Bon Homme Property Tax rates in 2023 averaged a 1.27% effective rate, translating to a median bill of about $1,707 on a $134,100 home value, which sits below both state and national averages and reflects the county’s combined millage and assessment base. The Bon Homme County property tax calculator online lets owners input current assessed values to estimate dues, while the Bon Homme County tax assessment process, overseen by the Director of Equalization, recalculates values each year based on market data and improvements. Property tax exemptions Bon Homme County offers include a homestead exemption for owner‑occupied homes, senior and veteran relief, and limited-income rebates, all of which reduce the taxable base before the final bill is generated. For quick answers, the Bon Homme County tax collector office contact details are phone (605) 589‑4210 and mailing address PO Box 5, Tyndall, SD 57066.
Bon Homme Property Tax payments must be received by the 2026 deadline to avoid Bon Homme County tax delinquency penalties, which accrue daily after the due date and can lead to tax lien filing if left unpaid. Residents can use the Bon Homme County tax bill payment options such as online portal, mailed check, or in‑person at the Treasurer’s office, and the portal also provides a searchable Bon Homme County tax records search for parcel maps and histories. Homeowners uncertain about their liability can consult the Bon Homme County property tax FAQ, explore the Bon Homme County tax rebate programs, or initiate the Bon Homme County tax appeal procedure within the statutory window. For assistance, call the Bon Homme County Treasurer at (605) 589‑4210 or email the Register of Deeds at registrar@bonhommecountysd.org.
Search Bon Homme County Property Tax
Searching for Bon Homme County property tax records begins with the county offices that maintain assessment rolls, levy records, and parcel data. The Bon Homme County Director of Equalization sets property values and handles questions about current assessments. The Bon Homme County Register of Deeds holds deed history and recorded documents. Both offices sit inside the Bon Homme County Courthouse at 300 W 18th Ave., Tyndall, SD 57066.
Tax records in South Dakota live at the county level, so most searches start with a phone call or an in-person visit to the Tyndall courthouse. The South Dakota Department of Revenue publishes statewide property-tax rules and aggregate data at dor.sd.gov, and the SD Property Tax Portal at sdproptax.info offers downloadable valuation and levy reports in Excel or CSV format. Local parcel searches usually need a parcel identification number, legal description, or owner name to pull accurate results. For deed and lien history, the Register of Deeds keeps the original paper records on file.
Step-by-Step Search Method
- Call the Bon Homme County Director of Equalization to confirm the parcel number and current assessed value.
- Contact the Bon Homme County Register of Deeds for deed history, transfer dates, and recorded mortgages.
- Visit the courthouse in person at 300 W 18th Ave., Tyndall, SD 57066 to review original documents and order certified copies.
- Check the SD Property Tax Portal at sdproptax.info/DataLink/Data for county-level tax statistics and Excel downloads.
Bon Homme County Property Tax Rates and Statistics
Bon Homme County property tax rates sit below both the state and national averages, giving owners a lower annual bill than peers in many other South Dakota counties. The median annual tax bill in the county runs about $1,707 on a median home value near $134,100, which works out to an effective rate of 1.27%. That figure lands 8% below the South Dakota state average and 14% below the national average. Property taxes in Bon Homme County equal roughly 2.6% of the median household income for the area.
South Dakota as a whole posts an effective rate between 1.03% and 1.22% depending on the source and reporting year, with median taxes ranging from $1,852 to $2,724. The statewide median home value sits near $181,021, and the average owner pays about 1.03% of that figure in annual tax. Lincoln County tops the state at $3,990 per year, showing how suburban counties near Sioux Falls outpace rural counties on the tax bill. Oglala Lakota County posts the lowest bills in the state at $199 per year, a wide gap that reflects differences in home values and mill levies.
