Japan weighs corporate tax hike to fund defense spending as five-year tab may reach ¥80tn

The funding mechanism, not the spending figure, is the real story here: shifting the burden toward corporate taxation signals that defense expansion is moving from a budget aspiration into a fiscal commitment with identifiable payers. For Japanese industry, this introduces a cost that sits outside the usual defense-procurement calculus, and business pushback is already flagged as a risk. The emphasis on drones, ammunition and missile stockpiles points to a sustainment-focused buildup rather than headline platform purchases, which matters for suppliers further down the chain. Whether the corporate tax route survives political and business resistance is the open question to watch.