Guam
GU · territory · 10 cited facts
| Category | Provision | Value | Source |
|---|---|---|---|
| community-property | Community property jurisdiction | Community property jurisdiction: property acquired by either spouse during marriage which is not separate property is community property (19 GCA 6101, former Civil Code) | sources (1)19 GCA sec. 6101(b) · high confidence · as of 2026-07-02 · TY 2025 Guam statute defines community property as property acquired by either spouse during marriage Community property means property acquired by either spouse during marriage which is not separate property. Note: col.guamcourts.gov is the Judiciary of Guam Compiler of Laws (.gov). Chapter 6 (secs. 6101-6114) derives from former Civil Code secs. 155-168, renumbered by the Compiler. Verbatim from the fetched PDF. https://col.guamcourts.gov/sites/default/files/19gc006.pdf |
| conformity | Capital gains rate (TY2025) | Mirrors federal IRC § 1(h): 0% / 15% / 20% LTCG (12-month hold); ordinary rates on STCG; 48 U.S.C. § 1421i Mirror Code | sources (1)48 U.S.C. § 1421i (Organic Act of Guam, Pub. L. 81-630, 64 Stat. 384 (1950)) · high confidence · as of 2026-06-19 · TY 2025 Guam Mirror Code: federal income tax laws apply in Guam as territorial income tax The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. § 1421i(b) designates the resulting tax the 'Guam Territorial income tax,' payable to the Guam government. § 1421i(d)(1) specifies that the incorporated provisions include Subtitle A of the IRC (which contains IRC § 1(h), the 0%/15%/20% long-term capital gains rate schedule), chapters 24 and 25 of subtitle C, and all applicable subtitle F provisions. No Guam-specific modification to the federal capital gains rate structure exists in the statute. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i&num=0&edition=prelim |
| character | Long-term holding period | 12 months (same as federal IRC § 1222); Guam applies the full federal IRC via Mirror Code | sources (1)48 U.S.C. § 1421i (Organic Act of Guam, Pub. L. 81-630, 64 Stat. 384 (1950)) · high confidence · as of 2026-06-19 · TY 2025 Guam Mirror Code: federal income tax laws apply in Guam as territorial income tax The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. § 1421i(b) designates the resulting tax the 'Guam Territorial income tax,' payable to the Guam government. § 1421i(d)(1) specifies that the incorporated provisions include Subtitle A of the IRC (which contains IRC § 1(h), the 0%/15%/20% long-term capital gains rate schedule), chapters 24 and 25 of subtitle C, and all applicable subtitle F provisions. No Guam-specific modification to the federal capital gains rate structure exists in the statute. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i&num=0&edition=prelim |
| treasury | U.S. Treasury interest | Exempt: 31 U.S.C. § 3124 prohibits state/territory taxation of U.S. obligations; Mirror Code does not override federal preemption | sources (1)31 U.S.C. § 3124(a) · high confidence · as of 2026-06-22 · TY 2025 U.S. Treasury obligations exempt from taxation Stocks and obligations of the United States Government are exempt from taxation by a State or political subdivision of a State. The exemption applies to each form of taxation that would require the obligation, the interest on the obligation, or both, to be considered in computing a tax. Note: 31 U.S.C. § 3124(a) exempts interest on U.S. government obligations from state and territorial taxation. Guam honors this federal preemption under the Supremacy Clause (U.S. Const. art. VI, cl. 2). The exemption is exclusive to U.S. Treasury obligations and related instruments; it does not cover GSEs (FNMA, FHLMC) or agency obligations without their own statutory exemption. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title31-section3124 |
