Cobb County Property Search, GIS Map, Assessment & 2026 Tax Record Help
If you searched for the Cobb County property appraiser, the agency you need in Georgia is the Cobb County Board of Tax Assessors. It values taxable property, maintains assessment records and issues the Annual Notice of Assessment.
Cobb County divides related property tasks between several offices. The Tax Assessor handles value and assessment appeals; the Tax Commissioner handles homestead exemptions, tax bills and payments; Cobb GIS provides parcel mapping; and the Superior Court Clerk maintains recorded deeds and liens.
This guide is built around those actual local workflows, including Cobb’s June 5, 2026 assessment notices, July 20 appeal deadline for the standard 2026 notice cycle, current millage rates, floating homestead protection and October 15 tax-payment deadline.
Cobb County Property Appraiser, Tax Assessor or Tax Commissioner?
Cobb does not have an office formally named “Property Appraiser.” The local equivalent for appraisal and assessment work is the Cobb County Board of Tax Assessors.
| Your Task | Correct Office | Best Next Step |
|---|---|---|
| Search property or owner | Board of Tax Assessors | Open the official Assessor website |
| Check fair market or assessed value | Board of Tax Assessors | Find the parcel and review its current assessment record. |
| Appeal an assessment | Board of Tax Assessors | File within the deadline printed on the Annual Notice of Assessment. |
| Apply for homestead exemption | Tax Commissioner | Use the official exemption filing process. |
| Estimate 2026 county taxes | Tax Commissioner | Open the 2026 Tax Estimator |
| Pay property taxes | Tax Commissioner | Open Cobb Tax |
| Find a deed or lien | Superior Court Clerk | Search Real Estate Records |
Official Property Search, GIS, Tax Estimator, Homestead & Records Links
Tax Assessor Property Search
The Assessor website provides the official route to current Cobb County real-property assessment records.
Open Cobb Tax AssessorAfter opening this link
- Select Property Search from the quick links.
- Search using the available parcel, owner or address information.
- Open the matching property.
- Confirm the parcel ID and situs address before relying on its values.
Cobb GIS Property Search
The county GIS property tool can route an address search to property records and map-based information.
Open Cobb GIS Property SearchAfter opening this link
- Enter the house number and street name.
- Do not add an apartment number, city, state or ZIP if the tool rejects the search.
- Open the matching property result.
- Compare the result with the Assessor parcel ID.
2026 Property Tax Estimator
Search by parcel ID, property address or owner name to generate a county tax estimate.
Open 2026 Tax EstimatorAfter opening this link
- Enter the parcel ID, property address or owner.
- Select the correct result.
- Review fair market value, assessed value and exemption status.
- Remember that the estimator does not include separate city taxes.
Homestead Exemptions
Homestead, senior, disability and related exemptions are administered through the Cobb County Tax Commissioner.
Open Cobb Tax CommissionerAfter opening this link
- Choose the Property Tax or Homestead section.
- Review the exemption that applies to your household.
- Check the current tax-year deadline.
- Submit supporting residency or age documentation as instructed.
Assessment Appeal
Cobb accepts written assessment appeals after an Annual Notice of Assessment is issued.
Open Assessor FormsAfter opening this link
- Find the current Appeal Form.
- Check the deadline printed on your assessment notice.
- Include the parcel ID and property address.
- Submit before the deadline and retain proof of filing.
Deeds & Real Estate Records
The Cobb County Superior Court Clerk maintains the official real-estate document index.
Search Real Estate RecordsAfter opening this link
- Select the real-estate records search.
- Search by grantor/grantee, book and page, instrument or other supported field.
- Confirm the document date and property description.
- Use the Clerk for official copy or recording questions.
How to Search Cobb County Property Records
The Assessor’s parcel record is the best starting point for value research. Keep the parcel ID once you find the property because Cobb uses it across assessment, tax and GIS workflows.
