Once investors begin to understand how accounts interact with taxes, a new instinct often appears.

The instinct to optimize.

If different containers produce different tax outcomes, it seems natural to try to minimize taxes everywhere.

Move this investment here.
Relocate that income there.
Shift assets into the most tax-efficient structure possible.

And at first glance, this instinct seems perfectly rational.

Taxes reduce returns.

So reducing taxes should improve outcomes.

But financial systems rarely reward optimization without limits.

Because the pursuit of perfect tax efficiency can quietly introduce a new kind of risk.

Fragility.