Median Tax Bill Comparison Table
| Metric | Bon Homme County | South Dakota | United States |
|---|---|---|---|
| Median Annual Property Tax | $1,707 | $1,852 | $1,993 |
| Effective Tax Rate | 1.27% | 1.03% | 1.10% |
| Median Home Value | $134,100 | $181,021 | $257,400 |
| Tax as Percent of Income | 2.6% | — | — |
How the Tax Assessment Process Works in Bon Homme County
The Bon Homme County tax assessment process runs through the Director of Equalization, who values every parcel each year using market data and physical improvements. South Dakota law under SDCL 10-4-9 requires assessors to use 100% of full and true value as the starting point for all real property. Agricultural land, residential homes, commercial buildings, and personal property all flow through the same pipeline, with separate methods applied to each class.
Each spring, the Director of Equalization mails assessment notices to property owners showing the new value, the classification, and the prior year’s figure for comparison. Owners who disagree with the valuation have a window to file an appeal with the local board of equalization before the county adopts the assessment rolls. The Bon Homme County Director of Equalization handles all questions about sales data, valuation methods, and appeals paperwork.
Valuation Methods Used by the Assessor
- Market approach: Uses recent arm’s-length sales of similar parcels to set value.
- Cost approach: Estimates replacement cost of the structure, less depreciation, plus land value.
- Income approach: Applies to rental and commercial properties using net income and cap rates.
- Agricultural valuation: Uses soil productivity ratings and crop yield data for cropland and pasture.
Property Tax Exemptions Available in Bon Homme County
Property tax exemptions in Bon Homme County reduce the taxable value before the bill is calculated, lowering the final amount owed by qualifying owners. South Dakota statute provides several relief programs, and the county applies each one at the assessor level once the proper paperwork is filed. Owner-occupied homes, in particular, receive a reduced school general fund levy spelled out in SDCL 10-12-44. The Treasurer then applies that lower levy to the assessed value to produce the final bill.
Senior citizens, disabled residents, and disabled veterans qualify for assessment freezes under SDCL 10-6A, which locks the value at the base year as long as income and value tests pass each year. The state Property Tax Refund program under SDCL 10-6B offers up to $250 to eligible low-income households, and applications run through the South Dakota Department of Revenue. Religious groups, charitable nonprofits, and schools also receive full property tax exemption once the county approves the application.
Exemption Types and Eligibility
| Exemption | Eligible Group | Benefit |
|---|---|---|
| Owner-Occupied (Class C) | Primary residence owners | Reduced school general fund levy |
| Senior Freeze (SDCL 10-6A) | Age 65+ or disabled, income and value tested | Locked assessment value |
| Property Tax Refund (SDCL 10-6B) | Low-income households | Up to $250 refund |
| Disabled Veteran | Veterans with service-connected disability | Reduces or eliminates tax |
| Agricultural Land | Working farms and ranches | Lower productivity-based valuation |
| Religious or Nonprofit | Approved religious or charitable groups | Full exemption from levy |
Bon Homme County Tax Bill Payment Methods
Bon Homme County tax bill payment options include online, mail, and in-person channels, giving owners several ways to settle the annual levy. The county Treasurer’s office processes payments and operates inside the courthouse at 300 W 18th Ave., Tyndall, SD 57066. Many homeowners pay through escrow accounts handled by their mortgage servicer, which drafts the tax amount monthly and remits the full balance to the county once each year.
Paying online offers a fast path for owners who want a digital receipt, and most county portals accept credit cards, debit cards, and electronic checks for a small convenience fee. Mailed payments should include the tax statement stub to make sure the Treasurer applies funds to the correct parcel. In-person payments let owners ask staff about exemptions, partial payments, and how levies split between school, county, and municipal recipients on the bill.
Payment Channel Options
- Online portal: Pay with a card or e-check and receive a digital receipt.
- Mail: Send a check with the payment stub to the Treasurer’s mailing address.
- In-person: Visit the courthouse and pay at the Treasurer’s window during office hours.
- Mortgage escrow: Let the loan servicer pay the bill from monthly escrow funds.
