Title 21, Chapter 2, Section 156
(a) The expenses of a primary shall be paid by the respective county, except that the expenses of municipal primaries shall be governed by subsections (b) and (c) of this Code section, and forms listed under paragraph (5) of Code Section 21-2-50 shall be furnished upon request by the Secretary of State.
(b) The expenses of a municipal primary shall be borne by the
political party holding such primary except as provided in this
subsection and subsection (c) of this Code section, and except that
the expenses of providing polling places on public premises and
electors lists shall be paid by the respective municipalities.
(c) The governing authority of each municipality may in its discretion authorize the payment by the municipality of any or all primary expenses other than those required by subsection (b) of this Code section to be paid by the municipality. This authorization of payment by the municipality of other primary expenses shall extend only to the expenses of primaries conducted by political parties which meet the definition of a "political party" contained in paragraph (25) of Code Section 21-2-2. Such additional expenditures as a municipal governing authority elects to make under this subsection are declared to be for a public purpose.