Appealing Property Taxes After Buying a Home: What New Owners Need to Know
TL;DR
If you just bought a home and the property taxes jumped, you can and should appeal if the new assessment exceeds your purchase price or what comparable homes have sold for. In some states, buying a home triggers a reassessment that can raise your taxes immediately. Your purchase price is strong evidence of market value. File your appeal before the deadline on your assessment notice, and bring your closing documents and comparable sales as evidence.
Why Property Taxes Often Spike After a Purchase
You budgeted carefully before buying your home. You checked the listing's estimated taxes. Then you got your first real tax bill, and it was hundreds or thousands more than expected. This is one of the most common complaints new homeowners have, and there are several reasons it happens.
Reassessment on Sale
Some states and counties reassess property values when ownership changes. If the previous owner held the home for many years, their assessed value may have been artificially low due to assessment caps, homestead exemptions, or infrequent reassessment. When you buy, the slate gets wiped and your home is reassessed at current market value.
States where purchases commonly trigger reassessment include California (Prop 13 resets to purchase price), Michigan (uncaps the taxable value), and several others. Check our guide on purchase price assessments to see your state's rules.
Loss of Previous Owner's Exemptions
The previous owner may have had exemptions (senior, veteran, disability) that reduced their taxes. Those exemptions do not transfer to you. You need to apply for your own exemptions, and if you do not qualify for the same ones, your taxes will be higher.
Supplemental Tax Bills
In some states (notably California), you receive a supplemental tax bill that covers the difference between the old and new assessed values for the portion of the year after your purchase. This is a one-time adjustment, not a recurring charge. See our supplemental tax guide for details.
When You Should Appeal as a New Owner
Not every post-purchase tax increase is wrong. But these situations warrant an appeal:
- Assessment exceeds your purchase price. Your purchase was an arm's-length transaction where a willing buyer and seller agreed on a price. That is the textbook definition of market value. If the assessor says your home is worth more than you paid, challenge it.
- Assessment exceeds comparable sales. Even if your purchase price supports the assessment, comparable homes may have sold for less since you bought. Market conditions change, and more recent data may support a lower value.
- Property record has errors. New owners should always check the property record card. Previous owners may not have caught (or cared about) errors that inflate the value.
- You bought at a premium. If you overpaid due to a bidding war, your purchase price may actually be above market value. Comparable sales can demonstrate this.
How to Appeal: Step by Step for New Owners
Step 1: Get Your Assessment Notice
After your purchase, you will receive an assessment notice showing your new property value. This may come a few months after closing. Read it carefully and note the appeal deadline.
Step 2: Compare the Assessment to Your Purchase Price
If the assessed value is higher than what you paid, you have a straightforward case. Your closing statement (HUD-1 or Closing Disclosure) documents the exact price. This is your primary piece of evidence.
Step 3: Research Comparable Sales
Even if your purchase price supports the assessed value, look for comparable homes that sold for less. This gives you a market-based argument beyond your own transaction.
Use the same process outlined in our comparable sales guide: find 3-5 similar homes within 1 mile that sold in the last 6-12 months.
Step 4: Check the Property Record
As a new owner, you have fresh eyes. Pull up your property record card and compare every detail to your actual property. If the home inspection you had before buying found any issues, those might support a condition-based argument for lower value.
Step 5: Apply for Exemptions
Before you file the appeal, make sure you have applied for every exemption you qualify for:
- Homestead exemption - Apply as soon as you move in. In some states, you must apply by a specific date. See how homestead exemptions work.
- Any other exemptions - Veteran, disability, or other applicable exemptions.
Exemptions reduce your taxable value independently of the appeal. Claim them regardless of whether you also appeal.
Step 6: File Your Appeal
File before the deadline shown on your assessment notice. Include:
- Your closing statement showing the purchase price
- Comparable sales data
- Any property record corrections
- Your proposed assessed value
For detailed filing instructions, see our DIY appeal guide.
Special Considerations for New Homeowners
The "I Just Bought It" Argument
Review boards generally view a recent arm's-length purchase price as strong evidence of market value. If you bought your home 3 months ago for $320,000 and the assessor says it is worth $360,000, the board will likely give your purchase price significant weight.
However, this argument weakens over time. A purchase price from 2 years ago is less relevant to current market value, especially in a rising market. If your purchase was recent (within the last 12 months), lead with it.
What If You Overpaid?
If you got caught in a bidding war and paid above asking price, the assessed value might actually be fair or even low relative to what you paid. In this case, comparable sales are more useful than your purchase price. Look for homes similar to yours that sold for less, especially in calmer market conditions.
New Construction
If you bought a newly built home, the assessment may reflect the full construction cost, which can be higher than market value if the market has softened or if the builder charged premium prices. New construction assessments are worth challenging if comparable resale homes are selling for less.
How to Handle Prorated Taxes From Closing
At closing, the seller typically pays their share of property taxes up to the closing date, and you pay from closing through the end of the tax year. This proration is based on the current year's tax bill, not the new assessment.
If the assessment changes after closing, your actual tax bill may differ from what was prorated. This is normal and does not give you grounds for appeal on its own, but it does mean your first year's taxes might be higher than what was estimated at closing.
For more on how proration works, see our proration guide.
State-Specific Issues for New Buyers
| State | What Happens at Purchase | What You Can Do |
|---|---|---|
| California | Reassessed to purchase price (Prop 13) | Appeal if supplemental bill seems too high |
| Michigan | Taxable value uncaps to SEV | Protest at March Board of Review |
| Texas | No automatic reassessment on sale | Protest if appraised value exceeds purchase price |
| Florida | Save Our Homes cap resets | Apply for homestead ASAP, appeal if over-assessed |
| Illinois | Varies by county | Appeal to Board of Review |
The Bottom Line for New Homeowners
Do not just accept your first property tax bill as final. New homeowners are in one of the best positions to appeal because they have a recent purchase price as evidence. Here is your action checklist:
- Apply for your homestead exemption immediately after closing
- Check for any other exemptions you qualify for
- Review your assessment notice when it arrives
- Compare the assessed value to your purchase price and comparable sales
- Check the property record for errors
- File an appeal if the numbers support it
Frequently Asked Questions
What should I know about appealing property taxes after buying a home: what new owners need to know?
If you just bought a home and the property taxes jumped, you can and should appeal if the new assessment exceeds your purchase price or what comparable homes have sold for. In some states, buying a home triggers a reassessment that can raise your taxes immediately. Your purchase price is strong evidence of market value.
Why Property Taxes Often Spike After a Purchase?
You budgeted carefully before buying your home. You checked the listing's estimated taxes. Then you got your first real tax bill, and it was hundreds or thousands more than expected.
When You Should Appeal as a New Owner?
Not every post-purchase tax increase is wrong. But these situations warrant an appeal:
How to Appeal: Step by Step for New Owners?
After your purchase, you will receive an assessment notice showing your new property value. This may come a few months after closing. Read it carefully and note the appeal deadline.
What should I know about special considerations for new homeowners?
Review boards generally view a recent arm's-length purchase price as strong evidence of market value. If you bought your home 3 months ago for $320,000 and the assessor says it is worth $360,000, the board will likely give your purchase price significant weight.
How to Handle Prorated Taxes From Closing?
At closing, the seller typically pays their share of property taxes up to the closing date, and you pay from closing through the end of the tax year. This proration is based on the current year's tax bill, not the new assessment.
Just Bought a Home? Check Your Assessment.
Our free quiz takes 2 minutes and compares your assessment to local sales data. If you are over-assessed, our $79 Evidence Packet gives you everything you need to file a successful appeal.