A 1% increase in mortgage rates feels small until you do the math. On a $400k loan, it adds $250+/month and reduces your buying power by roughly $40,000. This guide shows exactly how rate changes affect your monthly payment and the maximum home price you can afford in Hampton Roads.
Key takeaways at a glance
- Each 1% rate increase raises your monthly payment by ~$60-$75 per $100k borrowed.
- On a $325k loan, a 1% increase = ~$200/month and ~$75k less total home you can afford.
- On a $400k loan, ~$250/month and ~$92k less buying power.
- Locking your rate protects against further increases during your closing window.
- Don't wait for rates to "go back down" - rates over the past 50 years have spent more time above 6% than below.
| From → To | Per $100k | On $325k loan | On $400k loan | On $500k loan |
|---|---|---|---|---|
| 5% → 6% | +$63/mo | +$205/mo | +$252/mo | +$315/mo |
| 6% → 7% | +$65/mo | +$211/mo | +$260/mo | +$325/mo |
| 7% → 8% | +$69/mo | +$224/mo | +$276/mo | +$345/mo |
A 1% rate increase typically removes 10-12% of your buying power. Lock when ready instead of timing the market.
In this guide
The basic math
For a 30-year fixed mortgage:
- 5% rate = ~$537/month per $100k borrowed
- 6% rate = ~$600/month per $100k borrowed
- 7% rate = ~$665/month per $100k borrowed
- 8% rate = ~$734/month per $100k borrowed
Each 1% rate increase = ~$60-$75/month per $100k.
Real Hampton Roads examples
- $325k loan: 6% to 7% = ~$200/month difference. Same $200/month in PITI = ~$75k less in maximum loan amount.
- $400k loan: 6% to 7% = ~$250/month difference. Same $250/month = ~$92k less buying power.
- $500k loan: 6% to 7% = ~$315/month. ~$115k less buying power.
When to lock
Rate locks typically run 30-60 days. Lock when you're ready and rates are favorable. Trying to time the market generally costs more than it saves.
Should you wait for rates to drop?
Probably not. Rates over the past 50 years have spent more time above 6% than below. Buy when you're ready and your finances support it; refinance later if rates drop. See refinance options.
Frequently Asked Questions
How much does a 1% mortgage rate increase cost?
About $60-$75 per month per $100k borrowed. On a $400k loan, ~$250/month and ~$92k less buying power.
Should I wait for rates to drop before buying?
Probably not. Rates may not drop, and waiting often costs more in continued rent and possible price appreciation. Buy when you're ready and refinance later if rates fall.
What's the difference between a 30-year and 15-year mortgage rate?
15-year rates are typically 0.5-0.75% lower than 30-year, but the monthly payment is much higher because the principal is repaid faster.
Can I lock my rate before having a contract?
Most lenders require an executed contract for a rate lock. Some offer "lock and shop" programs that lock the rate during shopping.
What is a rate buydown?
Paying upfront to lower the rate temporarily (1-3 years) or permanently. Common with builders and motivated sellers as a concession.
Are rates higher for first-time buyers?
No - rates are based on credit, LTV, and loan type, not first-time-buyer status. First-time buyers may pay slightly more if they have lower credit or higher LTV.
How do mortgage rates change?
They track the 10-year Treasury yield and the MBS market. See how mortgage rates are determined.
Should I pay discount points to lower my rate?
Sometimes - if you'll keep the loan past the break-even (typically 5-7 years). Calculate it specifically for your situation.
Have a question about your home purchase?
Talk to a Hampton Roads buyer's agent or loan officer who can walk through your specific situation - no pressure, no obligation.
Sources & further reading
Information reflects 2025-2026 conditions and rules. Always confirm current details with the relevant agency, lender, or licensed professional before relying on any specific figure or rule.
About the Author
The VaHome Team is dedicated to providing expert real estate insights for Hampton Roads, Virginia. Contact us at (757) 777-7577 or tom@vahomes.com.
About the Hampton Roads Real Estate Market
Hampton Roads is one of the most dynamic real estate markets on the East Coast, anchored by the largest naval complex in the world at Naval Station Norfolk and home to roughly 120,000 active-duty, reserve, and civilian Department of Defense personnel. The region spans seven cities — Virginia Beach, Norfolk, Chesapeake, Suffolk, Portsmouth, Hampton, and Newport News — plus the Peninsula communities of Williamsburg, Yorktown, and Poquoson, with each market carrying its own personality, school district, and price profile.
Buying or selling here means thinking about more than just a house. Tidewater geography means flood zones, hurricane preparation, and waterfront premiums matter. Military presence means BAH affordability, PCS season inventory crunches (May through August), and VA loan eligibility are top of mind for a meaningful share of every neighborhood. School quality varies block by block, especially across the seven independent city school divisions, and is often the deciding factor for relocating families.
Why Buyers and Sellers Choose VaHome
The VaHome Team — Tom and Dariya Milan with LPT Realty — focuses on the Hampton Roads region with deep expertise in military relocation, VA financing, and the trade-offs that local buyers actually face. From listing strategy that gets your home in front of the right relocating buyer to buyer representation that respects your BAH cap and PCS timeline, the team treats every transaction as a long-term relationship. The site is built to make decisions clearer: BAH-aware search, drive-time mapping to every major installation, neighborhood guides written by people who live here, and a calculator that shows real monthly cost — taxes, insurance, HOA, and PMI included — instead of a teaser headline number.
Plan Your Next Move
Whether you are buying your first home with a VA loan, moving up while your kids transition between school districts, or selling a Hampton Roads property to relocate to your next duty station, the resources on this site are organized around the questions you are actually asking. Browse listings filtered by base proximity, paygrade-aware BAH cap, and commute time. Read neighborhood guides for Virginia Beach, Norfolk, Chesapeake, Suffolk, Hampton, Newport News, Williamsburg, and the Peninsula communities. Use the mortgage calculator to compare conventional, FHA, VA, USDA, and jumbo loan scenarios side by side. When you are ready to talk, the contact form goes directly to a specialist who knows the area, the lenders, and the timing.