Rate Breakdown

Property taxes in Kenai Peninsula Borough County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Kenai Peninsula Borough County

The Kenai Peninsula Borough (KPB) levies property taxes based on the assessed value of real and personal property located within the borough’s boundaries. Each year the KPB Assessor’s Office conducts a systematic assessment that reflects market conditions, recent sales, and improvements made to the property. The assessment is expressed as a percentage of the property's true market value, known as the assessed value, which becomes the taxable base.

Once the assessed value is determined, the borough applies its millage rate to calculate the tax bill. One “mill” equals one‑tenth of one cent (0.001) of assessed value. For example, a millage rate of 20 mills on a property assessed at $150,000 results in a tax of $3,000 (150,000 × 0.020). The KPB combines the borough-wide rate with any additional rates imposed by cities, school districts, or special districts that overlap the parcel. These combined rates are published annually on the borough’s website and in the property tax notice mailed to each taxpayer.

Available Exemptions

KPB residents may qualify for several state‑wide exemptions that reduce the taxable portion of their assessed value. The most common are:

• Homestead Exemption – Reduces the assessed value of a primary residence by up to $50,000 (or a percentage set by the state) for owners who occupy the home as their permanent dwelling.
• Senior Citizen Exemption – Provides an additional reduction for owners age 65 or older who meet income limits; the exemption amount is adjusted annually.
• Disability Exemption – Available to homeowners with qualifying physical or mental disabilities; the exemption mirrors the homestead reduction but is limited to the specific qualifying portion of the property.
• Veteran Exemption – Honors Alaska‑registered veterans and, in some cases, their surviving spouses. The exemption amount can range from $5,000 to $10,000, depending on veteran status and disability rating.

To claim any exemption, owners must file the appropriate application with the KPB Assessor’s Office by the March 31 deadline for the tax year. Supporting documentation—such as proof of age, disability determination, or veteran status—must accompany the request.

Payment Schedule & Deadlines

Property taxes in the Kenai Peninsula Borough are due in two installments:

• First installment: October 1 – November 30 (approximately 50 % of the total bill).
• Second installment: March 1 – April 30 (the remaining balance).

Paying the full amount by the October 1 deadline eliminates any interest charges. If you choose to pay in installments, the second payment must be received by April 30 to avoid a late‑payment penalty of 5 % of the outstanding balance plus monthly interest of 0.5 %.

The borough accepts payments by mail, online through the official KPB tax portal, or in person at designated municipal offices. Setting up an automatic bank draft is encouraged, as it guarantees timely receipt and eliminates the risk of missed deadlines.

Appealing Your Assessment

If you believe your property’s assessed value is inaccurate, you have the right to appeal. Follow these steps to initiate the appeals process in KPB:

• Review the notice: The assessment notice includes a “Notice of Protest” form and explains the deadline—typically 30 days from the mailing date.
• File a protest: Submit the completed form and any supporting evidence (e.g., recent comparable sales, independent appraisals, photos of property condition) to the KPB Assessor’s Office either by mail, fax, or through the online portal.
• Pre‑hearing conference: An assessor will review your documentation and may offer a revised assessment without a formal hearing.
• Formal hearing: If the issue remains unresolved, you may request a hearing before the KPB Board of Assessment Appeals. The board consists of three members appointed by the Borough Assembly who will consider testimony, evidence, and applicable statutes.
• Final determination: The board issues a written decision, which becomes the final taxable value unless you further appeal to the Alaska State Court system within 30 days of the board’s ruling.

Timely filing and thorough documentation are critical; incomplete protests are often dismissed, and missed deadlines eliminate the right to contest the assessment for that tax year.