2026-09-21 7 min read

PMI Calculator

The PMI premium, its removal date and total cost for a mortgage. Live calculator with worked steps, charts.

Calculator

Home Price Help
$

The purchase price of the property.

Down Payment(%)
%
Annual Interest Rate(%)
%
Loan Term(years)
years
Advanced options (2)
PMI Rate (annual % of loan)(%) Help
%

Private mortgage insurance, roughly 0.3%–1.5% of the loan per year.

PMI Drops at LTV(%) Help
%

PMI is removable once amortisation reaches this loan-to-value ratio.

This taxes, insurance & closing calculator runs on the standard amortisation model: interest is charged on the outstanding balance each month, and anything extra you enter is applied to principal immediately.

Results

Critical

Monthly PMI Premium

$133.33/month

0.50% of the loan per year.

Annual PMI Cost

$1,600

Starting LTV

80.00%

PMI Drops After Payment

Already below threshold

No PMI needed.

Total PMI Paid Until It Drops

$48,000

A pure cost — builds no equity.

Down Payment Needed to Avoid PMI

$80,000

20% down on conventional loans.

Extra Payment to Reach 20% in 5 Years

$0

Automatic Termination

—

Lenders must auto-cancel at 78% LTV (HPA).

Live results update as you type — currently showing monthly pmi premium of $133.33 /month on 12 payments a year. Replace the defaults with your own quote for an exact comparison.

Visualizations

PMI Cost Stack

133Monthly
1,600Annual
48,000Until drop

LTV Over Time

Formula

The cost and lifecycle of private mortgage insurance: the monthly premium below the down-payment threshold, the amortisation month it disappears, and the total paid until then.

PMI = Loan × annual rate ÷ 12 Removal when Balance ≤ drop LTV × Value

Variables

SymbolNameUnitDescription
BLoan balancecurrencyAmortises toward the removal threshold
rPMI ratepercent0.3%–1.5% of loan per year, by credit and LTV
MMonthly premiumcurrencyB × r ÷ 12 — pure cost, no equity
kRemoval monthcountWhen balance ≤ 78%–80% of original value

Explanation

This is what the sub-20% down payment costs per month, when it ends, and the total premium over that window — the number to weigh against waiting to save 20%.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

PMI is priced as an annual percentage of the loan.

Monthly PMI = loan × rate ÷ 12
Loan:$320,000
PMI rate:0.50%
Result: $133.33 per month
Step 2

Amortisation reaches the drop LTV at a predictable payment.

Balance(k) ≤ drop LTV × value
Result: Starts below the threshold
Step 3

Total PMI is a sunk cost over that window.

Total = monthly × months
Result: $48,000
Final Answer
$133.33

Worked Examples

See how the calculator works with different scenarios.

Scenario

The pmi calculator run on the values above, showing the full calculation path rather than only the answer.

Inputs

Rate:8
Years:30

Calculation

1. PMI is priced as an annual percentage of the loan. → $133.33 per month 2. Amortisation reaches the drop LTV at a predictable payment. → Starts below the threshold 3. Total PMI is a sunk cost over that window. → $48,000

Result

Monthly PMI Premium: $133.33 /month

Interpretation

PMI $133.33/month (80.0% LTV), dropping after payment — — $48,000 total.

Understanding Your Result

Your Result: Monthly PMI Premium: $133.33 /month

Typical range: Conventional PMI runs 0.3%–1.5% of the loan annually depending on credit and LTV; FHA MIP is 0.15%–0.75% annually plus 1.75% upfront.

What This Means

This is what the sub-20% down payment costs per month, when it ends, and the total premium over that window — the number to weigh against waiting to save 20%.

Why It Matters

PMI $133.33/month (80.0% LTV), dropping after payment — — $48,000 total.

Professional Interpretation

PMI $133.33/month (80.0% LTV), dropping after payment — — $48,000 total.

How this is calculated

The cost and lifecycle of private mortgage insurance: the monthly premium below the down-payment threshold, the amortisation month it disappears, and the total paid until then.

What drives the result

Carrying costs are budgeted monthly through escrow: the servicer collects one-twelfth of the annual tax and insurance premium with each payment. Taxes rise with assessments, insurance with rebuild costs and weather, and HOA dues with the association’s budget — none of them stop at payoff.

Recommendations

  • •Request PMI cancellation in writing at 80% LTV — do not wait for the automatic date.
  • •A smaller down payment plus PMI can beat a draining-savings 20% down in a high-appreciation market.

Educational Content

Introduction

The mortgage payment is only part of owning a home. Property taxes, insurance, HOA dues, PMI and maintenance continue for as long as you own it, and several of them compound faster than the loan amortises.

Concept Explanation

Carrying costs are budgeted monthly through escrow: the servicer collects one-twelfth of the annual tax and insurance premium with each payment. Taxes rise with assessments, insurance with rebuild costs and weather, and HOA dues with the association’s budget — none of them stop at payoff.