| qoz-conformity | QOZ conformity (IRC § 1400Z-2) | Conforms: IRC § 1400Z-2 is part of Subtitle A, incorporated by 48 U.S.C. § 1421i Mirror Code | sources (1)48 U.S.C. § 1421i (Organic Act of Guam, Pub. L. 81-630, 64 Stat. 384 (1950)) · high confidence · as of 2026-06-19 · TY 2025 Guam Mirror Code: federal income tax laws apply in Guam as territorial income tax The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. § 1421i(b) designates the resulting tax the 'Guam Territorial income tax,' payable to the Guam government. § 1421i(d)(1) specifies that the incorporated provisions include Subtitle A of the IRC (which contains IRC § 1(h), the 0%/15%/20% long-term capital gains rate schedule), chapters 24 and 25 of subtitle C, and all applicable subtitle F provisions. No Guam-specific modification to the federal capital gains rate structure exists in the statute. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i&num=0&edition=prelim |
| qsbs-conformity | QSBS conformity (IRC § 1202) | Conforms: IRC § 1202 is part of Subtitle A, incorporated by 48 U.S.C. § 1421i Mirror Code | sources (1)48 U.S.C. § 1421i (Organic Act of Guam, Pub. L. 81-630, 64 Stat. 384 (1950)) · high confidence · as of 2026-06-19 · TY 2025 Guam Mirror Code: federal income tax laws apply in Guam as territorial income tax The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. § 1421i(b) designates the resulting tax the 'Guam Territorial income tax,' payable to the Guam government. § 1421i(d)(1) specifies that the incorporated provisions include Subtitle A of the IRC (which contains IRC § 1(h), the 0%/15%/20% long-term capital gains rate schedule), chapters 24 and 25 of subtitle C, and all applicable subtitle F provisions. No Guam-specific modification to the federal capital gains rate structure exists in the statute. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i&num=0&edition=prelim |
| agency-obligations | FNMA/FHLMC bond interest | Taxable: Guam Mirror Code incorporates IRC gross income rules; FNMA/FHLMC interest is in federal gross income; 31 U.S.C. §3124 preempts only direct U.S. government obligation taxation; FNMA/FHLMC are GSEs without a bondholder exemption | sources (1)31 U.S.C. § 3124 · medium confidence · as of 2026-06-20 · TY 2025 Guam taxes FNMA and FHLMC bond interest: Guam Mirror Code incorporates federal IRC including gross income rules; 31 U.S.C. §3124 preempts only direct U.S. obligation taxation; FNMA/FHLMC are not U.S. government obligations Stocks and obligations of the United States Government are exempt from taxation by a State or political subdivision of a State. The exemption applies to each form of taxation that would require the obligation, the interest on the obligation, or both, to be considered in computing a tax. Note: 48 U.S.C. § 1421i (Guam Mirror Code) is co-authority: it incorporates IRC Subtitle A, placing FNMA/FHLMC interest in Guam gross income. Quote covers §3124 only (the preemption boundary). 31 U.S.C. §3124 exempts only 'obligations of the United States Government'; FNMA (12 U.S.C. §§1719(e), 1723a(c)) and FHLMC (12 U.S.C. §1455(a)) are GSEs with no such exemption. No GITCA ruling found. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title31-section3124 |
| dividend-qualified | Qualified dividend rate (IRC §1(h)(11)) | Preferential: Guam Mirror Code (48 U.S.C. §1421i) incorporates IRC §1(h)(11) as part of Subtitle A; qualified dividends taxed at 0%/15%/20% territorial rates (subject to domestic-corporation substitution nuance; no authoritative GITCA ruling) | sources (1)48 U.S.C. § 1421i(a) · medium confidence · as of 2026-06-20 · TY 2025 Guam Mirror Code incorporates IRC §1(h)(11): qualified dividends receive preferential 0%/15%/20% rates under Guam territorial income tax (subject to domestic-corporation substitution nuance) The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. §1421i(a) is the general mirror-code provision; subsection (d)(1) addresses specific tax administration matters. IRC §1(h)(11) (qualified dividend preference) is part of IRC Subtitle A, incorporated by 48 U.S.C. §1421i. Under mirror-code substitution, 'domestic corporation' in §1(h)(11) may be read as a Guam-incorporated corporation; no authoritative IRS or GITCA ruling has definitively resolved whether dividends from US mainland corporations qualify. Encoded as preferential (prior session research judgment); confidence: medium. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i |
