Switzerland vs Portugal
Corporate Tax Comparison
Time of Update: Switzerland: 4/01/2026 / Portugal: 4/04/2026
Compare Switzerland and Portugal corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Switzerland vs Portugal Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Switzerland
Portugal
General CIT Rate:
Federal corporate income tax: after-tax profit of 8.5% (pre-tax profit of 7.83%). State and local CIT is added to federal CIT, resulting in an overall effective tax rate between 11.9% and 21.0%, depending on the company's domicile in Switzerland.
General CIT Rate:
21
CIT Return Due Date:
The due date varies from canton to canton (usually between six and nine months after the close of the business year).
CIT Return Due Date:
The last day of the fifth month after the end of the tax year.
CIT Payment Due Date:
The due date varies from canton to canton.
CIT Payment Due Date:
The last day of the fifth month after the end of the tax year.
CIT Estimated Payment Due Date:
Federal CIT is usually due by 31 March of the following tax period. At the cantonal level, the due dates vary from canton to canton.
CIT Estimated Payment Due Date:
Three-stage installment payments due in July, September, and December (if the tax year corresponds to the calendar year). Under certain conditions, the final installment payment may be waived.
Withholding Tax (WHT)
Switzerland
Portugal
Resident Withholding Tax (Dividend/Interest/Royalty):
0%-35% / 0%-35% / 0
Resident Withholding Tax (Dividend/Interest/Royalty):
25/25/25
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0%-35% / 0%-35% / 0
None-Resident Withholding Tax (Dividend/Interest/Royalty):
25/0-25/25
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Switzerland
Portugal
General Capital Gain Tax Rate:
The effective tax rate (ETR) depends on the company’s location of corporate residency in Switzerland. The ETR of a company resident at the capital cities of the Swiss cantons varies between 11.9% and 20.5%. Exceptions to be considered relate to the participation relief and capital gains on real estate.
General Capital Gain Tax Rate:
25 (same as the normal CIT rate for corporations)
Effective Tax Rate (ETR)
Switzerland
Portugal
Composite Effective Average Tax Rate:
17.1%
Composite Effective Average Tax Rate:
28.42%
Composite Effective Marginal Tax Rate:
10.4%
Composite Effective Marginal Tax Rate:
16.01%
