
The current calculation (as of 04/09/2012) for up front mortgage insurance (UFMIP) is 1.75% of the loan amount. It is financed within the loan.
Ex: A $100,000 loan (base loan amount) will have UFMIP of $1,000. The new loan amount will be $101,000.
The monthly mortgage is currently 1.25% of the base loan amount. The calculation is as follows:
Base Loan Amount: $100,000 x 1.25% = $1,250/12 = $104.17.
The monthly mortgage insurance does expire. It will last for at least 5 years or 22% equity, whichever comes last.
*Calculations are based upon a 30 year amortization and loan to values >95%. Mortgage insurance will be lower on shorter terms and lower loan to values. Loans over $625,500, 15 year mortgages, and Streamline refinances have different mortgage insurance calculations.