Open the official Board of Tax Assessors site
Use the county assessment website rather than copied property-directory data.
Open Official Assessor SiteSelect Property Search
Use the site’s Property Search quick link to reach the current parcel database.
Use the strongest identifier
Parcel ID is normally the most precise. Address and owner searches are useful when the parcel number is unknown.
Confirm the property details
Match the situs address, owner, parcel number and property characteristics before comparing values or sales.
Save the parcel ID
The parcel ID is useful when opening the 2026 tax estimator, checking a tax bill or discussing an appeal with county staff.
Cobb County GIS Map: Parcel, Land-Lot & Location Research
Cobb County maintains public GIS tools in addition to the Tax Assessor database. GIS is especially useful when an address alone does not explain the property’s location, nearby parcels or jurisdiction context.
Useful Reasons to Open GIS
- Confirm general parcel location
- Research neighboring parcels
- Check available parcel-map layers
- Review land-lot context
- Research subdivision geography
- Compare location with tax-assessment records
GIS Is Not Final Proof Of
- Surveyed boundary location
- Legal access or easements
- Clear title
- Buildability
- Permit approval
- A legal zoning interpretation
After opening this link
- Search the confirmed parcel or address.
- Zoom to the correct property.
- Use only the layers relevant to your research.
- Confirm survey, zoning or title questions through the responsible professional or agency.
Fair Market Value, Assessed Value and Net Assessment in Cobb County
Georgia generally assesses real property at 40% of fair market value. Cobb’s tax amount is then affected by exemptions and the millage rates applying to the parcel’s tax district.
Fair Market Value
The value placed on the property by the Board of Tax Assessors for ad valorem tax purposes.
Assessed Value
Generally 40% of the property’s fair market value in Georgia.
Net Assessment
The assessed value after exemptions applicable to a taxing category are deducted.
Cobb’s tax formula can be summarized as: ((fair market value × 40%) − applicable exemptions) × millage rate. Different portions of the bill can use different exemption amounts.
Cobb County 2026 Annual Notice of Assessment
The Cobb County Board of Tax Assessors lists June 5, 2026 as the mailing date for 2026 commercial, residential and personal-property Annual Notices of Assessment.
The 2026 notice uses a new state-mandated format. Cobb explains that the old tax-estimate presentation was replaced with estimated tax-savings information based on approved exemptions, credits and preferential assessments.
How to Appeal a Cobb County Property Assessment
An appeal must be in writing and must be received or carry a qualifying U.S. Postal Service postmark within the 45-day appeal period shown on the assessment notice.
Check the record for factual errors
Review property characteristics, ownership, land information, construction details and any relevant exemptions.
Choose an appeal ground
Cobb identifies value, uniformity and taxability among valid grounds for an assessment appeal.
Prepare supporting information
Comparable sales, photographs, an appraisal, property-condition evidence and factual record corrections can help explain the requested value.
File before the notice deadline
Cobb permits appeals in response to an Annual Notice of Assessment. Follow the current online, mail or hand-delivery instructions.
Track the Board’s decision
If the Assessor does not resolve the appeal, it may proceed to the Board of Equalization or another elected appeal route depending on the original filing.
After opening this link
- Find the questions about appealing a valuation.
- Review acceptable appeal grounds.
- Confirm the written filing requirements.
- Follow the current Appeal Form or online filing route.
Cobb County Homestead Exemption: Basic, Floating & 2026 Filing
The Cobb County Tax Commissioner administers homestead and related exemptions. The basic homestead exemption is generally available for a home the applicant owns and occupies as the legal residence.
Basic Homestead
Cobb materials list a $10,000 basic homestead exemption for applicable county and school tax categories.
Floating Homestead
Cobb’s local floating exemption protects the County General Fund portion from increases caused solely by reassessment when the qualifying rules are met.
2026 Filing Timing
The 2026 Tax Commissioner estimator instructs homeowners to apply for or request removal of a homestead exemption before the appeal deadline shown on the Annual Notice of Assessment.
