A small business corporation elects federal S corporation status by filing federal Form 2553 (Election By a Small Business Corporation) with the Internal Revenue Service. When a corporation elects federal S corporation status it automatically becomes an S corporation for California.
In order to become an S corporation, the corporation must submit Form 2553, Election by a Small Business Corporation signed by all the shareholders.
To verify your S corporation status: Check Your Initial Election Documents. Locate your filed Form 2553. Review IRS acceptance letter. Examine past tax returns. Contact the IRS Business Unit. Call the dedicated business line. Have your EIN ready. Request written confirmation if needed.