Property tax deadlines in October
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
46 dates in 15 states. Windows that open this month are included.
Alabama
| Date and source | Deadline | Applies to |
|---|---|---|
| October 1 every yearrevenue.alabama.govOct 21 | Bills due Bills are due | All 67 Alabama counties |
Alaska
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15 every yearkpb.usOct 21 | Bills due Full tax due | Kenai Peninsula Borough |
Arizona
| Date and source | Deadline | Applies to |
|---|---|---|
| October 1 every yearazleg.govOct 21 | Bills due First half due | All 15 Arizona counties |
Arkansas
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15 every yeardfa.arkansas.govOct 21 | Last day without penalty Last day to pay without a penalty | All 75 Arkansas counties |
| October 15 every yeardfa.arkansas.govOct 21 | Exemption filing Apply for the homestead credit | All 75 Arkansas counties |
| October 15 every yearunioncountyar.govOct 21 | Last day without penalty Last day to pay without a penalty | Union County |
Georgia
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15, 2026 passedfultoncountyga.govOct 21 | Last day without penalty 2026 temporary bills due | Fulton County |
Illinois
| Date and source | Deadline | Applies to |
|---|---|---|
| October 1, 2026 passedcookcountytreasurer.comOct 21 | Bills due 2025 taxes, second installment | Cook County |
| October 6, 2026 passedunioncountyil.govOct 21 | Bills due 2025 taxes, second installment | Union County |
| October 9, 2026 passedcasscountyil.govOct 21 | Other Last day to pay 2025 taxes before the tax sale | Cass County |
| October 9, 2026 passededgarcountyillinois.comOct 21 | Bills due 2025 taxes, second installment | Edgar County |
| October 9, 2026 passedmadisoncountyil.govOct 21 | Bills due 2025 taxes, third installment | Madison County |
| October 13, 2026 passedfranklinil.devnetwedge.comOct 21 | Bills due 2025 taxes, first installment | Franklin County |
| October 16, 2026 passedclaycounty.illinois.govOct 21 | Bills due 2025 taxes, first installment | Clay County |
| October 16, 2026 passedwilliamsonil.devnetwedge.comOct 21 | Bills due 2025 taxes, first installment | Williamson County |
| October 16, 2026 passedwashingtonco.illinois.govOct 21 | Bills due 2025 taxes, second installment | Washington County |
| October 16, 2026 passedpopeil.devnetwedge.comOct 21 | Bills due 2025 taxes, second installment | Pope County |
| October 23, 2026 2026 onlyadamscountyil.govOct 21 | Other Last day to pay 2025 taxes before the tax sale | Adams County |
| October 23, 2026 2026 onlydekalbcounty.orgOct 21 | Other Last day to pay 2025 taxes before the tax sale | DeKalb County |
| October 23, 2026 2026 onlycalhounil.devnetwedge.comOct 21 | Bills due 2025 taxes, first installment | Calhoun County |
| October 26, 2026 2026 onlyvernontownship.comOct 21 | Other 2026 Board of Review appeal, Vernon Township only | Lake County |
| October 26, 2026 2026 onlymybtao.comOct 21 | Other 2026 Board of Review appeal, Bloomingdale Township only | DuPage County |
| October 29, 2026 2026 onlychampaignil.devnetwedge.comOct 21 | Other Last day to pay 2025 taxes before the tax sale | Champaign County |
| October 29, 2026 2026 onlyfultonil.devnetwedge.comOct 21 | Other Last day to pay 2025 taxes before the tax sale | Fulton County |
| October 30, 2026 2026 onlywarrencountyil.govOct 21 | Bills due 2025 taxes, second installment | Warren County |
| November 6, 2026 2026 onlycookcountyboardofreview.comOct 21 | Other 2026 Board of Review appeal, Lyons, Northfield, Stickney and West Chicago townships only | Cook County |
Minnesota
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15 every yearrevisor.mn.govOct 21 | Last day without penalty Second half, last day without a penalty | All 87 Minnesota counties |
Nevada
| Date and source | Deadline | Applies to |
|---|---|---|
| October 5, 2026 passedwashoecounty.govOct 21 | Bills due 2026-27 second installment due | Washoe County |
| October 5, 2026 passeddouglascountynvclerktreasurer.hosted.civiclive.comOct 21 | Bills due 2026-27 second installment due | Douglas County |
| October 5, 2026 passedtreasurer.co.clark.nv.usOct 21 | Bills due 2026-27 second installment due | Clark County |
| October 15, 2026 passedwashoecounty.govOct 21 | Last day without penalty Pay installment 2 without penalty | Washoe County |
| October 15, 2026 passedtreasurer.co.clark.nv.usOct 21 | Last day without penalty Pay 2026-27 installment 2 without penalty | Clark County |
New York
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15 every yearnyc.govOct 21 | Last day without penalty Quarterly bill: pay October's by this day | Bronx County, Kings County, New York County, Queens County, Richmond County |
North Dakota
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15 every yearndlegis.govOct 21 | Last day without penalty Second installment, last day without a penalty | All 53 North Dakota counties |
South Dakota
| Date and source | Deadline | Applies to |
|---|---|---|
| October 31 every yearsdlegislature.govOct 21 | Last day without penalty Pay the second half | All 66 South Dakota counties |
Tennessee
| Date and source | Deadline | Applies to |
|---|---|---|
| April 5, 2027 2027 onlytrustee.knoxcounty.orgOct 21 | Exemption filing Apply for 2026 tax relief or a freeze | Knox County |
Vermont
| Date and source | Deadline | Applies to |
|---|---|---|
| October 15, 2026 passedtax.vermont.govOct 21 | Exemption filing Last chance to file a 2026 Homestead Declaration | All 14 Vermont counties |
Virginia
| Date and source | Deadline | Applies to |
|---|---|---|
| October 5 every yeardlasprodpublic.blob.core.windows.netOct 21 | Bills due October half due | Roanoke city |
| October 5 every yeararlingtonva.usOct 21 | Bills due Second payment due | Arlington County |
| October 5 every yearhanovercounty.govOct 21 | Bills due Second half due | Hanover County |
| October 15 every yearnortonva.govOct 21 | Bills due Second half due | Norton city |
| October 31 every yearhenrycountyva.govOct 21 | Bills due Tax due | Henry County |
| October 31 every yearleecountytreasurer.comOct 21 | Bills due Second half due | Lee County |
Washington
| Date and source | Deadline | Applies to |
|---|---|---|
| October 31 every yearkingcounty.govOct 21 | Other Weekend and holiday due dates move | King County |
| October 31 every yearapp.leg.wa.govOct 21 | Last day without penalty Second half due | All 39 Washington counties |
| October 31, 2026 2026 onlyclark.wa.govOct 21 | Last day without penalty 2026 second half due, per the county | Clark County |