22 December 2025

2025 Year in Review | Tax Alerts: U.S. State & Local Tax

Federal Tax | State & Local Tax | International Tax
Human Capital & Workforce, Individual and Indirect Tax

This year in review lists all EY Tax Alerts concerning significant U.S. state and local tax developments during 2025.

 
Key U.S. state and local tax developments, 2025
 
12.17.2025Louisiana will implement combined state and parish sales and use tax return effective January 1, 2026, for December sales taxes (2025-2541)
12.17.2025Oregon delays 2026 increase to Statewide Transit Tax (2025-2540)
12.16.2025Alabama Department of Revenue publishes analysis of state tax conformity with OBBBA (2025-2525)
12.12.2025EY resources are now available to assist you with your payroll year-end activities (2025-2493)
12.03.2025District of Columbia enacts emergency bill to decouple from select OBBBA provisions (2025-2409)
12.02.2025Pennsylvania budget bill decouples from select OBBBA provisions (2025-2403)
12.02.2025San Francisco adopts final regulations on gross receipts tax sourcing (2025-2398)
12.02.2025IRS releases guidance for employees on deducting qualified tips and qualified overtime compensation for 2025 without employer information (2025-2395)
12.01.2025Ernst & Young's 2025 payroll year-end checklist is now available (2025-2393)

11.25.2025Iowa Department of Revenue announces changes to treatment of IRC Section 951A income after OBBBA (2025-2365)
11.24.2025Ohio law imposes new employer SUI surcharge starting in 2026 (2025-2360)
11.20.2025Puerto Rico exempts prescription medications from personal property tax at the municipal level (2025-2337)
11.18.2025Nebraska Department of Revenue issues guidance on restrictions to state's tax incentive programs (2025-2317)
11.13.2025IRS releases qualified retirement plan limitations for 2026; 401(k) pretax limit increases to $24,500 (2025-2287)
11.12.2025A FUTA credit reduction to apply in two jurisdictions in 2025 (2025-2281)
11.07.2025Massachusetts Department of Revenue regulation requires withholding on behalf of nonresidents on real estate sales valued at $1 million or more (2025-2253)
11.05.2025New FAQs on employee retention credits seek to clarify disallowances under OBBBA (2025-2229)

10.28.2025Ohio BTA holds that chargebacks are a permissible reduction to CAT gross receipts (2025-2179)
10.27.2025Social Security wage base to increase in 2026 (2025-2158)
10.24.2025New York City DOF proposes business corporation tax regulations on nexus standards and definitions (2025-2152)
10.22.2025New Mexico announces significant reporting changes to income tax withholding and the workers' compensation assessment fee (2025-2134)
10.21.2025Chicago's Mayor proposes a $21 per employee corporate head tax to close budget gap (2025-2124)
10.15.2025Colorado law lowers contribution rate for paid family and medical insurance starting in 2026 (2025-2090)
10.14.2025Michigan updates IRC conformity, decouples from select OBBBA provisions (2025-2077)
10.07.2025California updates general date conformity to Internal Revenue Code while continuing to decouple from significant federal provisions (2025-2032)
10.06.2025California Governor signs bill to exclude refund payments for specified federal environmental credits from gross income for 2026—2030 (2025-2021)
10.03.2025Colorado high court rules City of Lakewood's local tax on certain telecommunications services is invalid, creating potential for refunds (2025-2005)

