- 7 - The built-in gain rules tax S corporations at the corporate level on any built-in gain on disposal of an asset. Sec. 1374(d)(3); Garwood Irrigation Co. v. Commissioner, supra. Only the appreciation present at the time the corporation becomes an S corporation is taxed at the corporate level. Garwood Irrigation Co. v. Commissioner, supra. Any gain attributable to post-S status conversion is passed through and taxed to the shareholders only. Id. Certain income items are treated as built-in gain. For example, income that the S corporation properly takes into account during the recognition period but which is attributable to the periods before the corporation became an S corporation is treated as built-in gain. Sec. 1374(d)(5)(A). The recognition period is the 10-year period beginning with the first day of the first taxable year in which the corporation is an S corporation. Sec. 1374(d)(7). There are also specific rules addressing when section 481 adjustments are treated as built-in gain. A section 481 adjustment taken into account in the recognition period is recognized built-in gain or loss to the extent the adjustment relates to items attributable to periods before the beginning of the recognition period under the principles for determining built-in gain or loss for S corporations. Sec. 1.1374-4(d)(1), Income Tax Regs. The principles for determining recognizedPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: March 27, 2008