Election

An election under subsection (a) shall apply to the taxable year for which made and to all subsequent taxable years unless revoked under paragraph (2).

A taxpayer may revoke an election made under paragraph (1) for any taxable year after the taxable year for which such election was made. Except with the consent of the Secretary, any taxpayer who makes such a revocation for any taxable year may not make another election under this section for any subsequent taxable year before the 6th taxable year after the taxable year for which such revocation was made.