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Why would refinancing my mortgage increase my PMI, even though rates are lower?
The PMI rate is calculated at the time your mortgage is underwritten to be terminated at the point where you have 20% equity in your home.  It is calculated based off of default risks based on your current equity value at the time of the loan.  So if you got your mortgage before the banking crisis those risk charts have changed dramatically and not in your favor. So lets say you have a 100k home which you put 10k down so you have a mortgage of 90k.  Since you have accumulated an additional 5k equity so payoff value is now 85k.  If you refinance your mortgage and the home values in your area have dropped 15% you now are borrowing 100% of the value of your home.  So you have higher risk from being at 100% as opposed to 90%.  And the PMI is for the 20% of equity you do not have that the bank can not expect to recover.  So when you originally bought the house your PMI pay out was 10k.  At 85K value and 100% borrowed the PMI payout will be closer to 18k.  While you may still be able to sell your home for the original value when they do the refinance calculations they use what your area has trended.  If that is the case you maybe be able get an actual appraisal to use but that will come out of your pocket. *Disclaimer: These are simplifications of how the whole complex process works if you call the banker they can explain exactly why, show you the numbers, and help you understand your specific circumstances.  *