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When Does Refinancing Your Mortgage Make Sense?

Refinancing your mortgage can be a smart financial decision, but it’s not a one-size-fits-all solution. Whether you’re looking to lower your monthly payments, shorten your loan term, or tap into your home equity, refinancing comes with costs and considerations that need to be carefully weighed.

In this post, we’ll walk through:

  • What you need to qualify for refinancing
  • Common goals of refinancing
  • The costs involved
  • A real-world example of potential savings
  • How to determine if it’s worth it

What You Need to Qualify for Refinancing

Before jumping into refinancing, make sure you meet these basic requirements:

  1. Home Equity: Lenders generally want you to have at least 20% equity in your home to refinance without private mortgage insurance (PMI).
  2. Credit Score: The higher your credit score, the better your chances of securing a low interest rate.
  3. Debt-to-Income (DTI) Ratio: Most lenders prefer your DTI ratio to be under 43%, which means your total monthly debt payments should be less than 43% of your gross monthly income.

Why Do People Refinance?

Refinancing is all about getting a new mortgage with terms that better suit your financial goals. The most common reasons include:

1. Lowering Your Interest Rate

A lower interest rate means paying less in interest over the life of your loan and often reducing your monthly payment.

2. Shortening Your Loan Term

Switching from a 30-year loan to a 15-year loan can help you pay off your home faster and save significantly on interest. While your monthly payment will likely increase, you’ll own your home outright much sooner.

3. Cash-Out Refinancing

If you have significant equity in your home, cash-out refinancing allows you to borrow against that equity for big expenses like home renovations. Keep in mind this increases your overall loan balance.

A Real-World Example: $800,000 Mortgage at 7% vs. 5.5%

Let’s say you have an $800,000 mortgage with a 30-year term at a 7% interest rate. Here’s how refinancing to a lower rate—or a shorter term—could impact your finances:

Option 1: Lower the Rate, Keep the 30-Year Term

  • Current Payment at 7%: $5,322/month
  • New Payment at 5.5%: $4,542/month
  • Monthly Savings: $780
  • Total Interest Savings Over 30 Years: $647,000

Option 2: Lower the Rate and Switch to a 15-Year Term

  • New Payment at 5.5% (15-Year Term): $6,546/month
  • Monthly Increase: $1,224
  • Total Interest Savings: $1.1M
  • Time Saved: 15 years

Both scenarios offer significant interest savings, but the right choice depends on your cash flow, budget, and financial goals.

The Costs of Refinancing

Refinancing isn’t free, even if you’re lowering your interest rate. Here are the key costs to consider:

1. Closing Costs and Points

Refinancing typically costs 2-5% of the loan amount. For an $800,000 mortgage, this could be $16,000–$40,000.

2. Break-Even Point

Divide your total closing costs by your monthly savings to determine how long it will take to recoup those costs. For example, if you save $780/month and paid $20,000 in closing costs, your break-even point would be:
$20,000 ÷ $780 = 26 months

If you don’t plan to stay in your home longer than the break-even point, refinancing might not be worth it.

3. “No-Cost” Refinancing

Some lenders offer “no-cost” refinancing, but it usually means a slightly higher interest rate. While this avoids upfront costs, you’ll pay more over time.

Restarting Your Loan Term

When you refinance, your loan term resets. For example, if you refinance a 30-year mortgage after 5 years, you’ll start a new 30-year term.

However, you can still pay off your loan early by making extra payments. For instance, if you add $500/month to your mortgage payment, you could cut years off your loan and save thousands in interest.

Should You Refinance?

Refinancing can be a powerful tool to save money or pay off your home sooner—but only if the numbers make sense. Consider your goals, how long you plan to stay in your home, and whether the savings outweigh the costs.

Still not sure if refinancing is right for you? Run the numbers or consult a trusted financial advisor who can guide you through the process and help you make an informed decision.

The blog is for general information only and is not intended to provide specific advice or recommendations for any individual.  Readers should consult a qualified financial professional determine what’s appropriate for their situation.  

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