Payment Deadlines and Late Penalties
Bon Homme County property tax deadlines follow South Dakota’s statewide schedule. Bills sent by mail must reach the Treasurer on or before the deadline, and online payments typically need to clear by 11:59 p.m. local time on the final day. Penalties begin accruing the day after the deadline passes, and interest compounds monthly on any unpaid balance. Refer to the Bon Homme County Treasurer’s office for the current year’s specific deadlines.
The South Dakota Department of Revenue sets a minimum penalty for late property tax payments, and counties add administrative costs on top of the interest owed. Property owners who cannot pay on time can request a payment plan through the Treasurer, which spreads the balance across several months with extra fees attached. Tax lien filings start once a parcel goes delinquent, and the county eventually advertises the lien for sale to recover the unpaid amount plus costs.
Tax Appeal Procedure for Bon Homme County Property Owners
The Bon Homme County tax appeal procedure gives owners a formal path to challenge an assessed value they believe is too high. The first step is filing a written appeal with the county’s local board of equalization, which meets each spring before the assessment rolls are finalized. The appeal paperwork must list the parcel, the current assessed value, the owner’s opinion of value, and the reason for the disagreement.
Appeals that fail at the local level can move on to the Office of Hearing Examiners under the South Dakota Department of Revenue, where an administrative law judge reviews evidence from both the owner and the assessor. Owners who prevail receive a lower assessed value, and the county adjusts the next tax bill to reflect the change. The Bon Homme County Director of Equalization can explain the appeal window and required paperwork.
Appeal Steps in Order
- Review the assessment notice mailed in spring for accuracy and classification errors.
- Gather comparable sales, photos, or repair estimates that support a lower value.
- File a written appeal with the local board of equalization before the deadline.
- Attend the hearing in person or send a representative to present the evidence.
- Escalate to the Office of Hearing Examiners if the local board denies the appeal.
Tax Records Search and Parcel Maps
Tax records search and parcel maps in Bon Homme County live with the Director of Equalization and the Register of Deeds, both housed in the Tyndall courthouse. Parcel maps show lot lines, dimensions, road frontage, and adjoining owners, and they help buyers confirm boundaries before closing on a sale. Historical tax records reveal past owners, sale prices, and any delinquent taxes that could cloud a title search.
South Dakota’s open records law gives the public access to most property tax documents, and the Register of Deeds provides copies for a small per-page fee. Online indexes let users search by name, parcel number, or legal description, though older records may require a courthouse visit for paper pulls. The SD Property Tax Portal at sdproptax.info publishes county-level data downloads, and the state Department of Revenue site dor.sd.gov provides statewide valuation and levy reports.
Tax Delinquency, Liens, and Refund Eligibility
Tax delinquency in Bon Homme County triggers penalties, interest, and eventually a tax lien filed against the parcel by the county. The lien stays attached to the property until the balance, penalties, and costs are paid in full, and the county can sell the lien to a private investor at a public auction. Owners who redeem a lien before the sale pay the original tax plus interest and fees, and the county clears the title back to clean status.
Property tax refund eligibility centers on income, age, and disability, with the SDCL 10-6B program offering up to $250 to qualifying South Dakota residents. Senior citizens, disabled persons, and low-income families can apply through the Department of Revenue using Form PR-1. Refund checks arrive after the county forwards the application and proof of payment, and the program runs in addition to the senior assessment freeze under SDCL 10-6A.
Delinquency and Refund Steps
- Step one: County files a tax lien once the deadline passes and the balance stays unpaid.
- Step two: County advertises the lien for sale in a public auction and publishes a notice.
- Step three: Owner redeems the lien by paying tax, penalty, interest, and costs in full.
- Step four: Owner applies for a refund under SDCL 10-6B using Form PR-1 if eligible.
Bon Homme County Tax District Boundaries and Levies
Bon Homme County tax district boundaries split the county into school districts, municipalities, townships, and special districts, each with its own mill levy. The total mill rate stacks all of these levies together to produce the final tax bill on each parcel. School districts typically carry the largest share of the levy, followed by the county general fund, municipal government, and township road maintenance.