For 2026, Cobb kept the County General Fund M&O millage rate unchanged. County officials stated that eligible homeowners with the floating homestead exemption would see no increase in the County M&O portion caused solely by higher reassessed value, assuming there were no property changes affecting taxable value.
After opening this link
- Open Property Tax and Homestead information.
- Confirm the tax year currently accepting applications.
- Choose the correct exemption type.
- Upload or provide the requested residency documentation.
- Save the submission confirmation.
Age 62 School Tax Exemption and Other Cobb County Benefits
Age 62 School Tax Exemption
Cobb County homeowners who satisfy the age requirement may qualify for exemption from county school taxes under the applicable local exemption rules.
Age 65 $4,000 Exemption
Cobb materials describe an age-65 $4,000 exemption with a $10,000 net-income limitation, subject to the detailed income exclusions and qualification rules.
Disability Exemption
Qualifying disabled homeowners may be eligible for additional relief subject to disability and income requirements.
Do not assume an existing basic homestead automatically adds a senior exemption when you reach the qualifying age. Review the Tax Commissioner’s current instructions and apply when required.
Cobb County 2026 Millage Rates, Tax Bills & October 15 Deadline
Cobb County approved its 2026 county millage rates in July. The County General Fund M&O rate remains 8.46 mills and the County Fire rate is 2.97 mills. Cobb County Schools retained a 18.70-mill General Fund rate for 2026.
For a typical unincorporated parcel subject to the County General, Fire and Cobb County School rates, those three components total 30.13 mills before any applicable special district adjustments or exemptions.
2026 property tax bills
Cobb County announced on August 19, 2026 that the 2026 property-tax bills had been issued after state review and approval of the county tax digest. Payments are due October 15, 2026.
The Tax Commissioner reported approximately 270,574 bills totaling about $1.36 billion for the 2026 billing cycle.
View or Pay Cobb Property TaxAfter opening this link
- Open the Property Tax section.
- Search the correct parcel or tax account.
- Confirm tax year 2026.
- Review balance, due date and payment status.
- Use the official Tax Commissioner payment method.
Cobb County Deeds, Liens, Plats & Real Estate Records
The owner displayed on an Assessor record is useful for assessment research, but it is not a substitute for reviewing the recorded deed when legal ownership matters.
Use the Tax Assessor For
- Tax-roll ownership
- Parcel ID
- Fair market value
- Assessed value
- Property characteristics
- Assessment appeal information
Use the Superior Court Clerk For
- Warranty deeds
- Quitclaim deeds
- Security deeds
- Liens
- Recorded plats
- Condominium and other real-estate filings
The Cobb Superior Court Clerk’s Real Estate Division is located at 10 E. Park Square, Building C, Marietta. The office lists general real-estate information at 770-528-1360 and deed-room assistance at 770-528-1328.
Open Cobb Real Estate DivisionAfter opening this link
- Choose Records Search or the relevant document section.
- Search using party name, book/page, instrument or land description.
- Verify the recording information.
- Contact the deed room if an online document is unavailable.
Why the Same Cobb County Value Can Produce a Different Tax Bill
Unincorporated Cobb
County General, Cobb Schools and Fire are major components, while special districts can add another levy for some parcels.
Marietta
Marietta has separate municipal and school-tax structures, so do not use an unincorporated Cobb estimate for a Marietta parcel.
Acworth, Austell, Kennesaw, Powder Springs & Smyrna
Municipal taxes can be billed separately. Confirm city limits and city millage before estimating total carrying costs.
Mableton
Confirm current tax-district and municipal information for a Mableton parcel rather than relying only on its postal city.
Cumberland Area
Some commercial and mixed-use parcels can fall within community improvement or special-service districts that affect the tax calculation.
Recent Purchases
Verify exemption status after closing. A seller’s homestead or floating exemption history should not be assumed to continue unchanged for the buyer.
