By David Oase
Published 2 February 2026
3 min read
Tax laws continue to evolve, and 2026 brings several important IRS rule changes and ongoing adjustments that affect how individuals and businesses prepare their tax returns. Some provisions have expired, others have been scaled back, and IRS enforcement has become more sophisticated.
1. EXPIRING AND PHASING-OUT TAX PROVISIONS
Many tax benefits introduced in recent years were temporary. As those provisions expire or phase out in 2026, taxpayers may find that deductions or credits they relied on previously are no longer available or are reduced. This commonly affects certain business-related deductions (meals only partially deductible) and electric vehicle costs.
2. CHANGES TO BUSINESS EXPENSE DEDUCTIONS
Business deductions are easy to mess up, particularly where personal and business expenses overlap.
Meals and Entertainment: Business meal deductions are subject to strict rules. To qualify, meals must be ordinary and necessary, not lavish or extravagant, and proper documentation must be maintained. Office parties are deductible. Travel meals are deductible (more than 50 miles away from home).
Non-Deductible Meals: Meals for employees to work on the job on-site are NOT deductible. Water and snacks for employees are not deductible.
Employee-Related Benefits: Health insurance, 401k provisions, mileage reimbursement, educational assistance, child care, and employee use of business vehicles (with mileage logs). Monthly vehicle allowance is taxable.
Mixed-Use Expenses: Vehicles, home offices, and phone usage must be properly allocated between business and personal use. Overstating business use is a common red flag.
3. INCREASED IRS ENFORCEMENT AND AUTOMATION
The IRS continues to expand its use of automation, data matching, and analytics. Returns are now compared against third-party data such as W-2s and 1099s, brokerage statements, and payment processor reports. Discrepancies are identified earlier, often delaying refunds. The IRS is also using its power to fix “Math Errors” to deny claiming dependents and other tax credits.
4. UPDATED INCOME REPORTING REQUIREMENTS
Gig workers and independent contractors must fully report all income, even if taxes were not withheld. The failure to receive a 1099 does NOT relieve you of the requirement to report that income. Digital payment platforms may report payments to the IRS even if you don’t receive a physical form. Digital assets: “moving” your money from one crypto to another can trigger a tax bill. The IRS has a new 1099-DA for reporting.
5. ESTIMATED TAX PAYMENT ACCURACY IS MORE CRITICAL THAN EVER
Common issues: payments applied to the wrong tax year, missing or late payments, underreporting or overreporting total payments made, and payments made in the spouse’s name when the primary taxpayer should be listed.
6. FILING TIMING, DEADLINES, AND PROCESSING DELAYS
While official filing deadlines have not changed, processing times continue to vary. Filing too early — before receiving all tax documents — often leads to amended returns. Electronic filing with direct deposit remains the fastest option, but accuracy is far more important than speed.
The 2026 tax filing season reflects a continued trend toward tighter enforcement, more detailed reporting, and fewer temporary tax breaks.
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