| fhlb-ffcb | FHLB and FFCB bond interest | Exempt: FHLB and FFCB securities are federal instrumentalities under 12 U.S.C. §1433 and §2023; their income is exempt from Guam territorial taxation under the Supremacy Clause (U.S. Const. art. VI, cl. 2); medium confidence, no GovGuam DRT ruling found | sources (2)12 U.S.C. §1433 (Federal Home Loan Bank Act); 12 U.S.C. §2023 (Farm Credit Act) · medium confidence · as of 2026-06-20 · TY 2025 FHLB and FFCB bond interest exempt from Guam taxation: federal enabling statutes mandate state tax exemption Any security issued under this chapter by a Federal home loan bank, including the stock thereof, shall be exempt from taxation, except taxes upon real estate, by any State, county, municipality, or local taxing authority. Note: 12 U.S.C. §1433 says 'any State, county, municipality, or local taxing authority'; that clause refers to sub-state political subdivisions, not U.S. territories. Guam is bound by §1433 and §2023 under the Supremacy Clause (U.S. Const. art. VI, cl. 2): federal enabling statutes bind territorial governments the same as states. See also constitutional intergovernmental tax immunity (McCulloch v. Maryland, 17 U.S. 316 (1819)). Confidence: medium; no GovGuam DRT ruling found. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title12-section1433&num=0&edition=prelim12 U.S.C. §2023 (Farm Credit Act) · high confidence · as of 2026-06-20 · TY 2025 Farm Credit Act: notes, bonds, debentures, and other obligations of Farm Credit Banks are instrumentalities of the United States exempt from all State, municipal, and local taxation The mortgages held by the Farm Credit Banks and the notes, bonds, debentures, and other obligations issued by the banks shall be considered and held to be instrumentalities of the United States and, as such, they and the income therefrom shall be exempt from all Federal, State, municipal, and local taxation, other than Federal income tax liability of the holder thereof under the Public Debt Act of 1941 (31 U.S.C. 3124). Note: 12 U.S.C. §2023 explicitly covers 'the income therefrom' (i.e., interest payments to bondholders), exempting it from all State and local taxation. The only carve-out is federal income tax on the holder. Parallel to 12 U.S.C. §1433 (FHLB Act), which exempts FHLB securities from state taxation. Together §1433 and §2023 mandate state and local tax exemption for both FHLB and FFCB bond interest. Shared across all jurisdictions: a single object reference satisfies buildCitationIndex() identity check. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title12-section2023&num=0&edition=prelim |
| filing-status-partial | Filing status: partial MFJ bracket widening (mirrors federal) | Yes: Guam Mirror Code (48 U.S.C. §1421i) incorporates the federal income tax bracket structure, including the filing-status schedules; MFJ bracket thresholds are partially wider than single filer (not fully doubled at higher income), mirroring the federal structure. | sources (1)48 U.S.C. § 1421i (Organic Act of Guam, Pub. L. 81-630, 64 Stat. 384 (1950)) · high confidence · as of 2026-06-19 · TY 2025 Guam Mirror Code: federal income tax laws apply in Guam as territorial income tax The income-tax laws in force in the United States of America and those which may hereafter be enacted shall be held to be likewise in force in Guam. Note: 48 U.S.C. § 1421i(b) designates the resulting tax the 'Guam Territorial income tax,' payable to the Guam government. § 1421i(d)(1) specifies that the incorporated provisions include Subtitle A of the IRC (which contains IRC § 1(h), the 0%/15%/20% long-term capital gains rate schedule), chapters 24 and 25 of subtitle C, and all applicable subtitle F provisions. No Guam-specific modification to the federal capital gains rate structure exists in the statute. https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title48-section1421i&num=0&edition=prelim |