What Is Tax Roll
A tax roll is the official county or municipal record that lists every taxable property within a jurisdiction, assigns each a assessed value, and calculates the tax amount owed based on the local tax rate. The assessor's office maintains and publishes the tax roll annually, typically in spring or early summer, before tax bills are generated.
The tax roll is distinct from the assessment roll, though the terms are sometimes confused. The assessment roll contains the assessed values assigned by the assessor, while the tax roll takes those assessed values and applies the tax levy rate (expressed in mills per dollar of assessed value) to calculate actual taxes due. If your county's tax levy is 50 mills and your property is assessed at $200,000, your tax roll entry shows $10,000 in taxes owed.
Why It Matters for Your Assessment Appeal
The tax roll is your roadmap for understanding where your property stands and identifying errors. It's public record, and reviewing it carefully often reveals calculation mistakes, incorrect property characteristics, or assessed values that don't align with comparable sales in your area.
Many assessment errors only become visible when you compare your tax roll entry against similar properties. If your 2,500-square-foot home on a 0.5-acre lot is assessed at $350,000 while three comparable homes nearby are assessed at $280,000 to $295,000, that discrepancy signals a potential appeal case. The assessment ratio in your county (the relationship between assessed value and market value) should be consistent across similar properties, typically between 30% and 50% depending on state law.
How to Use the Tax Roll in Your Appeal
- Obtain a copy: Request the tax roll from your assessor's office or download it from the county website. Most jurisdictions make current and prior-year rolls available for public inspection.
- Verify accuracy: Check that your property description matches reality. Confirm the number of bedrooms, bathrooms, square footage, lot size, and condition code. A property listed as 3 bedrooms when it has 4 is grounds for adjustment.
- Identify comparable properties: Search the tax roll for properties with similar characteristics. Document their assessed values and the assessment ratio. Significant discrepancies strengthen your appeal to the board of review.
- Track prior years: Review tax rolls from the past 3 to 5 years. Unexplained jumps in assessed value year-over-year raise red flags and support arguments that the current assessment doesn't reflect market conditions.
- Prepare for board review: Bring tax roll data showing comparable properties to your board of review hearing. Most judges expect appraisal data and comparable sales, but also appreciate seeing how your property compares directly on the tax roll itself.
The Tax Roll and Assessment Calendar
Most states require assessors to publish preliminary tax rolls by June 1. That preliminary roll is your signal to act. You typically have 30 to 45 days from publication to file a written complaint with the assessor or board of review, depending on your state. Missing this deadline usually forecloses your right to appeal for that tax year. After the board of review meets (typically in June or July), the final tax roll is certified, and tax bills are issued in fall based on those final assessed values.
Common Questions
Can I appeal after the tax roll is final?
Most states allow appeals only during the open protest period, which runs from preliminary roll publication until roughly 45 days later. Once the final tax roll is certified, your window closes. Some jurisdictions allow post-certification appeals only in cases of clerical error or fraud, which have a higher burden of proof. File early and don't wait until the deadline.
What if the tax roll shows the wrong square footage or property class?
Errors in property description are the easiest appeals to win. If the tax roll lists your home as 2,200 square feet but it's actually 2,100 square feet, that's a clear factual error. Provide a survey, appraisal, or assessment from a recent home sale to correct it. The assessor often corrects these without a formal hearing once you submit documentation.
How does the assessment ratio on the tax roll affect my appeal?
Assessment ratios vary by state and county. If your county maintains a 35% assessment ratio (meaning assessed values are 35% of fair market value), an assessed value of $280,000 implies a market value of $800,000. If you can show comparable sales suggest your property's market value is closer to $650,000, you have a strong argument for a lower assessed value. Bring the tax roll comparables and market data together to the board of review.
Related Concepts
- Assessment Roll - the underlying assessed values before tax rate is applied
- Tax Levy - the rate applied to assessed values to calculate taxes owed