New Homes, New Households
Many Harrisburg returns belong to people in the middle of a change: a first house in a new subdivision, a previous house sold in Sioux Falls or another state, a new baby or a new job. Other clients are long-time residents and farm families whose land is now worth far more as housing. South Dakota has no income tax, so the federal return is the main filing. BOMCAS prepares personal returns for Harrisburg households remotely.
For residency rules and federal basics across the state, read our South Dakota personal tax page; below are the home purchases, sales and land deals common in Harrisburg.
First-Time Buyers
A house purchase brings a closing statement with points, prepaid interest and property tax. Points paid on a mortgage to buy your main home are usually deductible in the year paid if you itemise. With a higher standard deduction, many Harrisburg buyers will not itemise, and we compare both. Keep the closing statement and records of improvements, which add to the home's cost for a future sale.
Selling the Previous Home
Families moving up from a starter home can usually exclude up to $250,000 of gain, or $500,000 for a married couple, if they owned and lived in the house for at least two of the five years before the sale. A sale after a shorter stay may still qualify for a partial exclusion if the move was due to a job change, health or other unforeseen circumstances. Families who rented the old house before selling should check how much of the gain is still excludable.
Teachers, Nurses and Shift Workers
Harrisburg's households include teachers in the Harrisburg and Sioux Falls districts, nurses and staff at the metro area's hospitals and workers at plants and warehouses across the metro. Teachers can deduct up to $300 of classroom expenses. Shift workers paid overtime may benefit from the new federal deduction for qualified overtime pay for 2025 through 2028, which requires the overtime premium to be reported correctly.
New Parents
A new child brings the child tax credit, possible dependent care credits, and a new Social Security number to add to the return. Parents who adopted can claim the adoption credit for qualified expenses. Recent federal law also created a new tax-advantaged savings account for children, and we can review whether it suits your family.
Landowners Selling to Developers
Farm families and longtime landowners around Harrisburg are selling ground for housing. A sale held as an investment usually produces long-term capital gain. Taking payments over several years through an installment sale can spread the gain, and reinvesting in other real estate through a like-kind exchange can defer it. Inherited land has a basis equal to its value at death, which can greatly reduce the gain.
School District Questions
Some families have a Sioux Falls address but children in the Harrisburg School District. This does not change federal tax, but it affects property tax levies and school-related questions, so we note it when reviewing property tax statements.
What to Bring
- W-2s and 1099s.
- Closing statements for homes bought or sold.
- Mortgage and property tax statements.
- Child care and adoption expenses.
- Land sale contracts and appraisals.
- Last year's returns.
Energy Improvements
Owners who added solar panels, heat pumps, insulation or new windows should check which federal home energy credits applied in the year of installation, since several were ended for property placed in service after 2025. Receipts and manufacturer certifications support the claim.
Households with two working parents should also review withholding after a move or a new baby, so refunds or balances due are not a surprise in April.
Harrisburg Personal Tax Preparation Questions
Can I deduct points on my new mortgage?
Usually yes, in the year paid, if you itemise and the loan was to buy your main home.
Do I owe tax on selling my old house?
Usually not on gains up to $250,000, or $500,000 for couples, if you lived there two of the last five years.
How is selling farmland to a developer taxed?
Usually as a long-term capital gain if held as an investment. Installment sales and like-kind exchanges can spread or defer the tax.
Can teachers deduct classroom supplies?
Yes, up to $300 of qualified expenses.
Talk to BOMCAS About Personal Tax Preparation in Harrisburg
Owners need the business return and books first. A nanny goes through payroll, a home service business collects sales tax, a land sale belongs in planning, missed years in late filing, and newcomer families can read about cross-border tax. For the rest of the state, our South Dakota pages on business tax, sales and use tax, bookkeeping, payroll, tax planning, back taxes and late filing and cross-border tax are reached through the South Dakota overview.
Let BOMCAS know about your Harrisburg business or household and we will reply with next steps and what we need for a quote. Use the contact page or the form below, phone 780-667-5250 or email info@bomcas.ca. Every Harrisburg service is on the Harrisburg overview. This page is general information, not advice for your situation.