Business Returns for Northeastern South Dakota
Aberdeen companies sell to a trade area that covers much of northeastern South Dakota and reaches into North Dakota. Their customers are farmers, ranchers, hospitals, factories and the households that depend on them, and their year often follows the crop cycle. South Dakota does not tax business income, so the federal return is the main annual income tax filing. That return must agree with the sales, excise and payroll filings made during the year, and for firms working north of the state line, North Dakota may require a return as well. BOMCAS prepares business returns for Aberdeen companies remotely and checks those connections before filing.
Entity choices and the statewide filing calendar are set out in our South Dakota business tax guide. Below are the issues particular to Aberdeen's farm suppliers, plants and practices.
Agricultural Businesses
Agriculture shapes Aberdeen more than any other industry. Agtegra Cooperative, headquartered in the city, is owned by nearly 6,900 farmers and ranchers, and around it are equipment dealers, seed and chemical retailers, custom applicators, grain haulers, livestock operations and a beef processor.
Dealers and input suppliers
Equipment dealers carry large inventories financed through floor-plan lines, take trade-ins and sell parts and service. Seed and chemical sellers take prepayments in the winter for spring delivery. Their returns depend on inventory valuation, the timing of prepayments and rebates, and accurate separation of sales tax, farm machinery excise tax and exempt agricultural sales from revenue.
Co-op patrons and producers
Farm businesses that buy from or sell through a cooperative receive patronage dividends, some in cash and some as retained equities. These must be reported correctly, and the cooperative's pass-through deduction under section 199A(g) can flow to patrons. We read the co-op's year-end notices before preparing the return.
Manufacturers
Aberdeen's manufacturing base includes large plants such as 3M's respirator and filtration operation and Hub City's gear drive works, along with fabricators, machine shops and suppliers. Their returns involve inventory costing, depreciation of production equipment, the research credit for engineering work, and the immediate deduction for domestic research costs that the 2025 federal tax law restored. Suppliers to larger plants also need receivables and contract terms reflected properly at year end.
Health Care and Professional Practices
With Avera St. Luke's and Sanford Aberdeen in the city, Aberdeen supports many independent clinics, dental practices, therapy providers, pharmacies and senior living businesses. Their returns typically involve S corporations or partnerships, reasonable compensation for owner-practitioners, equipment and buildings, and the separate treatment of taxable retail sales from exempt health services.
Contractors and Hospitality
Builders working on homes in Aberdeen need a city residential contractor licence and a South Dakota excise tax licence, and their federal return should reconcile to the excise tax reported by project. Hotels, restaurants and outfitters busy during pheasant season and Northern State events need lodging and gross receipts taxes kept out of revenue, and hotels in Business Improvement District No. 2 must treat the $2 nightly charge as collected for the district rather than as room income.
North Dakota Filings
North Dakota taxes corporate and individual income. An Aberdeen corporation with property, payroll or enough sales in North Dakota may need to file a North Dakota corporate income tax return and apportion its income. Partnerships and S corporations with North Dakota income generally file a North Dakota return and either withhold for nonresident owners or file a composite return. North Dakota's individual rates for 2026 range from 0 percent on the first portion of taxable income to 2.5 percent at the top, so the amounts may be small, but the filing still matters. We determine which North Dakota filings are needed before completing the federal return.
Reconciling Aberdeen's Local Taxes
We compare the year's revenue with the gross receipts reported on the South Dakota sales tax returns, confirm the 2 percent city tax and the 1 percent gross receipts tax were recorded as liabilities, and check that hotel BID charges and any downtown district occupation tax are recorded correctly. The downtown tax is an annual cost of a property in the district, based on its footprint, and is deductible as a business expense for property used in the business.
Federal Items We Review
- Depreciation, section 179 and bonus depreciation on machinery, buildings and vehicles.
- Inventory accounting and the small business exceptions.
- Patronage dividends and the section 199A deductions for co-op patrons.
- The qualified business income deduction for pass-through owners.
- Owner pay in S corporations.
- 1099 reporting for subcontractors, custom operators and landlords.
Working With Us
Send us the year's books, bank and loan statements, sales tax returns, payroll reports, co-op notices and last year's return through our secure portal. We review everything, send one set of questions, prepare the federal and any North Dakota returns, and go through the results with you before filing.
Aberdeen Business Tax Preparation Questions
Does an Aberdeen business file a South Dakota income tax return?
No. South Dakota has no business or personal income tax, so the annual income tax return is federal. Sales, excise and payroll returns and the Secretary of State annual report are still required.
How are co-op patronage dividends reported?
Cash patronage and qualified written notices of allocation are generally taxable when received, and per-unit retains are reported as directed by the cooperative. Patrons may also receive a pass-through section 199A(g) deduction shown on the co-op's notice.
Do I need a North Dakota return?
If your business has property, payroll or sales in North Dakota, or earns income from work done there, it may need a North Dakota income tax return. We review your activities to decide.
Is the downtown improvement district tax deductible?
For property used in your business, the annual downtown district occupation tax is generally a deductible business expense.
Talk to BOMCAS About Business Tax Preparation in Aberdeen
A business return is only as good as the monthly books and payroll filings behind it, and the sales and excise tax returns should agree with reported revenue. Owners usually have their household returns prepared at the same time, and once the year is filed it becomes the starting point for planning the next one. Years that were never filed are dealt with through catch-up filing, and companies buying from or owned in Canada should look at cross-border tax. Across South Dakota, we also explain personal returns, sales tax, bookkeeping, payroll, planning, back taxes and Canada–U.S. tax on our state pages, which start from the South Dakota overview.
Tell us a little about your Aberdeen business or household and BOMCAS will reply with next steps and what we need to quote. Reach us through the contact page or the form below, by phone at 780-667-5250 or by email at info@bomcas.ca. You can also go back to the Aberdeen overview to compare services. This page is general information and is not advice for your own situation.