Kauai County, HI property tax deadlines
4 coming property tax dates for Kauai County, Hawaii. Each one links to its official source and shows the day LevyDay last checked it.
| Next dates | Bills due | Last day without penalty | Appeal by | Exemption filing |
|---|---|---|---|---|
| Kauai | Feb 20, 2027 Satkauai.govOct 21 | Not on file | Dec 31, 2026kauai.govOct 21 | Sep 30, 2027kauai.govOct 21 |
Deadlines in date order
| Date and source | Deadline |
|---|---|
| February 20 every yearkauai.govOct 21 | Bills due Second half due, last day without penalty A weekend or holiday moves it to the next working day. |
| August 20 every yearkauai.govOct 21 | Bills due First half due, last day without penalty A weekend or holiday moves it to the next working day. Postmarks count. Late taxes get a 10% penalty plus 1% a month interest. |
| September 30 every yearkauai.govOct 21 | Exemption filing File your home exemption |
| December 1 to December 31 every yearkauai.govOct 21 | Appeal deadline Appeal to the Board of Review You can appeal from December 1 to 31. It costs $75 per appeal. |
Appealing your assessed value
Appeal by Dec 31, 2026 in 69 dayskauai.govOct 21
If you think the county valued your home too high, you can appeal. Filing with the county is free and you can do it yourself.
Get help filing an appeal
After you send your details, we look for an independent appeal firm or attorney to take your case. We'll be in touch once one has agreed. Firms usually charge a share of what you save, and the one that takes it may pay LevyDay a referral fee.
LevyDay doesn't file appeals or give legal or tax advice. We only pass your details on. The independent firm or attorney that takes your case does the work and sets its own fee.
Get help filing an appealGood to know in Hawaii
- Paying late: On Kauai, a late payment gets a one time 10% penalty plus interest of 1% a month. kauai.govOct 21
- Appealing your value: On Kauai, appeal to the Real Property Board of Review on form P-51. It costs $75 per appeal. kauai.govOct 21
- Homestead exemption: On Kauai, residents claiming a principal residence must live in it at least 271 days a year, hold a Hawaii driver's license or ID, and file a full-time resident Hawaii N-11 tax return. kauai.govOct 21
Official offices
- County of Kauai Real Property Assessment Section
- County of Kauai Real Property Billing & Collections Section
Places in Kauai County
They are: Anahola, Eleele, Haena, Hanalei, Hanamaulu, Hanapepe, Kalaheo, Kalihiwai, Kapaa, Kaumakani, Kekaha, Kilauea, Koloa, Lawai, Lihue, Omao, Pakala Village, Poipu, Princeville, Puhi, Wailua, Wailua Homesteads, Waimea, Wainiha. Every place in the county gets the dates above.