MO Tax & Accounting Services
Kurt Simmons CPA provides comprehensive tax and financial services to individuals and businesses throughout Missouri (MO). With its central logistics hub and diverse business economy, we understand the unique financial landscape that comes with doing business in Missouri.
Under the CPA Mobility Act, our CPA — licensed in Maryland, Delaware, and Florida — is authorized to provide the full range of attestation, tax, and advisory services to Missouri clients without the need for an additional state license. This means Missouri individuals and businesses receive the same comprehensive service as our home-state clients: financial statement audits, tax strategy, IRS representation, virtual CFO services, and every other service we offer — delivered through our technology-forward, virtual-first practice model.
CPA Services Available in Missouri (MO)
MO Individual Tax Preparation
Comprehensive federal and Missouri state tax return preparation, including complex returns with investments, rental properties, and self-employment income.
Learn More →MO Business Tax Services
Tax preparation and planning for Missouri-based businesses including S-Corps, C-Corps, partnerships, LLCs, and sole proprietorships.
Learn More →MO Cryptocurrency Tax
Specialized crypto tax services for Missouri investors and traders. DeFi, NFTs, staking rewards, and exchange reporting handled with expertise.
Learn More →MO Trader Tax Services
Mark-to-market elections, wash sale tracking, and tax optimization strategies for active traders in Missouri.
Learn More →MO IRS Resolution
Professional representation before the IRS for Missouri taxpayers facing audits, collections, liens, levies, or offers in compromise.
Learn More →MO 83(b) Elections
Equity compensation planning and 83(b) election filing for Missouri startup employees and founders receiving restricted stock.
Learn More →MO Financial Statement Audits
Full-scope GAAS-compliant financial statement audits for businesses, nonprofits, and organizations requiring independent assurance.
Learn More →MO Review Engagements
Limited assurance engagements providing meaningful confidence in financial statements for lender requirements and stakeholder reporting.
Learn More →MO Compilations
Professionally prepared financial statements from management-provided data for internal reporting, small business needs, and bank presentations.
Learn More →MO Agreed-Upon Procedures
Targeted, customized engagements designed to address specific areas of concern with flexible scope tailored to stakeholder needs.
Learn More →MO Employee Benefit Plan Audits
DOL-compliant audits for 401(k), pension, and employee benefit plans meeting ERISA filing requirements and fiduciary obligations.
Learn More →MO Tax Strategy & Advisory
Proactive, year-round tax planning that identifies savings opportunities. Entity structure optimization, multi-state planning, and strategic initiatives.
Learn More →MO Cost Segregation Studies
Engineering-based analysis to accelerate depreciation deductions on commercial and residential rental properties, maximizing cash flow.
Learn More →MO Virtual CFO Services
Fractional CFO capabilities including financial modeling, cash flow management, KPI dashboards, and strategic financial leadership.
Learn More →MO Business Consulting
Operational assessments, process improvement, internal control design, and strategic planning to drive efficiency and profitability.
Learn More →MO Estate & Succession Planning
Comprehensive estate planning, business succession strategies, and wealth transfer optimization for business owners and high-net-worth individuals.
Learn More →MO Capital Markets Advisory
Securities compliance, FINRA regulatory guidance, and capital markets advisory for businesses navigating public offerings, private placements, and broker-dealer requirements.
Learn More →Missouri Audit Services in Detail
Missouri businesses, nonprofits, and benefit plan sponsors typically need an independent audit when state law, federal rules, lenders, grantmakers, or boards require external assurance. We perform GAAS-compliant attest engagements scoped to the specific assurance need — most commonly:
Missouri Nonprofit Audits
Missouri does not impose a strict state-mandated audit threshold for nonprofits beyond its general charitable registration requirements. Audited financial statements are routinely required by major Missouri funders — including the Greater Kansas City Community Foundation, the St. Louis Community Foundation, the Missouri Foundation for Health, the Hall Family Foundation, the Ewing Marion Kauffman Foundation, the Sunderland Foundation, the United Way affiliates, and federal subrecipient grantors.