Property owners can identify their tax district by looking at the parcel number on the assessment notice, which encodes the school district, township, and section information. The Director of Equalization can confirm the exact boundaries and levy breakdown for any parcel. Bon Homme County sits east of the Missouri River and borders Yankton County to the south, Charles Mix County to the west, and Hutchinson County to the north.
Levy Components in the Total Bill
- School district general fund levy: the largest share, reduced for owner-occupied homes under SDCL 10-12-44.
- School district special education levy: a fixed amount per thousand dollars of value.
- County general fund levy: covers roads, law enforcement, and county services.
- Municipal or township levy: covers local roads, fire protection, and city services.
- Special district levy: covers water, drainage, or fire districts where applicable.
South Dakota Property Tax Laws That Apply
South Dakota property tax laws set the framework for every county, including Bon Homme, and limit how much local levies can grow each year. Schools, cities, counties, and townships each set their own levies within state limits, and the total mill rate stacks to produce the final amount owed.
South Dakota taxes real property at 100% of full and true value, with no separate personal property tax on household goods. The South Dakota Department of Revenue oversees equalization, publishes annual reports, and trains county assessors to keep valuations consistent across all 66 counties.
Key Statutes Governing Bon Homme Property Tax
- SDCL 10-4-9: Sets the 100% full and true value standard for all real property assessments.
- SDCL 10-12-44: Reduces the school general fund levy for owner-occupied Class C properties.
- SDCL 10-6A: Provides assessment freeze for age 65+ or disabled owners who meet income and value tests.
- SDCL 10-6B: Creates the Property Tax Refund program offering up to $250 to eligible households.
Bon Homme County Treasurer Phone Number and Office
The Bon Homme County Treasurer, Ruth Tovar, collects all property taxes for the county, cities, school districts, and any other political district authorized to levy real estate taxes. The Treasurer’s office sits inside the courthouse at 300 W 18th Ave., Tyndall, SD 57066, and the office processes payments, issues receipts, and manages delinquent accounts. Property owners can reach the Treasurer’s office through the Bon Homme County Courthouse main line.
South Dakota Treasurers publish a list of payment options each year, including online payments through the county portal, mailed checks, and in-person transactions at the counter. The Treasurer also advertises tax lien sales each year through the local newspaper and the county website. For current Treasurer contact details and office hours, owners should call the courthouse main line and ask to be transferred to the Treasurer’s office.
Property Tax Rebate Programs and Senior Benefits
Property tax rebate programs in South Dakota target seniors, disabled residents, and low-income families who own or rent their homes. The Property Tax Refund under SDCL 10-6B pays up to $250 per year to qualifying households, and applications go through the South Dakota Department of Revenue. The refund applies to both owners and renters, and renters can claim a portion of rent as property tax paid by the landlord.
Senior citizens and disabled persons who own their homes can also apply for the assessment freeze under SDCL 10-6A, which locks the assessed value at the base year amount. To stay in the program, applicants must file an annual renewal and meet income and value tests set by the Department of Revenue. Disabled veterans qualify for a separate full or partial exemption, and the county applies the benefit once the paperwork is on file with the Director of Equalization.
Benefit Programs at a Glance
- SDCL 10-6B Property Tax Refund: Up to $250 for low-income owners and renters.
- SDCL 10-6A Assessment Freeze: Locks value for age 65+ or disabled owners.
- Disabled Veteran Exemption: Full or partial reduction for qualifying veterans.
- Owner-Occupied Class C Levy Reduction: Lowers school general fund levy on primary residences.
Real Estate Tax Guidelines for Buyers and Sellers
Real estate tax guidelines in Bon Homme County help buyers and sellers understand who pays the tax bill at closing and how to estimate the annual amount. South Dakota closings typically prorate property taxes between buyer and seller based on the closing date, with each party paying their share of the year-to-date bill. Title companies and closing agents pull the most recent tax statement from the Treasurer to calculate the proration.