09.30.2025IRS releases per diem rates under the high-low substantiation method effective October 1, 2025 (2025-1962)
09.26.2025State law developments could impact tax-exempt organizations (2025-1946)
09.24.2025Ohio Department of Taxation issues revised withholding tables effective October 1, 2025 (2025-1929)
09.24.2025Illinois Department of Revenue issues guidance on tax amnesty program set to begin on October 1 (2025-1928)
09.24.2025Illinois Department of Revenue issues guidance on tax amnesty program set to begin on October 1 (2025-1927)
09.24.2025Illinois franchise tax amnesty program to begin October 1 (2025-1926)
09.24.2025Illinois franchise tax amnesty program to begin October 1 (2025-1925)
09.12.2025Puerto Rico Treasury Department issues guidance on the adoption of amendments by qualified retirement plans to comply with SECURE 2.0 Act (2025-1854)
09.12.2025California finalizes amendments to market-based sourcing rules, applicable for tax years beginning on or after January 1, 2026 (2025-1848)
09.10.2025Oregon law provides a one-time 2025 SUI tax credit for certain employers (2025-1830)
09.09.2025Washington Department of Revenue addresses 'existing contracts' for services that will be taxable beginning October 1 (2025-1822)
09.03.2025Colorado enacts tax changes impacting businesses and individuals during special legislative session (2025-1788)

08.25.2025Ohio legislation lowers top personal tax rate retroactive to January 1, 2025, implements flat tax in 2026 (2025-1744)
08.21.2025Puerto Rico enacts legislation amending various sections of Puerto Rico's Internal Revenue Code, General Law of Corporations and Municipal Code (2025-1732)
08.20.2025Wisconsin law provides middle-income tax cuts and retirement income tax relief retroactive to January 1, 2025 (2025-1727)
08.19.2025Louisiana law expands nonresident income tax exemption for short-term business travelers (2025-1707)
08.12.2025Maryland issues revised income tax withholding formula for immediate use (2025-1680)
08.08.2025IRS announces that 2025 information statements/returns and withholding tables will not be updated for changes under the OBBBA (2025-1671)
08.06.2025Missouri law repeals paid sick leave requirement and automatic annual increases to the minimum wage (2025-1657)
08.04.2025Realty transfer tax and recordation fee updates in New Jersey, Pennsylvania, the City of Philadelphia and Rhode Island (2025-1650)

07.17.2025Georgia Appeals Court holds that calculation of local occupation tax must include nationwide offices (2025-1519)
07.16.2025Wisconsin budget bill includes individual and business tax changes (2025-1504)
07.15.2025Final federal reconciliation legislation has state income tax implications (2025-1487)
07.14.2025Ohio budget legislation affects some tax provisions (2025-1441)
07.14.2025Ohio Supreme Court upholds denial of CAT agency exclusion (2025-1439)
07.08.2025South Carolina law lowers the state's top marginal tax rate, retroactive to January 1, 2025 (2025-1396)

06.27.2025Illinois establishes three separate tax amnesty programs (2025-1375)
06.27.2025Illinois governor signs tax bill that impacts income and sales and use taxes, sports betting and tax incentives (2025-1374)
06.27.2025Illinois establishes three separate tax amnesty programs (2025-1373)
06.26.2025New Jersey adopts new and amended corporate business tax regulations (2025-1364)
06.26.2025Tax reconciliation bill released by Senate Finance Committee could have state income tax implications (2025-1363)
06.24.2025Minnesota enacts omnibus tax legislation that includes changes to R&D tax credit and data center incentives (2025-1349)
06.24.2025Maryland delays start date for employer contributions to its paid family and medical leave insurance program to January 1, 2027 (2025-1335)
06.24.2025Social Security Administration publishes wage base projections for 2026 through 2034 (2025-1334)
06.23.2025US Supreme Court holds that Wisconsin's denial of tax exemption for Catholic charity violates First Amendment by imposing denominational preferences (2025-1329)
06.23.2025Virginia updates income tax withholding formula and tables; legislation could prevent conformity with federal tax exemption for overtime pay and tips (2025-1326)
06.19.2025Wisconsin court of appeals upholds disallowance of intercompany royalty and interest expenses (2025-1307)
06.19.2025Texas enacts law to replace research and development franchise tax credit, repeal sales and use tax exemption (2025-1301)
06.18.2025Georgia income tax withholding formula and tables updated to reflect retroactive tax cut for 2025 (2025-1288)
06.17.2025California FTB modifies proposed amendments to market-based sourcing rules, moves applicable date to January 1, 2026 (2025-1286)
06.16.2025Kansas law conditionally lowers personal income tax rates starting in 2025 (2025-1266)
06.11.2025Alabama's state income tax exemption for qualified overtime pay expires effective July 1, 2025 (2025-1234)
06.05.2025Special report now available on federal and state Form W-4 compliance for 2025 (2025-1195)
06.03.2025Maryland Comptroller releases draft regulations implementing new 3% tax on data and information technology services (2025-1189)

