Check our 2025 Tax Deadlines For C-Corp Startups or Click for your customized tax compliance calendar by startup hub
In 2025, the most important tax deadlines for Atlanta companies (C-Corps), beyond the April 15th federal and state tax return deadlines, are the January 31th Annual Atlanta Business License Renewal and the August 15th City of Atlanta Property Tax. Georgia and the federal government have other important dates - see the calendar below or add the ical to your calendar.
Delaware Quarterly Estimated Franchise Tax. Pay 20% of your estimated annual amount (if annual amount expected to exceed $5,000).
Georgia Corporate Income and Net Worth Tax - Form 600 final due date if extension was filed.
C Corp Form 1120 Tax Return final due date for Atlanta startups if extension was filed.
Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
Click The Links To Learn More About These Filings And 2025 Atlanta Startup Tax Deadlines
Claim Research & Development Tax Credits on Form 941, and file annual Federal Unemployment Tax Act (FUTA) return on Form 940. Use our handy calculator to estimate your possible research and development tax credit.
Annual Atlanta Business License Renewal (payment due April 1).
Delaware Annual Franchise Report filing deadline. Your Atlanta startup will pay a minimum of $400, which increases if you have significant funding.
IRS 30-day automatic extension: provide Form 1095-B and Form 1095C to employees.
Annual Atlanta Business License payment due. A general business license is required of all businesses operating within the city limits of Atlanta.
Annual registration with the Secretary of State (SOS). The Georgia Secretary of State encourages companies to use the e-filing option (use the link in this deadline calendar entry).
PT-50P Tangible Personal Property Tax Return filed with county tax commissioner.
Georgia Corporate Income and Net Worth Tax - Form 600. This deadline can be extended to October 15.
C Corp Form 1120 Tax Return due. The Federal Form 1120 is the U.S. Corporation Income Tax Return, which the IRS has companies use to report their income, losses, credits, etc., and to figure the income tax liability of the corporation. Can extend the deadline to Oct. 15. All Atlanta startups are required to file this Federal form by this deadline unless they file an extension.
Federal Quarterly Estimated Tax 1st installment (first quarter 2024).
File the R&D Tax Credit Form 6765 with your tax return. Can extend to October 15. We strongly recommend working with a qualified CPA to prepare this form in conjunction with your Form 1120 if you are a high-growth startup – if your company is going to be acquired by a major technology company, that company’s CFO will use a strong tax team to do due diligence on this.
Due date for Atlanta startup employees to make contributions to Individual Retirement Accounts (IRAs) for 2023 (Employee Benefits).
Atlanta startups can claim Research & Development Tax Credits on Form 941.
Delaware Quarterly Estimated Franchise Tax. Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000).
Federal Quarterly Estimated Tax 2nd installment (second quarter 2024).
Claim Research & Development Tax Credits on Form 941 .
Delaware Quarterly Estimated Franchise Tax. Pay 20% of your estimated annual amount (if annual amount expected to exceed $5,000).
Federal Quarterly Estimated Tax 3rd installment (third quarter 2024).
Georgia Corporate Income and Net Worth Tax - Form 600 final due date if extension was filed.
C Corp Form 1120 Tax Return final due date for Atlanta startups if extension was filed.
Claim your Research & Development Tax Credits on Form 941.
Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
Federal Quarterly Estimated Tax 4th installment (fourth quarter 2024).
Note: 2025’s federal tax deadline is April 15. Weekend or holiday deadlines are moved to the next business day. Typically states usually follow the same calendar for state income tax returns
If your Delaware C-Corp Atlanta funded startup needs tax help contact us today!
ATLANTA, STARTUPS AND TAXES
The city of Atlanta is steadily becoming a center for startup investment. According to Venture Atlanta, their conference has helped launch more than 800 companies and raise $7.7 billion in funding to date. In 2022, startups in Atlanta raised $1.9 billion in venture funding, making Atlanta number 12 in the top US cities for VC funding. According to Growth List, the total funding raised in Atlanta in 2023 was $2 billion.
The most important taxing authorities for companies based in Atlanta are:
In 2025, the most important tax deadlines for Atlanta companies (C-Corps), beyond the April 15th federal and state tax return deadlines, are the Annual Atlanta Business License Renewal and the City of Atlanta Property Tax. Georgia and the federal government have other important dates - see the calendar above.
