Understanding DeKalb County's Property Tax Calendar and Important Deadlines for 2025

If you own property in DeKalb County, Georgia, it’s important to stay on top of key tax deadlines. 📬 This guide outlines the 2025 property tax calendar, including appeal windows, payment deadlines, and homestead exemption dates.

⚠️ Always verify these dates with the official DeKalb County Tax Commissioner's Office, as timelines may shift slightly each year.

🗓️ 2025 DeKalb County Property Tax Calendar

• 📌 January 1, 2025: Property assessment date — ownership and property condition are assessed as of this date.

• 📝 January 1 – April 1, 2025:

  • Deadline to file a property tax return if you believe the records are incorrect.

  • Final date to apply for homestead exemptions for 2025.

• 📬 Late May / Early June 2025:

  • DeKalb County Assessment Notices are mailed, showing your property’s fair market value (FMV) for 2025.

• ⏱️ 45 Days from Notice Date:

  • Deadline to appeal your property assessment if you disagree with the valuation.

  • The exact due date will be listed on your notice.

• ⚖️ July 2025 (Estimated):

  • Millage rates are set by the DeKalb Board of Commissioners.

• 💌 August 2025 (Estimated):

  • Property tax bills are mailed, reflecting the new millage rates and final amounts due.

• 💵 September 30, 2025:

  • Due date for the first installment or full payment of your 2025 property tax bill.

• 💰 November 15, 2025:

  • Due date for the second installment if you chose the two-part payment option.

• 🚨 After November 15, 2025:

  • Penalties and interest begin on unpaid taxes.

🔑 Important 2025 Tax Deadlines (Estimated)

💡 Key Reminders for DeKalb County Property Owners

• 🖊️ File your appeal on time – the 45-day window is strictly enforced!

• 🏡 Apply for homestead exemptions by April 1 to get full benefits for the year.

• 📖 Review your notice carefully – check your property’s fair market value and assessed value.

• 💻 Pay online at dekalbtax.org or review payment options.

✨ By staying on top of these deadlines and using the right resources, you'll be better equipped to manage your property taxes in DeKalb County and avoid unnecessary penalties or overpayment.

📚 Resources

• 🔗 DeKalb County Tax Commissioner’s Office

• 🔗 Property Assessment Info

• 🔗 Appeal Process Guide

• 🔗 Homestead Exemption Application 

• 🔗 Georgia Department of Revenue: Property Tax