by Larson Gross | Sep 4, 2026
INSIGHTS Washington Wildfire Tax Relief: What It Means by Larson Gross ARTICLE | September 04, 2026 The IRS has moved many federal filing and payment deadlines to February 1, 2027, for qualifying individuals and businesses affected by Washington wildfires. The...
by Larson Gross | Aug 24, 2026
INSIGHTS Washington Tax Law Update: Millionaires’ Tax, Estate Tax, Luxury Taxes, and B&O Changes by Larson Gross ARTICLE | August 24, 2026 Washington enacted significant tax legislation in 2025 and 2026 affecting high-income individuals, estates, businesses,...
by Larson Gross | Jul 13, 2026
INSIGHTS Section 179D: Don’t Lose a Deduction Already Earned by Larson Gross ARTICLE | July 9, 2026 TL;DR: The June 30, 2026, start-date deadline for Section 179D has passed, but projects already underway may still qualify. Building owners, developers, and...
by Larson Gross | Jun 4, 2026
INSIGHTS Could You Be Eligible for a Refund of COVID-Era IRS Penalties? by Larson Gross ARTICLE | June 05, 2026 If you paid or were assessed IRS penalties or interest during the COVID-era period, a recent federal court decision may be worth reviewing. The...
by Larson Gross | Jan 1, 2026
INSIGHTS U.S. Business Tax Calendar Due Date Return/Period Covered File With Extension Due Date Jan. 15 941/943 payroll tax deposit (monthly depositors)* IRS 1120 U.S. Corporation return for fiscal years ending Sept. 30 IRS June 15 990 Exempt Organizations return...
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