2024 startup tax deadlines are supplied for reference purposes only, and should not be used when making decisions in 2025 or beyond. Always consult your tax professional, and see our disclaimer below.
Click The Links To Learn More About These Filings And 2024 Atlanta Startup Tax Deadlines
Federal Quarterly Estimated Tax 4th installment (fourth quarter 2023).
Annual Atlanta Business License Renewal (payment due April 1).
Atlanta startups should send 1099s to contractors. Send W2s to employees and e-file 1099-MISC for non-employee compensation with the IRS. Or file Form 8809 for a 30-day extension to file W2s and 1099-MISC for non-employee compensation.
Claim Research & Development Tax Credits on Form 941, and file annual Federal Unemployment Tax Act (FUTA) return on Form 940. Use our handy calculator to estimate your possible research and development tax credit.
IRS 30-day automatic extension: provide Form 1095-B and Form 1095C to employees.
Delaware Annual Franchise Report filing deadline. Your Atlanta startup will pay a minimum of $400, which increases if you have significant funding.
PT-50P Tangible Personal Property Tax Return filed with county tax commissioner.
Annual Atlanta Business License payment due. A general business license is required of all businesses operating within the city limits of Atlanta.
Annual registration with the Secretary of State (SOS). The Georgia Secretary of State encourages companies to use the e-filing option (use the link in this deadline calendar entry).
Georgia Corporate Income and Net Worth Tax - Form 600. This deadline can be extended to October 15.
Due date for Atlanta startup employees to make contributions to Individual Retirement Accounts (IRAs) for 2023 (Employee Benefits).
File the R&D Tax Credit Form 6765 with your tax return. Can extend to October 15. We strongly recommend working with a qualified CPA to prepare this form in conjunction with your Form 1120 if you are a high-growth startup – if your company is going to be acquired by a major technology company, that company’s CFO will use a strong tax team to do due diligence on this.
Federal Quarterly Estimated Tax 1st installment (first quarter 2024).
C Corp Form 1120 Tax Return due. The Federal Form 1120 is the U.S. Corporation Income Tax Return, which the IRS has companies use to report their income, losses, credits, etc., and to figure the income tax liability of the corporation. Can extend the deadline to Oct. 15. All Atlanta startups are required to file this Federal form by this deadline unless they file an extension.
Atlanta startups can claim Research & Development Tax Credits on Form 941.
Delaware Quarterly Estimated Franchise Tax. Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000).
Federal Quarterly Estimated Tax 2nd installment (second quarter 2024).
Claim Research & Development Tax Credits on Form 941 .
Delaware Quarterly Estimated Franchise Tax. Pay 20% of your estimated annual amount (if annual amount expected to exceed $5,000).
Federal Quarterly Estimated Tax 3rd installment (third quarter 2024).
Georgia Corporate Income and Net Worth Tax - Form 600 final due date if extension was filed.
C Corp Form 1120 Tax Return final due date for Atlanta startups if extension was filed.
Claim your Research & Development Tax Credits on Form 941.
Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
View tax compliance dates for Austin, Boston, New York City, Palo Alto, San Francisco, Santa Monica, Seattle, Washington DC, Atlanta, Salt Lake City, Mountain View, Chicago, Dallas, Miami, and San Jose
How Much Does a Startup Tax Return Cost? Try Kruze Consulting's Tax Preparation Pricing Tool.
How much can your startup save in payroll taxes? Estimate your R&D tax credit using our free calculator.
Every startup is different and so are its tax compliance needs. This is only a guideline. Please consult your tax professional. IRS Circular 230 Disclaimer: To ensure compliance with IRS Circular 230, any U.S. federal tax advice provided in this communication is not intended or written to be used, and it cannot be used by the recipient or any other taxpayer for the purpose of avoiding tax penalties that may be imposed on the recipient or any other taxpayer. Copyright © Kruze Consulting
Check our 2025 Tax Deadlines For C-Corp Startups or Click for your customized tax compliance calendar by startup hub
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Founder & CEO, Vanessa Kruze, is a CPA, Deloitte Tax alumni, and former Controller of a 120+ FTE startup. Kruze CFO, Scott Orn, is a Kellogg MBA, former VC Partner, and investment banker. Our Staff Accountants and Controllers come from the Big 4 and venture backed startups.
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