Property tax deadlines in May
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74 dates in 20 states. Windows that open this month are included.
Alabama
| Date and source | Deadline | Applies to |
|---|---|---|
| May 27, 2026 passedmobilecopropertytax.comOct 21 | Appeal deadline Appeal your 2026 value | Mobile County |
Arizona
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 every yearazleg.govOct 21 | Last day without penalty Pay the second half by 5 p.m. | All 15 Arizona counties |
| May 3, 2027 2027 onlypima.govOct 21 | Last day without penalty Last day for the 2026 second half | Pima County |
| May 3, 2027 2027 onlyyavapaiaz.govOct 21 | Last day without penalty Last day for the 2026 second half | Yavapai County |
| May 3, 2027 2027 onlyaz-coconinocounty2.civicplus.comOct 21 | Last day without penalty Last day for the 2026 second half | Coconino County |
Arkansas
| Date and source | Deadline | Applies to |
|---|---|---|
| May 31 every yeardfa.arkansas.govOct 21 | Other Assess personal property | All 75 Arkansas counties |
Colorado
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 to June 1 every yearleg.colorado.govOct 21 | Appeal deadline Protest your home or land value | All 64 Colorado counties |
Connecticut
| Date and source | Deadline | Applies to |
|---|---|---|
| February 1 to May 15 every yearportal.ct.govOct 21 | Exemption filing Apply for the elderly or disabled tax credit | All 8 Connecticut counties |
Indiana
| Date and source | Deadline | Applies to |
|---|---|---|
| May 10 every yearin.govOct 21 | Bills due Spring installment, last day without a penalty | All 92 Indiana counties |
Kansas
| Date and source | Deadline | Applies to |
|---|---|---|
| May 10 every yearksrevisor.orgOct 21 | Last day without penalty Pay the second half | All 105 Kansas counties |
Massachusetts
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 every yearmass.govOct 21 | Bills due Quarterly towns: last quarter due | All 14 Massachusetts counties |
| May 3, 2027 2027 onlynantucket-ma.govOct 21 | Bills due FY2027 last quarter (actual bill) due | Nantucket County |
Michigan
| Date and source | Deadline | Applies to |
|---|---|---|
| May 31 every yearmichigan.govOct 21 | Appeal deadline Tax Tribunal deadline for business property | All 83 Michigan counties |
Minnesota
| Date and source | Deadline | Applies to |
|---|---|---|
| May 15 every yearrevisor.mn.govOct 21 | Last day without penalty First half, last day without a penalty | All 87 Minnesota counties |
| May 31 every yearrevisor.mn.govOct 21 | Last day without penalty First half for seasonal resort property | All 87 Minnesota counties |
Montana
| Date and source | Deadline | Applies to |
|---|---|---|
| May 31 every yearlccountymt.govOct 21 | Last day without penalty Second half due | Lewis and Clark County |
| May 31 every yearmadisoncountymt.govOct 21 | Last day without penalty Second half due | Madison County |
| May 31 every yearblainecounty-mt.govOct 21 | Last day without penalty Second half due | Blaine County |
| May 31 every yearcartercountymt.govOct 21 | Last day without penalty Second half due | Carter County |
| May 31 every yearcustercountymt.govOct 21 | Last day without penalty Second half due | Custer County |
| May 31 every yeardanielscountymt.govOct 21 | Last day without penalty Second half due | Daniels County |
| May 31 every yearfergusmt.govOct 21 | Last day without penalty Second half due | Fergus County |
| May 31 every yeargoldenvalleycountymt.orgOct 21 | Last day without penalty Second half due | Golden Valley County |
| May 31 every yearjbcountymt.govOct 21 | Last day without penalty Second half due | Judith Basin County |
| May 31 every yearlakemt.govOct 21 | Last day without penalty Second half due | Lake County |
| May 31 every yearlibertycountymt.govOct 21 | Last day without penalty Second half due | Liberty County |
| May 31 every yearmeagherco.comOct 21 | Last day without penalty Second half due | Meagher County |
| May 31 every yearco.mineral.mt.usOct 21 | Last day without penalty Second half due | Mineral County |
| May 31 every yearmusselshellcounty.govOct 21 | Last day without penalty Second half due | Musselshell County |
| May 31 every yearpetroleumcountymt.orgOct 21 | Last day without penalty Second half due | Petroleum County |
| May 31 every yearprairiecounty.orgOct 21 | Last day without penalty Second half due | Prairie County |
| May 31 every yearrichland.orgOct 21 | Last day without penalty Second half due | Richland County |
| May 31 every yearrooseveltcountymt.govOct 21 | Last day without penalty Second half due | Roosevelt County |
| May 31 every yearco.silverbow.mt.usOct 21 | Last day without penalty Second half due | Silver Bow County |
| May 31 every yearsgcountymt.govOct 21 | Last day without penalty Second half due | Sweet Grass County |
| May 31 every yearwheatlandcomt.govOct 21 | Last day without penalty Second half due | Wheatland County |
