John E. Shimota and Nan B. Shimota (Shimota) appeal the judgment of the United States Claims Court, Shimota v. United States, 21 Cl.Ct. 510 (1990), holding that the lump-sum payment received by Mr. Shi-mota from the Civil Service Retirement System (CSRS) after commencement of his CSRS retirement annuity was includible in income and subject to federal income taxation under section 72 of the Internal Revenue Code of 1986 (26 U.S.C. § 72), and that the 10 percent additional tax under section 72(t) was properly imposed on that payment. We affirm.

The arguments presented by Shimota in this appeal were fully considered and the issues correctly decided in Judge Robinson’s thorough and well-reasoned opinion. Accordingly, we adopt that opinion and affirm the Claims Court’s judgment. See also Guilzon v. Commissioner, 97 T.C. 14 (1991).

AFFIRMED.