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State Tax Updates May 2026: California, Idaho, Illinois, Kansas, Kentucky

What are the most important state tax updates for May 2026? Deloitte’s State Tax Matters (Issue 2026-17) highlights five income/franchise developments — California’s agribusiness three-factor apportionment ruling, Idaho’s Supreme Court fiscal-year tax rate decision, Illinois’s intercompany interest addback, Kansas’s GILTI deletion, and Kentucky’s IRC §174A modifications — plus key sales/use updates. For multistate tax teams…

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Deloitte State Tax Matters April 2026: Key Multi-State Tax Updates %sep% %sitename%

What are the most important multi-state tax developments in April 2026? The Deloitte State Tax Matters April 2026 report (Issue 2026-14) highlights critical developments including Utah’s new Targeted Advertising Tax, state decoupling from federal bonus depreciation rules, Maryland’s disconformity from the OBBBA, and Indiana’s limited tax amnesty program — all with significant implications for multi-state…

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ASC 740 Quarterly Update Q1 2026: Key Tax Accounting Changes

What are the most important ASC 740 developments in Q1 2026? The ASC 740 quarterly update 2026 covers five major areas: Rev. Proc. 2026-17 election relief for bonus depreciation, new CAMT AFSI guidance, tariff accounting under IEEPA, section 987 FX final regulations, and significant multistate legislative activity across 28 states. The first quarter of 2026…

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5 Tax Bills Congress Advanced in March 2026 + IRS Tax Deadline 2026 Warnings

What happened in Congress on taxes in March 2026? The House Ways and Means Committee advanced five bipartisan tax bills, and the IRS tax deadline 2026 of April 15 is now critical: over $1.2 billion in unclaimed 2022 refunds will be permanently forfeited if taxpayers miss it. March 2026 brought significant tax-related legislative activity from…

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State Tax Updates March 2026: Utah Rate Cut, Digital Taxes, Georgia IRC Changes

What are the most important state tax updates in March 2026? From Utah’s historic income tax rate cut to 4.45% and new digital product taxes, to Georgia’s IRC conformity changes and Louisiana’s mobile workforce rules, here are the key state tax updates 2026 that businesses and taxpayers need to know right now. If you run…