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Equity compensation

RSU Tax Planning for Medtech Executives

By Matt Hightower · August 27, 2026

The basics

How RSUs Are Taxed at Vesting

Restricted stock units are not taxed when they are granted. Because a grant is only a promise of shares on a future date, there is nothing of realized value to tax yet, and no tax is owed at that point.

The taxable event happens at vesting. When RSUs vest, the fair market value of the shares on that vesting date is treated as ordinary income and added to your W-2 wages for the year, regardless of whether you sell the shares or continue holding them. That value is also generally subject to Social Security and Medicare withholding, the same as a paycheck.

Vesting and selling are two separate events for tax purposes. Vesting sets your ordinary income and establishes your cost basis in the shares. Selling later, at a higher or lower price than the vesting-date value, creates a separate short-term or long-term capital gain or loss, measured from that basis rather than from zero.

Withholding

The 22% Supplemental Withholding Gap

Because RSU income is classified as a supplemental wage, employers generally withhold federal tax on it at a flat rate, 22% for amounts up to $1 million in a calendar year and 37% on amounts above that threshold, under IRS rules for supplemental wages (see IRS Publication 15). That flat rate is applied automatically, without regard to your actual marginal tax bracket.

For medtech executives in the 32%, 35%, or 37% federal bracket, 22% withholding may not come close to covering the tax ultimately owed on a large vest. The shortfall does not disappear: it typically shows up as a balance due at filing, and depending on the size of the gap and your other withholding and estimated payments, it could also trigger an underpayment penalty.

Because this gap compounds with every vest date across a year, estimating it ahead of time, rather than discovering it at tax season, may help you plan for the shortfall through adjusted W-4 withholding, a quarterly estimated payment, or a partial sale at vest. The RSU Tax Gap Calculator walks through this math using your own vest schedule and income, so the size of the gap is visible before it becomes a surprise.

At vesting

Sell-to-Cover vs. Hold Strategies

At vesting, there are generally two paths for the shares that land in your account. Sell-to-cover means selling enough of the newly vested shares immediately to cover the associated tax withholding, and keeping the rest. Holding means keeping all of the vested shares and covering any taxes from other funds if needed.

Each approach carries trade-offs rather than a clear advantage. Selling at vest may simplify tax management, since the position does not grow further and the shares sold at vesting generally create little or no additional capital gain, because the sale price is close to the value already taxed as income. It also means giving up any further participation in that stock’s performance, for better or worse.

Holding keeps you invested in the company and may align with a view that the stock has room to grow, but it also means each new vest adds further to a position that may already be concentrated in a single employer. There is no strategy here that applies universally. The choice generally depends on your existing concentration, your tax situation, and your own view of the company, and is worth weighing deliberately rather than defaulting into either path.

Portfolio risk

Concentration Risk and Diversification Timing

Concentration risk is the exposure that builds when a large share of your net worth sits in one company’s stock. It is a common condition for medtech executives, whose RSUs, stock options, and ESPP shares can accumulate over years into a position that represents a meaningful part of total wealth, layered on top of a salary that already depends on the same employer.

Diversifying out of a concentrated position, by selling some shares and reinvesting elsewhere, may reduce the risk that a single company’s setback affects both your income and your portfolio at once. That potential risk reduction comes with its own limitation: selling appreciated shares generally creates a capital gains tax bill, and the timing of a sale could also affect how much tax is owed depending on how long the shares were held and what other income arrives in the same year.

There is no fixed threshold at which a position becomes too concentrated, and no single right pace for diversifying out of one. Some executives spread sales across several years to manage the tax impact, while others prioritize reducing exposure more quickly. What may work for one household’s tax situation and risk tolerance may not fit another, which is why this is generally worth modeling against your own numbers rather than a general guideline.

The full picture

Coordinating RSU Vesting with Other Equity Compensation

RSUs rarely arrive alone. Medtech executives often also hold incentive stock options (ISOs), non-qualified stock options (NSOs), or shares purchased through an employee stock purchase plan (ESPP), each with its own tax treatment and its own deadlines. ISOs can trigger alternative minimum tax in the year of exercise even if no shares are sold. NSOs create ordinary income at exercise. ESPP shares carry qualifying and disqualifying disposition rules that depend on how long they are held after purchase.

Treating each grant type as a separate, isolated decision may mean missing opportunities to manage the combined tax bill. For example, timing an option exercise in a year with a smaller RSU vest, rather than stacking both into the same year, could help manage which tax bracket the combined income lands in, though whether that timing is available or advisable depends on individual vesting schedules, expiration dates, and other income.

Coordinating vest and exercise timing across all of these grant types, rather than reacting to each one as it arrives, is generally the more structural version of this planning. Our equity compensation planning work starts from that same coordination across grant types rather than treating any single vest in isolation.

Straight answers

Questions about RSU tax planning

This material is for general educational purposes only and is not intended as tax, legal, or investment advice. Neither GGM Wealth Advisors nor Cambridge provides tax or legal advice. Please consult a qualified professional about your specific situation.

See how your own vest schedule adds up

The withholding gap, the sell-or-hold decision, and your concentration all depend on your specific grants and income. A conversation is the fastest way to see which of these apply to you.