Farm and Forestland Deferrals

Farm and forestland deferrals allow residents to defer a portion of their property taxes to a later date if they meet certain criteria, like acreage size and land use.

In 1961, Oregon passed legislation to adopt Special Assessment Laws for Agricultural and Forestry practices. The Legislature recognized that Agriculture and Forestry significantly contribute to Oregon’s Character and economy. As an incentive to promote agriculture and Forestry practices, Oregon offers several Special Assessment Programs. These programs reduce the property tax the landowner pays annually- if the owners agree to manage the property primarily for farming or for growing and harvesting timber.

To apply for either deferral, you will need to apply to the Clackamas County Assessor to determine if your land qualifies.

CMap is where you can find your zoning and jurisdiction information.

Applications can be requested by email or picked up from the Assessor’s office between January 1 and April 1 of each tax year.

Exclusive Farm Use (EFU)

Must have had a commercial farm use prior year.

Application Period Original or first applicationNone required, but notify Assessor of your farm use.
Requirements to remain qualifiedProfit motive   
Typical and accepted farming practices each and every year. May qualify for farm homesite.
Change of primary use ORS 308A.724 to another special assessmentRegular application time.

Unzoned Farmland

Profit motive, typical and accepted farming practices each and every year and continue to meet gross income requirements”.See below.

Application Period Original or first applicationJan. 1 – April 1
Requirements to remain qualifiedProfit motive   
Typical and accepted farming practices each and every year and income requirements according to size of operation.
Change of primary use ORS 308A.724 to another special assessmentRegular application time.

100% Forestland

Two (2) acres or more of forestland. Held and used for the primary purpose of growing and harvesting trees of a marketable species.

Application Period Original or first applicationJan. 1 – April 1
Requirements to remain qualifiedMeets stocking standards Forest Practice Act replanting at end of harvesting. Minimum 200 trees per acre.
Change of primary use ORS 308A.724 to another special assessmentRegular application time. Also change from one forestland option to another.
Severance tax due at harvest of forest productNo

20% Small Tract Forestland

10 to 4,999 forestland acres. Held and used for the primary purpose of growing and harvesting trees of a marketable species.

Application Period Original or first applicationJan. 1 – April 1. New application required by purchaser within 30 days of notification.
Requirements to remain qualifiedMeets stocking standards Forest Practice Act replanting at end of harvesting. Minimum 200 trees per acre.
Change of primary use ORS 308A.724 to another special assessmentRegular application time. Also change from one forestland option to another.
Severance tax due at harvest of forest productYes

Disqualification by Assessor or by State Forester? Owner may apply for another special assessment. Seller required to notify assessor upon change of ownership.

DateFile by
Jan. – JuneAug. 1
July – Dec.Next years regular filing time