What Is Abatement
Abatement is a temporary reduction in your property tax bill granted by a local assessing authority or board of review, typically lasting one to three years. Unlike a permanent exemption, abatement addresses a specific year's overvaluation and does not carry forward automatically. You must reapply annually or request renewal, making it a time-limited relief tool rather than a permanent fix.
When Abatement Applies
Abatement is most effective when your assessed value exceeds the market value of your property. This happens frequently when:
- The assessor used outdated sales data or failed to account for recent market downturns
- Your property has physical defects, code violations, or deferred maintenance that reduce its marketability
- The assessment ratio in your jurisdiction is disproportionately high compared to recent comparable sales
- Your property is newly constructed or substantially renovated and was assessed before completion
In Massachusetts, for example, assessment ratios above 100% (meaning assessed value exceeds market value) commonly trigger successful abatement appeals. New Jersey assessors must achieve a coefficient of variation below 15% across residential properties, and deviations from this standard support abatement claims.
Building Your Abatement Case
The board of review evaluates abatement requests using three primary appraisal methods. You should prepare evidence supporting at least one approach:
- Sales comparison approach: Document 3-5 comparable properties sold within 12 months in your neighborhood with similar size, condition, and features. Adjust for differences in square footage, lot size, and upgrades. If comparable sales average $275,000 but your home was assessed at $310,000, the $35,000 gap supports your abatement petition.
- Cost approach: Calculate replacement cost of building and land value separately. This works well for newer construction or unique properties where comparable sales are scarce.
- Income approach: For commercial or rental properties, demonstrate that the property's actual rental income cannot support the assessed value at typical market cap rates (typically 5-7%).
The Filing and Hearing Process
Deadlines vary by state. Most jurisdictions require abatement applications within 45 to 90 days of assessment notice. Some states like Connecticut and Rhode Island observe a March 1 deadline for residential properties assessed January 1.
File your abatement application or petition with the assessor or board of review, depending on your jurisdiction's structure. Include:
- Your property address, account number, and current assessed value
- Comparable sales analysis with photos, MLS data, and adjustment justifications
- Property condition report noting deferred maintenance or functional obsolescence
- Recent appraisal if you obtained one professionally
- Photos documenting any property defects affecting value
If the assessor denies your application, request a formal board of review hearing. Present your comparable sales evidence clearly, focusing on properties within one-quarter mile when possible. Assessors must respond to your evidence; they cannot simply assert their original value is correct without supporting data.
Common Questions
- Does abatement reduce my tax bill permanently?
- No. Abatement typically covers one fiscal year only. After that period, your property reverts to the original assessment unless you file a new abatement petition. If your actual value has improved, expect a higher assessment in subsequent years. Consider a Tax Freeze if your jurisdiction offers one, which locks in assessed values for eligible homeowners.
- What documentation do I need to prove my property is overassessed?
- Comparable sales evidence is strongest. Gather MLS listing sheets showing sale prices, closing dates, and property details for properties that sold within 12 months. If your market declined 8-12% year-over-year, provide documentation of that decline. Professional appraisals carry weight but cost $300-600; comparable sales documentation you compile yourself is free and often persuasive when prepared carefully.
- If I win an abatement, do I get money back?
- Yes. Most jurisdictions issue a refund check or credit against future tax bills for the abated amount. If your assessment was $300,000 and abated to $265,000, you receive a refund for taxes paid on that $35,000 difference at your local tax rate. This typically arrives 4-8 weeks after the board of review approves your petition.
Related Concepts
- Tax Freeze - A permanent cap on assessed value for eligible homeowners, offering longer-term relief than annual abatement
- Exemption - A permanent reduction in assessed value for specific property classes like senior housing or agricultural land, not requiring annual reapplication