Applications

▸Budgeting the true monthly cost before buying
▸Tracking PMI to its removal date and requesting cancellation
▸Projecting taxes and dues across a planned holding period
▸Comparing HOA-heavy and no-HOA properties on total cost

Benefits

  • •Separates escrowed costs from principal and interest
  • •Shows the removal date for PMI and the growth path for taxes
  • •Quantifies maintenance — the most-omitted cost of ownership
  • •Supports apples-to-apples comparison between properties

Limitations

  • •Assessment growth and insurance pricing are local and cyclical
  • •Special HOA assessments are unpredictable; the reserve study is the best guide
  • •Tax appeals, exemptions and abatements can change the bill materially
  • •Maintenance averages 1%–2% of value per year but arrives in lumps

Best Practices

  • •Review the escrow analysis every year and contest errors quickly
  • •Appeal assessments when comparable sales support a lower value
  • •Re-quote insurance every 2–3 years
  • •Read the HOA reserve study before buying into a community

Common Misconceptions

Myth: Paying off the mortgage ends the payments
Truth: Taxes, insurance and dues continue for as long as you own the home.
Myth: Escrow figures are fixed
Truth: The servicer re-escrows annually; a tax or premium jump raises the payment.

Practical Tips

  • •Request cancellation at 80% LTV — do not wait for the automatic 78% date.
  • •Compare total PMI cost against the interest cost of waiting to save 20%.
  • •Watch appreciation: a rising value can support early removal with an appraisal.

Common Mistakes

Assuming PMI ends automatically
Borrower-initiated cancellation comes first; automatic termination is later.
Confusing PMI with FHA MIP
Different rules, different removal — FHA MIP usually requires a refinance.

Assumptions

This calculator makes the following assumptions to provide estimates:

Figures as entered: The result follows directly from the values supplied; lender rounding may differ slightly.
Rate and term fixed: Escrowed costs reassess annually and are modelled as entered.

Limitations

Be aware of these limitations when using this calculator:

Limitation: Assessment growth and insurance pricing are local and cyclical
Limitation: Special HOA assessments are unpredictable; the reserve study is the best guide
Limitation: Tax appeals, exemptions and abatements can change the bill materially
Limitation: Maintenance averages 1%–2% of value per year but arrives in lumps

Frequently Asked Questions

Answers to common questions about this calculator.

How do I get PMI removed early?
Request cancellation in writing at 80% LTV based on the original value — or on current value with a new appraisal under some lenders.
Is FHA MIP the same?
No — FHA MIP has an upfront component and generally lasts the life of the loan below 10% down; removal means refinancing.
Who uses the pmi calculator?
It is used by home buyers comparing mortgage offers, by owners weighing a refinance or equity move, and by loan officers and advisers sanity-checking a payment, ratio or fee structure. It sits in the Taxes, Insurance & Closing group of the Mortgage & Home Finance section of Atlascalcs.
How accurate is the pmi calculator?
Every figure follows directly from the inputs using standard amortisation mathematics, so it is accurate to the quality of the values you enter. Lenders round payments and apply their own day-count conventions, so expect small differences against a formal statement or payoff quote.
How current are the rates and thresholds used here?
The calculator uses the figures you enter, so update the rate to your actual offer or current market quote. Ratio thresholds, poverty guidelines and programme rules reflect the conventions described in the references and change periodically.
Does rounding change the results?
Every calculation runs on full precision and rounds only for display. Lenders round payments to the nearest cent or dollar, so expect a small difference between these figures and a formal statement or payoff quote.
Should I use the payment or the total cost to compare offers?
Use the payment to judge cash flow and the finance charge or APR to judge cost. When two offers differ on both, the all-in cost over the period you expect to hold the loan is the decisive measure.
Can I use this calculator for a business or commercial loan?
Yes. The payment, amortisation, ratio and cost calculators apply the same amortisation mathematics to commercial loans; the difference is in the fees, covenants and collateral rules, which you should enter explicitly.
What information should I have ready before applying?
Your exact rate and term, the fee schedule, any required add-ons, and your gross income and existing monthly obligations. With those five numbers every figure on this page can be tied back to a lender quote.

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Related Guides

Deepen your understanding with these educational resources.

Glossary

Technical terms used in mortgage calculations explained in plain language.

PMI (Private Mortgage Insurance)
Insurance protecting the lender when the down payment is below 20% of price; paid by the borrower and removable once equity is sufficient.
MIP (Mortgage Insurance Premium)
The FHA equivalent of PMI: an upfront premium (UFMIP) financed into the loan plus an annual premium paid monthly.
Loan-to-value ratio
The loan amount divided by the value of the asset securing it.
UFMIP (Upfront MIP)
The FHA upfront premium of 1.75% of the base loan amount, usually financed rather than paid in cash.

Authoritative References

Trusted sources and standards referenced by this calculator.

Applicable Standards

Level-payment (simple-interest) amortisation, payments assumed in arrearsAPR computed by discounting the actual payment stream to net proceedsDebt ratios computed on gross income for lender comparisonsMoney rounded for display only; all calculations run at full precision

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Page Information

Last Updated:

2026-09-21

Version:

2.0.0

License:

Free to use for educational and professional purposes.