes $6,135.
But that's not the full cost of owning a home.
You'll also need money for utilities, repairs, maintenance, and HOA fees if the property has them.
For example, if you set aside $750 a month for maintenance, your estimated monthly ownership budget would increase to $6,885 before HOA fees and utilities.
That $750 is a suggested savings allowance based on 1% of the home's value per year, not a fixed monthly bill.
Can You Buy a $900K Home With a Lower Salary?
Yes, it's possible. You don't automatically need to earn $245,000 to qualify for a $900,000 home.
Lenders look at how much you earn and how much you already owe each month.
They use something called your debt-to-income ratio, or DTI. It's the percentage of your monthly income before taxes that goes toward required debt payments, including your proposed housing payment.
For example, if you earn $15,000 a month before taxes and your total required debt payments are $6,000, your DTI is 40%.
Using the estimated $6,135 housing payment in this article, a buyer with no other monthly debt would need approximately $171,000 in annual income to have a 43% DTI.
If that buyer also had $1,000 in other monthly debt payments, the income needed at the same DTI would increase to approximately $199,000.
These are examples, not guaranteed mortgage approval amounts. Some loan programs allow higher DTI ratios, while others have stricter requirements.
Your credit, savings, employment income, and loan program also matter.
And remember, just because a lender approves a payment doesn't mean it will feel comfortable. You still need room in your budget for groceries, transportation, savings, and everyday expenses.
How Much Money Do You Need Saved to Buy a $900K Home?
Your down payment isn't the only money you'll need.
You'll also pay closing costs, which may include lender fees, title services, prepaid expenses, and other costs related to the purchase.
Closing costs commonly range from about 2% to 5% of the purchase price. For a $900,000 home, that's approximately $18,000 to $45,000.
With 20% down, you'd need approximately $198,000 to $225,000 for your down payment and estimated closing costs combined.
With 10% down, you'd need approximately $108,000 to $135,000.
With 5% down, you'd need approximately $63,000 to $90,000.
These estimates don't include moving costs, immediate repairs, or savings you should keep after buying.
Your actual cash needed at closing can also change based on deposits, seller credits, prepaid expenses, and your specific loan terms.
The goal is to have enough money to buy the home without using up all your savings.
How Do San Diego Property Taxes Affect Your Payment?
Property taxes are an important part of your monthly housing costs.
In California, the base property tax rate is generally 1% of the property's assessed value. Additional taxes and assessments can increase the total bill.
For this article, we're using an estimated property tax rate of 1.2% a year.
On a $900,000 home, that's approximately $10,800 annually, or $900 a month.
However, some San Diego properties have additional charges called Mello-Roos taxes.
Mello-Roos helps pay for certain public improvements or services, such as roads, schools, parks, and infrastructure. Not every property has these charges, and the amount varies.
It's also important to know that the seller's property tax bill may be much lower than what you'll pay.
When a home changes ownership, its assessed value will generally be updated based on the purchase price, subject to applicable exceptions. You may also receive a supplemental property tax bill.
Before buying, check the property's actual taxes and assessments and estimate what you'll owe after the purchase.
What If the Home Has HOA Fees?
Some condos, townhomes, and houses in planned communities have monthly homeowners association fees.
These fees may cover shared expenses such as landscaping, common-area maintenance, amenities, or certain insurance costs.
Let's say the $900,000 home you're considering has a $500 monthly HOA fee.
Your estimated monthly housing payment would increase from $6,135 to $6,635.
If you're trying to keep housing costs at 30% of your income before taxes, that extra $500 a month would increase your suggested annual income by approximately $20,000.
Before purchasing, find out how much the HOA charges, what the fees cover, and whether the association has any planned special assessments.
Can You Afford a $900K House on a $200K Salary?
Possibly, especially if you have 20% down and limited debt.
If your household earns $200,000 a year, your monthly income before taxes is approximately $16,667.
With an estimated monthly housing payment of $6,135, about 36.8% of your gross income would go toward housing.
