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Tax Table Dates

Details of Tax Table Updates

Written by Alex Cornean

The latest Tax Tables available on the web site have the date shown below.

File

Date

tx_calcrules.d

01/01/26

tx_tables.d

01/01/26

The Tax Effective Date and date of the most recent program changes appear below. The tax entities (state, localities and Federal) are listed alphabetically.

Entity

Date of Program Change

Tax Effective Date

Notes

AL

07/04/07

07/04/07

See Tax Notes for AL

AR

06/26/26

01/01/26

AZ

01/03/23

01/01/23

See Tax Notes for AZ

BD

12/22/98

01/01/99

BOON

02/10/26

01/01/26

BOOR

02/10/26

01/01/26

CA

03/30/26

01/01/26

See Tax Notes for CA

CAMPBELLN

04/22/26

01/01/26

CAMPBELLR

04/22/26

01/01/26

CO

02/05/25

01/01/25

See Tax Notes for CO

CT

01/07/25

01/01/25

See Tax Notes for CT

DC

01/18/18

01/01/18

DE

12/31/13

01/01/14

DETN

01/01/13

04/10/13

DETR

01/01/13

04/10/13

FED

12/24/24

01/01/25

GA

06/26/26

01/01/26

HI

12/24/25

01/01/26

IA

12/11/25

01/01/26

See Tax Notes for IA

ID

09/01/26

07/23/26

IL

04/22/26

01/01/26

IN

12/17/25

01/01/26

See Tax Notes for IN

KENN

04/07/26

01/01/26

KENR

04/07/26

01/01/26

KS

08/06/24

07/01/24

KY

12/10/25

01/01/26

LA

03/27/26

01/01/26

See Tax Notes for LA

MA

03/25/26

01/01/26

See Tax Notes for MA

MD

06/05/26

01/01/26

See Tax Notes for MD

MDLO

01/20/04

01/01/04

ME

09/01/26

08/01/26

See Tax Notes for ME

MI

01/28/25

01/01/25

MN

04/15/26

01/01/26

MO

12/17/25

01/01/26

MS

04/22/26

01/01/26

See Tax Notes for MS

MT

12/22/26

01/01/26

MULN

09/24/26

01/01/26

MULR

09/24/26

01/01/26

NC

09/10/26

07/07/26

ND

04/29/26

01/01/26

NE

04/22/26

01/01/26

NJ

03/15/19

01/01/19

See Tax Notes for NJ

NM

12/23/25

01/01/26

NY

01/01/26

01/01/26

NYCN

09/20/01

05/01/00

NYCR

02/23/18

01/01/18

OH

08/13/26

08/01/26

OK

12/19/25

01/01/26

See Tax Notes for OK

OR

02/04/25

01/01/25

PA

12/29/03

01/01/04

PR

01/01/22

01/01/22

See Tax Notes for PR

RI

01/01/26

01/01/26

SC

12/16/25

01/01/26

UT

05/21/25

06/01/25

VA

06/30/25

07/01/25

See Tax Notes for VA

VI

01/02/24

01/01/24

VT

01/02/25

01/01/25

WI

01/24/22

01/01/22

WV

04/30/26

01/01/26

See Tax Notes for WV

YONN

07/28/14

01/01/15

YONR

01/01/26

01/01/26

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