Kennesaw Property Taxes and Insurance: What Homeowners Pay in 2026
What are property taxes and homeowners insurance costs for Kennesaw, Georgia homeowners in 2026?
Kennesaw homeowners pay property taxes to both Cobb County and the City of Kennesaw. Using the 2025 millage rates — the most current adopted rates — a $400,000 home in Kennesaw carries an estimated property tax bill of $5,500–$6,500 per year before exemptions reduce that number. Homeowners insurance in Kennesaw currently runs $1,800–$2,400 annually, and rates are rising. Combined, most Kennesaw homeowners budget $650–$800 per month for taxes and insurance together.
- Kennesaw homeowners pay taxes to two authorities: Cobb County (30.13 mills in 2025) and the City of Kennesaw (approximately 12.14 mills).
- Georgia assesses property at 40% of fair market value — a $400,000 home has a $160,000 assessed value before exemptions.
- The Cobb County basic homestead exemption reduces your taxable value by $10,000 — apply by April 1 to qualify for that tax year.
- Homeowners insurance in Kennesaw averages $1,800–$2,400 per year; rates rose ~9% in 2025 and are projected to rise another 10% in 2026.
- Budget $650–$800 per month combined (taxes + insurance) for a $400,000 home.
One of the questions I hear most from buyers — especially those relocating from other states — is: "What will I actually pay in taxes and insurance every month in Kennesaw?"
It's a fair question. And it's one that gets glossed over in a lot of listing presentations and home search tools that only show you the purchase price.
The answer involves two separate property tax bills, a Georgia assessment formula that surprises most out-of-state buyers, and an insurance market that has been moving in one direction. Here's the full picture.
Kennesaw Property Taxes: How the Bill Is Calculated
Georgia doesn't assess property at full market value. The state uses 40% of your home's appraised fair market value as the assessed (taxable) value. That's the number your millage rate is applied to.
So if you buy a home in Kennesaw for $400,000:
- Fair market value: $400,000
- Assessed value (40%): $160,000
- That $160,000 — minus any exemptions — is what gets taxed.
One mill equals $1 per $1,000 of assessed value. Multiply your net assessed value by the total millage rate, divide by 1,000, and you have your annual tax bill.
The 2025 Millage Rate Breakdown for Kennesaw
Kennesaw city residents pay taxes to two authorities: Cobb County and the City of Kennesaw. The most recently adopted rates are from 2025. (2026 rates are set each July.)
Cobb County (2025):
| Taxing Category | Millage Rate |
|---|---|
| County School | 18.70 mills |
| County General | 8.46 mills |
| County Fire | 2.97 mills |
| County Bond | 0.00 mills |
| County Total | 30.13 mills |
City of Kennesaw (2025):
| Taxing Category | Millage Rate |
|---|---|
| City M&O | ~8.83 mills |
| City Bond | ~3.31 mills |
| City Total | ~12.14 mills |
Combined total for Kennesaw city residents: approximately 42.27 mills. Schools make up the largest piece — 18.70 of those mills belong to Cobb County Schools.
What Kennesaw Homeowners Actually Pay: Real Numbers
| Home Value | Est. Annual Tax | Est. Monthly Escrow |
|---|---|---|
| $350,000 | $4,800–$5,500 | ~$400–$460 |
| $400,000 | $5,500–$6,400 | ~$460–$535 |
| $500,000 | $7,000–$8,000 | ~$580–$665 |
These are estimates using 2025 millage rates and the standard Cobb County basic homestead exemption. Use the Cobb County tax estimator at cobbtax.gov for your specific parcel. Your assessment notice arrives in spring — if the assessed value looks off, see our guide to appealing your Cobb County property tax assessment.
Homestead Exemptions: What Kennesaw Homeowners Can Claim
If Kennesaw is your primary residence, you're leaving money on the table if you haven't filed. The deadline is April 1 of the tax year. File once and it carries forward automatically.
The Cobb County Basic Homestead
- $10,000 reduction on county general and county school assessed value
- $2,000 reduction on the state portion (Georgia's standard exemption)
- $4,000 reduction on county and school categories under the state basic exemption
On a $160,000 assessed value, the basic homestead reduces your taxable base by $10,000–$14,000 — saving roughly $300–$500 per year.
