The Homeowners Protection Act of 1998 established rules for automatic termination and borrower cancellation of Private Mortgage Insurance (PMI) for home mortgages. These protections apply to certain home mortgages signed on or after July 29, 1999, for the home purchase, initial construction or refinance of a single-family home. It does not apply to government-insured FHA or VA loans, or to loans with lender-paid PMI.
With certain exceptions your PMI must be terminated automatically when 22% of the equity of your home is reached, based on the original property value and if your mortgage payments are current. It can also be canceled at your request with certain exceptions, when you reach 20% equity, again based on the original property value, if your mortgage payments are current.
Ask your lender or mortgage servicer for information about these requirements.