Tax & Compliance in United States
Quick answer
A US company faces federal corporate income tax plus state income tax that varies by state, sales tax set at state and local level with economic-nexus rules, and payroll tax withholding, filing federal and state returns with the IRS and state agencies. There is no national VAT or e-invoicing mandate. This is informational only and is not tax, legal, or accounting advice.
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Corporate tax 21% · VAT 0% · Dividend 30% · Compliance complexity elevated
United States tax snapshot
- Corporate tax
- 21%
- Standard VAT
- 0%
- Dividend tax
- 30%
Compliance complexity
Derived from United States's compliance-difficulty rating of 4/5.
Corporate tax vs compliance burden
Compliance flow
Corporate tax overview
A C-corp pays federal corporate income tax plus state corporate income tax that varies by state; an LLC is often pass-through unless it elects corporate treatment. See the country profile for the federal rate.
VAT overview
The US has no VAT. Sales and use tax is set at state and local level, and economic-nexus thresholds determine where an out-of-state seller must register and collect.
Payroll obligations
Employers withhold federal and state income tax and FICA (Social Security and Medicare), and pay employer-side payroll taxes, depositing and reporting on set schedules.
Dividend taxation
C-corp dividends are taxed at the shareholder level after corporate tax (classic double taxation), while pass-through LLC profits are generally taxed to the owners directly.
Accounting requirements
Companies keep books adequate to support federal and state filings and retain records; financial-statement requirements depend on financing and stakeholders rather than a universal filing.
Filing requirements
Annual federal income tax returns (Form 1120 for C-corps; pass-through returns for many LLCs), state returns, sales-tax returns where registered, and payroll-tax deposits and filings.
E-invoicing status
The US has no national e-invoicing mandate; adoption is voluntary, and there is no federal VAT-style reporting layer behind invoicing.
Non-resident considerations
Non-resident-owned US entities can operate, but state choice, effectively connected income, withholding on certain payments, and federal information returns need attention.
Compliance complexity
Overall compliance complexity for United States reads as elevated, based on the country's formation, accounting, payroll, and compliance difficulty ratings.
- Accounting: Companies keep books adequate to support federal and state filings and retain records; financial-statement requirements depend on financing and stakeholders rather than a universal filing.
- Filing: Annual federal income tax returns (Form 1120 for C-corps; pass-through returns for many LLCs), state returns, sales-tax returns where registered, and payroll-tax deposits and filings.
- Most favorable
- Favorable
- Mixed
- Least favorable
Compliance risk factors
- Triggering sales-tax economic nexus in multiple states unknowingly
- Misclassifying workers for payroll-tax purposes
- Missing state-level franchise or income-tax filings
Tax deadlines overview
3 recurring reporting obligations (cadence, not exact dates).
- Sales-tax returns on a state-set monthly, quarterly, or annual cadence where registered
- Annual federal and state income tax returns
- Payroll-tax deposits and filings on set schedules
Typical mistakes
- Assuming one national sales-tax system instead of state-by-state nexus
- Overlooking state franchise taxes and annual reports
- Treating an LLC's default tax status as fixed rather than electable
FAQ
- Does the US have VAT?
- No. The US uses state and local sales and use tax instead, with economic-nexus rules determining where an out-of-state seller must register and collect. This is informational only.
- Is an LLC always pass-through for tax?
- By default many LLCs are pass-through, but an LLC can elect corporate (including S-corp) treatment, changing how profits are taxed.
Related
Business structures
Business banking
Start a business
Country profile
Payments
Other countries
Legal
Sources
- U.S. Internal Revenue Service — Internal Revenue Service — Publication 542 (Corporations) (accessed ; reviewed )Covers: US federal corporate income tax treatment for C corporations.Why it matters: Primary-authority reference for the United States corporate tax rate in the dataset.
- OECD — OECD — economic and tax statistics (accessed ; reviewed )Covers: Comparable corporate tax, statutory rate, and economic indicators across member and partner economies.Does not cover: Effective tax rates, deductions and incentives, local surtaxes, and personal residency rules.Why it matters: Used as a cross-country baseline to sanity-check rates against primary tax-authority figures.Review cadence: Annual, plus on major statutory changes.
- PricewaterhouseCoopers — PwC Worldwide Tax Summaries (accessed ; reviewed )Covers: Corporate income tax, VAT, and dividend withholding rates across most covered jurisdictions.Does not cover: Your specific effective rate, bespoke incentives, rulings, or transactions requiring professional advice.Why it matters: Used to triangulate rates against primary tax-authority sources, not as the sole authority.Review cadence: Updated by the publisher per tax year; re-checked each data review.
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