Financial Planning for Anthropic Employees

Anthropic has offered equity compensation in the form of Restricted Stock Units (RSUs) and Stock Options (ISOs/NSOs), with new equity grants coming predominantly in the form of RSUs as of early 2026.

Restricted Stock Units (RSUs) at Anthropic are shares of stock granted to an employee which are tied to vesting provisions. Most commonly, employees are required to stay at the company for a specific period of time in order to receive their shares. As of early 2026, leading AI companies have shortened or eliminated their vesting cliffs, meaning grant recipients may no longer need to wait the typical twelve months before receiving time-vested shares. Beyond the vesting cliff, Anthropic RSU grants typically vest incrementally over a 4-year period, with 25% of the granted shares vesting each year in quarterly or monthly increments.

RSUs are taxable as ordinary income based on their fair market value (FMV) at the date of vesting. RSUs that are held after vesting may also become taxable as capital gains if they are eventually sold for a price higher than the FMV at vest. Additionally, Anthropic RSUs are what are known as Double-Trigger RSUs, meaning they don't become taxable until two conditions are met: time-based vesting conditions have been met, and vested shares are eligible for some form of liquidity event.

RSU income falls under the "supplemental wage income" category, meaning it's subject to different payroll withholding standards than your salary. For Federal income tax purposes, the default withholding rate is a flat 22% that ratchets up to a flat 37% once supplemental income crosses $1M for the year. Because of this, you may find yourself in a position where you owe income tax beyond what was withheld from the settlement of your RSUs.

A Double-Trigger RSU doesn't become taxable until two conditions are met: time-based vesting conditions have been met, and vested shares are eligible for some form of liquidity event (such as a tender offer or the company's IPO). Once Anthropic goes public, all subsequently vesting RSUs will be taxable immediately upon vesting. Employees and insiders will be subject to lockup provisions at IPO, meaning holders of vested RSUs may end up owing taxes on shares they can't sell yet.

Both ISOs and NSOs become taxable at exercise. For ISOs, assuming they haven't been disqualified, no ordinary income tax is due at exercise, though the optionholder may owe Alternative Minimum Tax (AMT) in the year of exercise if the spread between the strike price and fair market value is large enough. For NSOs, this spread is taxable as ordinary income in the year of exercise. For ISO shares that meet qualified disposition holding requirements, the option spread noted above is taxable as a long-term capital gain in the year of sale. For sales of NSO shares, gains in share price are taxable as either short- or long-term capital gains, depending on the holding period.

ISOs can become NSOs when an employee leaves the company or is considered terminated for any reason. Federal law mandates that ISOs retain their favorable tax status for 90 days following termination, at which point the company determines what happens to your options. Some companies opt to keep the options' original expiration date in place and shift the ISOs to NSO status, some companies choose to terminate any unexercised options immediately following the 90-day window, and some fall in between. It's important to check your specific grant documents to see how this question is handled.

In order for an ISO to receive favorable tax treatment, shares must be held for 2 years after grant and 1 year after exercise. If both of these holding periods are not satisfied, your shares will be treated as NSOs for tax purposes. This means that the spread between the strike price and FMV, also known as the bargain element, becomes taxable as ordinary income in the year that the shares are disqualified. Strategic disqualifying can result in avoidance of AMT on share value that has evaporated since exercise. Conversely, disqualification can result in overpayment of AMT and payment of ordinary income tax. For this reason, it's imperative to meet with a qualified financial planner or tax professional before selling your ISOs.

The first thing is to understand when you'll be able to cash out. Employees and insiders will be subject to lockup provisions, as was seen with SpaceX's IPO in 2026. Commonly, the lockup window is 180 days, though it can vary. Because of the nature of double-trigger RSUs, many employees will be taxed on shares that they can't immediately sell. It's vital to incorporate both liquidation timing and the tax implications you'll face at IPO into your game plan. Beyond that, you'll need to build a plan for what to do with your eventual proceeds — including how you'll manage concentration risk, ways to manage exposure to capital gains tax on highly-appreciated shares, how you imagine your lifestyle looking post-IPO, whether this sudden increase in wealth merits more sophisticated estate planning, and how this will change your need for insurance coverage.

It's vital to find a financial planner who understands the tools available to you. These include nuanced tools like Irrevocable Trusts (SLATs, IDGTs, Dynasty Trusts, etc.) for managing taxable estate exposure, charitable giving vehicles (CRTs, DAFs for gifting of appreciated shares, etc.), and capital gains mitigation strategies (tax-aware long short, exchange funds, direct indexing). Of equal importance is dictating a tax-sensitive trading plan for after your shares become liquid, earmarking an appropriate amount of cash for tax liability generated at IPO and subsequent sales, and ensuring your household is carrying an appropriate amount of personal liability coverage.

Anthropic's charitable matching program allows employees to designate a percentage of their new hire equity grant(s) to be gifted to charity, with the company reportedly matching that donation at higher ratios for early employees and lower ratios for more recent hires. This gives charitably inclined employees an opportunity to multiply their charitable gifting capacity without putting further strain on their financial planning or liquidity prospects. Employees who submitted their election before the cutoff have a set time to fulfill their pledges. Anthropic has partnered with Daffy to allow the donation of Anthropic stock directly; alternatively, employees can sell shares and donate the net cash proceeds to a Donor Advised Fund (DAF) with their preferred charitable giving platform. In order for shares to qualify for donation, they must be common shares — for RSUs, this means only vested and settled shares qualify, and for stock options, this means you must exercise option contracts prior to donation.