The SMI and Premium-HI surcharge is determined by counting the number of months an
individual could have been enrolled in SMI or Premium-HI after the end of the IEP
through the end of the enrollment period in which enrollment occurs. When calculating
the number of months during which an individual could have been enrolled in SMI or
Premium-HI, exclude the following months:
All months beginning January 2007, during which the individual served as a volunteer
outside of the United States through a program sponsored by a tax-exempt organization
and had health insurance that provided coverage for the individual outside of the
United States for the duration of the volunteer service.
All months of SMI and/or Premium-HI entitlement.