Licensed CPAs Delivering Full-Service Accounting and Tax Compliance for St. Louis Businesses and Individuals including Every Agency, Every Filing, Every Deadline.
St. Louis businesses operate in one of the most layered tax compliance environments in the St. Louis businesses operate in one of the most layered tax compliance environments in the United States. Three separate taxing authorities, including the IRS, the Missouri Department of Revenue (MODOR), and the City of St. Louis Collector of Revenue, each enforce their own obligations on an independent timeline, with their own penalty structures and their own audit and collection mechanisms. Staying fully compliant means satisfying all three simultaneously, every year, without gaps.
Businesses that operate in St. Louis City face an additional layer. The 1% business earnings tax, the 0.5% payroll expense tax, and the requirement to track and apportion income between city-source and non-city-source earnings. When a business operates both inside and outside city limits, this apportionment becomes a tax compliance obligation in its own right. One that the City License Collector enforces by withholding business license renewals from any business with outstanding earnings tax balances.
World Tax and Accounting provides comprehensive accounting and tax compliance services for St. Louis businesses and individuals, including covering every federal, Missouri state, and city-level obligation under one coordinated engagement, year-round.
Our Accounting and Tax Compliance Services
Monthly Bookkeeping and Financial Reporting
Clean, current records are the foundation of every accounting compliance function. Our tax accountant team provides:
- Monthly transaction recording and categorization with city-source income tracked separately
- Bank and credit card account reconciliation
- Accounts payable and receivable management
- Monthly profit and loss, balance sheet, and cash flow statements
- Records maintained to Missouri’s three-year minimum retention requirement
Payroll Processing, Including Federal, Missouri, and City Level
Full payroll processing for St. Louis employers covers:
- Federal withholding calculations and EFTPS deposit management
- Missouri withholding remittances through MyTax Missouri
- St. Louis city earnings tax withholding, including 1% of wages for city-resident employees and employees working within city limits
- 0.5% city payroll expense tax filed quarterly with the City Collector of Revenue
- Quarterly Form 941, Missouri withholding returns, and Missouri DES unemployment quarterly reports
- Annual W-2, 1099-NEC, Form 940, and Missouri annual reconciliation
Missouri Sales Tax Filing
- Missouri DOR registration through MyTax Missouri before first taxable transaction
- Monthly, quarterly, or annual return preparation and filing based on assigned volume frequency
- Multi-city rate management for businesses serving customers across St. Louis City, St. Louis County, and Illinois markets
- Missouri Use Tax filing for businesses with out-of-state purchases subject to Missouri use tax
Business Tax Return Preparation
We prepare and file all required federal and Missouri business returns, including every entity type, every applicable level, with a full deduction review on every return:
- Federal: Schedule C, Form 1065, Form 1120-S, Form 1120
- Missouri: MO-1040, MO-1065, MO-1120-S, MO-1120
- St. Louis City: Annual filing of business earnings tax return to the City Collector of Revenue
Quarterly Estimated Tax Payments
Accurate federal and Missouri estimated payment calculations based on real year-to-date income and expense data, with advance notification before every payment deadline. Missouri estimated payments follow the Missouri DOR schedule, which may differ from the federal IRS deadlines.
Year-Round Tax Compliance Consulting
Our accounting and tax compliance engagement does not end at filing time. We provide:
- Quarterly compliance reviews identifying any developing gaps before they trigger notices
- S-Corp election analysis and Form 2553 filing when self-employment tax savings apply
- Missouri income tax planning, including retirement contribution optimization, Missouri Social Security exemption planning, 529 deduction maximization
- Multi-state nexus monitoring for St. Louis businesses selling beyond Missouri
- City earnings tax apportionment review for businesses operating inside and outside city limits
Practical Tax Compliance Solutions for St. Louis Small Businesses
City Earnings Tax Account Not Registered
Many St. Louis small businesses begin operating without completing Form E-9 registration with the City Collector of Revenue, and the City License Collector will not issue or renew a St. Louis business license until all current and prior earnings tax balances are paid. Our expert team registers every required account, files all outstanding city earnings tax returns, and pursues penalty abatement through the City Collector where applicable.
