Free Webinar | April 2: How Business Retirement Plan Contributions Are Impacted With IRS Extensions Posted byEntrepreneur Insider March 30, 2020 Leave a comment on Free Webinar | April 2: How Business Retirement Plan Contributions Are Impacted With IRS Extensions Mark J. Kohler and Matt Sorenson, Nationally respected Tax Lawyers, will dive deep into the impact IRS extensions have on your plans.