Mortgage Rates Today, Dec 6: 30-Year Fixed Refinance Rate Jumps by 18 Basis Points

If you're thinking about refinancing your mortgage, the news today, December 6th, shows a noticeable uptick. The national average for a 30-year fixed refinance rate has jumped by 18 basis points, reaching 6.87%. This rise means that if you're looking to swap your current mortgage for a new one with a longer repayment term, your interest rate is now higher than it was just a week ago. While this might sound alarming, understanding why this is happening and what it means for your wallet is crucial for making smart financial decisions right now.

Mortgage Rates Today, Dec 6: 30-Year Fixed Refinance Rate Jumps by 18 Basis Points

What's Driving This Rate Increase?

This recent bump in mortgage rates, as reported by Zillow, isn't happening in a vacuum. Several key factors are at play, and understanding them can help you see the bigger picture.

• Anticipation of Federal Reserve Actions: The market is holding its breath, waiting for the Federal Reserve's final meeting of 2025 on December 10th. There’s a strong expectation, around a 90% chance, that the Fed will announce another 25 basis point rate cut. Lenders, being savvy, have likely already started to adjust their pricing to reflect this expected move. Think of it as them getting ahead of the curve.
• Economic Signals Painting a Mixed Picture: Recent economic data has been a mixed bag. Reports showing a declining jobs report and a fall in consumer confidence have indeed nudged investors towards safer havens, like 10-year Treasury bonds. These bonds are often seen as a barometer for mortgage rates. When investors flock to them, it can help prevent mortgage rates from climbing too high. It's a constant push and pull between different economic forces.
• A Surge in Refinance Activity: Despite today's jump, it's important to remember that rates are still near some of the lowest levels we've seen in about a year. This has led to a significant increase in refinancing. In fact, according to the Mortgage Bankers Association, the Refinance Index has reportedly shot up by a massive 109% compared to this time last year. People are certainly taking advantage of the relatively favorable conditions.
• Expert Opinions on the Horizon: Looking ahead, most experts believe that mortgage rates will likely stay above 6% for the remainder of 2025. Some even predict a slight dip into 2026, but a return to the ultra-low, sub-3% rates we experienced during the pandemic is highly improbable. This is a really important point; we're likely in a new, higher-rate environment for the foreseeable future.

Decoding the Numbers: What Does an 18 Basis Point Jump Really Mean for Your Payment?

An 18 basis point increase might sound small, but it can add up. Let's break it down with a hypothetical example.

Imagine you’re looking to refinance a $300,000 mortgage.

• At the previous week's average rate (6.69%): Your estimated monthly principal and interest payment would be around $1,943.
• At today's average rate (6.87%): Your estimated monthly principal and interest payment bumps up to approximately $1,977.

This is an increase of about $34 per month. Now, that might not seem like a huge amount on its own, but over the life of a 30-year loan, that adds up to nearly $12,000 more in interest paid. This is why every basis point, especially when you’re dealing with hundreds of thousands of dollars, matters.

Here’s a quick look at how the different refinance rates have shifted, according to Zillow:

Loan Type	Previous Average Rate	Current Average Rate	Change (Basis Points)
30-Year Fixed	6.72%	6.87%	+15
30-Year Fixed (from prev. week)	6.69%	6.87%	+18
15-Year Fixed	5.68%	5.77%	+9
5-Year ARM	7.39%	7.59%	+20

Note: Data for Saturday, December 6, 2025, as reported by Zillow.

Fixed-Rate vs. Adjustable-Rate Refinancing: Which Path is Right for You?

The current rate environment presents a classic dilemma for homeowners: should you lock in a rate for decades, or gamble on an adjustable-rate mortgage (ARM) that might offer a lower starting point?

30-Year Fixed Refinance Rate: This is the most popular choice for a reason. It offers predictability. Your monthly principal and interest payment will remain the same for the entire 30 years. This stability is incredibly valuable, especially if you’re concerned about future rate increases. Today’s rate of 6.87%, while higher than last week, still offers a fixed predictability that many homeowners value.

15-Year Fixed Refinance Rate: If you're looking to pay off your mortgage faster and save on total interest, a 15-year fixed rate is a great option. The trade-off is a higher monthly payment compared to a 30-year loan, but the interest rate is typically lower (currently 5.77%).

5-Year Adjustable-Rate Mortgage (ARM) Refinance Rate: ARMs start with a lower interest rate, which is fixed for an initial period (in this case, five years), after which the rate adjusts periodically based on market conditions. Today's rate is 7.59%. The allure here is the lower initial payment. However, if interest rates rise significantly after the fixed period, your monthly payments could increase substantially, making it a riskier proposition if you plan to stay in your home for many years or if you have a tighter budget.

From my perspective, if you have a mortgage rate significantly higher than today's averages, refinancing into a long-term fixed-rate mortgage is likely a wise move for peace of mind, even with the slight increase today. If you’re considering an ARM, you need to be very comfortable with the possibility of rising payments and have a solid plan for either selling or refinancing again before the adjustment period begins.

My Take: Should You Refinance Now?

This is the million-dollar question, isn't it? As someone who follows this market closely, I believe that for many homeowners, now is still a good time to consider refinancing, but with careful consideration.

The key is to look at your current situation.

• What is your current mortgage rate? If you have a rate significantly higher than 6.87% (or even 5.77% for a 15-year), then refinancing could still save you a substantial amount of money over time.
• How long do you plan to stay in your home? This is critical. Refinancing involves closing costs. You need to ensure you stay in the home long enough for those savings to outweigh the upfront expenses. I always advise clients to calculate their “break-even point”—the point at which your monthly savings from refinancing equal your closing costs.
• Can you comfortably afford the new payment? Even with a lower rate, a 30-year refinance might have a slightly higher payment if you're rolling in closing costs, or compared to a situation where rates were dramatically lower.

The recent upward movement doesn't negate the benefits of refinancing for those with high-interest mortgages. It just means the window of opportunity for the absolute best rates might be narrowing slightly. It reinforces the idea that it's usually better to refinance when you see a significant drop you can lock in, rather than trying to time the market perfectly.

The Federal Reserve's actions will continue to be a major influence, and while a rate cut is anticipated, its immediate impact on mortgage rates can be complex. The market often “prices in” expected events before they happen.

Ultimately, making a decision about refinancing is personal. It depends on your financial goals, tolerance for risk, and how long you plan to be in your home. Today's increased rates are a reminder that every basis point counts, and a little research and calculation can go a long way in securing your financial future.