Making the Grade: The Simple Math of Refinancing Your Home or Auto

As we roll into June and the Massachusetts sun finally decides to stay a while, many of our members at Common Trust FCU are looking for ways to keep their summer cooling bills up and their monthly loan payments down. Whether you’re cruising past our Woburn office in a car you love or relaxing in your Bedford backyard, you might be wondering if now is the time to refinance. With market rates showing more stability this year, the question isn’t just "can I refinance?" but "does the math actually work for me?"

Breaking Down the Refi Equation

Refinancing is essentially swapping your current loan for a new one with better terms. To decide if it’s a "win," you need to look at three specific numbers:

• The "Rule of 0.75%": For mortgages, the traditional wisdom is that if you can drop your interest rate by at least 0.75% to 1%, you’re likely in the "money." For example, if you're currently at 7% and can lock in 6.25%, the long-term savings are usually significant.

• The Break-Even Point: This is the most critical math for homeowners. You calculate this by taking your total closing costs and dividing them by your monthly savings.
  Calculation: If your refinance costs $4,000 but saves you $200 a month, your break-even point is 20 months. If you plan to stay in your home longer than two years, that’s a smart mathematical move!

• Auto Loan Shaving: For car loans, the math is simpler because there are rarely high closing costs. Even a 1% or 2% drop in your APR can save you hundreds over the life of the loan. In June 2026, with used car values holding steady in New England, your "loan-to-value" ratio might be better than you think, making you eligible for our lowest available rates.

Is it Time to Run the Numbers?

At Common Trust FCU, we believe math should be empowering, not exhausting. Whether you’re looking to shorten your mortgage term to pay your house off faster or simply want to lower your monthly auto nut to free up cash for a Cape Cod vacation, we’re here to help you crunch the numbers. Contact us or stop by one of our branches, and let’s see if we can put some extra green back in your pocket for the summer!