How Much Does a $300K Mortgage Cost Per Month?

Buying a home? That’s exciting. But let’s be real, what do you actually pay each month? That’s where things get murky.

If you’re looking at a $300,000 mortgage, you’re probably wondering: “What’s my real monthly payment going to be?” Not just the loan itself, but everything, interest, taxes, insurance, maybe even PMI.

Let’s break it all down, dollar by dollar, so there are no surprises when the first bill hits.

A $300,000 mortgage could cost anywhere from $1,800 to $2,500+ per month, depending on your rate, down payment, taxes, insurance, and loan term. We’ll help you understand where your money goes and how to make smart decisions to keep payments low.

Key Takeaways:

• Understand monthly mortgage costs for a $300,000 home loan.
• Get clarity on principal, interest, taxes, and insurance (PITI).
• Learn how rates, down payments, and credit scores impact your payment.
• No VA loan required, applies to all homebuyers.
• Explore commission-free homebuying with trusted partners.

Here’s what goes into your payment:

• Principal & Interest: This is your loan amount and the interest charged.
• Taxes: Property taxes vary by location, typically 0.7% to 2.5% annually.
• Insurance: Homeowner’s insurance and (if needed) mortgage insurance.
• HOA Fees: Optional but important if buying in a managed community.

Loan Amount: $300,000 Down Payment: 5% ($15,000) Interest Rate: 6.5%Term: 30 years

A lower rate means big savings over time. Your credit score, income, and market conditions influence this.

• 30-Year Fixed: Lower monthly payments, higher total interest.
• 15-Year Fixed: Higher monthly payments, but much less interest over time.

More upfront = less to borrow. A 20% down payment helps you skip PMI (private mortgage insurance).

States like New Jersey or Texas have higher taxes, which impact your escrow payment.

Usually required if your down payment is less than 20%.

• Improve your credit score before applying.
• Compare lenders to shop for lower rates.
• Opt for a longer term for smaller monthly payments (though you’ll pay more interest).
• Put more down to avoid PMI.
• Explore commission-free platforms that save you thousands upfront.

Let’s say you qualify for a 6.5% rate, but your neighbor gets 5.9%. Over 30 years, that 0.6% difference could cost or save you over $30,000.

Don’t just look at the home, understand the whole picture. It’s not about affording a house; it’s about affording the payment, long-term.

• Be My Neighbor — A tech-enabled mortgage platform helping all types of buyers navigate the process with expert guidance. (NMLS #1743790)
• reAlpha — A commission-free homebuying platform that saves you on agent fees, with tech-driven tools to help analyze your purchase.

Most lenders recommend that your monthly housing payment not exceed 28% of your gross income. That means you should earn about $90,000/year (or $7,500/month) to safely afford this mortgage.

At 6% over 30 years, your principal and interest alone would be about $1,799. Taxes, insurance, and PMI could raise it to $2,300+.

Yes. Many lenders offer 3-10% down payment options. But you'll likely need mortgage insurance (PMI).

Not necessarily. Once your loan-to-value ratio (LTV) drops below 78%, you can often request PMI cancellation.

You can refinance to secure a lower rate, reduce your payment, or shorten your loan term.

Owning a home doesn’t start with a down payment, it starts with clarity. Understanding what a $300K mortgage really costs each month empowers you to make confident, well-informed decisions.

Want to save thousands on your home purchase? Consider reAlpha, a commission-free homebuying platform that helps reduce upfront costs. Or explore Be My Neighbor, a mortgage marketplace guiding you with licensed experts and smart tools.

No matter your background or loan type, you deserve a transparent, trustworthy mortgage experience.

• All mortgage rates and payment estimates are for educational purposes only and are subject to change without notice.
• Actual loan terms vary based on borrower credit, income, loan type, and property specifics.
• NMLS ID for Be My Neighbor: #1743790
• This blog is not an offer to extend credit or a loan commitment.
• Commission-free refers to buyer agent commission fees, which may be waived or rebated depending on the property and location.
• All financial decisions should be made in consultation with licensed professionals.