recomputation year
(4) Recomputation year For purposes of this subsection, except as provided in regulations, the term “recomputation year” means, with respect to any property, the 3d and the 10th taxable years beginning after the taxable year in which the property was placed in service, unless the actual income earned in connection with the property for the period before the close of such 3d or 10th taxable year is within 10 percent of the income earned in connection with the property for such period which was taken into account under paragraph (1)(A).