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Updated 2025 Tax Year

Bibb County
Property Tax Guide

Everything you need to know about property taxes in Bibb County, GA. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
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Quick Facts
Tax Rate
9.575 mills base county rate (varies by district with municipal and school overlays)
Exemptions
4+ Available
Section 1

How Property Tax Works

Property taxes in Bibb County, Georgia serve as the primary funding source for essential local services including public schools, county government operations, emergency services, and infrastructure maintenance. The county operates on a millage-based system where one mill equals $1 for every $1,000 of assessed value. Property assessments are conducted annually by the Bibb County Board of Assessors, with properties typically assessed at 40% of fair market value for residential properties.

The effective tax rate in Bibb County varies significantly by location within the county due to special taxing districts, municipal boundaries, and school district overlays. For 2025, the base county millage rate is set at 9.575 mills, representing a reduction from previous years. However, total tax bills will also include municipal taxes (if applicable), school district taxes, and any special district assessments, which can bring the combined millage rate substantially higher depending on your property's specific location.

Your actual tax rate depends on which taxing jurisdictions your property falls within, as the City of Macon, various school districts, and special service districts each levy additional taxes on top of the base county rate. Property owners should verify their specific tax districts to understand their complete tax obligation.

Section 2

What Makes Up Your Tax Bill

ComponentRate (Mills)Description
Bibb County Base9.575County operations, services, debt service
School DistrictVariesBibb County School District or other applicable districts
MunicipalVariesCity of Macon or other municipalities (if applicable)
Special DistrictsVariesFire districts, development authorities, other local services

Rates shown are for Levy Year 2025. One mill = $1 per $1,000 of assessed value.

Important Note: The combined millage rate varies significantly by location within Bibb County. Properties within Macon city limits face additional municipal taxes, while rural areas may have different school district rates or special fire district assessments. Contact the Bibb County Tax Assessor's Office at (478) 621-6520 to determine the exact millage rate for your specific property location and applicable taxing districts.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Bibb County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Bibb County are additional property tax assessments issued when there are changes in property ownership, completion of new construction, or additions/improvements that increase a property's assessed value during the tax year. These taxes cover the difference between what was originally billed and what should have been billed based on the property's current status.

Common triggers for supplemental taxes include: new construction completion, major renovations or additions, changes in property use classification, and corrections to assessment errors. The supplemental tax is calculated by taking the difference between the new assessed value and the original assessed value, then applying the current millage rate for the remaining months of the tax year.

Example: If a $50,000 home addition is completed in July and the property is in an area with a 25-mill total rate, the supplemental tax would be: ($50,000 × 40% assessment ratio × 0.025 rate × 6 months remaining ÷ 12 months) = $250. Supplemental tax bills are typically mailed within 60-90 days of the assessment change and become due 30 days from the bill date.

Example Calculation

Example 1: $300,000 Home (25 mills total rate)

  • Market Value: $300,000
  • Assessed Value (40%): $120,000
  • Less: Standard Homestead Exemption: -$2,000
  • Net Taxable Value: $118,000
  • Annual Tax (25 mills): $2,950
  • Monthly Escrow: $246

Example 2: $600,000 Home (25 mills total rate)

  • Market Value: $600,000
  • Assessed Value (40%): $240,000
  • Less: Standard Homestead Exemption: -$2,000
  • Net Taxable Value: $238,000
  • Annual Tax (25 mills): $5,950
  • Monthly Escrow: $496

Example 3: $1,000,000 Home (25 mills total rate)

  • Market Value: $1,000,000
  • Assessed Value (40%): $400,000
  • Less: Standard Homestead Exemption: -$2,000
  • Net Taxable Value: $398,000
  • Annual Tax (25 mills): $9,950
  • Monthly Escrow: $829

Note: These examples use a representative 25-mill combined rate. Actual rates vary by location within Bibb County. The Standard Homestead Exemption requires application and reduces assessed value by $2,000 for county and school taxes. Additional exemptions may be available for seniors, disabled persons, or veterans but require separate applications.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Bibb County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects monthly escrow payments as part of your mortgage payment, typically 1/12th of your estimated annual tax bill. The lender then pays your property taxes directly to Bibb County when taxes become due.

