State Tax Updates March 2026: Utah Rate Cut, Digital Taxes, Georgia IRC Changes
If you run a business in multiple states or have clients across state lines, keeping up with state tax updates 2026 can feel like a full-time job. Every week brings new legislation, court decisions, and regulatory guidance that can directly impact your tax obligations. This March alone, several states passed major tax law changes that could affect your bottom line, from lower income tax rates in Utah to entirely new digital product taxes.
In our practice at SW Accounting & Consulting, we track these developments closely so our clients don’t have to. Here’s a comprehensive breakdown of the most significant state tax changes from the final week of March 2026, based on Deloitte’s State Tax Matters newsletter and our own analysis.
What Changed with Utah’s State Tax Updates 2026? 💰
Utah made headlines by cutting both corporate and personal income tax rates to 4.45% and extending its passthrough entity tax (PTET) election, making it one of the most business-friendly tax environments in the nation.
Utah’s new law represents a significant shift in the state’s tax landscape. Previously, Utah’s income tax rate was higher, and the PTET election had a limited window. Now, businesses organized as S corporations, partnerships, and LLCs taxed as partnerships can continue to elect into the PTET regime, which allows owners to deduct state taxes at the entity level and bypass the $10,000 federal SALT deduction cap.
But that’s not all Utah did. The state also enacted several new laws targeting the digital economy:
- Digital products are now taxable whether streamed or downloaded. This eliminates the previous distinction that some businesses relied on to avoid collecting sales tax on streaming services.
- A new 2% excise tax applies to certain entities providing access to digital products and services.
- Abandoned digital assets, including virtual currency, are now addressed under Utah’s unclaimed property law, potentially requiring liquidation.
- A new annual gross receipts tax targets entities delivering targeted advertising in the state.
In our practice, we’ve seen many California-based business owners eyeing Utah as a relocation destination for tax purposes. The 4.45% flat rate is significantly lower than California’s top marginal rate of 13.3%. However, the new digital economy taxes mean that tech companies and digital service providers need to carefully evaluate their total Utah tax exposure before making any moves. We advise clients to run a comprehensive multi-state tax model before committing to any relocation strategy.
How Do Georgia and New Mexico’s IRC Conformity Changes Affect Businesses? 📜
Georgia updated its conformity to the Internal Revenue Code (IRC) but specifically decoupled from IRC Section 174A, while New Mexico enacted separate legislation addressing its own IRC conformity. Both changes can significantly impact how businesses calculate their state taxable income.
IRC conformity is one of the most critical — and often overlooked — aspects of state taxation. When a state “conforms” to the IRC, it means the state uses federal taxable income as the starting point for calculating state taxes. But states can choose to decouple from specific federal provisions they don’t want to adopt.
Georgia’s decision to decouple from IRC Section 174A is particularly noteworthy. Under the federal Tax Cuts and Jobs Act (TCJA), research and experimental (R&E) expenditures must be capitalized and amortized over five years (15 years for foreign research) rather than deducted immediately. By decoupling, Georgia may allow businesses to continue deducting these costs more favorably at the state level, depending on the specifics of the new law.
New Mexico’s conformity legislation addresses a different set of concerns, ensuring the state’s tax code aligns with more recent federal changes while maintaining its own policy priorities.
If your business has operations in Georgia and claims significant R&D expenses, the IRC 174A decoupling could create a meaningful difference between your federal and Georgia state taxable income. Make sure your tax preparer is aware of this change and adjusts your state return calculations accordingly. Failing to account for conformity differences is one of the most common — and costly — state tax errors we see.
What Is Louisiana’s New Mobile Workforce Rule? 💼
Louisiana updated its rules to impose a 30-day threshold for nonresident withholding under its new “mobile workforce” law, giving employers a clear safe harbor for employees who travel to the state for short periods.
For businesses with employees who travel across state lines, withholding obligations have always been a headache. Previously, some states required withholding from the very first day an employee worked within their borders. Louisiana’s new mobile workforce law simplifies this by establishing a bright-line 30-day threshold.
Here’s how it works in practice:
- If a nonresident employee works in Louisiana for 30 days or fewer during the calendar year, the employer is not required to withhold Louisiana income tax.
- Once the employee exceeds the 30-day threshold, withholding obligations kick in for all compensation earned in Louisiana that year.
- Employers should maintain accurate records of employee travel days to Louisiana to ensure compliance.
How Are States Handling Sales Tax on Digital Products and Services? 📱
Utah’s new law makes digital products taxable regardless of delivery method, and a separate 2% excise tax targets entities providing digital product access — reflecting a growing national trend to tax the digital economy.
The taxation of digital products remains one of the fastest-evolving areas of state tax law. States are increasingly moving to ensure that digital goods and services are treated the same as their physical counterparts for sales tax purposes.
State-by-State Digital Tax Comparison
| State | Digital Product Tax | Key Change (2026) |
|---|---|---|
| Utah | Taxable (streamed or downloaded) | New 2% excise tax on digital access providers |
| Georgia | Varies by product type | Online platform sales tax case remanded |
| Texas | Generally taxable | Crude oil import-export exemption upheld |
| Colorado | Varies | Penny rounding guidance issued |
The Georgia court case is particularly interesting. The state high court vacated and remanded a decision regarding whether an online platform was responsible for collecting sales tax on underlying transportation services for periods before the landmark South Dakota v. Wayfair decision. This case could set an important precedent for how marketplace facilitator laws apply retroactively.
What Should Multi-State Businesses Do Right Now? ✅
Businesses operating across state lines should review their nexus footprint, update withholding procedures, and consult with a tax professional to ensure compliance with these new laws before the next filing deadline.
Here are the immediate action items we recommend to our clients at SW Accounting & Consulting:
- Review your nexus map: With Utah’s new digital taxes and the evolving post-Wayfair landscape, confirm which states you have sales tax obligations in.
- Update employee travel tracking: Louisiana’s 30-day mobile workforce threshold requires accurate day-counting. Implement a tracking system if you don’t have one.
- Check your R&D deductions: If you operate in Georgia, the IRC 174A decoupling could save you money. Review your state return calculations.
- Assess digital product exposure: If you sell digital products or services in Utah, determine whether you’re now subject to the new sales tax and excise tax provisions.
- Review PTET elections: Utah’s PTET extension gives passthrough entity owners another opportunity to reduce their overall tax burden. Evaluate whether electing in makes sense for your situation.
Utah’s new 4.45% income tax rate makes it the 11th lowest state income tax rate in the nation. Combined with the PTET extension, qualifying businesses could see effective state tax savings of 20-30% compared to high-tax states like California (13.3%) or New York (10.9%). The 2% digital excise tax, while new, remains relatively modest compared to the overall tax savings available.
The “penny rounding” rules enacted in Colorado, Tennessee, and Washington may seem minor, but they affect every cash transaction. Retailers must update their point-of-sale systems to comply with new rounding requirements arising from the terminated penny production. Non-compliance could result in audit adjustments on collected sales tax amounts.
