A bill to amend title II of the Social Security Act to make it clear that every beneficiary is entitled to apply the monthly earnings test in at least one year after 1977, to provide that income attributable to services performed before initial benefit eligibility by an individual entitled to old-age insurance benefits shall not be taken into account (after 1977) in determining his or her net earnings from self-employment for purposes of the earnings test, and to assure the payment of benefits accordingly.

Amends title II (Old-Age, Survivors and Disability Insurance) of the Social Security Act to permit an individual to use the monthly (instead of annual) earnings test during the first year, after 1977, of the individual's entitlement to OASDI benefits.

Disregards certain royalties and income received on a deferred basis, for purposes of determining OASDI eligibility based on income, where receiving income on a deferred basis for services performed in a previous year or years is a common practice in the business from which such income is derived.