How much is a mortgage on a $300K house?

To buy a home for $300,000, the monthly mortgage payment ranges from about $1,500 – $2,400, depending on your down payment, mortgage type, loan term, and interest rate. Property tax, homeowners insurance premiums, mortgage insurance, and homeowners association fees will increase your total payment.

Learn more about how your mortgage type, loan term, and other factors affect the monthly and overall cost of buying a home for $300,000.

Key takeaways:

• Your loan type affects mortgage payment totals by requiring a minimum down payment and possibly mortgage insurance. It also will depend on interest rates, your loan term, and whether you choose a fixed or adjustable interest rate.
• Lenders typically bundle regular property taxes and homeowners insurance into your monthly statement, which makes your actual out-of-pocket bill higher than just the base loan payment.
• Improving your credit score before you apply or making a larger down payment are the easiest ways to lower your monthly costs and save money over time.

What determines your monthly mortgage payment?

How much you’ll pay your lender each month depends on a lot of factors, some of which you can control and some you can’t. Here are the primary factors affecting the cost of buying a $300,000 home.

Down payment

The minimum down payment on a house varies by loan type.

You need 3% down for a fixed-rate conventional loan,¹ 3.5% for an FHA loan, and 10% and up for a jumbo loan.

If you qualify, you can get a VA or USDA mortgage on a $300k house with no down payment.² Rocket Mortgage currently doesn’t offer USDA loans.

The larger your down payment, the less you need to borrow to buy a $300,000 home, and the lower your monthly payment will be.³

Your down payment also affects whether you need to pay for mortgage insurance.

You can estimate your down payment with the down payment calculator from Rocket Mortgage.

Closing costs

You’ll also have to pay closing costs on your loan, which typically range from 3% – 6% of your loan amount.

Loan term

The loan term is the length of your repayment term. The most common loan terms are 30 years and 15 years, but you can ask your lender for a custom loan term like the YOURgage^® from Rocket Mortgage.⁴

Shorter loan terms have a higher monthly payment, but you’ll pay off the loan more quickly and save money on interest. Longer loan terms save you money on the monthly payment but cost you more in overall interest.

Interest rate

The mortgage interest rate determines how much you pay the lender to borrow the principal to buy the home. Higher rates will increase your monthly payment, and lower rates will reduce it.

Interest rates vary depending on the loan type, term, and your personal finances. Shorter loan terms usually have lower interest rates. Good credit and a low debt-to-income ratio (DTI) can help you get a lower interest rate.

You can check today’s rates from Rocket Mortgage.

Mortgage interest is calculated using a process called amortization. This calculates a monthly payment that covers all interest accrued on your balance since your last payment, plus enough principal to pay off the entire loan by the end of the loan term. At the start of your loan term, most of your payment goes toward interest. You'll pay a little less interest with each payment, and by the end of your term, you'll be paying mostly principal.

The amortization calculator from Rocket Mortgage can demonstrate how an amortization schedule works.

Fixed-rate vs. ARM

A fixed-rate loan locks in your interest rate for the entire loan term, so your monthly payment for principal and interest will never change.

An adjustable-rate mortgage (ARM) usually has a fixed-rate for a specific number of years, usually 3, 5, 7, or 10. After that, the interest rate will adjust according to market conditions, usually every 6 or 12 months. Interest rate caps will limit how much your rate can change at the first adjustment, subsequent adjustments, and overall.

Property taxes

Your lender estimates your annual property tax bill, divides it by 12, and adds it to your monthly payment. This money is held in an escrow account until your taxes are due, and then your lender pays the bill on your behalf.

Tax rates vary depending on where you live. For example, the average mortgage payment in Indiana has very different tax rates compared with other states.

Homeowners insurance

Lenders require you to have homeowners insurance to protect the home against damage from fire, storms, or theft. The estimated cost also is divided into 12 installments, held in escrow, and paid on your behalf.

Mortgage insurance

Mortgage insurance protects your lender from losses if you default on your loan. What type and how much you have to pay depends on your loan type and down payment amount.

If you get a mortgage on a $300k house with 20% down, you avoid paying for private mortgage insurance (PMI). If your down payment is less, you must pay for PMI until you have 20% home equity. Then you can ask your lender to cancel PMI payments.

For an FHA loan, you pay up-front and annual mortgage insurance premiums (MIP). If your down payment is more than 10%, you can stop paying the annual MIP after 11 years. If your down payment is less than 10%, you pay MIP for the entire loan term.

