§ 36 §5403 — Annual adjustments for inflation

On or about September 15th of each year as specified in this section, the assessor shall multiply the cost-of-living adjustment for taxable years beginning in the succeeding calendar year by the following:
1.
Individual income tax rate tables.
For the tax rate tables in section 5111:
2.
Standard deductions.
In 2025 and each year thereafter, by the dollar amount contained in section 5124‑C, subsection 1‑B, paragraph A, subparagraph (1), except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost- of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2017;
3.
Itemized deductions.
By the dollar amount of the itemized deduction limitation amount in section 5125, subsection 4;
4.
Individual income tax standard deduction and itemized deduction phase-out.
Beginning in 2018 and each year thereafter, by the dollar amount contained in the numerator of the fraction specified in section 5124‑C, subsection 2, paragraphs A, B and C and section 5125, subsection 7, paragraphs A, B and C, except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2017;
5.
Sales tax fairness credit.
For the sales tax fairness credit:
6.
Property tax fairness credit.
For the property tax fairness credit:
7.
Personal exemptions.
Beginning in 2018 and each year thereafter, by the dollar amounts contained in section 5126‑A, subsection 1, except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2017;
8.
Personal exemption phase-out.
Beginning in 2018 and each year thereafter, by the dollar amount of the applicable amounts specified in section 5126‑A, subsection 2, paragraphs A, B and C, except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2017;
9.
Dependent exemption tax credit amount.
Beginning in 2024 and each year thereafter, by the dollar amount of the dependent exemption tax credit under section 5219‑SS, except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2023. If the credit amount, adjusted by application of the cost-of-living adjustment, is not a multiple of $5, any increase must be rounded to the next lowest multiple of $5;
10.
Dependent exemption phase-out.
Beginning in 2025 and each year thereafter, by the dollar amount of the applicable amounts specified in section 5219‑SS, subsection 4, paragraphs A, B and C, except that, for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2024; and
11.
(REALLOCATED FROM T. 36, §5403, sub-§10) Income deduction for retirement plan benefits; applicable amount.
Beginning in 2025 and each year thereafter, by the dollar amount of the applicable amounts specified in section 5122, subsection 2, paragraph M‑3, except that for the purposes of this subsection, notwithstanding section 5402, subsection 1‑B, the "cost-of-living adjustment" is the Chained Consumer Price Index for the 12-month period ending June 30th of the preceding calendar year divided by the Chained Consumer Price Index for the 12-month period ending June 30, 2024.
Except for subsection 5, paragraph A and subsection 9, if the dollar amount of each item, adjusted by the application of the cost-of-living adjustment, is not a multiple of $50, any increase must be rounded to the next lowest multiple of $50.
If the cost-of-living adjustment for any taxable year would be less than the cost-of-living adjustment for the preceding calendar year, the cost-of-living adjustment is the same as for the preceding calendar year. The assessor shall incorporate such changes into the income tax forms, instructions and withholding tables for the taxable year.

Legislative History

IB 1981, c. 2, §4 (NEW). PL 1983, c. 3, §6 (AMD). PL 1987, c. 430, §2 (AMD). PL 1987, c. 819, §14 (RPR). PL 1989, c. 495, §7 (AMD). PL 1991, c. 528, §CCC (AMD). PL 1991, c. 528, §RRR (AFF). PL 1991, c. 591, §CCC (AMD). PL 1999, c. 731, §T10 (RPR). PL 1999, c. 731, §T11 (AFF). PL 2009, c. 213, Pt. WWW, §1 (AMD). PL 2009, c. 213, Pt. WWW, §2 (AFF). PL 2011, c. 380, Pt. N, §18 (AMD). PL 2011, c. 380, Pt. N, §19 (AFF). PL 2013, c. 368, Pt. Q, §11 (AMD). PL 2013, c. 368, Pt. Q, §12 (AFF). PL 2013, c. 368, Pt. TT, §19 (AMD). PL 2013, c. 551, §4 (RPR). PL 2015, c. 267, Pt. DD, §33 (RPR). PL 2017, c. 170, Pt. D, §10 (AMD). PL 2017, c. 474, Pt. B, §§19-25 (AMD). PL 2019, c. 379, Pt. C, §5 (AMD). PL 2023, c. 412, Pt. S, §5 (AMD). PL 2023, c. 412, Pt. ZZZ, §§7-11 (AMD). PL 2025, c. 388, Pt. H, §§2-4 (AMD). PL 2025, c. 388, Pt. Q, §§3-5 (AMD). RR 2025, c. 1, Pt. A, §§57-59 (COR).