Why Equity Matters for Refinancing
Equity is the portion of your home's value that you own outright — the gap between what your home is worth and what you still owe. When you refinance, lenders look at this through the lens of loan-to-value ratio (LTV): the percentage of the home's value that your new loan represents.
The lower your LTV (meaning more equity), the better your refinance options. High equity means less risk for the lender, which translates into better rates, no PMI, and access to more programs. Too little equity can lock you out of refinancing entirely — or cost you significantly in fees and higher rates.
The 20% Equity Standard (80% LTV)
The widely cited benchmark is 20% equity — which means an LTV of 80% or lower. At this threshold, conventional lenders will refinance without requiring private mortgage insurance (PMI). PMI typically costs 0.5%–1.5% of the loan amount per year, so avoiding it is meaningful: on a $300,000 loan, that's $1,500–$4,500 annually.
With 20% equity, you'll also qualify for the most competitive interest rates and have access to the full range of conventional loan products from Fannie Mae and Freddie Mac. It's the clearest line between "standard refinancing" and "constrained refinancing."
However, 20% is not a hard minimum — it's the PMI cutoff. You can refinance with less equity; it just comes with additional cost.
Refinancing With Less Than 20% Equity
If your LTV is above 80%, you still have refinancing options. What changes is the cost and program selection:
Conventional Refinance (3–20% Equity)
Fannie Mae and Freddie Mac allow conventional refinances down to 97% LTV (just 3% equity), but you'll pay PMI on anything above 80% LTV. The PMI rate depends on your credit score and LTV — lower credit scores at higher LTVs face the steepest premiums. Lenders may also charge a loan-level pricing adjustment (LLPA) that effectively raises your rate.
Fannie Mae's RefiNow and Freddie Mac's Refi Possible programs specifically help lower-income borrowers refinance at up to 97% LTV with reduced fees.
FHA Refinance (2.25% Equity)
FHA rate-and-term refinances allow up to 97.75% LTV, requiring just 2.25% equity. You'll pay both an upfront mortgage insurance premium (1.75% of the loan) and an annual MIP (0.55%–1.05% depending on loan size and term). FHA loans are particularly accessible for borrowers with credit scores between 580–679. Use the FHA Refinance Calculator to estimate savings including MIP. For a detailed breakdown of what FHA refinancing costs, see our FHA Refinance Closing Costs guide.
VA Refinance (No Equity Required)
For eligible veterans and active-duty service members, the VA allows 100% LTV refinancing with no PMI. The VA IRRRL (Interest Rate Reduction Refinance Loan) is specifically designed for VA-to-VA refinances and requires no appraisal or income verification in most cases.
USDA Refinance
USDA Streamlined-Assist refinances also allow very high LTVs for borrowers in eligible rural areas, though you must be current on your USDA loan and demonstrate a payment reduction.
Equity Requirements by Loan Type
| Loan Program | Min. Equity Required | Max. LTV | PMI / MIP Required? |
|---|---|---|---|
| Conventional (standard) | 20% | 80% | No |
| Conventional (with PMI) | 3%–5% | 95%–97% | Yes, until 80% LTV |
| FHA Rate & Term Refi | ~2.25% | 97.75% | Yes (MIP for life of loan if <10% down) |
| FHA Streamline | Existing equity only | No appraisal required | Yes |
| VA IRRRL | None required | 100%+ | No (VA Funding Fee applies) |
| USDA Streamlined-Assist | Limited | Varies | Annual fee applies |
| Cash-Out Refinance (Conventional) | 20% | 80% | No (above 80% LTV: yes) |
How to Calculate Your Current Equity
Before applying to refinance, it helps to run the math yourself. Here's a step-by-step example:
Example Calculation
Step 1 — Current home value: Get an estimate from a real estate agent, Zillow, or a formal appraisal. Let's say $375,000.
Step 2 — Remaining mortgage balance: Check your most recent statement. Let's say $285,000.
Step 3 — Equity: $375,000 − $285,000 = $90,000
Step 4 — Equity percentage: $90,000 ÷ $375,000 = 24%
Step 5 — LTV: $285,000 ÷ $375,000 = 76%
Result: At 76% LTV, this borrower qualifies for conventional refinancing without PMI. ✓
Our loan-to-value calculator does this math instantly — just enter your balance and estimated home value.
What If Your Home Value Has Changed?
Home values fluctuate. If your home has appreciated since you bought it, your equity is higher than your original down payment suggests. If values have declined, you may have less equity than you expect. When you apply to refinance, the lender will order an appraisal to establish the official current value — which is what determines your LTV for underwriting purposes.
Fannie Mae and Freddie Mac offer appraisal waivers on some loans where their automated systems have high confidence in the property value, which can save you $400–$700 in appraisal costs.
Equity for Cash-Out Refinancing
Cash-out refinancing has stricter equity requirements than rate-and-term refinancing, because you're increasing your loan balance. For conventional cash-out refinances, lenders typically require:
- 20% equity remaining after the cash-out — meaning your new LTV after the cash is paid to you can't exceed 80%
- A minimum credit score of 620 (most lenders prefer 680+)
- A debt-to-income ratio under 45%
VA cash-out refinances allow up to 100% LTV for eligible veterans. FHA cash-out refinances allow up to 80% LTV.
Use our mortgage savings calculator to estimate how much cash you could pull out while keeping your LTV at 80% or below.
📈 Calculate your LTV and refinance savings in seconds
Continue Reading
Frequently Asked Questions
Can I refinance with less than 20% equity?
Yes. Conventional loans allow refinancing with as little as 3–5% equity, though you'll pay PMI if you have less than 20%. FHA loans require at least 2.25% equity (97.75% LTV). VA loans allow 100% LTV for veterans with no PMI. USDA loans also allow refinancing with limited equity. However, lenders may impose stricter requirements than the program minimums.
How do I calculate my home equity?
Home equity equals your home's current market value minus all outstanding mortgage balances. For example, if your home is worth $350,000 and you owe $240,000, your equity is $110,000, or about 31.4%. The loan-to-value ratio (LTV) is the inverse: $240,000 ÷ $350,000 = 68.6% LTV.
Does my home need a new appraisal to refinance?
Usually yes, unless you qualify for an appraisal waiver. Fannie Mae and Freddie Mac offer automated appraisal waivers on some conventional refinances where the system can verify value using existing data. FHA Streamline and VA IRRRL refinances do not require a new appraisal in most cases.
What if my home's value has dropped since I bought it?
If your LTV is now above 80% due to a drop in value, conventional refinancing will require PMI or a lower loan amount. FHA refinances allow up to 97.75% LTV. For conventional loans, Fannie Mae's RefiNow and Freddie Mac's Refi Possible programs accept up to 97% LTV for qualifying borrowers with limited income.
Sources & References
- Consumer Financial Protection Bureau (CFPB) — Explore Mortgage Rates
- Freddie Mac Primary Mortgage Market Survey (PMMS)
- Federal Housing Finance Agency (FHFA) — Conforming Loan Limits
- IRS Publication 936 — Home Mortgage Interest Deduction
- U.S. Department of Housing and Urban Development (HUD) — FHA Loan Programs
- Fannie Mae Selling Guide — Cash-Out Refinance LTV Requirements
Editor's Note — July 2026: This article was reviewed for accuracy in July 2026. Formulas, program eligibility rules, and guidelines reflect current requirements. For the latest mortgage rates, see Freddie Mac's weekly PMMS survey. Borrowers who locked rates of 6.5%–8.0% in 2022–2023 may find the current environment (6.5%–7.0%) worth running numbers on — use the break-even calculator or the Decision Center.