Missouri 401(k) & Employee Benefit Plan Audits
Missouri plan sponsors filing Form 5500 generally require an ERISA-compliant audit when the plan has 100 or more participants with account balances at the start of the plan year. We perform full-scope and §103(a)(3)(C) limited-scope benefit plan audits for 401(k), 403(b), and defined-benefit plans across Missouri, including plans sponsored by Boeing's defense operations in St. Louis, Anheuser-Busch (St. Louis), Bayer Crop Science, Edward Jones, Enterprise Holdings, Express Scripts, Centene, Mastercard's KC operations, BJC HealthCare, Mercy, and Kansas City-area aerospace and engineering firms.
Missouri Single Audits (Uniform Guidance)
Missouri nonprofits, municipalities, school districts, and pass-through subrecipients that expend $1,000,000 or more in federal awards in a fiscal year are subject to the Single Audit requirements of 2 CFR Part 200.
Missouri Lender, Bonding & Investor Audits
Missouri banks (Commerce Bank, UMB, Central Bancompany), surety companies, and Missouri-based private equity, venture, and growth investors frequently require audited financial statements as a condition of credit facilities, surety capacity, or capital raises.
Missouri Reviews & Compilations
Where a full audit is not required, we deliver review engagements (limited assurance) and compilations (no assurance) — both routinely accepted by Missouri lenders and stakeholders requiring CPA-prepared financial statements.
Missouri (MO) Tax & Business Landscape
Key Missouri Tax Numbers. Personal income tax: graduated, top rate currently around 4.7%, with statutory reductions phasing the rate down further over time based on revenue triggers. Corporate income tax: 4% (one of the lowest). Sales and use tax: 4.225% state, plus county/city/special district add-ons; combined rates approximately 8% in St. Louis and Kansas City metros. Estate tax: none. Pass-through entity (PTE) elective tax (MO-PTE): rate matches personal IT, available since tax year 2022. Kansas City and St. Louis local earnings taxes: each city imposes a 1% earnings tax on wages and self-employment income earned in city limits, applying to residents and nonresidents who work in the city.
Filing Mechanics. Individuals file Form MO-1040 (residents) or MO-1040 with Form MO-NRI (nonresidents and part-year residents). C-corporations file Form MO-1120. Partnerships and S-corps file Form MO-1065 / MO-1120S; PTE election is made on Form MO-PTE. Kansas City earnings tax is filed on Form RD-109 (residents) or RD-108 (refunds for nonresidents who can claim partial relief). St. Louis earnings tax is filed on Form E-1. Returns are due April 15.
Kansas City & St. Louis Earnings Tax — A Local Specialty. Both Kansas City and St. Louis have imposed a 1% earnings tax for decades. The tax applies to all wages and net business profits earned within city limits — caught by both city residents (taxed on all earnings) and nonresidents who work in the city (taxed only on wages earned in the city). KC has been the subject of recent ballot-measure renewals; St. Louis has its own administration. Both cities' taxes commonly catch metro Missouri commuters and remote workers.
Missouri Economy & Who We Serve. Missouri's economy spans agriculture (largest U.S. cattle producer; corn, soybeans, hogs), aerospace and defense (Boeing's defense operations in St. Louis; the F/A-18 Super Hornet is built there), brewing (Anheuser-Busch HQ in St. Louis — the iconic American beer brand, now part of AB InBev), pharmaceutical (Bayer Crop Science in St. Louis; Express Scripts), financial services (Edward Jones in St. Louis, Commerce Bank, UMB), trucking and rental (Enterprise Holdings), insurance, healthcare (BJC, Mercy, Centene), tourism (Branson, Lake of the Ozarks), and a strong KC-area engineering, animal health, and tech corridor. Our typical MO clients include Boeing engineers and aerospace professionals, financial services executives, agribusiness operators, real estate investors, and high-net-worth families.
CPA Mobility in Missouri. Missouri has adopted CPA mobility provisions under the Uniform Accountancy Act. Kurt Simmons holds active CPA licenses in Maryland, Delaware, and Florida, and we confirm all applicable Missouri State Board of Accountancy mobility and firm registration requirements before commencing any engagement.
Cities and Communities We Serve. Our virtual-first practice serves clients across all of Missouri, including Kansas City (largest metro; Boeing, agribusiness), St. Louis (Boeing defense, AB-InBev, Edward Jones), Springfield (Bass Pro Shops; medical), Columbia (University of Missouri), Independence, Lee's Summit, O'Fallon, St. Joseph, St. Charles, Jefferson City (state capital), Branson (tourism), the Lake of the Ozarks, and every Missouri county.
