Tax in San Marino

Who is the tax authority and where do filings live?

San Marino's Ufficio Tributario, under the Secretariat of State for Finance and Budget, administers San Marino's tax system [SC1]. Substantive law: Tax Law (Legge 166/2013 IGR reform with successive amendments), Imposta Generale sui Redditi-Indiretta framework (similar to VAT), and successive amendments. San Marino uses the euro under monetary agreement with EU.

What is the tax year and when are returns due?

Individual tax year is the calendar year. Personal returns due 30 June [SC1]. Corporate annual returns due 30 June. Imposta Generale Indiretta (VAT-equivalent) monthly.

Who is a San Marino tax resident?

Under IGR Law, an individual is tax resident if (a) maintaining residence in San Marino, OR (b) physically present 183+ days in calendar year [SC2]. Residents taxed on worldwide income.

What are the personal income tax rates?

Progressive IGR brackets approximately 9-35 percent across multiple bands [SC1]. Personal allowance applies. Investment income face specific rates. Capital gains under specific provisions.

How does San Marino's corporate tax work?

IGR Corporate 17 percent flat [SC2]. Withholding on non-resident dividends 5 percent (treaty rates apply). Pillar Two pending under successive amendments. Tax losses 5 years.

What about Imposta Generale Indiretta?

Indirect General Tax similar to VAT at 17 percent on most goods and services [SC3]. Reduced rates apply on specified categories. Cross-border supply framework with Italy and EU.

How are cryptoassets taxed?

San Marino has progressively engaged with cryptoasset/blockchain framework. Where declared, gains under existing income-tax categories.

What is the treaty network and what are the audit triggers?

San Marino has approximately 23 active double tax treaties [SC4]. MLI signed 2018. Standard SOL 5 years; extended for fraud.

What are the common penalties and pitfalls for foreigners?

Penalty framework: late filings, failure to file, incorrect declarations [SC5]. Common pitfalls: (1) flat 17 percent CIT; (2) Pillar Two pending; (3) ~23 DTCs + MLI signed 2018; (4) post-2009 transparency reforms; (5) microstate framework with Italian-influence cross-border framework; (6) euro under monetary agreement with EU; (7) Captains Regent dual-Head-of-State framework; (8) unique tax-residency-acquisition pathway; (9) Italy-San-Marino cross-border framework dominant; (10) ~33,000-resident-population tax-administration scale.