MS HB591

Lowers the minimum number of jobs required from 35 to 20 for companies establishing or transferring national/regional headquarters to qualify for sales tax exemptions on construction materials and machinery.

Extends sales tax exemption eligibility to companies expanding or making additions to existing national/regional headquarters in Mississippi after January 1, 2013, if they create a minimum of 20 new jobs.

Transfers responsibility for establishing criteria and procedures to determine "national or regional headquarters" qualification from the Mississippi Development Authority to the Department of Revenue.

Authorizes additional income tax credits for companies expanding headquarters after January 1, 2013, and creating 20 or more new jobs, with credit amounts of $500-$2,000 per employee depending on salary levels.