05.29.2025House-passed tax bill could have state income tax implications (2025-1159)
05.27.2025Montana law allows individuals to claim previously unusable state-specific net operating loss carryovers (2025-1136)
05.22.2025Washington governor signs laws to expand sales tax base and increase business and occupation tax rates (2025-1125)
05.22.2025Iowa legislature approves bills to revamp state R&D credits, reduce aid for companies with mass layoffs or closures, and expand the retirement income exemption (2025-1123)
05.22.2025Indiana authorizes tax amnesty program for sometime in the second half of 2025 or in 2026 (2025-1122)
05.22.2025Indiana authorizes tax amnesty program for sometime in the second half of 2025 or in 2026 (2025-1121)
05.22.2025House-passed tax bill contains provisions affecting compensation and benefits, including eliminating taxes on tips and overtime (2025-1120)
05.22.2025Puerto Rico's Treasury Secretary announces four-day sales-and-use-tax holiday for hurricane-season purchases will take place from May 23-May 26, 2025 (2025-1112)
05.21.2025Alabama law provides relief from nonresident income tax for short-term business travelers and disaster/emergency personnel (2025-1106)
05.20.2025Tax reconciliation bill approved by House Ways & Means Committee could have state income tax implications (2025-1101)
05.20.2025New York governor signs budget legislation that includes various tax changes affecting businesses and individuals (2025-1100)
05.16.2025Idaho Tax Commission updates income tax withholding formula to reflect 2025 tax cut (2025-1070)
05.12.2025New York law authorizes full repayment of its outstanding federal unemployment insurance loan balance (2025-1048)
05.12.2025Alaska legislature approves market-based sourcing for sales of services and intangible property, and single sales factor apportionment for "highly digitized businesses" (2025-1046)
05.12.2025New York increases the Metropolitan Commuter Transportation Mobility Tax rate for large employers effective July 1, 2025 (2025-1044)
05.09.2025New York court upholds state's P.L. 86-272 internet activities regulation but rules against its retroactive application (2025-1023)
05.08.2025Arkansas enacts economic nexus and market-based sourcing provisions, among other corporate income tax changes (2025-1011)
05.07.2025Kansas enacts single sales factor apportionment, market-based sourcing, and contingent corporate income tax rate reductions (2025-0994)
05.06.2025Indiana law lowers personal income tax rate for 2026, with further incremental cuts starting in 2030 if revenue goals are met (2025-0991)

04.28.2025Utah Tax Commission releases revised withholding formula reflecting lower income tax rate for 2025 (2025-0958)
04.23.2025Mississippi lowers personal income tax rates in future years with total phase out possible if revenue goals are met (2025-0936)
04.22.2025Puerto Rico extends due dates for filing the March Monthly Sales and Use Tax Return and 2025 - 2026 Volume of Business Declaration to April 28, 2025 (2025-0931)
04.22.2025Georgia law lowers personal income tax retroactive to January 1, 2025, allows for future tax cuts (2025-0930)
04.17.2025Utah modifies financial institutions' sourcing formula for corporate franchise and income tax purposes (2025-0919)
04.15.2025Texas Comptroller adopts amendments to sales and use tax regulations for data processing services (2025-0897)
04.15.2025Nebraska adjusts state unemployment insurance tax rates for 2025, reissues 2025 SUI rate notices (2025-0894)
04.09.2025Utah law lowers the state income tax rate retroactive to January 1, 2025 (2025-0852)
04.09.2025IRS releases new FAQs on employee retention credits (2025-0847)
04.08.2025New Ohio law requires employers to provide pay stubs to their employees (2025-0840)
04.04.2025Comments on San Francisco's proposed gross receipts tax sourcing regulation due April 18 (2025-0823)
04.04.2025Puerto Rico proposes legislation aimed at reducing personal property tax on inventory (2025-0821)
04.01.2025New York Tax Appeals Tribunal rules on various broker-dealer specific issues reversing in part the NY DTA decision in Matter of Jefferies Group LLC & Subsidiaries (2025-0799)

