Tax treaty between Colombia and the UK enters into force

The UK tax authority (HMRC) launched a consultation on 12 March 2026, inviting input on business systems integration and ways to simplify record-keeping for businesses. The purpose of the consultation is to gather insights from businesses,

The UK has amended its Climate Change Levy (CCL) rules with the introduction of the Climate Change Levy (Fuel Use and Recycling Processes) (Amendment) Regulations 2026, made on 11 March 2026 and effective from 12 March 2026. The regulations

The UK’s HM Revenue & Customs (HMRC) initiated a public consultation, on 12 March 2026, regarding the expansion and improvement of the Uncertain Tax Treatment (UTT) regime, under which large in-scope taxpayers must inform HMRC of any uncertain

The UK tax authority, HM Revenue & Customs (HMRC) has initiated a consultation on 10 March 2026 regarding the updates and standardisation of the format of UK corporation tax computations. The government is introducing prescribed formats for

The UK government will abolish the shadow Advance Corporation Tax (ACT) system from April 2026, streamlining the way businesses can use their existing ACT balances. Shadow Advance Corporation Tax (Shadow ACT) is a UK notional tax mechanism

Colombia’s National Tax and Customs Directorate (DIAN) announced, on 4 March 2026, that several tax deadlines will be extended because the third Friday of April was declared a civic holiday for national-level entities under Decree 500 of