If you also had $1,000 in other monthly debt payments, your total debt-to-income ratio would be approximately 42.8%.
That may meet the requirements of some mortgage programs, but whether the payment is comfortable depends on your take-home pay, savings, and other expenses.
Can You Afford a $900K House on a $150K Salary?
Buying a $900,000 home on a $150,000 salary would be more challenging under the assumptions used here.
Your monthly income before taxes would be $12,500.
An estimated $6,135 housing payment would take up approximately 49.1% of your gross income, before any other debt payments.
That could make mortgage approval difficult and leave less room for everyday expenses and savings.
A larger down payment, qualifying income from a co-borrower, or a lower purchase price could make the home more affordable.
Do You Need a Jumbo Loan for a $900K Home in San Diego?
Not necessarily.
A jumbo loan is a mortgage that exceeds the conforming loan limit for the property's location and type.
The key number is how much you borrow, not simply the price of the home.
For 2026, the conforming loan limit for a one-unit property in San Diego County is $1,104,000.
With 20% down on a $900,000 home, you would borrow $720,000. With 5% down, you would borrow $855,000.
Both amounts are below that limit, so you wouldn't automatically need a jumbo loan. You would still need to meet the lender's other requirements.
Should You Wait for Home Prices or Mortgage Rates to Drop?
Waiting can make sense if it gives you more time to save, reduce debt, or improve your financial situation.
But there's no guarantee that home prices or mortgage rates will fall.
For example, buying a $900,000 home with 20% down at 7.4% would mean paying approximately $4,985 a month in mortgage principal and interest.
If the home's price increased to $945,000 but the mortgage rate dropped to 6.5%, the monthly principal and interest payment would be approximately $4,778.
You'd need a larger down payment, and other ownership costs could increase, but the lower rate would reduce the principal and interest payment.
This is a hypothetical example, not a prediction of the San Diego housing market.
Instead of trying to time the market perfectly, focus on whether the home fits your budget, how long you plan to live there, and how much financial flexibility you'll have after buying.
Frequently Asked Questions
How much income do you need to buy a $900,000 home in San Diego?
With 20% down, approximately $245,400 to $262,900 in annual household income is a reasonable budgeting target under the assumptions used here. Some buyers may qualify with less.
Do you need 20% down to buy a $900K house?
No. Some qualified buyers can purchase with 5% or 10% down, depending on the loan program. A smaller down payment generally increases your monthly payment and may require mortgage insurance.
Can two people combine their incomes to qualify?
Yes. If two people apply together, a lender can consider both qualifying incomes. For example, two people earning $125,000 each would have $250,000 in combined annual gross income, assuming both incomes qualify.
How much should you save for home maintenance?
One common budgeting guideline is around 1% of the home's value each year. For a $900,000 home, that's approximately $9,000 annually, or $750 per month. Actual maintenance costs can vary considerably.
Final Thoughts: How Much Should You Earn to Buy a $900K Home?
If you're buying a $900,000 home in San Diego, a household income of approximately $245,000 to $263,000 a year with 20% down is a reasonable starting point.
That assumes an estimated monthly housing payment of $6,135, including mortgage principal and interest, property taxes, and homeowners insurance.
Your actual income target could be higher or lower depending on your down payment, mortgage rate, existing debt, HOA fees, and other expenses.
Before making an offer, figure out what monthly payment fits your budget, how much money you'll need upfront, and how much savings you'll have left afterward.
The goal isn't just to qualify for a $900,000 home. It's to enjoy living in it without constantly worrying about the payment.
Call Alexander Pfleger at 619-339-7334 to discuss your options.
Sources
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Freddie Mac — Primary Mortgage Market Survey — National mortgage rate data.
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Consumer Financial Protection Bureau — Buying a House — Mortgage affordability, closing costs, and loan guidance.
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San Diego County Treasurer-Tax Collector — Property taxes and special assessments.
All mortgage payments, income estimates, insurance costs, and property tax figures are based on the assumptions described above. Actual costs and loan qualifications vary by buyer and property.