BarbriSFCourseDetails
  • videocam Live Webinar with Live Q&A
  • calendar_month March 9, 2026 @ 1:00 p.m. ET./10:00 a.m. PT
  • signal_cellular_alt Intermediate
  • card_travel Corporate Tax
  • schedule 110 minutes

Mastering Multistate Taxation of C Corporations: Nexus, Federal Conformity, and Apportionment

Risk Assessments and Tax Mitigation Strategies

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About the Course

Introduction

This webinar will review the latest state guidance on the taxation of C corporations. Our panel of seasoned SALT professionals will review states' treatment of federal provisions, evolving interpretations of Public Law 86-272, and standard apportionment methods. They will provide practical strategies to mitigate tax and risk for C corporations operating in multiple states.

Description

C corporations are taxed separately and apart from their owners. These corporations are also subject to double taxation, once at the corporate level and again when dividends are distributed to shareholders. These differences from flow-through entities create unique planning considerations and issues for multistate corporations. 

Determining whether a business has nexus in particular states is critical. State legislation regarding nexus determinations, nexus-creating activities, and exceptions under Public Law 86-272 is volatile and varies from state to state. Additionally, apportionment methods, factors, and specific activities that create nexus must be understood to allocate and apportion income by state properly. Tax practitioners advising C corporations need to be cognizant of the latest legislation to comply with state-specific guidelines.

Listen as our panel of corporate tax experts explains state taxation of C corporations, including federal conformity, income allocations, and practical applications and tips for businesses and advisers of multistate C corporations. 

Presented By

Marc Gordon
State and Local Tax Senior Manager
TaxOps

Mr. Gordon brings over a decade of specialized experience in state and local income tax, as well as sales and use tax, for C-Corporations, Partnerships, and S-Corporations. Known for his proactive insight and client-first approach, he works closely with clients as a strategic partner, crafting tax approaches that align with and support their broader business initiatives. A licensed CPA, Mr. Gordon has held leadership roles at KPMG and Deloitte and expanded his public sector expertise as a Senior Finance Analyst for the City of Renton. 

Lindsay Haskell
Director of Corporate Tax
TaxOps

Ms. Haskell has more than 15 years of public and private accounting experience in corporate, income tax provision and compliance as well as indirect tax experience. She also works with business strategy tax impact analysis, transfer pricing and foreign reporting, M&A due diligence and entity restructuring, making sure the tax pieces fit business goals. Ms. Haskell's role extends to counseling clients under audit and aiding in their efforts to develop corporate tax departments. Prior to TaxOps, she worked in both the public and private sector in corporate income tax provision and compliance. Ms. Haskell spent time at Ernst & Young (EY) handling tax compliance and provisions for corporate, international, federal, and state and local projects. She also worked at Webroot Inc., which was acquired by Carbonite, Inc. in 2019, where she was called on to perform cross-functional compliance and planning integration across tax disciplines.

Credit Information
  • BARBRI is a NASBA CPE sponsor and this 110-minute webinar is accredited for 2.0 CPE credits.

Date + Time

  • event

    Monday, March 9, 2026

  • schedule

    1:00 p.m. ET./10:00 a.m. PT

I. Multistate Taxation of C Corporations: Introduction

II. Federal Conformity

A. Impact of OBBBA and other recent legislation

III. Nexus Determinations

A. Economic vs. physical presence nexus

B. PL 86-272 interpretations by states

IV. Apportionment and Allocation of Income

V. Practical Applications

VI. Year-End Considerations

The panel will cover these and other important issues:

  • Tax planning for C corporations operating in multiple states
  • Nexus determinations for multistate C corporations
  • Tips for tracking conformity across multiple jurisdictions
  • Recent state legislation impacting state taxation of C corporations

Learning Objectives

After completing this course, you will be able to:

  • Identify recent legislative changes impacting state taxation of C corporations
  • Determine how OBBBA impacts SALT
  • Decide how specific states apply recent federal tax provisions
  • Ascertain tips for tracking conformity across multiple jurisdictions
  • Field of Study: Taxes
  • Level of Knowledge: Intermediate
  • Advance Preparation: None
  • Teaching Method: Seminar/Lecture
  • Delivery Method: Group-Internet (via computer)
  • Attendance Monitoring Method: Attendance is monitored electronically via a participant's PIN and through a series of attendance verification prompts displayed throughout the program
  • Prerequisite:

    Three years+ business or public firm experience preparing complex tax forms and schedules, supervising other preparers or accountants. Specific knowledge and understanding of SALT taxation, nexus and apportionment as it applies to multi-state businesses.


BARBRI, Inc. is registered with the National Association of State Boards of Accountancy (NASBA) as a sponsor of continuing professional education on the National Registry of CPE Sponsors. State boards of Accountancy have final authority on the acceptance of individual courses for CPE Credits. Complaints regarding registered sponsons may be submitted to NASBA through its website: www.nasbaregistry.org.

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