ORS 314.045: Application of Taxpayer Relief Act of 1997 (P.L. 105-34), Taxpayer Browsing Protection Act (P.L. 105-35), Balanced Budget Act of 1997 (P.L. 105-33), Internal Revenue Service Restructuring and Reform Act of 1998 (P.L. 105-206), Transportation Equity Act for the 21st Century (P.L. 105-178) and Tax and Trade Relief Extension Act of 1998 (P.L. 105-277).

(1) Except as specifically provided in sections 4, 4b, 20 and 25b, chapter 90, Oregon Laws 1999, the new provisions enacted and amendments to statutes made by chapter 90, Oregon Laws 1999, apply to transactions or activities occurring on or after January 1, 1999, in tax years beginning on or after January 1, 1999. (2) The effective and applicable dates, and the exceptions, special rules and coordination with the Internal Revenue Code, as amended, relative to those dates, contained in the Taxpayer Relief Act of 1997 (P.L. 105-34), the Taxpayer Browsing Protection Act (P.L. 105-35), the Balanced Budget Act of 1997 (P.L. 105-33), the Internal Revenue Service Restructuring and Reform Act of 1998 (P.L. 105-206), the Transportation Equity Act for the 21st Century (P.L. 105-178) and the Tax and Trade Relief Extension Act of 1998 (P.L. 105-277) shall apply for Oregon personal income and corporate excise and income tax purposes, to the extent they can be made applicable, in the same manner as they are applied under the federal Internal Revenue Code and related federal law. (3)(a) If a deficiency is assessed against any taxpayer for a tax year beginning before January 1, 1999, and the deficiency, or any portion thereof, is attributable to any retroactive treatment under chapter 90, Oregon Laws 1999, then any interest or penalty assessed under ORS chapter 305, 314, 315, 316, 317 or 318 with respect to the deficiency or portion thereof shall be canceled. (b) If a refund is due any taxpayer for a tax year beginning before January 1, 1999, and the refund or any portion thereof is due the taxpayer on account of any retroactive treatment under chapter 90, Oregon Laws 1999, then notwithstanding ORS 305.270 or 314.415 or other law, the refund or portion thereof shall be paid without interest. (c) Any changes required on account of chapter 90, Oregon Laws 1999, for a tax year beginning before January 1, 1999, shall be made by filing an amended return within the time prescribed by law. (d) If a taxpayer fails to file an amended return under paragraph (c) of this subsection, the Department of Revenue shall make any changes under paragraph (c) of this subsection on the return to which the changes relate within the period specified for issuing a notice of deficiency or claiming a refund as otherwise provided by law with respect to that return, or within one year after a return for a tax year beginning on or after January 1, 1999, and before January 1, 2000, is filed, whichever period expires later. [1999 c.90 §37]