Expert Tax Preparation Services in St. Louis & Across Missouri

Tax laws change every year, but one thing remains constant: paying more tax than you legally owe hurts your financial future. Whether you are an individual taxpayer looking to maximize your refund or a small business owner seeking strategic tax preparation, STL Tax provides accurate, reliable, and stress-free income tax filing.

Led by St. Louis CPA James Coats, our firm serves clients throughout the Greater St. Louis area—including South County, West County, St. Charles, and Jefferson County—as well as remote individuals and businesses across the state of Missouri.

Comprehensive Tax Filing Services

Small Business Tax Preparation

Preparing small business taxes requires specialized knowledge of entity structure, write-offs, and compliance rules. We handle tax preparation for all business types:

  1. S-Corporations (Form 1120-S): Maximize tax savings with strategic officer compensation and distributions.
  2. LLCs & Partnerships (Form 1065): Accurate pass-through reporting and multi-member allocations.
  3. Sole Proprietors & Freelancers (Schedule C): Comprehensive deduction discovery for self-employed individuals.
  4. Rental Property Owners (Schedule E): Depreciation calculations, expense tracking, and passive loss rules.

Looking for Year-Round Peace of Mind? Tax preparation is only the final step. Pair your business tax filing with our Small Business Bookkeeping and Payroll Services to streamline your back office and unlock ongoing tax savings all year long.

Individual Tax Preparation

From straightforward returns to complex financial situations, we help individuals across Missouri minimize tax burdens and secure the largest legal refund possible.

  1. Federal & Missouri State Tax Return Filing
  2. Multi-State Income Returns
  3. Investment, Capital Gains, and Crypto Tax Reporting
  4. Prior-Year Unfiled Tax Returns & Error Correction

How Our Tax Preparation Process Works

  1. Document Gathering: Download our convenient [2026 Tax Preparation Checklist] to organize your tax documents, W-2s, 1099s, and expense receipts.
  2. Detailed Review & Q&A: We ask the right questions to unearth deductions specific to your lifestyle, industry, or business model.
  3. Preparation & Quality Check: CPA James Coats prepares and reviews your return for accuracy and compliance.
  4. E-Filing & Direct Deposit: We securely e-file your returns with the IRS and Missouri Department of Revenue for fast refund processing.

Frequently Asked Questions

Do you prepare taxes for clients outside of St. Louis?

Yes. While our physical office is located in South County St. Louis (8128 Gravois Rd), we securely work with individuals and business owners across the entire state of Missouri via our digital document portal.

Can tax preparation lead into year-round accounting support?

absolutely. Many of our small business clients start with annual tax preparation and transition into monthly bookkeeping, payroll, and quarterly tax planning retainers to keep their finances optimized year-round.

What should I bring to my tax preparation appointment?

You will need identification, government tax documents (W-2, 1099, 1098), income records, and documented lists of potential deductions. Review our Tax Prep Checklist for a complete breakdown.

Schedule Your Tax Preparation Consultation Today

Don’t leave your hard-earned money to chance. Contact St. Louis CPA James Coats at STL Tax to schedule your tax preparation appointment.