A home equity loan — sometimes called a second mortgage or equity loan — lets you borrow a lump sum against your home's equity at a fixed interest rate with equal monthly payments over a defined term. Unlike a HELOC's revolving access and variable rate, the home equity loan provides complete payment certainty from day one: you know your exact payment schedule for the life of the loan.

According to the Federal Reserve's G.19 Consumer Credit report, home equity lending has rebounded strongly since 2022 as mortgage rates rose and homeowners became reluctant to refinance first mortgages (trading a 3–4% rate for 6–7%) — instead preferring to tap equity through a separate second-lien product. Home equity loans and HELOCs combined outstanding balances exceed $350 billion as of 2025.

Best use cases for a home equity loan vs. alternatives:

• Debt consolidation — rolling multiple high-interest debts (credit cards at 22–27%) into a single fixed payment at 8–10%. On $40,000 of consolidated debt, replacing 22% APR with a 9% home equity loan saves approximately $5,200/year in interest — but transfers unsecured debt to secured (home) debt, increasing risk.
• Home improvements — kitchen or bathroom remodels, additions, roofing. Interest potentially deductible under IRS Publication 936 for home-improvement use.
• Major one-time expenses — medical bills, tuition, wedding — where knowing the exact payoff schedule is important.
• Business investment — funding a small business launch when business credit is unavailable and the borrower has strong home equity.

2025 home equity loan rate environment: Fixed rates on home equity loans typically run 1–2% above 10-year Treasury yields. With the 10-year Treasury near 4.25–4.50% in mid-2025, home equity loan rates from major lenders generally fall between 7.5% and 10.5%, depending on LTV, credit score, and loan amount. The CFPB's consumer credit trends data confirms that home equity lending terms tightened in 2023 and partially loosened in 2024–2025 as lender competition for high-equity borrowers increased.

The home equity loan uses the standard fixed amortization formula — identical to a first mortgage calculation. There is no variable rate, no draw period, no interest-only phase. Every payment is fixed from the first month to the last, with the split between principal and interest shifting over time as the balance declines.

Example 1 — Debt consolidation: Homeowner with $520,000 home, $310,000 first mortgage, borrows $60,000 at 9.25% for 10 years to consolidate credit card debt.

Example 2 — Home renovation, 15-year term: $80,000 kitchen and bathroom remodel at 8.75% for 15 years.

Closing costs on home equity loans typically range from 2–5% of the loan amount, encompassing the appraisal, title search, origination fee, and recording fees. Per the CFPB's loan options guide, these costs should be factored into the APR comparison between the home equity loan and alternative financing options.

Detailed walkthrough: a homeowner in Denver, CO with a $700,000 home and $420,000 remaining first mortgage (at 3.25%) seeking $100,000 for a home addition.

1. Enter home value and first mortgage balance.
   Home value: $700,000. First mortgage balance: $420,000. LTV on first mortgage: 60%. With 85% CLTV cap: ($700,000 × 85%) − $420,000 = $595,000 − $420,000 = $175,000 maximum home equity loan. Your requested $100,000 is well within limits.
2. Enter loan amount.
   $100,000. Note: the lender will require a home appraisal (typically $400–$600) to confirm value. Lenders may cap the loan at 80–85% CLTV based on the appraised value, which may differ from your estimated value if the market has cooled.
3. Enter interest rate and loan term.
   With a 760 credit score and 60% LTV on the first mortgage, you might qualify for 8.50% on a 15-year home equity loan. Monthly payment on $100,000 at 8.50% for 15 years: $985/month. Total interest: $77,300.
4. Compare term options.
   The calculator shows all common terms side-by-side:
   10-year at 8.50%: $1,240/month | Total interest: $48,800
   15-year at 8.50%: $985/month | Total interest: $77,300
   20-year at 8.75%: $883/month | Total interest: $111,920
   Choosing 10 years over 20 years costs $357/month more but saves $63,120 in interest.
5. Factor in closing costs.
   Estimated closing costs at 2%: $2,000. The calculator computes the APR inclusive of closing costs: 8.50% rate becomes approximately 8.70% APR on a 15-year loan. This is the number to use when comparing to other lenders — not the nominal interest rate.
6. Evaluate the "keep the low first mortgage" logic.
   The key advantage of a home equity loan over a cash-out refinance in this scenario: the first mortgage is at 3.25%. A cash-out refi would replace the entire $420,000 balance at today's rate (6.75%), costing an additional ~$14,700/year in interest on the existing first mortgage alone. The home equity loan at 8.50% on $100,000 costs $8,500/year in interest — far less than the penalty of refinancing the first mortgage. This "mortgage rate preservation" math is the most important calculation for millions of homeowners with sub-4% first mortgages.
7. Assess the combined monthly obligation.
   First mortgage P&I: ~$1,825/month. Home equity loan: $985/month. Total: $2,810/month (plus tax/insurance). Ensure the combined DTI (all debt payments / gross income) remains below 43% for underwriting purposes.

