USA Annual Compliance, Sales Tax & Payroll Guide
Everything your U.S. business needs to stay compliant with the IRS, all 50 states, and federal payroll rules — handled by certified experts with a zero-penalty guarantee.
Compliance Audit
The IRS Doesn’t
Care If You
Didn’t Know.
Most business owners in the U.S. are unknowingly non-compliant. Missing state annual reports, ignoring sales tax nexus, misclassifying contractors — and then wondering why they’re getting penalty notices.
The U.S. compliance system is layered, deadline-driven, and unforgiving. Federal obligations sit on top of 50 separate state regimes, each with their own forms, thresholds, and deadlines.
OnDemand International has navigated this for 3,000+ businesses across every entity type and all 50 states. We handle it so you don’t have to.
Get Your Free Audit →Automatic IRS penalty — foreign-owned LLCs most at risk
5% per month on unpaid tax + daily compounding interest
Post-Wayfair — online sellers must comply with no physical presence
Even inactive California LLCs owe $800 annually
USA Annual Compliance
Federal & State
All U.S. companies must comply with federal and state regulations. Missing even one filing can put your Good Standing at risk and trigger cascading penalties.
Annual Tax Return (IRS)
Form 1120 (C-Corp) · Form 1065 (LLC/Partnership) · Form 1120-S (S-Corp). Strict March or April deadlines.
EIN Maintenance & IRS Correspondence
Maintaining your EIN, handling IRS notices, and keeping entity details current across all federal systems.
Estimated Quarterly Tax Payments
Required when expected annual tax exceeds $1,000. Due April, June, September, and January.
State Annual Report & Franchise Tax
Filed with Secretary of State. Delaware and California charge franchise taxes regardless of profit — CA minimum $800/year.
Registered Agent Maintenance
Every state requires an in-state registered agent. Losing Good Standing can freeze your U.S. bank accounts.
Not Sure Which Forms Your Entity Must File?
We audit your LLC, C-Corp, or S-Corp and map every obligation — federal, state, and local. Zero cost, zero commitment.
Sales Tax
(USA’s VAT
Equivalent)
The USA has no VAT. Instead, 45 states plus D.C. impose their own sales taxes — and since the 2018 Wayfair ruling, you can owe tax in states where you’ve never set foot.
Economic Nexus (Post-Wayfair)
Triggered at $100,000 in sales or 200 transactions in a state — even with zero physical presence.
Physical Presence Nexus
Office, warehouse, inventory, or employees — including Amazon FBA centers — create automatic filing obligations.
Sales Tax Permit Registration
Must register in each nexus state before collecting. Both collecting without a permit AND not collecting carry liability.
Monthly, Quarterly & Annual Returns
Zero-dollar returns are often required even when no tax was collected during the period.
Exemption Certificate Management
Missing exemption certificates during an audit means you personally owe the uncollected tax.
Payroll Compliance
in the USA
Payroll is the most penalised area in U.S. compliance. Missing a payroll deposit can trigger the Trust Fund Recovery Penalty — 100% of unpaid tax, assessed personally against business owners.
Employee Classification (W-2 vs 1099)
The IRS uses a multi-factor test. Misclassification means back-taxes, interest, and penalties retroactively for years.
Payroll Tax Withholding
Federal income tax, Social Security (6.2%), Medicare (1.45%) withheld each paycheck. Employer matches FICA — personally collectible.
Form 941 — Quarterly Federal Payroll Tax
Filed every quarter. Reports federal income tax, Social Security, and Medicare withheld. Monthly or semi-weekly deposits required.
Form W-2 & 1099 Annual Filings
W-2s issued to employees by January 31. Form 1099-NEC to contractors paid $600+. Filed with IRS and state agencies.
FUTA & SUTA — Unemployment Insurance
Federal FUTA at 6% on first $7,000 wages (credit reduces to 0.6%). State SUTA rates vary — we track all 50 states.
We Run Your Entire Payroll Compliance Stack.
W-2 prep, Form 941 filings, FUTA deposits, state payroll registration — all done for you.
Critical Forms Every
U.S. Business Must Know
A quick-reference breakdown of the most important IRS and state filings.
Form 1120 — C-Corporation
AnnualAnnual corporate income tax return. Reports all income, deductions, and the 21% flat federal corporate tax. Late-filing penalty 5% per month up to 25%.
Form 1065 — LLC / Partnership
AnnualAnnual informational return for multi-member LLCs. Issues Schedule K-1 to each partner. Required even in loss years with zero revenue.
Form 1120-S — S-Corporation
AnnualS-Corp annual return. Pass-through entity — no corporate-level tax. Schedule K-1 issued to each shareholder. Max 100 U.S. shareholders.
Form 941 — Quarterly Payroll
QuarterlyQuarterly federal payroll tax return. Reports federal income tax, Social Security, and Medicare withheld. Due within one month of each quarter end.
Form 5472 — Foreign Owners
AnnualRequired for any U.S. entity that is 25%+ foreign-owned with reportable transactions. $25,000 automatic IRS penalty per missed or late form.
FinCEN BOI Report
One-TimeCorporate Transparency Act requires most LLCs and corps to disclose beneficial owners with 25%+ control. New entities file within 30 days of formation.
How We Handle Your Compliance
Four clear steps from your first call to year-round coverage — no surprises.
Free Compliance Audit
We review your entity, state registrations, and filing history to identify every gap across federal, state, and local levels.
Custom Filing Calendar
We build a personalised compliance calendar — every deadline mapped and every form identified for your specific business.
We File Everything
Our team prepares, reviews, and submits all returns — federal, state, payroll, and sales tax — well before deadlines.
Year-Round Monitoring
We track law changes, nexus triggers, and IRS notices proactively — alerting you the moment something changes.
Penalties for Non-Compliance
The IRS doesn’t negotiate on automatic penalties. Here’s what’s at stake.
Late Tax Filing
of tax due + daily compounding interest
- 5% failure-to-file penalty per month on unpaid tax
- 0.5% failure-to-pay penalty per month until fully paid
- Interest accrues daily at federal short-term rate + 3%
- Risk of losing Good Standing and business license
Payroll & Form Violations
per missed form + Trust Fund Recovery risk
- $25,000 per missed or late Form 5472 (foreign-owned)
- Trust Fund Recovery Penalty — 100% of unpaid payroll tax
- Worker misclassification: back-taxes + interest + penalties
- IRS audit risk elevated — can go back 6+ years
Sales Tax Non-Compliance
license revocation + interest + back-tax
- Back taxes on all uncollected sales in every nexus state
- State penalties of 10–25% of tax due depending on state
- Revocation of sales tax permit and business license
- Personal liability — can pierce the corporate veil
Don’t Risk a Single Penalty. We’ll Handle It All.
Our compliance experts guarantee on-time, accurate filings for every federal, state, payroll, and sales tax obligation — year-round.
Straight Answers to Hard Questions
The questions every founder asks when they first discover U.S. compliance is more complex than expected.
Full U.S. Compliance. Zero Penalties. Done For You.
Annual filings, sales tax, payroll, and foreign owner requirements — managed by certified experts, on time, every single year.
- 3,000+ Businesses Served
- All 50 States Covered
- 15+ Years U.S. Expertise
- IRS Registered Preparers
- Zero Penalty Guarantee