Romania vs United States
Corporate Tax Comparison
Time of Update: Romania: 4/04/2026 / United States: 4/04/2026
Compare Romania and United States corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Romania vs United States Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Romania
United States
General CIT Rate:
16
General CIT Rate:
Federal corporate income tax: 21%. State CIT ranges from 1% to 10% (although some states do not impose CIT) and is deductible from the federal CIT.
CIT Return Due Date:
If the accounting year is equal to the calendar year, the annual CIT declaration form should be due by March 25 of the following year; for cases where the accounting year is different from the calendar year, the annual CIT declaration form should be due on the 25th day of the third month after the end of the company's accounting year. Quarterly CIT declaration forms should be submitted by the 25th day of the next month for the first, second, and third quarters. For the period from 2021 to 2025, the deadline for submitting the annual CIT declaration form is June 25 of the following year, or the 25th day of the sixth month after the revised fiscal year end.
CIT Return Due Date:
1. April 15th (Federal income tax);
2. Income tax is usually due on the same date as federal income tax, but there are a few cases where the dates are different.
2. Income tax is usually due on the same date as federal income tax, but there are a few cases where the dates are different.
CIT Payment Due Date:
The final payment of CIT is usually due on the 25th of the third month after the end of the company's fiscal year. During the period from 2021 to 2025, the final CIT should be due by June 25 of the following year or by the 25th of the sixth month after the revised fiscal year end.
CIT Payment Due Date:
As of the 15th day of the 12th month of the tax year.
CIT Estimated Payment Due Date:
Quarterly installments should be paid by the 25th of the first month after the first, second, and third quarters.
CIT Estimated Payment Due Date:
Throughout the year, four equal instalments of estimated tax should be paid on the 15th day of the fourth, sixth, and ninth months of the tax year, and on the 15th day of the first month of the following year (April 15, June 15, September 15, and January 15).
Withholding Tax (WHT)
Romania
United States
Resident Withholding Tax (Dividend/Interest/Royalty):
8/NA/NA
Resident Withholding Tax (Dividend/Interest/Royalty):
0/10/3
None-Resident Withholding Tax (Dividend/Interest/Royalty):
8/16/16
None-Resident Withholding Tax (Dividend/Interest/Royalty):
30/30/30
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Romania
United States
General Capital Gain Tax Rate:
Capital gains are constrained by the normal corporate income tax rate.
General Capital Gain Tax Rate:
21% (aligned with the federal CIT rate for corporations)
Effective Tax Rate (ETR)
Romania
United States
Composite Effective Average Tax Rate:
14.41%
Composite Effective Average Tax Rate:
22.69
Composite Effective Marginal Tax Rate:
6.41%
Composite Effective Marginal Tax Rate:
7.03
