The Agricultural Questionnaire is the form the Boulder County Assessor's Office sends to property owners so it can confirm whether land is still used as an agricultural operation for monetary profit. It is one of the Boulder County property tax forms that affects how land is classified and valued. Owners report tenant, boarding, farm, ranch, expense and water-rights information. On this page you can fill out the form online on FillingPDF and download or print the completed PDF; the Assessor publishes the original at bouldercounty.gov.
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What is Agricultural Questionnaire – Boulder County, CO?
The Agricultural Questionnaire is a Boulder County Assessor's Office form that collects income, use and expense information from owners of agricultural land, so the Assessor can decide whether the land is currently used in an agricultural endeavor for monetary profit.
The Assessor's letter on the form explains the legal frame. Agricultural land is valued by the income approach, based on the earning capability of the land, under 39-1-103(5)(a), C.R.S. Under 39-1-102(3.5) and (13.5), C.R.S., use of the land for monetary profit from agricultural activities is the determining factor for classifying it as agricultural land.
The questionnaire opens with a yes/no question on whether the land was used as a ranch or farm on January 1, 2026. If it was not, the property will be reclassified and valued at current market value. If it was, you complete only the sections that fit your property:
- Long-Term Tenant/Lease
- Animal Boarding
- Farm
- Ranch
- Expenses
- Decreed Water Rights
Agricultural valuation applies a capitalization rate to a net operating income, which is why the Expenses section is required for any property that reports data in the tenant, boarding, farm or ranch sections.
Who needs to file Agricultural Questionnaire – Boulder County, CO?
The main group is owners of land in Boulder County who receive the Agricultural Questionnaire from the Assessor's Office, which the form addresses to "Property Owner" and asks to cooperate with the reappraisal of agricultural property.
Within the form, who completes which section depends on the property:
- Owners whose land is rented or leased for agricultural use for a period exceeding 12 months complete Long-Term Tenant/Lease.
- Owners of property with animal boarding complete Animal Boarding.
- Owners with farm operations complete Farm; owners with ranch operations complete Ranch.
- Owners who qualify for an agricultural classification through ownership of decreed water rights or a final permit for appropriated groundwater answer the Decreed Water Rights questions.
- Anyone who reports data in the tenant, boarding, farm or ranch sections also completes Expenses.
Owners whose land is no longer used as an agricultural operation for monetary profit answer No to the first question; the form says the property will then be reclassified and valued on current market value. The form does not describe who may sign or file on an owner's behalf.
When to file Agricultural Questionnaire – Boulder County, CO
The form asks you to complete and return it within 30 days. It is tied to the Assessor's reappraisal of agricultural property, and the first question asks about use of the land on January 1, 2026.
The form states that submitted information must be from the July 1, 2023 through June 30, 2025 time period, and its tables ask for figures by calendar years 2023, 2024 and 2025. Have records for those years ready before you start. If the questionnaire arrives with a different instruction, or you need more time, call the Assessor's Office at 303.441.3530.
Documents you need
- A copy of the lease, with the unit measure (price per acre, per land square foot or per building square foot), if the property is rented or leased for more than 12 months and you complete the Long-Term Tenant/Lease section.
- The most recent rent roll or summary operating statement, optional, in place of completing the Long-Term Tenant/Lease or Animal Boarding section if it contains the information requested.
- Profit and loss statements or a summary operating statement, optional, in place of completing the Farm or Ranch section if they contain the information requested.
- Supporting documentation for gross income from harvested product sold, on the Farm section.
- Supporting documentation for gross income from the sale or use of livestock, on the Ranch section.
- Appropriate documentation of a decreed right to appropriated water under article 92 of title 37, C.R.S., if you answer YES.
- Appropriate documentation of a final permit to appropriated ground water under article 90 of title 37, C.R.S., if you answer YES.
How to fill out Agricultural Questionnaire – Boulder County, CO
Enter contact and property details
Fill in your email address, phone number, property address, and city, state and ZIP.
Answer the January 1, 2026 question
Answer YES or NO to whether the land was being used as a ranch or farm on January 1, 2026. If it is no longer an agricultural operation, the form says the property will be reclassified.
Complete Long-Term Tenant/Lease if it applies
If the property is leased for more than 12 months, enter the total rentable area, any owner-occupied area and the rent per year for 2023, 2024 and 2025. Attach the lease, or submit a rent roll or summary operating statement instead.