Bibb County property taxes are billed annually with tax bills mailed by September 15th each year for the current tax year. Taxes become due on December 31st, though the county offers quarterly payment options with due dates of March 31st, June 30th, September 30th, and December 31st. Lenders typically pay the full annual amount by the December 31st deadline to avoid penalties.

Property owners should verify that their lender has current tax information, especially after assessment changes, new construction, or supplemental tax bills. If your escrow account shows a shortage due to increased taxes, lenders will typically increase your monthly payment and may require a lump sum to cover the shortage. You can request an escrow analysis from your lender annually to ensure adequate funds are being collected.

How HonestCasa Helps
  • Understand whether your escrow is set correctly
  • See how rising taxes will change your monthly payment
  • Plan ahead instead of being surprised by "shortage" letters
Section 6

Frequently Asked Questions

Q: When are Bibb County property taxes due for tax year 2025? A: Property tax bills are mailed by September 15th and are due December 31st, 2025. You may also pay quarterly on March 31st, June 30th, September 30th, and December 31st.

Q: What homestead tax credits are available and do they require application? A: The Standard Homestead Exemption provides a $2,000 reduction in assessed value for county and school taxes. This requires application by April 1st and must be filed with the Bibb County Board of Assessors. Additional exemptions may be available for seniors, disabled persons, and veterans but require separate applications.

Q: Does the homestead exemption cap my assessment increases? A: Georgia's standard homestead exemption does not cap assessment increases - it provides a flat $2,000 reduction in assessed value. However, some municipalities may offer additional homestead credits that limit annual assessment growth. Check with the Bibb County Assessor's office for all available programs.

Q: When does the county reassess properties and how can I appeal? A: Bibb County conducts annual assessments with new values typically established by April 1st. Property owners have 45 days from the postmark date of their tax notice to file an appeal with the Bibb County Board of Assessors.

Q: What are the penalties for late property tax payments? A: Interest accrues on unpaid taxes at a rate set by state law (typically around 1% per month). Properties with delinquent taxes may eventually face tax lien sales or foreclosure proceedings.

Q: Can I pay my property taxes online? A: Yes, Bibb County offers online property tax payments through their website. Contact the Tax Commissioner's office at (478) 621-6330 for online payment options and accepted payment methods.

Q: Why might my tax bill be different from my neighbor's on a similar home? A: Tax bills can vary due to different taxing districts (municipal boundaries, school districts, fire districts), different assessment values, and different exemptions applied. Special district taxes can significantly impact total tax bills.

Q: Who do I contact about assessment values versus tax collection? A: Contact the Bibb County Board of Assessors at (478) 621-6520 for questions about property assessments and exemptions. Contact the Tax Commissioner at (478) 621-6330 for questions about tax bills, payments, and collection matters.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
Property Tax Millage Rates | Department of Revenuedor.georgia.gov
02
County
Macon-Bibb County Tax|Property/Garbagemaconbibbtax.us
03
County
Macon-Bibb Countymaconbibbtax.us
04
County
County Property Tax Facts Bibb | Department of Revenuedor.georgia.gov
05
County
Macon-Bibb County Tax|FAQmaconbibbtax.us
06
Application for Homestead Exemptionmaconbibbtax.us
07
Tax Doc
Property Tax Homestead Exemptions - Department of Revenuedor.georgia.gov
08
Tax Doc
Pay Property Tax Online - Department of Revenue - Georgia.govdor.georgia.gov
09
Tax Doc
Pay Property Taxesgeorgia.gov
10
County
BIBB COUNTY, GEORGIA COMPREHENSIVE ANNUAL ...maconbibb.us
All sources verified as of 2025 Tax Year

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