Country A
United States
Top income tax: 37%
Corporate: 21%
VAT: 0% · CGT: 20%
VS
Country B
Ireland
Top income tax: 40%
Corporate: 12%
VAT: 23% · CGT: 33%
Full Tax Rate Comparison
| Tax Type | United States | Ireland | Lower Rate |
|---|---|---|---|
| Top Income Tax | 37% | 40% | United States |
| Bottom Income Tax | 10% | 20% | United States |
| Corporate Tax | 21% | 12.5% | Ireland |
| VAT / GST | 0% | 23% | United States |
| Capital Gains Tax | 20% | 33% | United States |
| Social Security (Emp) | 7.7% | 4% | Ireland |
| Dividend Tax | 23.8% | 51% | United States |
| Tax Treaties | 68 | 74 | Ireland |
Take-Home Pay Estimate
Illustration — €100,000 gross annual income
United States Take-Home
€68,300
Ireland Take-Home
€70,000
Annual Difference
+€1,700
Verdict
Overall Tax Burden
Near-identical overall tax burden
Both United States and Ireland have comparable overall tax burdens. Top income tax: 37% (United States) vs 40% (Ireland). Corporate: 21% vs 12.5%. The choice should be driven by residency conditions, treaty access, and lifestyle.
Tax System: Territorial vs Worldwide
| Factor | United States | Ireland |
|---|---|---|
| Territorial Taxation | No | No |
| Digital Nomad Visa | No | No |
| Wealth Tax | No | No |
| CFC Rules | No | Yes |
Special Regimes Available
| Country | Regime | Rate / Benefit | Duration |
|---|---|---|---|
| Ireland | SARP | 30% of income exempt | 5 years |
Frequently Asked Questions
Which country has lower taxes: United States or Ireland?
United States has a top income tax rate of 37% and corporate tax of 21%. Ireland has 40% and 12.5% respectively. On €100k gross, estimated take-home is €68,300 in United States vs €70,000 in Ireland. Actual liability varies with deductions, residency rules, and individual circumstances.
Is United States or Ireland better for expats and digital nomads?
United States uses a worldwide tax system. Ireland uses a worldwide tax system and offers the SARP (30% of income exempt, 5 years). The best choice depends on income type, desired residency duration, and lifestyle preferences.
What is the corporate tax difference between United States and Ireland?
The statutory corporate tax rate is 21% in United States and 12.5% in Ireland. Effective rates can differ significantly due to deductions, loss carry-forwards, and R&D credits. Both countries may offer reduced rates or special regimes for SMEs or qualifying businesses.
Disclaimer: Rates shown are statutory rates for 2026. Effective rates vary with deductions and individual circumstances. Not tax advice.