| May 31 every yearponderacountymt.govOct 21 | Last day without penalty Second half due | Pondera County |
| May 31 every yearco.silverbow.mt.usOct 21 | Last day without penalty Second half due | All 32 Montana counties except Blaine, Carter, Custer, Daniels, Fergus, Gallatin, Golden Valley, Judith Basin, Lake, Lewis and Clark, Liberty, Madison, Meagher, Mineral, Musselshell, Petroleum, Pondera, Prairie, Richland, Roosevelt, Sanders, Silver Bow, Sweet Grass, Wheatland |
| May 31, 2026 passedravalli.usOct 21 | Last day without penalty 2025 second half due | Ravalli County |
| May 31, 2027 2027 onlygallatinmt.govOct 21 | Last day without penalty 2026 second half due | Gallatin County |
| May 31, 2027 2027 onlyco.sanders.mt.usOct 21 | Last day without penalty 2026 second half due | Sanders County |
New Jersey
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 every yearnj.govOct 21 | Bills due Second quarter due | All 21 New Jersey counties |
New Mexico
| Date and source | Deadline | Applies to |
|---|---|---|
| May 10 every yeartax.newmexico.govOct 21 | Last day without penalty Pay the second half | All 33 New Mexico counties |
New York
| Date and source | Deadline | Applies to |
|---|---|---|
| May 10 every yearhempsteadny.govOct 21 | Last day without penalty School tax second half | Nassau County |
| May 31 every yearsuffolkcountyny.govOct 21 | Last day without penalty Second half: last day without interest | Suffolk County |
Oregon
| Date and source | Deadline | Applies to |
|---|---|---|
| May 15 every yearoregon.govOct 21 | Bills due Last third due | All 36 Oregon counties |
| May 17, 2027 2027 onlydeschutescounty.govOct 21 | Bills due 2026-27 last payment due | Deschutes County |
| May 17, 2027 2027 onlymultco.usOct 21 | Bills due Multnomah County: 2026-27 last payment due | Multnomah County |
| May 17, 2027 2027 onlyclackamas.usOct 21 | Bills due 2026-27 last payment due | Clackamas County |
| May 17, 2027 2027 onlyclatsopcounty.govOct 21 | Bills due 2026-27 last payment due | Clatsop County |
Tennessee
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 every yearcomptroller.tn.govOct 21 | Other Shelby appeal board starts meeting | Shelby County |
| June 26, 2026 passednashville.govOct 21 | Appeal deadline Book a formal 2026 appeal | Davidson County |
Texas
| Date and source | Deadline | Applies to |
|---|---|---|
| May 15 every yearcomptroller.texas.govOct 21 | Appeal deadline Protest your value | All 254 Texas counties |
| May 15 every yearcomalad.orgOct 21 | Appeal deadline Protest your value | Comal County |
| May 15, 2026 passedhctax.netOct 21 | Appeal deadline File your 2026 protest | Harris County |
| May 15, 2026 passeddallascad.orgOct 21 | Appeal deadline Protest your 2026 home or building value | Dallas County |
| May 17, 2027 2027 onlygalvestoncountytx.govOct 21 | Appeal deadline Book a protest meeting for 2027 value | Galveston County |
| May 31 every yeartax-office.traviscountytx.govOct 21 | Bills due Quarter plan, payment 3 | Travis County |
| May 31 every yearcameroncountytx.govOct 21 | Bills due Quarter Pay, payment 3 | Cameron County |
| May 31 every yeartcss.legis.texas.govOct 21 | Bills due Quarter plan, payment 3 | All 246 Texas counties except Harris, Travis, Bexar, Cameron, Tarrant, Galveston, Comal, Williamson |
| May 31 every yeartax.wilcotx.govOct 21 | Bills due Quarter Pay, payment 3 | Williamson County |
| May 31 every yearcomalcounty.govOct 21 | Bills due Quarter plan, payment 3 | Comal County |
| May 31, 2026 passedhctax.netOct 21 | Bills due Quarter plan, payment 3 (2025 taxes) | Harris County |
| May 31, 2026 passedbexar.orgOct 21 | Bills due Quarter plan, payment 3 (2025 taxes) | Bexar County |
Virginia
| Date and source | Deadline | Applies to |
|---|---|---|
| May 1 every yearfairfaxcounty.govOct 21 | Exemption filing Renew senior and disability tax relief | Fairfax County |
| May 1 every yearwilliamsburgva.govOct 21 | Appeal deadline Appeal to the Board of Equalization | Williamsburg city |
| May 15 every yearcolonialheightsva.govOct 21 | Bills due First half due | Colonial Heights city |
| May 15 every yearnortonva.govOct 21 | Bills due First half due | Norton city |
| May 15 every yearlynchburgva.govOct 21 | Bills due Fourth quarter due | Lynchburg city |
| May 20 every yearwashcova.comOct 21 | Bills due First half due | Washington County |
| May 25 every yearrussellcountyva.govOct 21 | Bills due First half due | Russell County |
| May 31 every yearleecountytreasurer.comOct 21 | Bills due First half due | Lee County |
Wisconsin
| Date and source | Deadline | Applies to |
|---|---|---|
| May 31 every yearcityofmadison.comOct 21 | Last day without penalty City of Madison: third of four installments | Dane County |
Wyoming
| Date and source | Deadline | Applies to |
|---|---|---|
| May 10 every yearwyoleg.govOct 21 | Last day without penalty Pay the second half | All 23 Wyoming counties |