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...
by Larson Gross | Jan 1, 2026
INSIGHTS U.S. Individual Tax Calendar Note: If any date lands on a weekend or holiday, the filing deadline is moved to the following business day. Due Date Return/Period Covered File With Due Date if Extension Filed Jan. 15 1040-ES Individual 4th estimated tax...
by Larson Gross | Dec 18, 2025
INSIGHTS Washington DOR: Immediate Tax Relief & Business Support for Flood Victims by Larson Gross ARTICLE | Dec 17, 2025 The Washington State Department of Revenue (DOR) is actively offering disaster relief provisions to help flood-impacted businesses manage...
by Larson Gross | Nov 24, 2025
INSIGHTS 2025 Year-End Tax Tips for Individuals & Families by Teresa Durbin, CPA, Larson Gross As we approach the end of 2025, taxpayers are navigating a familiar—but still shifting—tax environment. Many of the Tax Cuts and Jobs Act (TCJA) provisions were...
by Larson Gross | Nov 19, 2025
INSIGHTS EFTPS Enrollment Guide Preparing for 2026 by Demi Vinke, CPA, Larson Gross Starting on January 1, 2026, all payments to the IRS will be required to be made electronically. For businesses, the Electronic Federal Tax Payment System (EFTPS) tax payment...
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