On July 13, President Trump announced a significant 20% levy on all cargo passing through the strategic Strait of Hormuz, a waterway that facilitates approximately 20% of global oil and natural gas trade. This decision marks a notable shift in U.S. policy, positioning the United States as the 'Guardian of the Hormuz Strait' and introducing a formal charge for security and protection of vessels not linked to Iran.

The proposed fee aims to cover what Trump described as security costs for maintaining safe passage. The U.S. military has a long-standing presence in the Persian Gulf, but this move represents a departure from its traditional role of ensuring free navigation. While the U.S. plans to resume blocking Iranian vessels, this could further escalate military tensions in the region, which have been rising since March 2026.

Global Market Reaction and Implications

The implications of this announcement were swift, with Brent crude oil prices spiking above $81 per barrel. Traders are reacting to potential disruptions in supply chains and the likelihood of increased shipping costs for vessels navigating the strait. Analysts are concerned that if these costs genuinely double, the effect on global inflation could be significant. A rapid rise in energy prices would complicate central banks' decisions around interest rates, possibly delaying rate cuts.

Cryptocurrency Impact and Iranian Proposals

Interestingly, the geopolitical situation also intersects with the cryptocurrency market. Just before Trump's announcement, Iran proposed to conduct toll payments for shipping via cryptocurrencies, including Bitcoin and USDT. These plans, however, were rejected by U.S. officials. Iran views cryptocurrencies as a viable means to mitigate the effects of international sanctions, leveraging Bitcoin mining powered by subsidized energy to navigate financial isolation.

The potential for a toll system using digital assets would have given Iran a method to engage with global trade, effectively legitimizing crypto-based sovereign payments. Such developments amplify the stakes for crypto investors, especially as energy prices rise, which could directly impact mining profitability.

This material is informational and not financial advice.