Having your own home develops equity over time and a t some point a lot of homeowners have the same question in mind: should I refinance my mortgage or should I take out a second mortgage? Both choices allow you to use the value you have developed in your home but they work in very different ways and have variable costs alongside suiting to different financial goals. Getting to know these differences before you sign anything can help you save thousands of dollars and years of unwanted stress.
This article discusses exactly how mortgage refinancing and second mortgages work and the benefits and disadvantages of each along with deciding which path is suited for your situation.
What Is Mortgage Refinancing?
Mortgage refinancing means replacing your current home loan with a brand-new one, usually with different terms. The new loan pays off the old one completely, and you begin making payments under the new agreement. Homeowners refinance for several reasons:
• To secure a lower interest rate and reduce monthly payments
• To shorten or lengthen the loan term
• To switch from an adjustable-rate mortgage (ARM) to a fixed-rate mortgage, or vice versa
• To remove private mortgage insurance (PMI) once enough equity has been built
• To do a cash-out refinance, which increases the loan balance and gives the difference to the homeowner in cash
There are two main types of refinancing: rate-and-term refinancing, which changes only the interest rate and/or repayment period without changing the loan amount, and cash-out refinancing, which increases the loan balance so the homeowner can pocket the difference in cash. In both cases, the original mortgage is closed out and replaced entirely.
What Is a Second Mortgage?
A second mortgage is an entirely separate loan taken out against the equity in your home, while your original (first) mortgage remains untouched. Because the lender is in a secondary position behind the first mortgage holder, second mortgages typically carry a slightly higher interest rate than a primary loan. There are two common forms:
• Home Equity Loan: A lump-sum loan with a fixed interest rate and fixed monthly payments, similar in structure to a traditional mortgage.
• Home Equity Line of Credit (HELOC): A revolving credit line that lets you borrow as needed up to a limit, often with a variable interest rate, similar to a credit card secured by your home.
Also Read: HELOC vs Home Equity Loan
With a second mortgage, you keep your original loan's interest rate and terms exactly as they are, and you take on an additional loan and an additional monthly payment on top of it.
Key Differences at a Glance
Mortgage Refinancing
Replaces your existing mortgage with a new loan.
Usually results in one monthly mortgage payment.
Can change your interest rate, loan term, or loan type.
Closing costs typically range from 2%–6% of the loan amount.
Best for lowering your interest rate or changing your loan structure.
With a cash-out refinance, the entire existing loan balance is replaced with a new loan.
Second Mortgage
Adds a new, separate loan on top of your first mortgage.
Results in two monthly loan payments.
Your original mortgage terms remain unchanged.
Closing costs typically range from 2%–5% of the loan amount.
Best for accessing cash without changing your first mortgage.
Allows you to keep the low interest rate on your original mortgage intact.
How Each Option Affects Your Finances
1. Interest Rates
Refinancing can be especially attractive when market interest rates have dropped since you took out your original mortgage, since a rate-and-term refinance can lower your monthly payment and total interest paid over the life of the loan. Second mortgages, on the other hand, usually come with higher rates than first mortgages because the lender takes on more risk by holding a secondary claim on the property. If your goal is purely to reduce your interest rate, refinancing is generally the more effective route.
2. Loan Structure and Payments
Refinancing results in a single loan and a single monthly payment, which simplifies budgeting. A second mortgage adds a second monthly payment alongside your existing mortgage payment, which increases your total monthly debt obligation and can affect your debt-to-income ratio.
3. Closing Costs and Fees
Both options involve closing costs, including appraisal fees, origination fees, title insurance, and other administrative charges, generally ranging from 2% to 6% of the loan amount. Because refinancing replaces the entire loan, these costs apply to the full new loan balance. A second mortgage's closing costs are usually based only on the smaller, secondary loan amount, which can make it cheaper upfront if you only need to borrow a modest sum.
