The Bon Homme County Property Appraiser office maintains a public portal that combines parcel‑level GIS data, tax information, and ownership records. Residents can locate a parcel, view its boundaries, and see the latest assessment without leaving home. The system draws from the Bon Homme County GIS parcel database, which is refreshed after every field survey and annually after the tax roll is finalized. Below, each major function of the portal is explained, followed by practical tips for getting the most accurate result.
Property Search Tool
What is the Bon Homme County Property Search Tool?
The search tool is a web‑based interface that queries the county’s parcel database. Users enter an address, owner name, or parcel identifier, and the system returns a summary card with the legal description, assessed value, and a clickable map. The map layer is powered by Bon Homme County GIS maps, which display property boundaries, road networks, flood‑plain overlays, and zoning districts.
Is the Property Search Tool free to use?
Yes. All residents may access the portal at no charge. No registration is required for a basic lookup. Advanced features such as bulk CSV export or historical layers are available to registered users for a nominal fee of $10 per year.
How often is the Bon Homme County property database updated?
Field crews verify new construction and boundary changes each quarter. After each verification cycle, the GIS parcel database is refreshed within 48 hours. The annual tax roll, which incorporates the latest assessment values, is posted in early March and becomes the reference point for the year’s calculations.
Can I search using only part of an address or owner’s name?
Partial queries are supported. The engine uses wildcard matching, so entering “Main” will list all parcels on Main Street, and “Smith” will return every owner whose surname contains Smith. Results appear in alphabetical order, with the most recent assessment shown first.
What should I do if I can’t find my property in the search results?
First, verify the spelling of the address or owner name. If the parcel was subdivided after the last quarterly update, it may appear under a new identifier. In that case, use the “Parcel Lookup” field and enter the tax map number printed on your most recent property tax bill. If the property still does not appear, contact the office using the details in the next section.
Contact Information for Assistance
- Office: Bon Homme County Assessor’s Office, 802 S. Main St, Tyndall, SD 57066
- Phone: (605) 384‑4321
- Email: assessor@bonhomme.sd.gov
- Hours: Monday‑Friday 8:00 am – 5:00 pm
Online Tax Estimator
What is the Bon Homme County Property Tax Estimator Tool?
The estimator calculates a projected tax bill based on the most recent assessment, the county’s mill rate, and any applicable exemptions. Users input a parcel identifier or address, select the tax year, and the tool returns a dollar amount broken down by school, road, and general fund portions.
Can I use the Tax Estimator for any property in Bon Homme County?
All taxable parcels are covered, including residential, commercial, agricultural, and vacant land. Exempt properties—such as those fully qualified for the primary residence classification—will display a zero balance for the exemption portion.
Does the estimator show the exact tax amount due?
The figure reflects the current assessment and mill rate. Final amounts may differ if the owner files an exemption after the estimate is generated or if a supplemental assessment is issued later in the year.
Can I compare tax estimates from previous years?
Yes. The interface includes a “Historical” tab where users select any year from 2015 onward. The comparison view highlights changes in assessed value, mill rate, and exemption status, making it easy to spot trends.
Bon Homme County Tax Roll
What is the property tax roll?
The tax roll is the official list of every taxable parcel, its assessed value, and the resulting tax liability for a given fiscal year. It serves as the legal basis for billing, collection, and appeals.
Who is responsible for preparing the tax roll?
The Assessor’s Office compiles the roll, while the Treasurer’s Office reviews it for accuracy before it is certified by the County Board of Commissioners.
When is the Bon Homme County tax roll finalized each year?
Final certification occurs on the first Monday of March. The roll is then posted on the county website and mailed to all property owners.
Can I access previous years’ tax rolls?
All historic rolls are archived in PDF format on the assessor’s website. Users may download the 2022 roll at https://bonhomme.sd.gov/assessor/2022-tax-roll.pdf and the 2021 roll at https://bonhomme.sd.gov/assessor/2021-tax-roll.pdf.
Why accessing past tax rolls matters
- Identifies long‑term value trends for investment decisions.
- Helps owners verify that exemptions were applied correctly.
- Provides evidence for appeals that claim over‑assessment.
Primary Residence Property Tax Relief
What is primary residence property tax classification in Bon Homme County?
Properties that serve as the owner’s main home receive a reduced mill rate. The classification lowers the taxable portion of the assessed value by a statutory percentage, currently 30 %.
Who qualifies for primary residence property tax relief?
Homeowners who occupy the dwelling for at least 183 days per year, own the property, and file a declaration of primary residence with the assessor’s office qualify. The relief applies to single‑family homes, duplexes, and certain mobile homes.
How and where do I apply for this classification?
Online Application
- Log in to the assessor’s portal at https://bonhomme.sd.gov/assessor/portal.
- Select “Primary Residence Relief” from the menu.
- Upload a copy of a government‑issued ID and a utility bill dated within the last 30 days.
- Submit the form; a confirmation email follows within 24 hours.
In‑Person Application
- Visit the Assessor’s Office during regular business hours.
- Complete the “Primary Residence Declaration” form (PDF available at https://bonhomme.sd.gov/assessor/forms/primary-residence.pdf).
- Present two forms of residency proof, such as a driver’s license and a recent mail piece.
