Local, State & Federal Tax Services in South Dakota | IRS & State Audit Representation

Professional Tax Preparation & Accounting Services for Individuals and Businesses | Z Tax & Accounting

Z Tax & Accounting proudly serves individuals, entrepreneurs, and businesses across South Dakota with expert Local, State, and Federal Tax Services. From strategic tax planning and preparation to audit defense and compliance, our firm ensures your financial filings are accurate, timely, and optimized for every allowable deduction.

Whether you’re a small business owner in Sioux Falls, a rancher near Rapid City, or a professional operating across multiple states, our experienced team helps you navigate both IRS and South Dakota Department of Revenue requirements with confidence and peace of mind.

Comprehensive Tax Services Tailored for South Dakota

1. Local Tax Services in South Dakota

South Dakota does not levy a local income tax, but it does impose several local sales, use, and municipal taxes that can impact businesses. Z Tax & Accounting provides full support for:

• Sales and Use Tax compliance for retailers, service providers, and contractors
  
  

• Municipal tax filings for cities like Sioux Falls, Rapid City, Aberdeen, and Brookings
  
  

• Excise and contractor tax reporting for construction and manufacturing sectors
  
  

• Local business registration and license assistance
  
  

Our accountants ensure that your transactions are properly classified and reported to avoid penalties or compliance issues at the municipal level.

2. South Dakota State Tax Services

While South Dakota is known for having no personal or corporate income tax, the state enforces a strong sales and use tax system, along with specific taxes on businesses, banks, and insurance companies. Z Tax & Accounting provides specialized services to help you stay compliant and efficient in managing state-level taxes.

For Individuals:

Even without a state income tax, South Dakota residents often face other filing obligations such as:

• Federal income tax filings and estimated payments
  
  

• Multi-state reporting for residents working or investing across state lines
  
  

• Property and inheritance tax planning
  
  

• Assistance with state-issued notices or business-related obligations
  
  

For Businesses:

Our South Dakota business tax experts assist with all types of state-level filings, including:

• Sales and Use Tax (Form 5090)
  
  

• Contractor’s Excise Tax (Form 910)
  
  

• Bank Franchise Tax filings
  
  

• Insurance Premium Tax compliance
  
  

• Employer payroll and withholding tax setup (for multi-state businesses)
  
  

• Business registration with the South Dakota Department of Revenue
  
  

We ensure accurate filings and provide strategic advice to minimize state-level liabilities while maintaining compliance with South Dakota’s tax laws.

3. Federal Tax Preparation & Filing Services

At Z Tax & Accounting, we deliver professional Federal Tax Services for both individuals and businesses across South Dakota. Our experienced preparers ensure that your IRS filings are accurate, compliant, and optimized for every eligible deduction and credit.

For Individuals (IRS Form 1040):

• W-2 and 1099 income reporting
  
  

• Self-employment and contractor tax filing
  
  

• Deductions and credits (education, home office, dependents, retirement)
  
  

• Estimated tax calculations and payment scheduling
  
  

• Amended returns and prior-year corrections
  
  

For Businesses:

• C Corporation (Form 1120) and S Corporation (Form 1120-S) filings
  
  

• Partnership and LLC (Form 1065) returns
  
  

• Sole Proprietor and Independent Contractor (Schedule C) reporting
  
  

• Depreciation, equipment, and asset tax optimization
  
  

• Quarterly estimated payments and payroll tax compliance
  
  

Our team ensures your business remains fully compliant with federal tax law while identifying savings and strategies to improve your bottom line.

IRS & South Dakota Department of Revenue Audit Representation

IRS Audit Representation

If you receive an IRS audit notice, Z Tax & Accounting provides full-service IRS audit representation to protect your rights and handle all communication directly with the IRS on your behalf.

Our IRS audit defense services include:

• Review of IRS notices, prior filings, and related documentation
  
  

• Representation for correspondence, office, and field audits
  
  

• Negotiation of settlements, penalty abatement, and installment agreements
  
  

• Filing of amended returns and appeals as needed
  
  

Our goal is to resolve the audit quickly and minimize any tax liability or penalties.

South Dakota Department of Revenue Audit Representation

The South Dakota Department of Revenue (SDDOR) frequently conducts audits of sales, excise, and use taxes. These reviews can be complex and require detailed documentation. Z Tax & Accounting assists both individuals and businesses throughout the entire audit process.

We provide:

• Audit risk assessment and documentation review
  
  

• Representation before the SDDOR
  
  

• Reconciliation of sales and purchase records
  
  

• Response and appeal preparation for state audit findings
  
  

With professional representation, we ensure your interests are safeguarded and the audit process is handled efficiently.

Year-Round Tax Planning & Financial Advisory

Tax preparation is just one part of maintaining financial health. Z Tax & Accounting offers year-round tax planning and advisory services for individuals and businesses across South Dakota.

Our proactive approach includes:

• Multi-state income and business tax strategy
  
  

• Retirement and investment planning
  
  

• Business entity formation and tax structuring
  
  

• Asset depreciation and capital gain planning
  
  

• IRS correspondence and notice resolution
  
  

• Estate and succession tax consulting
  
  

By planning ahead, we help you reduce tax liabilities, maintain compliance, and keep more of your earnings.

Why South Dakota Clients Trust Z Tax & Accounting

Z Tax & Accounting is dedicated to providing transparent, accurate, and client-focused tax services. We understand the unique tax environment in South Dakota and deliver reliable solutions that support your financial goals.

Our Advantages:

• Licensed and experienced tax professionals
  
  

• Expertise in South Dakota sales, excise, and federal tax systems
  
  

• Secure online document sharing and e-signature technology
  
  

• Year-round availability and personal guidance
  
  

• Serving individuals, small businesses, and corporations across South Dakota
  
  

We proudly serve clients in Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, and Pierre, providing trusted tax and accounting support for local and multi-state needs.

Get Professional Tax Help in South Dakota

Simplify your tax process and ensure compliance with expert guidance from Z Tax & Accounting. Our firm provides dependable Local, State, and Federal Tax Services, as well as professional IRS and South Dakota Department of Revenue audit representation.

📞 Contact Z Tax & Accounting today to schedule your consultation and to get started securely online.

Let our experienced professionals handle your taxes while you focus on growing your business and achieving financial success.

 South Dakota Department of Revenue

Physical address:

445 East Capitol Ave.

Pierre , SD 57501

Phone: 1-800-829-9188 or 605-773-3311

Fax: 605-773-6729

Email: bustax@state.sd.us