97% (first time homebuyer)....Otherwise it's at about 90% based on the original loan.
I plugged your numbers into a refi google sheet that I have. Assuming your original loan was around $194k on a $200k house, with a given PMI of $125 and an escrow estimate of say $300 since you didn't mention that:
Current loan:
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PMI : $125
Escrow : $300
Principal + interest : $954
Total monthly payment : $1379
If you have a loan balance of $180k, the refi numbers look like this at 3.0%. Assuming $2700 of closing costs baked into the loan:
Refi loan:
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PMI: $125
Escrow: $300
Principal + interest : $771
Total monthly payment : $1196
Savings per month: $180
Time to recoup closing costs: 15.5 months
Total savings over life of loan: $14288
That last number is skewed because I assume the PMI lasts for the entire life of the loan. That usually isn't true. Refinancing resets the PMI clock back to 30 years, so that assumption in my spreadsheet costs you almost $6000 in extra PMI costs.
If you can get them to drop it at some point, your total savings will fall somewhere between $14k and $20k. I assumed no extra principal payments for this. The spreadsheet allows for it though. lmk if you want me to share it.
fwiw, a 15 year refi would save you north of $100k in interest.
H