03.28.2025Michigan delinquent employers still subject to higher 2025 state unemployment insurance wage base (2025-0779)
03.27.2025Maryland House approves new 3% sales tax on data and information technology services (2025-0770)
03.26.2025Indiana adopts market-based sourcing regulation (2025-0762)
03.25.2025Ohio simplifies SUI reporting and tax payments for employees working concurrently for related employers (2025-0752)
03.18.2025Kentucky updates Internal Revenue Code conformity and adopts reduction in individual income tax rate (2025-0708)
03.18.2025Seattle voters approve new payroll expense tax for social housing (2025-0706)
03.18.2025Idaho law lowers personal income tax rate retroactive to January 1, 2025 (2025-0705)
03.11.2025Delaware unemployment insurance law updated to include fixed wage base and new methodology for determining SUI tax rates (2025-0647)
03.10.2025Maryland proposes broad expansion of sales tax base to cover several business-to-business services (2025-0640)

02.26.2025Ohio revisits Internal Revenue Code conformity (2025-0562)
02.26.2025New Jersey seeks feedback on proposed new and amended corporate business tax regulations (2025-0561)
02.24.2025Kentucky lowers personal income tax rate effective January 1, 2026 (2025-0543)
02.20.2025Puerto Rico's Treasury Department announces qualified retirement plan limits for 2025 (2025-0526)
02.06.2025Ohio enacts changes to its marketplace facilitator provisions, sales tax exemptions for professional sports facilities, and CAT sourcing rules (2025-0419)
02.06.2025New York FY2025-26 proposed executive budget includes business and individual tax changes (2025-0418)
02.06.2025Kentucky Department of Revenue to pause operations during rollout of new online portal for business taxpayers (2025-0415)
02.03.2025State unemployment insurance wage bases and tax rates for 2025 (preliminary as of January 25, 2025) (2025-0392)

01.31.2025Massachusetts Governor's proposed budget includes tax changes (2025-0382)
01.31.2025Upcoming business tax filing deadlines in San Francisco and Los Angeles (2025-0372)
01.31.2025IRS releases federal mileage rates and luxury vehicle limit for 2025 (2025-0365)
01.28.2025California Governor and Los Angeles County provide property tax relief for property owners impacted by wildfires (2025-0344)
01.27.2025Michigan law creates research and development tax credit (2025-0339)
01.23.2025Ohio Supreme Court issues decision on the situs of healthcare services (2025-0310)
01.22.2025IRS releases guidance on tax treatment of state-paid family and medical leave contributions and benefits (2025-0297)
01.21.2025Montana water's-edge election due March 31, 2025, for calendar-year taxpayers (2025-0287)
01.21.2025Taxpayers should consider filing protective refund claims for Maryland digital advertising tax as expiration of three-year statute of limitations approaches (2025-0286)
01.17.2025Treasury finalizes regulations on review of federal tax controversies by IRS Appeals office (2025-0269)
01.16.2025IRS and California provide tax disaster relief for victims of California wildfires (2025-0248)
01.14.2025New York climate change superfund act signed into law (2025-0234)
01.09.20252025 state unemployment insurance taxable wage bases (2025-0171)
01.07.20252025 state supplemental, flat tax and highest income tax withholding rates with hyperlinks to the latest withholding tables/instructions (2025-0150)

Document ID: 2026-0006