5 C.F.R. § 841.503 Amounts of employee deductions.
Title 5 - Administrative Personnel
(a) Except as provided in paragraph (b) of this section, the rate of employee deductions from basic pay for FERS coverage is seven percent of basic pay minus the percent of tax which is (or would be) in effect for the payment, for the employee cost of social security. (b) The rate of employee deductions from basic pay for FERS coverage for a Member, law enforcement officer, firefighter, air traffic controller, Congressional employee, or employee under section 302 of the Central Intelligence Agency Act of 1964 for Certain Employees is seven and one-half percent of basic pay, minus the percent of tax which is (or would be) in effect for the payment, for the employee cost of social security. (c) Employee deductions will be at the rate in paragraph (a) or (b) of this section as if social security deductions were being made even if social security deductions have ceased because of the amount of earnings during the year, or are not made for any other reason. [52 FR 2057, Jan. 16, 1987, as amended at 52 FR 25197, July 6, 1987]
Title 5: Administrative Personnel
PART 841—FEDERAL EMPLOYEES RETIREMENT SYSTEM—GENERAL ADMINISTRATION
Subpart E—Employee Deductions and Government Contributions
§ 841.503 Amounts of employee deductions.