Additional Exemptions Worth Knowing
If you're 62 or older as of January 1, Cobb County offers a school tax exemption that removes the school millage from your county bill entirely — significant given that school taxes represent 18.70 of your 30.13 county mills.
A disability exemption of $22,000 in all taxing categories except the state is available for qualifying homeowners with annual net income under $12,000.
How to Apply
File at efiletax.cobbcounty.org. You'll need a Georgia driver's license showing the property address and vehicle registration showing Cobb County taxes paid. You must own and occupy the home as your primary residence as of January 1 of the tax year.
Homeowners Insurance in Kennesaw: What to Budget in 2026
Homeowners insurance in Kennesaw runs $1,800–$2,400 per year for a typical home — and that number is moving up. Georgia insurance rates rose roughly 9% in 2025, and projections point to another 10% increase in 2026.
Why Kennesaw Insurance Costs Are Rising
- Severe hail and wind. Metro Atlanta ranks among the most hail-active metros in the Southeast. Insurers are pricing that risk region-wide.
- Rising construction costs. Repair and replacement costs have gone up sharply. Insurers adjust premiums to reflect claims cost, not just frequency.
- Reinsurance market pressure. When reinsurance gets more expensive, those costs flow downstream to homeowners.
What Affects Your Premium Most
- Roof age and material. Carriers are shifting older roofs to actual cash value (ACV) coverage — significantly lower payouts at claim time. A roof over 15 years old can substantially increase your premium or limit options.
- Replacement cost, not purchase price. In Cobb County's current market, replacement runs $150–$250 per square foot.
- Wind/hail deductible. Many North Atlanta policies carry a separate 1%–2% wind/hail deductible on top of the standard deductible.
- Claims history. Your personal history and the property's CLUE report both affect your rate.
| Home Value | Est. Annual Premium | Monthly |
|---|---|---|
| $300,000 | $1,600–$2,000 | $133–$167 |
| $400,000 | $1,900–$2,500 | $158–$208 |
| $500,000 | $2,400–$3,200 | $200–$267 |
For a full picture of what owning a home in Cobb County costs beyond the mortgage, explore community guides for Marietta, Acworth, and Kennesaw.
Frequently Asked Questions
Kennesaw homeowners pay both Cobb County and city taxes. The 2025 combined millage rate is approximately 42 mills — county at 30.13 mills and city at roughly 12.14 mills. Georgia assesses property at 40% of fair market value, so a $400,000 home has a $160,000 taxable base before exemptions. For the most precise estimate on your property, use the Cobb County tax estimator at cobbtax.gov or visit masoudpour.com for local market context.
File for the Cobb County basic homestead exemption by April 1 — it reduces your county taxable value by $10,000 and saves several hundred dollars per year. If you're 62 or older, the county school tax exemption eliminates the school portion of your county bill. You can also appeal your Cobb County assessment through the Board of Tax Assessors each spring.
Most Kennesaw homeowners pay between $1,800 and $2,400 per year for homeowners insurance on a standard home. Rates vary based on home size, roof age, deductible, and carrier. With Georgia insurance rates rising 9–10% annually, shopping your coverage each renewal cycle is worth the effort. For buyers under contract, your lender will require proof of coverage before closing — factor this into your monthly budget from day one.
Yes — city of Kennesaw residents pay both county taxes and a separate city tax bill (approximately 12.14 mills), while homeowners in unincorporated Cobb County pay only the county rate. The difference on a $400,000 home works out to roughly $1,700–$2,000 more per year. Buyers considering homes in Marietta or Acworth should check which taxing jurisdiction applies to each parcel.
Cobb County property tax bills are issued in late summer and are due by October 15 each year. If you have a mortgage, your lender typically collects monthly escrow payments and pays the bill on your behalf. Late payments accrue interest at 1% per month. For a broader look at how taxes affect your bottom line when selling, see our net proceeds guide for Kennesaw sellers.
Property taxes and insurance don't show up in a Zillow listing. But they show up every month in your bank account — and for most Kennesaw homeowners, that combined number lands between $650 and $800 per month on a $400,000 home.
If you're buying or selling in Kennesaw, I can walk you through exactly what to budget for your specific home and price point. Schedule a 15-minute consultation and we'll go through the real numbers together.