How much is mortgage insurance on a $300k house? It usually adds $125 to $375 per month to your bill.

HOA fees

If your home is part of a homeowners association (HOA), you will have to pay HOA fees. These fees pay for neighborhood upkeep, such as community pools and landscaping. You usually pay these fees directly to the HOA, not through your monthly mortgage bill.

Breaking down the numbers for a $300K house

How much is a mortgage on a $300k house for 30 years at 6.75% interest? Here’s how much your monthly payment would be for principal and interest only with various down payment amounts.

And here’s how much you’d pay for a 15-year fixed-rate mortgage at 5.875% interest.

You can estimate payments for various mortgage scenarios using the mortgage calculator from Rocket Mortgage.

How to reduce your monthly mortgage payment

If the monthly numbers for a $300,000 house look too high for comfort, you can use these steps to lower your payment.

Make a larger down payment

The more money you put down up front, the less you need to borrow. A smaller loan means a lower monthly payment. Putting down 20% also eliminates the cost of PMI.

Improve your credit

Better credit and a higher credit score can help you get a lower interest rate. Before you apply, take time to check your credit report for errors, pay down existing debts, and make sure your bills are paid on time.

Compare loan types

Different loans have different benefits. If you are a veteran, a VA loan lets you buy with no down payment and no monthly mortgage insurance. An ARM might offer a lower rate for the first few years compared with a fixed-rate loan.

Choose a longer loan term

If a 15-year loan payment stretches your budget too thin, a 30-year loan will reduce your monthly bill. This gives you more room for other everyday expenses.

FAQ

Here are answers to common questions about buying a home for $300,000.

What income is needed to buy a $300,000 mortgage?

Using the 28/36 rule, you would need an annual income between about $66,000 and $104,400 to afford a $300,000 home. The exact income you need depends on how much other monthly debt you have.

Can a 70-year-old get a 30-year mortgage?

Yes. By law, lenders cannot deny a mortgage or change the terms based on your age. As long as you meet the standard requirements for income, credit, and debt, you can qualify for a 30-year mortgage.

What credit score is needed to buy a $300K house?

It depends on the loan type. The 620 minimum credit score was dropped in 2025 for conventional loans, but some lenders set their own requirements. Rocket Mortgage requires a credit score of 580 and a 3.5% down payment for an FHA loan. Other lenders approve FHA loans with a credit score of 500 – 579 with a 10% down payment.⁵ A score of 740 or higher will help you get a lower interest rate.

The bottom line

The exact cost of a mortgage on a $300,000 house depends on many factors. You’ll need to explore what works for your finances, how much you can afford for a down payment, which loan type you can qualify for, and current interest rates. You’ll also need to be prepared to pay for closing costs, property taxes, homeowners insurance, mortgage insurance, and HOA fees.

If you’re ready to take the next step, explore your borrowing options today with Rocket Mortgage.

¹ The 3% down payment option is only available on certain conventional loan products and is not available in all states. Additional terms and conditions may apply.

² Rocket Mortgage is a VA-approved lender, not endorsed or sponsored by the Dept. of Veterans Affairs or any government agency.

³ Any figures, interest rates, loan examples, and market data referenced in this article are hypothetical or aggregated for educational purposes only. They are not intended to reflect current pricing, available terms, or personalized loan options for any consumer. This content does not constitute an advertisement of credit terms, a solicitation or offer to extend credit, or a rate quote under federal or state lending laws. Actual mortgage rates and terms are determined by individual financial qualifications, property characteristics, market conditions, and other factors, and are subject to change without notice.

If you are seeking current, real-time mortgage rate information please refer to the official live rate information and product details published at RocketMortgage.com/mortgage-rates, where current pricing and various loan terms are made available.

⁴ Not available on FHA, VA or adjustable-rate mortgages. Available for fixed rate conventional products only.

⁵ To qualify for this offer, you must meet all standard FHA eligibility requirements. In addition, your total mortgage payment, including taxes and insurance, cannot exceed 38% of your income, your debt-to-income (DTI) ratio cannot exceed 45%, and you must have 12 months of verifiable housing history immediately prior to your application, no late payments 30 days or greater in the last 12-months, and no derogatory marks on your credit report. Not available on jumbo loans. Asset statements may be needed, no more than 1 day of non-sufficient fund fees are allowed in the most recent 2 months prior to application. Additional restrictions/conditions may apply.