PMI timeline estimator

A planning timeline — not a promised cancellation date

Private mortgage insurance protects the lender, not the borrower, when a conventional loan starts above 80% loan-to-value. It usually is not permanent — but the date it actually ends is set by law, your servicer, and your payment history, not by a calculator. This tool shows the scheduled timeline under a fixed-rate amortization schedule so you know roughly what to expect and when to start asking your servicer about cancellation.

Who should use this calculator

Use it when comparing offers with different down payments to see how much longer a smaller down payment keeps PMI in place, or to get a rough sense of when to start the cancellation conversation with your servicer. It is not a substitute for the amortization schedule and cancellation notice your servicer is required to provide.

What each input means

• Purchase price and down payment — set the initial loan-to-value ratio and loan amount.
• Mortgage rate and loan term — used to build the scheduled amortization curve.
• Annual PMI rate — a planning percentage applied to the loan balance; your actual rate depends on your lender, credit profile, and loan program.
• Planning LTV threshold — the loan-to-value ratio you want the schedule to reach, commonly 80% or 78%.

How the calculation works

This estimator calculates the initial loan, applies the standard fixed-rate amortization schedule, and finds the first scheduled month when the remaining balance reaches the loan-to-value threshold you entered. It also multiplies the entered annual PMI rate by the loan balance to show a simplified monthly planning amount.

A worked example, using the figures already loaded above

On the default $450,000 home with 10% down, the initial loan is $405,000. At a 0.7% annual PMI rate, the simplified monthly PMI planning amount is about $236. Following the scheduled amortization curve at 6.5% over 30 years, the balance reaches the 80% loan-to-value threshold ($360,000) around month 95, or about 7.9 years in — with roughly $22,400 paid toward PMI by that point under this schedule.

How to interpret the result

Treat the scheduled month as the earliest point worth asking about, not a date PMI will definitely end. The Homeowners Protection Act sets a framework for automatic termination and borrower-requested cancellation on many conventional loans, but exact eligibility depends on your specific loan, payment history, and whether a new appraisal is required — details only your servicer can confirm in writing.

Why the actual date may differ

• Cancellation rules depend on loan type, governing law, payment history, servicer requirements, and the loan documents.
• Extra principal payments can change the balance timeline.
• A new valuation may be required, and property-value changes are not included.
• FHA mortgage insurance follows different rules from conventional PMI, including cases where it lasts for the life of the loan.

What this calculator does not include

• Your lender's actual PMI rate, which depends on credit score, loan program, and down payment tier.
• FHA, VA, or USDA mortgage-insurance rules, which differ from conventional PMI.
• Any appraisal, valuation, or paperwork your servicer requires before removing PMI.

Why the result is an estimate

This is scheduled amortization math applied to the numbers you entered — nothing here is confirmed by a lender or servicer. Extra payments, refinancing, missed payments, or a change in property value would all move the actual date without changing what this calculator shows.

Common mistakes to avoid

• Assuming PMI ends automatically the day the scheduled balance crosses 80% LTV, without checking your servicer's actual process.
• Applying this tool's conventional-PMI logic to an FHA loan, where the rules are different.
• Forgetting that extra principal payments — not modeled here — could move the real date earlier.

Related guides and calculators

• Amortization Calculator — inspect scheduled principal reduction separately, including the effect of extra payments.
• Down Payment Comparison Calculator — see how a larger down payment avoids PMI altogether.
• True Monthly Home Cost calculator — see PMI alongside the rest of the monthly payment.
• Why a mortgage payment isn't the true cost — where PMI fits among the other pieces a quoted payment can leave out.

Ask the lender or servicer for the written cancellation requirements.