If you’ve ever opened your tax return, saw you owed more than expected, and thought: “Wait — they already withheld taxes on my RSUs and bonus!” You’re not wrong. They did. Just… not enough. Every year, I see high earners engineers, managers, executives get blindsided by this. They’re careful savers, they max out retirement accounts, and they check their paystubs. Yet come April, they’re still writing a check to the IRS. Sometimes 6 figure checks. The reason? A hidden mismatch