Yes, Amazon account deductions can be made across sites.

This is confirmed by the fact that Amazon allows monthly rent to be deducted between different sites. If a seller needs to change the deduction site, such as from the Japanese site to the US site, they can contact Amazon's official customer service by creating a work order for processing.

In addition, some comments pointed out that Amazon store funds are reserved across sites in some cases, indicating that in certain circumstances, such as tax issues, funds can be deducted from one site for operations on another site. This information shows that although the specific deduction rules may vary from case to case, Amazon does support a certain degree of cross-site deduction operations.