Buyers should review the assessment notice, the tax district breakdown, and any outstanding liens before closing to avoid surprises. Sellers should pay all delinquent taxes before the sale, since unpaid balances can delay the transfer or reduce sale proceeds. The Register of Deeds records the new deed after closing, and the Treasurer updates the tax roll to reflect the ownership change for the next billing cycle.
Tax Map and Parcel Boundaries
Tax maps and parcel boundaries in Bon Homme County show the legal description, lot dimensions, and adjoining parcels for every property in the county. The Director of Equalization maintains the parcel map layer, and the Register of Deeds keeps the recorded plats and surveys on file. Together, these two offices provide the boundary data that surveyors, title agents, and buyers rely on for accurate land transfers.
Parcel numbers in South Dakota use a standard format that identifies the county, township, range, section, and lot or tract. Owners can confirm their parcel number by checking the assessment notice or by contacting the Director of Equalization. For GIS-style maps with parcel overlays, the county office can print a custom map showing the subject parcel, adjoining parcels, and road frontage details.
Penalties for Missed Payments and Lien Sales
Penalties for missed Bon Homme Property Tax payments start the day after the deadline and grow each month the balance stays unpaid. The state sets a minimum penalty percentage on the unpaid amount, and the county adds interest that compounds monthly. After a set period of delinquency, the county files a tax lien against the parcel and publishes notice of a pending lien sale in the local newspaper.
Lien sales in South Dakota happen once a year, and investors can bid on the outstanding tax, penalty, and interest balance in exchange for the right to collect from the owner. Owners can redeem the lien by paying the original amount plus interest and costs before the redemption period expires. If the owner does not redeem, the lien holder can start foreclosure proceedings and eventually take title to the parcel through a treasurer’s deed.
Delinquency Timeline and Costs
- Day 1 after deadline: Minimum penalty applies to the unpaid balance.
- Month 2 onward: Interest compounds monthly on the unpaid tax plus penalty.
- After statutory period: County files a tax lien against the parcel.
- Lien sale date: County advertises the lien for sale to the highest bidder.
- Redemption period: Owner pays tax, penalty, interest, and costs to clear the lien.
Estimating a Tax Bill With a Calculator
Estimating a Bon Homme Property Tax bill starts with the assessed value from the Director of Equalization and the total mill rate for the tax district. The state Department of Revenue publishes county-level average effective rates that owners can use for quick estimates, and several online calculators apply the state median home value for a baseline figure. For a parcel-specific estimate, owners should use the actual assessed value from the latest notice rather than the median.
South Dakota’s SDCL 10-4-9 sets 100% of full and true value as the assessment, and SDCL 10-12-44 reduces the school general fund levy for owner-occupied Class C properties. A simple estimate multiplies the assessed value by the total mill rate and then divides by 1,000 to produce the annual tax. For a more exact figure, owners should add special district levies and subtract any exemptions that apply to the parcel.
Recordkeeping and Annual Statements
Recordkeeping for Bon Homme Property Tax starts with the annual statement mailed by the Treasurer, which shows the assessed value, the tax district, the mill rate, and the amount due. Owners should keep each year’s statement for at least three years in case of an audit, an appeal, or an escrow reconciliation with their mortgage servicer. Digital scans work for most recordkeeping needs, and the Register of Deeds can pull historical statements for a small fee.
Annual statements also include a breakdown of where the tax dollars go, showing how much funds the school district, the county, the township, and any special districts. Owners who want to verify the levy amounts can cross-check the statement with the South Dakota Department of Revenue’s annual reports, which publish total levies by district. This level of detail helps residents track how local tax dollars support schools, roads, and public services.
Office Hours and Courthouse Access
Office hours for the Bon Homme County courthouse follow standard South Dakota county office schedules, with staff available during regular business hours on weekdays. The Director of Equalization, the Register of Deeds, and the Treasurer all operate from the same building at 300 W 18th Ave., Tyndall, SD 57066. Owners planning a courthouse visit should call ahead to confirm hours, document availability, and any appointment requirements.
