How High Earners Can Think More Clearly About “What You Keep” Instead of Just “What You Make”

A high income is not the same thing as financial security. That distinction sounds obvious. In practice, it’s often ignored.

High earners are conditioned to focus on the number at the top of their pay stub: the gross figure, the salary, the deal size, the bonus. That number feels like the scorecard. But it’s not the number that funds retirement, pays for college, or transfers to the next generation. The number that does all of that is what’s left after the government, the market, and uncoordinated financial decisions have each taken their share.

Thinking clearly about “what you keep” requires understanding where the leakage happens. And for high earners, it happens in more places than most realize.

The gap between what you earn and what you keep

Start with the federal income tax. The top marginal rate is 37 percent for single filers with taxable income above $640,600 in 2026 ($768,700 for married couples filing jointly). But that’s not where the tax exposure ends for high earners. Two additional federal levies often go unnoticed until they show up on a return.

The first is the Net Investment Income Tax (NIIT), a 3.8 percent surtax on interest, dividends, capital gains, and passive income for individuals with modified adjusted gross income above $200,000 (single) or $250,000 (joint).

The second is the Additional Medicare Tax, an extra 0.9 percent on earned income above those same thresholds. Neither is indexed for inflation, which means more taxpayers cross these lines every year without earning meaningfully more in real terms.

Layer in state income taxes, which top out at 13.3 percent in California and exceed 10 percent in several other states, and the combined marginal rate facing a high earner in a high-tax state can approach or exceed 50 cents on the dollar for certain income types. That’s the ballpark before any investment losses, missed deductions, or poorly timed decisions make it worse.

Most high earners know they pay a lot in taxes. Few have a precise picture of exactly how much, across every layer, and what decisions are actively making it higher than it needs to be.

The marginal rate isn’t the effective rate

Here’s a distinction that changes how you think about tax planning. Your marginal rate is the rate on your last dollar of income.

Your effective rate is the percentage of your total income that goes to taxes. For most high earners, those two numbers are meaningfully different. The distance between them isn’t fixed. It’s engineered.

According to the most recent IRS Statistics of Income data, the average federal income tax rate across all individual filers eased to 14.1 percent in tax year 2023, well below the rates that dominate headlines. The top 1 percent of earners paid an average rate of 26.26 percent, roughly seven times the 3.7 percent rate faced by the bottom half of filers.

High earners face higher effective rates, but the spread between their marginal and effective rates still represents real dollars that thoughtful planning can preserve. That planning starts with the tax code and asks which decisions, structures, and timing choices produce the best after-tax result. It doesn’t treat taxes as an afterthought that gets addressed in April.

The difference between those two approaches (reactive versus proactive) tends to be most evident in four areas.

Where high earners leave money on the table

• Income timing. For W-2 employees, timing looks like a question of when to exercise stock options or recognize a large capital gain. For business owners, it’s the decision of when to accelerate or defer income between tax years. Done without a full picture of the current year’s exposure, these decisions routinely push income into higher brackets or trigger surtaxes that could have been avoided.
• Entity structure. How a business is organized has consequences that extend well beyond the legal liability questions most owners focus on. The interplay between entity type, qualified business income (QBI) deductions, self-employment taxes, and the owner’s personal bracket requires careful analysis. Many business owners are sitting in a structure that made sense at founding and hasn’t been revisited since.
• Investment account coordination. The location of assets across taxable accounts, traditional retirement accounts, and Roth accounts affects how much of the growth you ultimately keep. Placing high-yield bonds in a tax-deferred account and equity index funds in a taxable account isn’t just portfolio theory; it’s a tax decision. So is harvesting losses without triggering wash-sale rules across accounts that aren’t reviewed together.
• Charitable and estate strategies. Donor-advised funds, qualified charitable distributions, and gifting strategies like annual exclusion gifts or 529 contributions each carry tax implications that interact with income, estate exposure, and long-term wealth transfer goals. Without integration, these decisions get made in isolation. The result is rarely the most efficient outcome.

The coordination problem

Most high earners work with multiple professionals: an accountant who prepares the return, a financial advisor who manages the portfolio, perhaps an estate attorney who drafted documents years ago. Each does their job. What often doesn’t happen is the conversation between them.

That gap is expensive. A financial advisor who doesn’t see the full tax return may harvest losses without realizing a wash sale has occurred in a retirement account. An accountant who doesn’t know the portfolio allocation can’t flag that asset location is creating unnecessary taxable income. An estate plan drafted without input from either professional may hold assets in ways that create income tax problems at death.

Reframing the question

The most useful shift a high earner can make isn’t finding a better investment or a more aggressive strategy. It’s asking a different question at the outset.

Instead of “How much am I making?” the question becomes “How much of what I’m making am I keeping, and what decisions are determining that number?”

That reframe leads to a different set of priorities. It makes tax planning year-round rather than seasonal. It makes coordination between advisors a requirement rather than a nice-to-have. It makes the effective rate, not the marginal rate, the number worth tracking.

The math is on the side of this approach. Small improvements in after-tax return, compounded over decades, produce outcomes that dwarf what incremental investment alpha typically delivers. The opportunity isn’t in finding the next great investment. It’s in stopping the quiet, preventable erosion of what the investments produce.