There’s a nasty surprise lurking for anyone who gets a big raise and decides for selling stocks shortly afterward. You think you’re finally “making it,” maybe cashing out a few shares to celebrate or rebalance your portfolio—and then bam! Your tax bill looks like it went through a steroid regimen behind your back.
It isn’t bad luck. It isn’t some hidden IRS trick. It’s math. Specifically, it’s the combo of income stacking and a widespread misunderstanding of marginal versus effective tax rates. Once you understand how these gears mesh, the shock stops being mysterious and starts being something you can plan around.









