Loan-to-value ratio, or LTV, is one number that quietly runs through nearly every major mortgage decision you will make: your rate, whether you pay mortgage insurance, how much you can borrow against your home, and whether a refinance makes sense. It is a simple calculation — loan amount divided by home value — but understanding how lenders use it changes how you think about down payments and equity. This is general information, not financial or legal advice.
What changed in 2026
- Home value swings in recent years have shifted many borrowers' LTV without them doing anything — a rising market lowers LTV, a cooling one raises it, so check your current standing rather than assuming it matches your original loan.
- PMI removal rules still hinge on reaching specific LTV thresholds, and borrowers who track their own LTV can request removal earlier than automatic servicer timelines.
- Combined loan-to-value (CLTV) matters more as home equity borrowing has picked back up, since a second lien changes your total leverage even if the first mortgage balance has not moved.
The basic calculation
LTV = loan amount ÷ appraised (or purchase) home value, expressed as a percentage. A $360,000 loan on a $400,000 home is a 90 percent LTV. Put down 20 percent instead of 10 percent, and that same purchase drops to 80 percent LTV — the threshold most conventional lenders use to decide whether private mortgage insurance is required.
Why lenders care so much
A lower LTV means the lender has more cushion if the home needs to be sold in a default scenario — there is more equity between the loan balance and the property's value. That lower risk is why LTV directly influences the interest rate offered, not just whether PMI applies. Two borrowers with identical credit scores can get different rates purely based on down payment size.
Combined LTV and second loans
When a second loan — a home equity loan, HELOC, or a piggyback loan — sits on top of a first mortgage, lenders look at combined loan-to-value (CLTV), which adds both balances against the home's value. This matters when applying for additional borrowing, since a high first-mortgage LTV can leave little room for a second loan even if the first loan alone looks reasonable.
| LTV range |
Typical implication |
| Below 80% |
No PMI on most conventional loans; often better rates |
| 80-90% |
PMI usually required; moderate rate impact |
| 90-97% |
PMI required; higher rates, tighter qualification |
| Above 100% |
Underwater — owe more than home is worth; refinancing is hard |
Tracking and using your LTV
Recalculate your LTV whenever your loan balance drops meaningfully or you believe your home's value has changed — a lower LTV can qualify you to request PMI removal, a better refinance rate, or a larger home equity line. This is also central to structures like what is a jumbo loan, where a larger down payment lowering LTV can sometimes shift underwriting in your favor.
FAQ
How do I calculate my current LTV?
Divide your current loan balance by your home's current value (a recent appraisal or a conservative market estimate), then multiply by 100 for a percentage.
At what LTV can I remove PMI?
Many conventional loans allow PMI removal once you reach 80 percent LTV through payments or appreciation, though servicer rules and timelines vary — check yours directly.
What is the difference between LTV and CLTV?
LTV considers only the first mortgage; CLTV adds any additional loans secured by the property, like a second mortgage or HELOC, against the total home value.
Does a lower LTV always mean a lower rate?
Generally yes, all else equal, since it represents lower risk to the lender — but credit score, loan type, and market conditions also factor into final pricing.
Where to go next
See how a second loan interacts with LTV in what is a piggyback loan, understand loan-size thresholds in what is a jumbo loan, and check the process for using improved LTV in refinancing your mortgage.