Viewed from Washington, the most consequential regulatory shift now underway is the proposed unwinding of post-2008 capital requirements for American banks. Moody’s has issued a pointed warning to investors that the reforms unveiled in March, which recalibrate risk-weighted asset calculations and ease surcharges on the largest institutions, risk eroding the hard-won resilience of the US banking system. After more than a decade of strengthening balance sheets and building buffers against failure, the framework is being recast in the name of simplicity and competitiveness. The move marks a significant philosophical pivot, one that analysts in London suggest could reverberate across global financial markets if the world’s largest banks are once again permitted to operate with thinner capital cushions.

Yet while the advanced economies debate deregulation, a very different dynamic is unfolding across emerging markets, where authorities are tightening their grip on financial institutions and taxpayers alike. In Ghana, the central bank has issued a stern directive ordering banks, specialised deposit-takers, and payment service providers to cease facilitating unauthorised fiat currency wallets, particularly US-dollar-denominated accounts linked to cryptocurrency platforms. The concern, regulators in Accra explain, is that these arrangements, often supported through conventional bank transfers and payment cards, are operating outside the licensing framework of the Payment Systems and Services Act, creating unmonitored channels for foreign-currency transactions. At the same time, Ghana’s microfinance sector is pushing back against the Bank of Ghana’s revised minimum capital thresholds, warning that while the reform’s intentions are sound, the tight implementation timeline and elevated requirements could inadvertently shrink financial inclusion and amplify systemic fragility.

Nigeria, too, is in the midst of a regulatory recalibration, though one aimed squarely at strengthening market infrastructure rather than easing constraints. The Central Bank of Nigeria has introduced a new transaction-based overnight financing rate, the NOFR, designed to improve monetary policy transmission and provide a credible benchmark for banks and investors. In parallel, it has ordered all payment service providers to store transaction data on local servers from January 2027, a move that tightens oversight of the fast-growing digital payments ecosystem while raising compliance costs for fintech firms and mobile money operators. A separate draft framework for financial holding companies proposes stricter ownership and capital rules, including a requirement that parent entities hold at least 51 per cent equity in each subsidiary, a decade after the original guidelines were introduced to ring-fence banking operations from non-core risks.

In East Africa, Kenya’s experience with its iTax platform illustrates a quieter but equally significant shift in the relationship between taxpayers and the state. The revenue authority’s prepopulated return initiative, initially sold as a convenience, has morphed into a validation regime that effectively compels taxpayers to reconcile their own records against figures generated by the tax administration. The practical result, observers in Nairobi note, is that filing a return is no longer a simple declaration of income but a negotiation with the authority’s own data, raising questions about the burden of proof and the risk of systemic discrepancies. Across the Atlantic, Argentina’s tax agency, ARCA, is deploying similar data-driven enforcement, having detected an unusually high volume of irregularities in employee deductions for clothing and equipment. Thousands of electronic notifications have been dispatched, offering a window for early rectification before more aggressive audits commence.

Taken together, these developments paint a picture of a fragmenting global regulatory landscape. While Washington contemplates a lighter touch for its banking giants, emerging economies are erecting new guardrails, driven by the rapid digitisation of finance, the proliferation of crypto-adjacent services, and persistent fiscal pressures. For international investors and multinational firms, the divergence demands a more sophisticated approach to market entry and ongoing compliance. As tax specialists in Accra have observed, the gravest risks often arise not from the complexity of local rules but from the failure to integrate regulatory planning into strategy from the very start. The coming period will test whether the US can afford to relax its safeguards, and whether the tightening underway elsewhere can be calibrated to strengthen systems without stifling the innovation and inclusion they seek to protect.