Georgia Department of Revenue (Business Taxes & Sales Tax Registration)
The Georgia Department of Revenue (GADOR) is the primary agency responsible for managing state-level business taxation in Georgia—including sales tax registration, corporate income taxes, withholding taxes, and issuing tax exemption certificates. Any business operating in Rockdale County that sells taxable goods or services, hires employees, or registers as an LLC or corporation must comply with these state tax obligations in addition to county-level licensing.
1. Register for Sales & Use Tax (GTC)
All businesses engaged in selling taxable goods or services in Rockdale County must register with the state for a Georgia Sales and Use Tax Number. This is done through the Georgia Tax Center (GTC)—an online portal managed by GADOR.
Once registered, you’ll receive a Certificate of Registration and be legally authorized to collect and remit state sales tax on qualifying transactions. Keep this certificate visible at your place of business and up to date annually.
Learn more: Georgia Sales & Use Tax Overview
2. File Sales Tax Returns (Form ST-3)
Sales tax must be reported and remitted through the GTC using Form ST-3. Businesses are typically required to file monthly, quarterly, or annually depending on revenue thresholds. You must submit your sales report and payment by the 20th of the month following your filing period.
Late filings may incur penalties, including interest on unpaid balances.
3. Employer Withholding Tax Requirements (G-4, G-7)
If your business has employees, you are required to register for Georgia income tax withholding. Employees must complete Form G-4, while employers are required to file quarterly reports using Form G-7 via the GTC portal.
Failure to withhold or submit payroll taxes properly can lead to audits or enforcement actions from GADOR.
4. Corporate, LLC, and Business Tax Filing
LLCs, partnerships, and corporations must file business income tax annually with GADOR through GTC. Depending on your entity type, you may be subject to Georgia corporate income tax, net worth tax, or withholding requirements for members or partners.
Estimated tax payments may also be required if your expected tax due exceeds $500 annually. Business owners should consult the Business Tax section of GADOR for entity-specific requirements and due dates.
5. Tax Exemptions and Resale Certificates
Georgia businesses may qualify for specific tax exemptions—especially on goods purchased for resale. The ST-5 Sales Tax Exemption Certificate must be completed and given to suppliers to avoid being charged sales tax on qualified purchases.
Retailers must maintain a copy of each resale certificate received and verify its validity.
6. Forms, Portals & Contact Info
- Official Website: dor.georgia.gov
- File & Register: Georgia Tax Center (GTC)
- Business Tax Forms Index: All Business Forms
- Customer Support Line: (877) 423‑6711
- Help Desk: Contact GADOR
