Argentina: Senate approves tax treaty with Austria
The Argentine Senate approved the new income and capital tax treaty with Austria on 18 March 2026. Signed on 6 December 2019, the agreement aims to eliminate double taxation and prevent tax evasion with respect to income and wealth. Senator
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Hong Kong, Barbados sign income tax treaty
Hong Kong’s government has announced that representatives from Barbados and Hong Kong signed a comprehensive income tax treaty on 19 March 2026, marking a step forward in strengthening bilateral economic ties. The agreement provides clarity on
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US consults 2026–2027 priority guidance plan
The US Internal Revenue Service (IRS) and Department of the Treasury released Notice 2026-23 on 23 March 2026, inviting public recommendations for items to be included in the 2026–2027 Priority Guidance Plan. The Priority Guidance Plan is used
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Bolivia introduces tax incentives for foreign reinvestment, updates excise duties
Bolivia has introduced tax reforms through Supreme Decree 5563 to encourage foreign investors to reinvest profits domestically and support economic growth. The decree was published in the Official Gazette on 2 March 2026 and took effect
See MoreUS: IRS to host webinar on One, Big, Beautiful Bill business tax provisions
The US Internal Revenue Service (IRS) has scheduled a webinar for 24 March 2026 at 2 PM Eastern time to explain business tax provisions introduced under the One, Big, Beautiful Bill. Tax professionals can earn two continuing education credits for
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US: IRS sets final deadline to claim unclaimed 2022 tax refunds
The US Internal Revenue Service (IRS) announced on 20 March 2026 that over 1.3 million people across the nation have unclaimed refunds for tax year 2022 and face an 15 April deadline to submit their tax returns. The IRS estimates that
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Puerto Rico: Treasury sets e-filing procedure for 2025 corporate income tax return
The Puerto Rico Department of the Treasury has issued Internal Revenue Circular Letter No. 26-06 on 13 March 2026, setting out the procedure for the electronic filing of the Corporate Income Tax Return for tax year 2025. The guidance is issued
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Croatia: Government authorises renegotiations to amend tax treaty with US
Croatia’s government has initiated proceedings, on 18 March 2026, to sign an amending protocol with the US government that will modify the existing convention on avoiding double taxation and preventing tax evasion regarding income taxes. The
See MoreUS, Mexico hold discussions in advance of USMCA joint review
The US Trade Representative (USTR), Jamieson Greer and Mexican Secretary of Economy Marcelo Ebrard have convened on 18 March 2026 to kick off bilateral technical discussions in advance of the USMCA Joint Review on 1 July 2026. Technical teams
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Brazil cuts diesel taxes to shield citizens from oil price surge
Brazil’s government has enacted urgent measures to lower diesel prices as international oil costs spike due to armed conflict involving the US, Israel, and Iran, compounded by escalating tensions near the Strait of Hormuz—a strategic waterway
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Chile: SII clarifies VAT rules on software purchases from US firms, subsequent sublicensing abroad
Chile’s tax authority (SII) has issued Letter Ruling No. 578 dated 6 March 2026, addressing the VAT treatment applicable to a Chilean purchaser acquiring software from an unrelated US supplier and subsequently sublicensing it to customers in
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Chile: SII updates VAT reporting rules for intermediaries
Chile’s Tax Administration, Servicio de Impuestos Internos (SII), has issued Resolution Ex. SII No. 38-2026 of 9 March 2026, introducing changes to the monthly VAT return (Form No. 29) for taxpayers acting as intermediaries. The amendments add new
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US moves forward with USD 166 billion refund for IEEPA tariffs
The US government is progressing on a four-part system to refund USD 166 billion in tariffs collected under the International Emergency Economic Powers Act (IEEPA), with progress estimated between 40% and 80%, according to a recent court
See MoreUS launches trade investigations against 60 largest trading partners over forced labour practices
The United States Trade Representative (USTR) on 12 March 2026 initiated investigations of 60 economies under Section 301(b) of the Trade Act of 1974. The investigations will determine whether acts, policies, and practices of each of these economies
See MoreBrazil introduces export tax on crude oil, diesel
Brazil’s tax authority, the Federal Revenue Service (RFB), has updated its Export Manual to reflect changes introduced by Provisional Measure No. 1,340, issued on 12 March 2026. Previously limited to specific products like cigarettes, the Export
See MoreUS, Ecuador sign reciprocal trade agreement
The US Trade Representative (USTR) Jamieson Greer and Ecuadorian Minister Luis Alberto Jaramillo signed a reciprocal trade agreement opening Ecuador's market of over 18 million consumers to American agricultural and industrial exports on 13 March
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US: JEC brief outlines economic benefits of border adjustment reforms for American consumers, businesses
The US Joint Economic Committee (JEC) released a brief entitled ‘Border Tax Adjustment Would Curtail Profit Shifting and Provide Other Benefits, With Limited Transition Effects’ on 11 March 2026, which outlines the economic case for moving from
See MoreUS: Senate passes bill to block Russia-related tax benefits
The US Senate unanimously approved the Honor Act (S.327) during the week of 9 March 2026. The legislation prevents American companies from claiming foreign tax credits or deductions on taxes paid to Russia. Introduced by Senators Catherine Cortez
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