Because the FHA is basically an insurance company, up until just recently, the removal or cancellation of the Monthly Mortgage Insurance (MMI) policy was not possible. Mortgagee Letter 2000-46 established the criteria by which the MMI would no longer be collected.
"78% Rule"
Once the LTV reaches 78%, the FHA no longer collect the MMI. Unlike Private Mortgage Insurance which uses a current appraisal to determine the value, the FHA will base the value of the property on the lower of the sales price or appraised value at the time of origination.
Loans Longer Than 15 Years
Loans 15 Years and shorter
The 78% is calculated excluding the amount of the Up-Front MIP financed.Loans that are 15 years and shorter with an initial LTV of less than 90%, do not have a Monthly Mortgage Insurance (MMI) policy.
Note: When the note balance reaches 78% by normal amortization, the FHA will discontinue collecting the MMI automatically. Those borrowers who reach the 78% sooner than projected by accelerating or prepaying their mortgage must request that the lender remove the MMI. If they have made all their payments on time (the las 12 months) and have met the requirements listed above, the servicing lender shall submit the proper information to the FHA and they will then discontinue to collect the charge.