The Vesting Calendar

A reader emailed me in July. Subject line was four words.

"I owe how much?"

He had a hundred and eighty thousand dollars of restricted stock vest in April. His company withheld at twenty-two percent. He sits in the thirty-five percent bracket. In July his accountant ran a projection and found he was roughly twenty-three thousand dollars short on federal alone, before the underpayment penalty started ticking.

Nobody stole from him. Nobody made an error. The payroll system did exactly what it was built to do. He just was not watching.

That is equity compensation in one story. It runs on a calendar you did not build, using defaults you did not choose, and it hands you the bill on a schedule that has nothing to do with when you were paying attention. Most people treat a vest like a bonus. It is not a bonus. It is a taxable event, a concentration decision, and a cash flow problem that all land on the same Tuesday morning.

We are in the back half of September. If your company is on a standard cycle, you have a Q4 vest coming, an employee stock purchase period closing, and a trading window that opens after third quarter earnings and slams shut around the middle of December. Four things are about to happen at once. Let us get ahead of them.

Open a blank sheet. You are going to fill in four columns, and I want you to pull every number from source documents, not memory. Your equity portal. Your grant agreements. Your last three pay stubs.

Column one: vest dates. Every tranche, through the end of next year. Not "quarterly in Q4." The actual dates. Most schedules cliff at the one year mark then vest monthly or quarterly, and most people cannot tell you within three weeks when their next one hits.

Column two: trading windows. If you are subject to a blackout, write down when the window opens and closes. For most companies the window opens one to two business days after earnings are released and closes two to four weeks before the quarter ends. That is often a fourteen to twenty day slot, four times a year. Fifty-six trading days out of two hundred and fifty-two. You are locked out of the market seventy-eight percent of the year, and nobody tells you that in the offer letter.

Column three: expiration and clock dates. Option expiration. The ten year grant wall. The ninety day post-termination exercise window if you leave. For incentive stock options, the two year mark from grant and the one year mark from exercise, which together decide whether you get long term capital gains treatment or ordinary income.

Column four: the tax deadline attached to each. This is the column everyone skips. Some of these decisions have to be made by December thirty-first. Some have a thirty day fuse. Some have no deadline at all and can wait. Knowing which is which is most of the job.

When you finish this sheet, something uncomfortable usually happens. People discover they have three or four real decision points a year, and every one of them is clustered into about six weeks. That clustering is why equity decisions get made badly. You are not making them calmly in February. You are making them in a rush in late November with a holiday calendar on top of you.

Here is the mechanic that got my reader.

When restricted stock vests, the fair market value on that date is ordinary income. It shows up on your W-2. Your employer has to withhold, and for supplemental wages the default flat rate is twenty-two percent up to a million dollars of supplemental income in a year, then thirty-seven percent above that.

Twenty-two percent is not a tax rate. It is a placeholder.

If your total income puts you in the thirty-two, thirty-five, or thirty-seven percent bracket, every dollar that vests is under-withheld by ten to fifteen points. On a hundred thousand dollar vest that is a ten to fifteen thousand dollar hole. It does not announce itself. It just sits there until April, and if it is big enough, the underpayment penalty joins it.

Three ways to close it, in order of how much I like them:

Run this calculation once, in the next week: take every vest that has already happened this year, multiply the total by the gap between twenty-two percent and your actual marginal rate, and that is roughly what you owe that nobody has collected yet. Do the same for vests still coming. Now you have a number instead of a feeling.

One more item while you are in there. When you eventually sell vested shares, your cost basis is the fair market value on the vest date, because you already paid ordinary income tax on it. Brokerage 1099-B forms have a long history of reporting that basis as zero or leaving it blank. If you take that form at face value you will pay tax twice on the same money. Check every sale line before it goes on a return.

This one costs people real money and it is entirely avoidable.

