Recent Changes in Cobb County Property Tax Laws You Need to Be Aware Of

Posted by Daniel Jones on May 9, 2025 3:30:00 PM

Staying informed about property tax laws is crucial for every Cobb County homeowner. While the fundamental principles of ad valorem tax remain, recent years have seen notable changes and developments that could impact your tax bill and your rights as a property owner. Understanding these shifts, from alterations in homestead exemptions to changes in the tax digest growth, is essential for effective property tax management and potential appeal strategies. This article highlights key recent changes in Cobb County property tax laws, providing you with the information you need to stay informed and prepared.

The image features a closeup of a residential property in Cobb County Georgia showcasing a wellmaintained home with a manicured lawn and vibrant flower beds The house painted in soft hues of beige and white has a welcoming front porch adorned with ro-1

1. Cobb County Opts Out of Statewide Floating Homestead Exemption (HB 581)

What Happened: In 2024, the Georgia General Assembly passed House Bill 581, establishing a statewide "floating" homestead exemption that caps property tax increases based on inflation. However, Cobb County, along with the City of Marietta and Marietta City Schools, voted to opt out of this new state law.

Reasoning: Cobb County officials stated that their existing floating homestead exemption provides greater benefits to taxpayers than the new state law. The current system essentially freezes the taxable value for homeowners as long as they own and occupy the home.

Impact: For property owners in unincorporated Cobb County and the City of Marietta, the existing Cobb County floating homestead exemption rules remain in effect, rather than the new statewide system. It's important to understand the specifics of Cobb's current floating exemption to see how it applies to your property.


2. Cobb County Tax Digest Growth for 2025

Cooling Real Estate Market: Recent reports indicate that Cobb County's once active real estate market is cooling down.

Modest Tax Digest Increase: As a result, the Cobb County Board of Tax Assessors has predicted a modest 2% increase in the 2025 tax digest, down from 8.52% the previous year. East Cobb News+1East Cobb News+1

Impact on Reassessments: This suggests that significantly fewer homeowners in Cobb County will see their property values reassessed in 2025, and the average increase in valuations is expected to be lower than in recent years.


3. Homestead Exemption Application Deadline

The deadline to apply for homestead exemptions for the 2025 tax year was April 1, 2025. If you purchased and occupied a property as your primary residence in Cobb County before January 1, 2025, and haven't yet applied, you likely missed this year's deadline. You can still apply for the 2026 tax year.


4. Changes to Personal Property Tax Reporting for Businesses

For businesses in Cobb County, be aware that the Composite Conversion Factors on Schedule A of the Business Personal Property Tax Return have changed for 2025. Ensure you are using the updated forms and factors when filing your return.


Key Actions for Property Owners

  • Understand Your Homestead Exemption: Familiarize yourself with how Cobb County's floating homestead exemption works and its benefits for your tax bill if you have a homestead exemption.

  • Monitor Tax Digest Reports: Keep an eye on reports from the Cobb County Board of Tax Assessors regarding property value assessments and tax digest growth.

  • Ensure Timely Application for Exemptions: Don't miss the deadline to apply for homestead exemptions to save on your property taxes for your primary residence.

  • Stay Informed on Business Tax Reporting: If you own a business, ensure you're using the correct forms and factors for personal property tax reporting.

Staying informed about these recent changes and understanding how property taxes are calculated in Cobb County will help you manage your tax obligations effectively. Always refer to the official Cobb County Tax Assessor's and Tax Commissioner's websites for the most up-to-date information.


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