The home equity loan calculator's outputs are designed to help you compare this product against alternatives and understand the full 10–20 year financial commitment.

Monthly Payment: Your fixed obligation for the entire loan term. Unlike a HELOC, this amount never changes (unless you refinance). Budget certainty is the core appeal of the home equity loan structure — many financial planners prefer it over HELOCs for borrowers who struggle with variable expense management.

Total Interest Cost vs. Effective APR: The total interest figure answers "what does this money actually cost?" whereas the APR answers "what is the annualized cost including fees?" Closing costs on a $100,000 home equity loan of $2,000–$3,000 add 0.15–0.25% to the effective APR. When comparing lenders, the APR is the single most useful comparison metric per CFPB disclosure requirements.

Home Equity Loan vs. Personal Loan Comparison: Unsecured personal loans are currently priced 12–18% for most borrowers. On a $50,000 debt consolidation need, a 10-year personal loan at 15% costs $806/month and $46,720 in interest; a home equity loan at 9% costs $633/month and $25,960 in interest — a saving of $20,760. However, the home equity loan is secured by your home. This secured vs. unsecured risk tradeoff is quantified in the calculator output.

Second Lien Priority and Default Risk: The calculator notes that in a foreclosure, the first mortgage lender is paid first from sale proceeds. Home equity lenders are "second in line" — in a scenario where your home's value falls below the combined first and second mortgage balance, you could face foreclosure on the home equity loan while still owing on the first. Maintaining combined LTV below 80% provides meaningful safety margin. This is not a theoretical risk: during 2008–2012, many homeowners with second mortgages experienced exactly this scenario, as documented by the Federal Reserve's research on mortgage default cascades.

Amortization Schedule: The detailed month-by-month table shows how much of each payment goes to principal vs. interest. In the early years, a higher proportion goes to interest — standard for any amortizing loan. By year 5 of a 15-year $100,000 loan at 8.75%, you've paid $60,810 in total payments but reduced the balance only to $72,560. Understanding this front-loading helps set realistic expectations for equity buildback.

• Preserve your low first mortgage rate. For the millions of homeowners with first mortgages at 2.5%–4%, a home equity loan is almost always preferable to a cash-out refinance at today's 6.5%–7% rates. The math is stark: refinancing a $350,000 first mortgage from 3.5% to 7.0% adds approximately $12,250 in annual interest — far more than the cost of a separate home equity loan on just the incremental borrowing amount.
• Shop at least 3–5 lenders including credit unions. Credit unions and community banks often offer home equity loan rates 0.50–1.00% below major bank rates for members with direct deposit relationships. On a $100,000 loan over 10 years, a 0.75% rate reduction saves approximately $4,000 in total interest. The CFPB's mortgage comparison tool provides a neutral starting point for rate research.
• Take out only what you need, not what you qualify for. Lenders will approve you for the maximum available equity — that does not mean you should borrow it. Every dollar borrowed is secured by your home and costs 8–10% annually. A $150,000 approved line does not mean a $150,000 loan is wise; borrow the specific amount needed for the defined purpose and leave equity as a buffer.
• Watch for prepayment penalties. Some lenders charge prepayment penalties (typically 1–3 years of interest) if you pay off the home equity loan early. This is particularly important if you're considering a future sale or refinance. Always ask explicitly about prepayment penalties before signing — they can negate significant portions of the interest savings from early payoff.
• Separate uses for tax deductibility tracking. If you use a $120,000 home equity loan for $80,000 of home improvements and $40,000 of personal expenses, only the $80,000 portion's interest is potentially deductible. Keep the uses documented with receipts, contractor invoices, and a clear financial accounting. IRS auditors look specifically at mixed-use equity borrowing when claiming Schedule A mortgage interest deductions.
• Consider the combined LTV after the loan. Adding a $100,000 second lien to a home worth $500,000 with $300,000 first mortgage creates an $400,000 combined balance and an 80% CLTV. If home values drop 10% to $450,000, your CLTV jumps to 89% — which can make future financing, selling, or refinancing more difficult. Maintaining a CLTV below 75% provides meaningful protection against market fluctuations.