June Property Tax Deadlines by State: What's Due This Month
TL;DR
June brings major appeal deadlines in Colorado (June 1), Indiana (June 15 informal), Tennessee (June 15), Idaho (fourth Monday), Montana (first Monday), and Nebraska (June 30). Assessment notices arrive in Missouri, Montana, Nebraska, and Idaho. Minnesota's Board of Appeal and Equalization meets this month. If you received your notice in May, your window is closing fast. June is the last major deadline month before summer.
June Appeal Deadlines
| State | Deadline | Where to File |
|---|---|---|
| Colorado | June 1 | County assessor |
| Indiana | June 15 (informal conference) | County assessor |
| Tennessee | June 15 | County Board of Equalization |
| Idaho | Fourth Monday in June | County Board of Equalization |
| Montana | First Monday in June | County tax appeal board |
| Nebraska | June 30 | County Board of Equalization |
| Minnesota | Board of Appeal and Equalization (varies) | County board |
| North Dakota | First Tuesday in June (end of window) | County/state Board of Equalization |
Key June Deadlines Explained
Colorado - June 1
Colorado assessment notices arrive in May, giving you roughly 2-3 weeks before the June 1 deadline. Colorado reassesses residential property every odd-numbered year, with the 2025 reassessment affecting 2026 and 2027 taxes. If your home value jumped during the last reassessment cycle, this is your chance to challenge it.
File your appeal with the county assessor. If the assessor denies your appeal, you can escalate to the county Board of Equalization (deadline is typically July 1) and then to the Board of Assessment Appeals at the state level.
Indiana - June 15 (Informal)
Indiana's first step is an informal conference with the county assessor, which must be requested by June 15 in most counties. If the informal process does not resolve your case, you have 45 days after the informal decision to file a formal appeal with the county Property Tax Assessment Board of Appeals (PTABOA).
Indiana assesses at 100% of market value. Check comparable sales to see if the assessed value matches what your home would realistically sell for.
Tennessee - June 15
Tennessee's county Board of Equalization deadline is June 15. Tennessee reassesses on a 4-6 year cycle depending on the county. Notices arrive in April-May. If your county just went through a reappraisal and values jumped, June 15 is your deadline to challenge the new number.
Idaho - Fourth Monday in June
Idaho homeowners must file with the county Board of Equalization by the fourth Monday in June. Idaho reassesses annually. Assessment notices arrive in June, and the appeal window is tight. If you receive your notice after mid-June, you may have very little time to prepare.
Nebraska - June 30
Nebraska's county Board of Equalization meets in June and July. File your protest by June 30. Nebraska reassesses annually, and values are based on actual sales data in the county. If your assessed value is higher than comparable recent sales, you have a case.
States With June Assessment Notices
| State | What Arrives | Appeal Deadline |
|---|---|---|
| Missouri | Assessment notices | Board of Equalization (typically July) |
| Montana | Assessment notices | First Monday in June |
| Nebraska | Assessment notices | June 30 |
| Idaho | Assessment notices | Fourth Monday in June |
June Payment Deadlines
| State | What Is Due | Date | Notes |
|---|---|---|---|
| Colorado | First installment (if split) | June 15 | Second half due January 15 |
| Idaho | Second installment | June 20 | First was due December 20 |
What to Do in June
If Your Deadline Is This Month
June deadlines leave little room for delay. If your appeal is due this month:
- File the appeal form immediately. Even a basic filing preserves your right to present evidence later.
- Focus on your 3 best comps. Three strong comparable sales beat a dozen weak ones.
- Check property details. A quick scan for errors takes 10 minutes and could reveal an easy win.
- Use our tool. Our evidence packet builder generates comparable sales and a formatted appeal packet in minutes. When time is short, this is the fastest path.
If You Missed Your Spring Deadline
If your March, April, or May deadline passed, check whether your state has a secondary appeal window. Some options:
- New Jersey: Tax Court filing deadline is October 1
- California: Assessment Appeals Board filing runs September 15 to November 30
- Texas: Binding arbitration is available after the ARB decision
If no secondary window exists, start preparing for next year. Sign up for our Annual Monitor ($49/year) so you never miss a deadline again.
If You Are in Missouri
Missouri notices arrive in June. The Board of Equalization meets in July, so you have roughly a month to review your assessment and prepare your case. Missouri reassesses every odd-numbered year (residential), so 2025 values carry into 2026.
Summer Preview
After June, the summer months are quieter for most states. But a few have important activity:
- California: Assessment notices arrive July-August
- Florida: TRIM notices arrive in August
- Washington: Board of Equalization deadline is July 1
- Utah: Assessment notices arrive July-August
Use the summer to prepare if your state has fall deadlines.
Your Next Steps
Put this information to work this week:
- Review your assessment notice. Check every detail: assessed value, property characteristics, square footage, lot size. Errors are more common than you think and they directly inflate your tax bill.
- Pull comparable sales. Find 3 to 5 similar properties near you that sold recently for less than your assessed value. This is the strongest evidence for any appeal.
- Check your exemption status. Contact your county assessor to confirm which exemptions are on file for your property. You may qualify for programs you have not applied for.
- Set a deadline reminder. Find your appeal deadline and put it on your calendar with a 2-week advance warning. Missing it costs you a full year of potential savings.
Staying Ahead of the Calendar
Property tax deadlines are spread throughout the year, and it is easy to lose track. The homeowners who save the most money are the ones who treat their assessment notice as a trigger for action, not something to file away and forget.
When your notice arrives, open it the same day. Check the assessed value against what you believe your home is worth. If the number looks too high, start gathering comparable sales immediately. Do not wait until the week before the deadline. The best appeals are built over weeks, not hours.
If you are in a state with quarterly tax payments, set reminders for each installment date. Late payment penalties add up fast and are entirely avoidable with basic calendar management.
Try our free tools
Frequently Asked Questions
How do June property tax deadlines vary by state?
June brings major appeal deadlines in Colorado (June 1), Indiana (June 15 informal), Tennessee (June 15), Idaho (fourth Monday), Montana (first Monday), and Nebraska (June 30). Assessment notices also arrive in Missouri, Montana, Nebraska, and Idaho this month.
What to Do in June?
June deadlines leave little room for delay. If your appeal is due this month: File the appeal form immediately. Even a basic filing preserves your right to present evidence later. Focus on your 3 best comps. Three strong comparable sales beat a dozen weak ones. Check property details. A quick scan for errors takes 10 minutes and could reveal an easy win.
What to Do in June?
Colorado, Indiana, Tennessee, Idaho, Nebraska - if your deadline is this month, act now. PropertyTaxFight builds your evidence packet in minutes. $79 one-time.
What property tax activities happen in the summer months?
After June, the summer months are quieter for most states. But a few have important activity: California receives assessment notices in July-August, Florida sends TRIM notices in August, and Washington has a Board of Equalization deadline on July 1.
Can I appeal my property taxes if my June deadline is coming up?
Colorado, Indiana, Tennessee, Idaho, Nebraska - if your deadline is this month, act now. PropertyTaxFight builds your evidence packet in minutes for a one-time fee of $79.