4. Impact on Your Original Loan Terms
This is one of the most important distinctions. Refinancing eliminates your original loan entirely, including its interest rate. If you locked in a very low rate years ago and rates have since risen, refinancing could mean giving up that favorable rate. A second mortgage leaves your first mortgage completely untouched, so if you have a historically low rate, a second mortgage lets you access equity without disturbing it.
5. Use Cases
Refinancing tends to make the most sense when you want to lower your overall interest rate, change your loan term, switch loan types, or need a large lump sum and don't mind resetting your entire mortgage. Second mortgages tend to work better when you want to preserve a favorable existing rate, need funds for a specific purpose like home renovations or debt consolidation, or want the flexibility of a line of credit you can draw from as needed.
Pros and Cons Summary
Mortgage Refinancing
• Pro: Can significantly lower your interest rate and monthly payment
• Pro: Simplifies finances into a single loan and payment
• Pro: Can remove PMI or change loan term
• Con: Resets the loan term, potentially extending years of payments
• Con: Closing costs apply to the entire new loan balance
• Con: You lose your original rate if it was lower than current rates
Second Mortgage
• Pro: Keeps your original mortgage rate and terms intact
• Pro: Closing costs are often lower since they apply only to the smaller loan
• Pro: HELOCs offer flexible, as-needed borrowing
• Con: Adds a second monthly payment and increases total debt
• Con: Interest rates are typically higher than a first mortgage
• Con: Two liens on the home can complicate future refinancing or sale
Which Option Is Right for You?
The right choice depends on your current mortgage rate, how much equity you have, your reason for borrowing, and your long-term plans for the home. If current market rates are lower than your existing mortgage rate, refinancing, potentially with a cash-out option, can be the more efficient choice. If your existing rate is already low and you simply need extra funds, a second mortgage lets you borrow what you need without disturbing that rate. It's also worth speaking with a mortgage professional or financial advisor such as EverLend who can run the numbers specific to your situation, since factors like credit score, loan-to-value ratio, and local lending conditions can shift which option makes more financial sense.
Frequently Asked Questions
1. Can I have both a refinanced mortgage and a second mortgage at the same time?
Yes. After refinancing your first mortgage, you can still take out a second mortgage or HELOC later, as long as you have sufficient equity and meet the lender's qualification requirements.
2. Does a second mortgage affect my credit score?
Applying for a second mortgage typically triggers a hard credit inquiry, which can cause a small, temporary dip in your score. Over time, making on-time payments on the new loan can help build positive credit history, while missed payments can hurt your score.
3. Is it harder to qualify for a second mortgage than a refinance?
Qualification requirements are similar for both and generally depend on your credit score, income, debt-to-income ratio, and the amount of equity in your home. However, because second mortgages are riskier for lenders, they may have somewhat stricter equity and credit requirements.
4. What is a cash-out refinance, and how is it different from a second mortgage?
A cash-out refinance replaces your existing mortgage with a larger new loan, giving you the difference in cash. A second mortgage leaves your original loan untouched and adds an entirely separate loan. Both let you access home equity, but they affect your existing loan differently.
5. How much equity do I need to qualify for either option?
Most lenders require you to retain at least 15% to 20% equity in your home after borrowing. The exact amount varies by lender, loan type, and your overall financial profile.
6. Are the closing costs tax-deductible?
Some costs and the interest paid may be tax-deductible depending on how the funds are used and current tax law. Because tax rules change and depend on individual circumstances, it's best to consult a tax professional before assuming any deduction applies.
7. Which option is better for home renovations?
Many homeowners prefer a HELOC or home equity loan for renovations, since a second mortgage lets you borrow only what you need without disturbing a favorable first mortgage rate. However, if you also want to lower your overall rate, a cash-out refinance could accomplish both goals in a single loan.
8. Can I refinance a second mortgage?
Yes, second mortgages can typically be refinanced on their own, separate from your first mortgage, often to secure a better rate or adjust repayment terms.