Missouri Economy & Who We Serve. Missouri's economy spans agriculture, logistics and transportation (including a major UPS and FedEx presence), defense (particularly Boeing in St. Louis), financial services, healthcare, and tourism. We support Missouri business owners, defense contractors, agricultural producers, and real estate investors.
CPA Mobility in Missouri. Under the AICPA/NASBA CPA Mobility Act adopted by Missouri, a CPA licensed in good standing in another U.S. state may provide attestation, tax, and advisory services to Missouri clients without obtaining a separate Missouri license. Kurt Simmons is a CPA in active good standing in Maryland, Delaware, and Florida, and is fully authorized to provide the complete range of CPA services to Missouri (MO) individuals, businesses, and nonprofits under this mobility framework.
Cities We Serve. While our practice is virtual-first and not tied to any single office, we regularly work with clients in Kansas City, St. Louis, Springfield, Columbia, Independence, Lee's Summit, and O'Fallon, and throughout the rest of Missouri.
Why Missouri Clients Choose Us
- GAAS-compliant audit, review, and compilation experience for nonprofits, benefit plans, and privately held businesses
- Deep expertise in MO-specific issues: Kansas City and St. Louis 1% earnings tax compliance, MO PTE elections, Missouri's flat-tax phase-down, multi-state mechanics for KC/Kansas border commuters and St. Louis/Illinois border commuters, and Boeing/agriculture/brewing industry equity compensation
- Capital markets background — Kurt Simmons has passed the Series 65 examination (Passed; not currently held as an active license) in addition to holding the CPA
- Specialized practices in cryptocurrency taxation, active trader tax, and 83(b) elections for MO tech/aerospace/animal health startup employees
- Technology-forward, virtual-first delivery — secure client portal, e-signature, and video consultations
- Transparent, fixed-fee engagements where possible — no surprise hourly invoices
Missouri CPA — Frequently Asked Questions
Do I need a Missouri-licensed CPA?
Missouri has adopted CPA mobility provisions under the Uniform Accountancy Act. Kurt Simmons holds active CPA licenses in Maryland, Delaware, and Florida, and we confirm any applicable firm-level Missouri State Board of Accountancy registration before commencing attest engagements.
What is Missouri's income tax rate?
Missouri has a graduated personal income tax with a top rate currently around 4.7%, with statutory reductions phasing the top rate down further over time based on revenue triggers. The MO corporate income tax is 4%. Form MO-1040 is due April 15.
I work in Kansas City or St. Louis. Do I owe local earnings tax?
Yes. Both Kansas City and St. Louis impose a 1% earnings tax on wages and self-employment income earned within city limits — applying to both residents and nonresidents who work in the city. Employers withhold the tax. KC residents file Form RD-109; St. Louis residents file Form E-1. We handle the multi-jurisdictional MO/KC/St. Louis tax mechanics common to metro Missouri professionals.
Does Missouri have a SALT-cap workaround?
Yes. Missouri enacted an elective Pass-Through Entity Tax (MO-PTE) effective for tax years beginning on or after January 1, 2022. Eligible S-corps and partnerships pay an entity-level tax tracking the personal income tax rate, and members receive a corresponding credit on Form MO-1040.
Missouri borders Kansas, Iowa, Nebraska, Illinois, Kentucky, Tennessee, Arkansas, and Oklahoma. How do reciprocity and multi-state rules apply?
Missouri does not have wage reciprocity agreements with neighboring states (despite bordering eight states). MO residents working in another state generally pay tax to the work state and receive a credit on MO-1040 for taxes paid to other states. Kansas City metro commuters often work in Kansas while living in Missouri (or vice versa) — we handle MO/KS, MO/IL, and other multi-state combinations routinely.
When does my Missouri nonprofit need an audit?
Missouri does not impose a strict state-mandated audit threshold for nonprofits beyond its general charitable solicitation requirements. Audited financial statements are typically required by lenders, federal grantmakers, the Greater Kansas City Community Foundation, the Missouri Foundation for Health, and major Missouri funders. Federal Single Audit requirements apply when federal awards exceed $1,000,000.
Do you serve Missouri clients outside Kansas City and St. Louis?
Yes. Our practice is virtual-first, so we serve clients across all of Missouri — including Springfield, Columbia, Independence, Lee's Summit, O'Fallon, St. Joseph, St. Charles, Jefferson City (state capital), Branson (tourism), the Lake of the Ozarks, and every Missouri county.