Small Business Investment Act of 1980

[AI summary unavailable — showing source text] Small Business Investment Act of 1980 - Amends the Internal Revenue Code to increase from 15 to 25 the maximum number of shareholders a subchapter S corporation may have. Ends the requirement that an employer furnish a W-2 wage report upon termination to any employee whose employment is terminated before the close of the calendar year. Requires issuance of such interim report only upon timely request by such employee, and then within 30 days after receipt of such request. Allows a credit against the individual income tax for incentive stock (original issue common or preferred stock) acquired in a domestic corporation whose equity capital does not exceed $15,000,000 immediately before the unrestricted public offering of such stock. Specifies the amount of such credit to be an amount equal to the sum of: (1) ten percent of the first $10,000 of such taxpayer's adjusted basis; plus (2) five percent of any other amount of such adjusted basis. Limits such credit to $3,000 annually ($6,000 in the case of a married individual filing a joint return). Provides a transitional limit of $1,500 ($3,000 for a joint return) for 1981. Creates a category of incentive stock options for employees, who…