Cobb County Board of Tax Assessors Address, Phone & Hours
| Detail | Current Information |
|---|---|
| Office | Cobb County Board of Tax Assessors |
| Director / Chief Appraiser | Christine Stinchcomb |
| Address | 736 Whitlock Avenue, Suite 200, Marietta, GA 30064 |
| Phone | 770-528-3100 |
| Fax | 770-528-3118 |
| cobbtaxassessor@cobbcounty.org | |
| Hours | Monday–Friday, 8:00 AM–5:00 PM |
| Mailing Address | P.O. Box 649, Marietta, GA 30061-0649 |
Map: Cobb County Board of Tax Assessors
Cobb County Board of Tax Assessors
736 Whitlock Avenue, Suite 200
Marietta, GA 30064
Cobb County Property Appraiser FAQs
1. Does Cobb County Georgia have a Property Appraiser?
The official valuation agency is the Cobb County Board of Tax Assessors. “Cobb County property appraiser” is a common search phrase, but Georgia generally uses Tax Assessor, Board of Tax Assessors and Chief Appraiser terminology.
2. How do I search Cobb County property records?
Open the Cobb County Board of Tax Assessors website and select Property Search. Search using the supported parcel, owner or address information, then confirm the parcel ID and situs address before relying on the values.
3. What is the assessment rate in Cobb County?
Georgia real property is generally assessed at 40% of fair market value for ad valorem property-tax purposes. Applicable exemptions are then deducted from the assessed value according to the taxing category.
4. When were Cobb County 2026 assessment notices mailed?
The Cobb County Board of Tax Assessors lists June 5, 2026 as the mailing date for 2026 commercial, residential and personal-property Annual Notices of Assessment.
5. What was the 2026 Cobb County assessment appeal deadline?
The standard 45-day window from the June 5, 2026 notice date ended July 20, 2026. A property owner should always use the deadline printed on the actual notice because a corrected or differently dated notice can have a different deadline.
6. Who handles Cobb County homestead exemptions?
The Cobb County Tax Commissioner administers homestead and related property-tax exemptions. The Tax Assessor determines property value but directs homestead-exemption questions to the Tax Commissioner.
7. What is Cobb County’s floating homestead exemption?
Cobb’s floating homestead exemption helps prevent the County General Fund taxable value on a qualifying primary residence from increasing solely because of reassessment. It does not freeze every part of the property-tax bill.
8. What are Cobb County’s main 2026 millage rates?
The 2026 County General Fund rate is 8.46 mills, the County Fire rate is 2.97 mills and Cobb County Schools retained an 18.70-mill General Fund rate. City or special-district taxes can add other rates depending on the parcel.
9. When are Cobb County 2026 property taxes due?
The Cobb County Tax Commissioner announced that 2026 property-tax bills are due October 15, 2026. Use CobbTax.gov to confirm the current balance and payment status for a specific parcel.
10. Where is the Cobb County Tax Assessor office?
The Cobb County Board of Tax Assessors is at 736 Whitlock Avenue, Suite 200, Marietta, GA 30064. The main phone number is 770-528-3100, and regular office hours are Monday through Friday from 8:00 AM to 5:00 PM.
Official Sources Checked for This Cobb County Guide
This article was researched against current primary government and official agency resources, including:
- Cobb County Board of Tax Assessors
- Cobb County Tax Assessor FAQs
- Cobb County Assessor Forms
- 2026 Taxpayer Return Information
- Cobb County GIS Property Search
- 2026 Cobb County Property Tax Estimator
- Cobb County Tax Commissioner
- Cobb County 2026 Millage Information
- Cobb County Schools 2026 Millage Information
- Cobb County Superior Court Clerk Real Estate Division
Last factual review: September 11, 2026. Assessment records, exemptions, appeal deadlines, millage rates, tax balances, filing procedures and office information can change. Verify property-specific information with the responsible Cobb County office before acting.