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Updated 2025 Tax Year

Mobile County
Property Tax Guide

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

8 Official Sources
8 min read
Quick Facts
Tax Rate
0.44% average effective rate, varies by special taxing districts (school, fire, municipal improvement)
Exemptions
5+ Available
Section 1

How Property Tax Works

Mobile County's property tax system provides essential funding for local government services, including education, public safety, infrastructure, and county operations. Property owners in Mobile County pay an effective tax rate that varies by location within the county, with the average effective rate being approximately 0.44% of assessed value. However, actual rates can differ significantly depending on which special taxing districts your property is located in, such as school districts, fire districts, or municipal improvement districts.

The county assesses properties based on current use and market value, with assessments typically updated every few years. Property taxes in Mobile County are administered by the Revenue Commissioner's office, which handles both assessment and collection duties. It's important to understand that your final tax bill depends not only on your property's assessed value but also on any tax credits you may qualify for and successfully apply for, as most tax relief programs require active application and are not automatically applied to your account.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County General Fund0.65 millsBasic county operations and services
County Schools15.0 millsMobile County Public School System
State Property Tax6.5 millsAlabama state property tax
Special DistrictsVariesFire districts, drainage, municipal bonds
Municipal TaxesVariesCity taxes (if within city limits)

Note: Rates shown are for FY 2024-2025 levy year and are expressed in mills (1 mill = $1 per $1,000 of assessed value). Total effective rates typically range from 0.40% to 0.50% depending on your specific location and applicable special taxing districts. Properties within city limits may have additional municipal taxes, while rural properties may have different fire district assessments.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Mobile 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 Mobile County represent additional tax obligations that arise during the tax year due to changes in property ownership or improvements. The most common triggers include the sale or transfer of property to a new owner, completion of new construction, additions to existing structures, or removal of temporary exemptions. When these events occur, the Revenue Commissioner's office calculates the difference between the previous assessment and the new assessed value, then applies the current tax rate to determine the supplemental tax owed.

For example, if you purchase a home in March that was previously assessed at $200,000 but now has a market value of $350,000, a supplemental tax bill would be issued for the increased assessment prorated from the date of ownership change through the end of the tax year. The supplemental tax would be calculated on the $150,000 increase in assessed value, multiplied by the applicable tax rate, and prorated for the remaining months of the fiscal year.

Example Calculation

Example 1: $300,000 Home

  • Assessed Value: $300,000
  • Homestead Credit Applied: -$4,000 (requires application)
  • Net Taxable Value: $296,000
  • Tax Rate: 0.44%
  • Annual Tax: $1,302
  • Monthly Escrow: $109

Example 2: $600,000 Home

  • Assessed Value: $600,000
  • Homestead Credit Applied: -$4,000 (requires application)
  • Senior Citizen Credit: -$2,000 (if applicable, requires application)
  • Net Taxable Value: $594,000
  • Tax Rate: 0.46% (higher due to special district)
  • Annual Tax: $2,732
  • Monthly Escrow: $228

Example 3: $1,000,000 Home

  • Assessed Value: $1,000,000
  • Homestead Credit Applied: -$4,000 (requires application)
  • Net Taxable Value: $996,000
  • Tax Rate: 0.48% (includes municipal taxes)
  • Annual Tax: $4,781
  • Monthly Escrow: $398

Note: All tax credits shown require formal application and approval. Rates vary by special taxing districts within Mobile County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Mobile County require borrowers to maintain an escrow account for property taxes, collecting monthly payments along with principal and interest to ensure timely tax payment. Lenders typically collect 1/12th of your annual property tax bill each month, plus an additional cushion as allowed by federal law. The escrow account is analyzed annually, and you'll receive an adjustment notice if your monthly payment needs to change due to tax rate changes or assessment updates.

Property taxes in Mobile County are typically due in two installments during the fiscal year, and your lender will make these payments on your behalf from your escrow account. You can verify that payments have been made and view your tax records online at https://www.mobilecountyal.gov/government/departments/revenue-commissioner/property-tax/. If you pay your own taxes without escrow, it's crucial to stay current with payment deadlines to avoid penalties and potential tax lien issues. Always verify your tax amounts independently, as escrow shortages can occur if assessments increase significantly or if tax credits expire without renewal.

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 property taxes due in Mobile County for FY 2024-2025? A: Property taxes are typically due in two installments: the first half by October 1st and the second half by March 31st. Late payments incur penalties and interest charges.

Q: What tax credits are available and do they require application? A: Mobile County offers several tax credits including Homestead Credit (up to $4,000 off your tax bill), Senior Citizen Credit, Disabled Person Credit, and Veteran Credits. ALL tax credits require formal application and are not automatically applied - you must file paperwork with the Revenue Commissioner's office.

Q: How does the Homestead Credit work? A: The Homestead Credit provides up to $4,000 in tax bill reduction for owner-occupied primary residences. Additionally, it caps annual assessment increases to protect against rapid property value growth. You must apply for this credit - it's not automatic and must be renewed if you move or change ownership.

Q: When do I need to apply for tax credits? A: Most tax credit applications must be filed by December 31st of the tax year to be effective for that year's taxes. Contact the Revenue Commissioner's office for specific deadlines and required documentation.

Q: How often are properties reassessed in Mobile County? A: Mobile County conducts property reassessments periodically, typically every few years. You'll receive notice of any assessment changes and have the right to appeal if you believe the assessment is incorrect.

Q: What happens if I pay my property taxes late? A: Late payments incur penalty fees and interest charges. Continued non-payment can result in tax liens and ultimately tax sale proceedings.

Q: Can I pay my property taxes online? A: Yes, Mobile County offers online payment options through their official website. Visit https://www.mobilecountyal.gov/government/departments/revenue-commissioner/ for secure payment portals and account information.

Q: Why did my tax bill increase when tax rates stayed the same? A: Tax bills can increase due to rising property assessments, expiration of tax credits, new special district assessments, or loss of exemption status. Remember that most tax credits require annual renewal or reapplication.

Q: How do special taxing districts affect my tax rate? A: Your property's location determines which special districts apply, such as school districts, fire districts, or municipal improvement zones. These can add additional mills to your base tax rate, causing variation across the county.

Q: What documentation do I need to apply for tax credits? A: Requirements vary by credit type, but typically include proof of ownership, occupancy verification, age verification for senior credits, disability documentation, or military service records for veteran credits. Contact the Revenue Commissioner's office for specific requirements.

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