Claim: Members of Congress receive lavish pensions but are not required to contribute to the Social Security fund.
Status: False.(snip)
Origins: This piece has been circulating on the Internet since April 2000. So much of it is outdated, inaccurate, or misleading, it's difficult to know where to begin.
* It is not true that Congressmen do not pay into the Social Security fund. They pay into the fund just as most everyone else does. (A few odd exceptions to the Social Security program still exist, both inside and outside of government.)
* It was true prior to 1984 that Congressmen did not pay into the Social Security fund because they participated in a separate program for civil servants (the Civil Service Retirement System, or CSRS), but that program was closed to government employees hired after 1983:
In 1983, Public Law 98-21 required Social Security coverage for federal civilian employees first hired after 1983 and closed the Civil Service Retirement System (CSRS) to new federal employees and Members of Congress. All incumbent Members of Congress were required to be covered by Social Security, regardless of when they entered Congress. Members who had participated in CSRS before 1984 could elect to stay in that plan in addition to being covered by Social Security or elect coverage under an 'offset plan' that integrates CSRS and Social Security. Under the CSRS Offset Plan, an individual's contributions to CSRS and their pension benefits from that plan are reduced ('offset') by the amount of their contributions to, and benefits from, Social Security.
(snip)
http://www.snopes.com/politics/taxes/pensions.asp