Portugal, Sao Tome and Principe, Costa Rica, Thailand: Tax Rates & Startup Funding Compared

Side-by-side breakdown of tax rates, startup funding, startup ecosystem, and 6 more dimensions for founders choosing where to incorporate in 2026.

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Singapore Cyprus Estonia Uruguay Panama Portugal Costa Rica Belize Switzerland Malta United Kingdom Canada Greece Italy Paraguay Spain Georgia United Arab Emirates Germany Ireland Indonesia Colombia Netherlands Argentina Mexico Thailand Sao Tome and Principe

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🇵🇹Portugal

IFICI (Incentivo Fiscal para a Internacionalização de Competências e Investimento)

🇹🇭Thailand

Worldwide

🇨🇷Costa Rica

Territorial

🇸🇹Sao Tome and Principe

Worldwide

Dimension Profile

Shape = jurisdiction fingerprint. Gap = your decision.

Tax Regime Comparison5

🇵🇹PortugalIFICI (Incentivo Fiscal para a Internacionalização de Competências e Investimento)48%

🇹🇭ThailandWorldwide35%

🇨🇷Costa RicaTerritorial25%

🇸🇹Sao Tome and PrincipeWorldwide25%

Tax system mismatchCritical

Thailand and Sao Tome and Principe tax all worldwide income once you become a tax resident (top rate: 35%). Portugal and Costa Rica do not - only locally-sourced income is taxed. This is a fundamental structural difference that affects your total effective tax burden.

Exit tax applies in one jurisdictionCritical

Portugal has an exit tax. If you establish residency and later wish to leave, you may owe tax on unrealized gains or assets at departure. The other countries in this comparison do not have an exit tax.

23pp personal tax rate spreadReview

Both countries tax worldwide income, but the top personal income tax rates differ materially. Portugal: 48% vs Sao Tome and Principe: 25%. Both apply to all global earnings once you establish residency.

CFC rules apply in one jurisdictionReview

Portugal has Controlled Foreign Corporation (CFC) rules. Owning a foreign company as a resident may trigger local tax on undistributed profits - even if the company pays no dividends. The other countries in this comparison do not have CFC rules.

Special tax regime available in one jurisdictionNote

Portugal (IFICI (Incentivo Fiscal para a Internacionalização de Competências e Investimento)) offers a qualifying program that may exempt foreign-source income from local tax for up to 10 years. This can significantly reduce your effective rate compared to the standard regime.

Not tax advice. Tax laws change frequently. Verify with a qualified professional before making residency decisions.

Field-by-Field Breakdown

Green = best value per row

Metric	🇵🇹Portugal76	🇹🇭Thailand57	🇨🇷Costa Rica75	🇸🇹Sao Tome and Principe46
Dimension Scores
Corporate Tax	55	43	100	17
Funding	95	70	60	40
Visa	90	90	90	50
Residency	78	58	58	56
Tax Res.	45	60	75	55
Practical	91	58	78	55
Remote Work	69	72	84	52
Family	95	80	80	70
Ecosystem	90	60	40	40
Corporate Tax Details
Corporate Tax Rate	21%	20%	30%	25%
Capital Gains Tax	28%	0%	15%	0%
Tax Treaties	78	61	12	3
Territorial System	No	No	Yes	No
Funding Details
Active VCs	48	20	8	0
Government Grants	Yes	Yes	Yes	No
EU Funding Eligible	Yes	No	No	No
Visa Details
Has Startup Visa	Yes	Yes	Yes	No
Processing Time	90	60	45	42
Min Investment	$0	-	-	$90K
E-Residency	No	No	No	No
Digital Nomad Visa	Yes	Yes	Yes	No
Residency Details
Visa Programs Available	3	2	2	2
Citizenship Timeline	5	12	7	-
Dual Citizenship	Yes	No	Yes	Yes
Immigration Score	8	6	7	7
Tax Res. Details
Tax Residency Days	183	180	-	183
Personal Tax Top Rate	48	35	25	25
Territorial Taxation	No	No	Yes	No
Special Tax Regime	Yes	No	No	No
Exit Tax	Yes	No	No	No
Practical Details
Banking Difficulty	moderate	moderate	moderate	very_difficult
100% Foreign Ownership	Yes	No	Yes	Yes
Company Formation	3	14	14	30
Virtual Office OK	Yes	Yes	Yes	No
Remote Work Details
Nomad Visa	Yes	Yes	Yes	No
Tourist Work	gray_area	gray_area	tolerated	illegal
Tourist Visa Days	90	30	90	15
PE Risk Level	moderate	low	low	low
Days Before Tax Res.	183	180	-	183
Internet Speed	85	200	60	10
Coworking/mo	$180	$150	$200	-
Family Details
Safety Index	82	62	55	65
Int'l Schools	Yes	Yes	Yes	No
Homeschooling	legal_with_restrictions	legal_with_restrictions	legal	-
Healthcare Quality	76	72	75	30
Cost of Living	68	40	52	28
Ecosystem Details
Unicorns	6	3	0	0
English Business Env	Yes	No	No	No
Talent Pool Quality	72	55	45	10

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