- Receive an on‑the‑spot receipt.
What is the deadline to apply?
All applications must be filed by October 1 of the preceding year. Late submissions are processed the following year, affecting only the next tax cycle.
How do life changes affect eligibility?
Moving, marriage, or the acquisition of a second home may alter status. Owners must update the declaration within 30 days of any change; otherwise the relief may be revoked during the next roll.
General Property Appraiser Information
Can I view historical property records online?
Yes. The “Historical Records” tab provides PDFs of past deeds, plats, and assessment notices dating back to 1975. Each document bears a unique identifier that matches the parcel number.
How can I appeal my property’s assessed value?
Owners file a written protest within 30 days of the roll’s posting. The protest must include a recent independent appraisal, photographs, and a statement of why the current value is inaccurate. The Assessor’s Review Board holds a hearing within 60 days of receipt.
Can I verify property ownership online?
The “Ownership Verification” feature cross‑references the parcel identifier with the County Recorder’s index. Results show the current owner’s name, mailing address, and any recorded liens.
What should I do if my property details appear incorrect?
First, compare the GIS map with the legal description on the deed. If discrepancies persist, submit a “Data Correction Request” via the portal, attaching supporting documents. The office typically resolves issues within two weeks.
How does the Bon Homme County Assessor protect personal data?
All online transactions use HTTPS encryption. Personal identifiers are stored on a secure server that complies with the South Dakota Data Privacy Act. Access logs are reviewed weekly to detect unauthorized activity.
Contact & Support
How do I contact the Bon Homme County Assessor’s Office?
Phone: (605) 384‑4321
Email: assessor@bonhomme.sd.gov
Mailing address: Bon Homme County Assessor’s Office, 802 S. Main St, Tyndall, SD 57066
How do I update my name or mailing address?
For Name Changes
- Submit a copy of a court order or marriage certificate.
- Complete the “Record Update” form available at https://bonhomme.sd.gov/assessor/forms/record-update.pdf.
- Send the package by certified mail or upload it through the portal.
What services are available online?
| Service | Typical Turn‑around | Link |
|---|---|---|
| Parcel Search | Instant | Parcel Search |
| Tax Estimator | Instant | Tax Estimator |
| Appeal Submission | 48 hours acknowledgment | Appeal Portal |
| Primary Residence Application | Same‑day receipt | Residence Form |
Can I get assistance using Bon Homme County’s online tools?
Yes. The office offers a weekly “Live Help” session on Tuesdays at 10:00 am via Zoom. Registration is free and limited to 25 participants. A recorded tutorial covering parcel lookup, tax estimation, and appeal filing is also available at https://bonhomme.sd.gov/assessor/tutorials.
Location & Map
Visit the Assessor’s Office for in‑person requests, printed maps, or to speak with a specialist. The building is centrally located in Tyndall, near the County Courthouse.
Frequently Asked Questions
The Bon Homme County Property Appraiser portal brings parcel‑level GIS maps, tax details, and ownership records together in one place. Residents can find a parcel, see its exact boundaries, and check the latest assessment without leaving home. The system updates after each field survey and once a year when the tax roll is set. Below are the most common questions people ask about using the portal and interpreting the data.
How can I search a parcel using the Bon Homme County Property Appraiser portal?
Start at the portal’s home page and enter the parcel number or address in the search box. Next, click the “Search” button. The map zooms to the selected parcel and shows a pop‑up with the parcel ID, owner name, and assessed value. Then you can toggle layers such as “Tax boundaries” or “Land use” to view extra details. Finally, use the “Print” button to save a PDF of the map for any purpose.
What tax information appears on a Bon Homme County GIS parcel map?
The GIS map displays the current tax roll for each parcel. When you click a parcel, a panel lists the total taxable value, the amount of property tax due, and any exemptions that apply. For example, a homeowner may see a homestead exemption reducing the taxable amount. The panel also shows the tax year and the payment deadline, so you can plan ahead.
Where do I find Bon Homme County land parcel maps for a specific address?
Enter the address in the portal’s “Address Lookup” field. The system matches the address to the nearest parcel and opens the land parcel map automatically. You can then turn on the “Legal description” layer to read the lot dimensions and neighboring streets. The map also highlights flood zones and zoning districts, which helps when evaluating building plans.
How does the Bon Homme County GIS property system show property boundaries?
The system uses the latest survey data to draw precise lines around each parcel. When you select a parcel, the boundary is highlighted in bright blue. You can switch to the “Aerial view” layer to compare the line with satellite imagery. The map includes a scale bar, so you can measure the length of any side directly on the screen.
Can I download the Bon Homme County parcel data for a home assessment?
Yes. After locating the parcel, click the “Download” icon in the toolbar. Choose the format you need—CSV for spreadsheets or shapefile for GIS software. The file contains the parcel ID, owner name, assessed value, and boundary coordinates. You can then import the data into a personal spreadsheet to track changes over time.
Who should I contact if a Bon Homme County parcel map shows incorrect ownership?
First, verify the parcel number and address against the county’s tax roll. If the information still looks wrong, call the Property Appraiser’s office at the phone number listed on the portal’s “Contact Us” page. Provide the parcel ID and a brief description of the error. The staff will review the record, correct any mistake, and update the GIS map within a few business days.