than a rollover contribution described in section 530A(d)(4)), over (B) the amount allowable as a contribution under section 530A(b)(1), and (2) the amount determined under this subsection for the preceding taxable year, reduced by the sum of— (A) the distributions out of the accounts for the taxable year, and (B) the excess (if any) of the maximum amount allowable as a contribution under sections 530A(b)(1) for the taxable year over the amount contributed to the accounts for the taxable year. For purposes of this subsection, any contribution which is distributed from a small business start-up savings account in a distribution described in section 530A(d)(3) shall be treated as an amount not contributed. . (e) Clerical amendment The table of contents for subchapter F of chapter 1 of such Code is amended by adding at the end the following new item: Part IX. Small Business Start-Up Savings Accounts . (f) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2016.