Complete Animal Boarding if it applies
Enter the number of stalls, kennels or boarding quarters, the boarding rate, whether feed is included, and gross annual boarding income for 2023, 2024 and 2025. Add any training, veterinary, exercising or other boarding income and explain it.
Complete the Farm section if it applies
For each year 2023 to 2025, report the percent of the property used for farming, residence and occupancy answers, acres planted per harvested type, quantities sold and used by the owner, and gross income. Provide supporting documentation.
Complete the Ranch section if it applies
For each year 2023 to 2025, report the percent used for ranching, residence answers, livestock grazed, number and ownership of livestock, months grazed and gross income from the sale or use of livestock. Provide supporting documentation.
Enter annual operating expenses
For each expense item, mark Owner, Tenant or Shared and enter the 2023, 2024 and 2025 amounts. Then enter Total Operating Expenses.
Answer the Decreed Water Rights questions
Answer YES or NO on whether there is a decreed right to appropriated water under article 92 of title 37, C.R.S., and a final permit to appropriated ground water under article 90 of title 37, C.R.S. Provide documentation for each YES.
Review and download the completed PDF
Check that only the pertinent sections are filled and the years match the form. Download or print the completed PDF from FillingPDF, then return it with attachments through the channels under How to submit.
How to submit Agricultural Questionnaire – Boulder County, CO
You can return the Agricultural Questionnaire by USPS mail, by email or online.
- Mail: Boulder County Assessor's Office, PO Box 471, Boulder, CO 80306.
- Email: the form's instructions give [email protected]. The letterhead prints [email protected], so confirm the address with the office at 303.441.3530 if a message bounces.
- Online: the Assessor's forms page at https://bouldercounty.gov/property-and-land/assessor/forms/ lists "File an Agricultural Classification Questionnaire Online" and "Download an Agricultural Classification Questionnaire" under the Agricultural Land section.
Attach any lease, statements or supporting documentation the sections ask for. The form asks for the return within 30 days and names no fee. FillingPDF lets you fill out and download the PDF; submission follows the Assessor's channels above.
Common mistakes to avoid
- Completing sections that do not apply; the form says to complete only the pertinent section(s) for your property.
- Leaving the Expenses section blank after reporting data in the long-term tenant, animal boarding, farming or ranching sections; the expense data is required in that case.
- Reporting figures outside the July 1, 2023 through June 30, 2025 time period that the form specifies.
- Omitting the lease when completing the Long-Term Tenant/Lease section; the form asks you to attach a copy with the unit measure.
- Including rent for owner-occupied areas in the rental income question, which says not to include it.
- Answering YES to a decreed water right or final groundwater permit question without providing the documentation the form requests.
- Not saying who pays each expense (Owner, Tenant or Shared) when the property is tenant occupied.
- Sending the form by mail to the Pearl St. street address printed in the letterhead instead of the PO Box 471 address the form gives for returns.
Frequently asked questions
What is the Boulder County Agricultural Questionnaire?
It is a form from the Boulder County Assessor's Office that asks owners about the use, income and expenses of agricultural land. The Assessor uses the answers to decide whether the land is currently used in an agricultural endeavor for monetary profit.
How long do I have to return the Agricultural Questionnaire?
The form asks you to complete and return it within 30 days. If you need more time, call the Assessor's Office at 303.441.3530 rather than assuming an extension.
Where do I send the Boulder County Agricultural Questionnaire?
Return it by USPS mail to Boulder County Assessor's Office, PO Box 471, Boulder, CO 80306, by email to [email protected], or online through the Agricultural Land section of the Assessor's forms page on bouldercounty.gov.
Do I have to complete every section of the questionnaire?
No. The form says to complete only the section(s) that fit your property: tenant, animal boarding, farm, ranch or water rights. The Expenses section is required if you provide data in the tenant, boarding, farm or ranch sections.
What happens if my land is no longer used for agriculture?
Answer NO to the first question. The form says the property will be reclassified and valued under the applicable approaches and methodology that reflect current market value.
What documents should I attach?
It depends on the sections you complete: a lease for long-term tenants, supporting documentation for harvest or livestock income, and documentation of any decreed water right or final groundwater permit. A rent roll or profit and loss statements can replace parts of the form.
Can I fill out the Boulder County property tax agricultural form online?
Yes. You can fill out the PDF online on FillingPDF and download or print it. FillingPDF is independent and does not send it to the Assessor; you submit it by mail, email or the county's online form.
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