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
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US, 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 agreementÂ
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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Canada cuts PIT, lifts first-time home buyer GST, removes federal fuel charge
Canada’s Department of Finance confirmed that the Making Life More Affordable for Canadians Act (Bill C‑4) obtained royal assent and entered into force on 12 March 2026. The bill introduces key measures to reduce costs, helping Canadians save
See MoreUS: IRS updates tax withholding estimator to incorporate new legislative changes
The US Internal Revenue Service (IRS) unveiled enhancements to the IRS Tax Withholding Estimator on 12 March 2026 to reflect changes to credits and deductions under the One, Big, Beautiful Bill, including no tax on tips, no tax on overtime, and
See MoreUS: Treasury issues list of nations obliged to comply with international boycottÂ
The US Department of the Treasury issued a Federal Register notice on 11 March 2026 identifying countries that may mandate participation in international boycotts. The designated nations are Iraq, Kuwait, Lebanon, Libya, Qatar, Saudi Arabia, Syria,
See MoreUS launches trade investigations to restore tariff leverage after court setback
The Trump administration announced two new trade investigations on 11 March 2026, targeting unfair trade practices and forced labour as it seeks to rebuild tariff pressure following the US Supreme Court's dismantling of Trump's tariff program in
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Argentina updates income tax, VAT rules
Argentina’s government has published Law No. 27,802/2026 in the Official Bulletin on 6 March 2026, which entered into force on the same day, introducing amendments to the existing income tax, VAT, excise duties, and other taxes. Income
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