Missouri Sales Tax Not Registered
St. Louis businesses that began making taxable sales without registering through MyTax Missouri accumulate unregistered MODOR liability from the first transaction. The Missouri DOR Field Compliance Bureau conducts compliance audits for sales and use tax. Our tax compliance team handles registration, back filing, and Missouri voluntary disclosure submissions where applicable.
Bi-State Income Apportionment Errors
Businesses based in St. Louis County that perform services within St. Louis City must correctly apportion income between city-taxable and non-city-taxable earnings. Our team of certified public accountants correctly structures income apportionment for every applicable client and maintains the bookkeeping records needed to support that position in a city audit.
Payroll Expense Tax Missed Entirely
The St. Louis city payroll expense tax is 0.5% on employers for all wages paid to employees working within city limits, and most of the clients overlook it. It is separate from the earnings tax withholding. Our small business tax compliance service includes payroll expense tax registration and filing for every applicable St. Louis employer client.
Unfiled Zero-Returns for City Earnings Tax
The City of St. Louis requires businesses to file an earnings tax return for every active period, including periods with zero city-source income. Our tax compliance services team files zero-returns on schedule for every registered St. Louis client automatically.
Contact World Tax and Accounting for Accounting and Tax Compliance in St. Louis
Whether you are a St. Louis business owner who needs a full compliance overhaul, a new business getting your accounting structure right from the beginning, or an individual ensuring every federal, Missouri, and city obligation is met, World Tax and Accounting is ready to help.
Our Process for Accounting and Tax Compliance
1 – Free Compliance Assessment: A 30-minute call with a certified public accountant. We review your current filing status across all five St. Louis compliance tracks and give you a clear picture of what full accounting and tax compliance looks like for your specific situation.
2 – Account Audit and Registration Verification: We verify every required registration, Missouri DOR sales tax account, Missouri employer withholding, City of St. Louis Form E-9 earnings tax account, Missouri DES unemployment account, and city business license. Backlogged records are brought up to date, and any existing compliance gaps are identified.
3 – Monthly Accounting and All Filings Managed: Monthly Accounting and All Filings Managed: Our tax compliance services run continuously throughout the year, including bookkeeping, reconciliations, payroll processing, and monthly financial statement delivery. Every filing, including federal, Missouri, and city, is prepared and filed by our team on schedule.
4 – Tax Compliance Consulting and Year-Round Advisory: Quarterly accounting and tax compliance reviews keep your obligations current as your business evolves, such as identifying new filing requirements triggered by revenue milestones, new locations, or new business activities before they become enforcement issues.
5 – Problem Resolution When Needed: If existing IRS, MODOR, or city earnings tax problems are identified, our tax services team resolves them through the same engagement, no separate intake, no second contract, no handoff to another team.
Why St. Louis Businesses Choose World Tax and Accounting
Covers three agencies at a time: Our accounting and tax compliance team covers federal IRS, Missouri DOR, and St. Louis City Collector obligations simultaneously.
Engaged licensed certified public: Every St. Louis’ client’s accounting compliance work is reviewed by a CPA (certified public accountant). You are legally protected by a credentialed professional accountable to you.
Local small business tax compliance built for St. Louis: Our small business tax compliance expertise is built specifically around what St. Louis businesses actually face. Covers the St. Louis tax apportionment requirements and payroll expense tax structure.
Provides full-service in a roof: From bookkeeping, payroll, tax compliance services, IRS representation, and tax resolution to fractional CFO services, are all handled internally by the same licensed team.
Transparent flat-fee pricing: Every engagement is quoted in writing before work begins; there are no hourly billing surprises, no escalating fees as your business complexity increases.