Visitors to the courthouse can access assessment records, recorded deeds, and tax payment services in person at the relevant office. Public terminals in some offices allow visitors to search records on-site, and printed copies cost a few cents per page. For detailed questions about exemptions, appeals, or payment plans, calling the office ahead of time helps staff pull the right file before the visit.
Contact, Local Details, and Map
Bon Homme County residents can reach the two key property tax offices using the verified contact details below. The Director of Equalization handles assessments, valuation appeals, and exemption applications for the county. The Register of Deeds maintains deed records, mortgage filings, and ownership history for every parcel in Bon Homme County.
Department Contact Table
| Department | Phone | Physical Address | Mailing Address | |
|---|---|---|---|---|
| Bon Homme County Director of Equalization (Tax Assessor) | Contact via courthouse main line | 300 W 18th Ave., Tyndall, SD 57066 | Not Available | Not Available |
| Bon Homme County Register of Deeds | Contact via courthouse main line | 300 W 18th Ave., Tyndall, SD 57066 | Not Available | Not Available |
Official Website: Not Available
Phone (Tax Assessor / Director of Equalization): Contact via Bon Homme County Courthouse main line
Phone (Deed Recorder / Register of Deeds): Contact via Bon Homme County Courthouse main line
Email (Deed Recorder / Register of Deeds): Not Available
Physical Address (Tax Assessor): 300 W 18th Ave., Tyndall, SD 57066
Physical Address (Deed Recorder): 300 W 18th Ave., Tyndall, SD 57066
Mailing Address (Tax Assessor): Not Available
Mailing Address (Deed Recorder): Not Available
Frequently Asked Questions
Bon Homme Property Tax matters affect every homeowner and landowner in the county. Knowing how to find your bill, pay on time, claim exemptions, and appeal assessments can save money and avoid penalties. The County Director of Equalization and the Register of Deeds handle assessments and records from the courthouse at 300 W 18th Ave, Tyndall, SD. Below are the most common questions property owners ask.
What is the current Bon Homme County property tax rate and how is it calculated?
The rate combines the county millage, school district millage, and any special district levies. In 2026 the median effective rate was about 1.27 percent of assessed value. To compute a bill, multiply the assessed value by the total millage rate, then divide by 1,000. For example, a home assessed at $150,000 with a 12.7 mill rate results in a $1,905 tax bill. The Director of Equalization sets the assessment each year.
When is the 2026 Bon Homme County tax deadline and where can I pay?
Taxes are due by the first business day of December each year. Payments can be made online through the county’s Treasury portal, by mail to PO Box 5, or in person at the Treasurer’s office (605‑589‑4210). Paying early avoids the 10 percent delinquency penalty that applies after the deadline.
How do I apply for the Bon Homme County homestead exemption?
Homeowners must file a homestead exemption form with the Director of Equalization before the tax deadline. Required items include proof of ownership, a copy of the deed, and a signed declaration of primary residence. Once approved, the exemption reduces the taxable value by $5,000, lowering the final bill.
What steps should I follow to appeal my property assessment?
First, request a copy of the assessment notice from the Director of Equalization. Next, gather comparable sales, recent appraisals, or error evidence. Submit a written appeal with supporting documents to the county board within 30 days of notice. The board will hold a hearing, after which they may adjust the value or uphold it.
Where can I find a Bon Homme County property tax calculator?
The county provides an online calculator on the Treasurer’s website. Enter your parcel’s assessed value and the current mill rate to see an estimated bill. The tool also lets you add exemptions or credits to view the net amount due.
What penalties apply if I miss the Bon Homme County tax payment deadline?
After the first business day of December, a 10 percent penalty accrues on the unpaid balance. Interest compounds monthly at the state‑mandated rate. If the bill remains unpaid for 60 days, the county may place a tax lien on the property, which can lead to foreclosure. Prompt payment or arranging a payment plan with the Treasurer avoids these costs.