Incentive stock options do not create ordinary income when you exercise. What they create is a preference item for the alternative minimum tax, equal to the spread between your strike price and the fair market value at exercise. Hold the shares past year end and that spread can trigger an AMT bill on gains you have not received in cash.

Now here is the part that matters. If you exercise and the stock falls, you can sell the shares before December thirty-first. That converts it to a disqualifying disposition, the AMT preference item disappears, and you are taxed on the actual, smaller gain you really had.

That escape hatch only works inside the same calendar year.

So exercising in February gives you eleven months to watch the stock and bail if it craters. Exercising on December twenty-second gives you nine days. Same transaction, wildly different risk. If you are planning an incentive stock option exercise, the worst possible month to do it is the month most people actually do it.

If an exercise is already on your list for this year, model it now. You need three numbers: your strike, the current fair market value, and the total spread across the shares you plan to exercise. Then have someone run an AMT projection before you click the button, not after. The tools inside Galaxy.ai are good for pulling apart a grant agreement and getting the terms into plain language fast, which is where most people stall out. But the AMT number itself is worth paying a human for.

If your company runs an employee stock purchase plan, the typical structure is a fifteen percent discount with a lookback that prices off the lower of the offering date or the purchase date. That is a real edge. On a six month period, a fifteen percent discount is roughly a seventeen and a half percent immediate return on the money, before any move in the stock, which annualizes to something absurd.

Three things people get wrong.

First, they treat the discount as a reason to hold. It is not. The discount is earned at purchase. Holding afterward is a separate decision about whether you want to own more of your employer, and it should be judged on its own.

Second, they misunderstand the holding period. For a qualifying disposition you need two years from the offering date and one year from the purchase date. Hit both and the treatment improves, but the discount portion is still ordinary income either way. You are optimizing the appreciation, not the discount.

Third, they let contributions ride at a level they picked three years ago. Purchase periods commonly close in late November or on December thirty-first. Look at your election now, while you can still change it.

Every person I know who is underwater on employer stock made the same mistake. They decided what to do after the shares hit their account, while looking at the price.

Write the rule in advance. It should sound boring. Something like: "I sell seventy percent of every vest within five business days of it landing, and I hold the rest up to a ceiling of fifteen percent of my liquid net worth. Above that ceiling, I sell everything."

The specific numbers matter less than the fact that you set them cold, in September, instead of hot, in November, with the stock down eleven percent and your gut telling you to wait for a bounce.

Two things to anchor on. Your salary, your bonus, your health insurance, and your equity are all claims on one company. That is concentration most people would never accept if it were a stock they picked. And a vest is functionally the same as your employer handing you cash and you immediately buying shares with all of it. If you would not do the second thing, you should not tolerate the first.

If you are an insider or you routinely bump into blackout periods, look at a scheduled trading plan. The rules require a cooling off period between adoption and the first trade, and the plan has to be put in place while a window is open, so this is something you set up in the open window and benefit from later. It takes the decision out of your hands, which is the entire point.

The calendar only works if it interrupts you. Build three triggers in Make and be done with it.

That is the whole system. Not clever. Just present at the right moments.

Ninety minutes, one sitting:

The Equity Compensation Control Sheet

I built the sheet I use for this. It holds the four column vest calendar, the withholding gap calculator with the bracket table already loaded, an incentive stock option decision tree that tells you whether an exercise belongs this year or next, the purchase plan holding period tracker, and the sell rule template with three worked examples at different concentration levels. There is also a one page briefing you can hand to your accountant so the conversation takes fifteen minutes instead of an hour.

Reply to this email with the word VEST and I will send it over. No charge.

One more thing.

We opened The Grid Inner Circle last month. It is where the conversations happen that do not fit in a newsletter, which in practice means people posting their actual grant terms and asking whether the exercise math works. Twenty-nine dollars a month, or four hundred and ninety-nine dollars for a founding lifetime seat that never renews and never reprices. The lifetime option is genuinely a founding thing and it will not be here forever.

Reply with CIRCLE and I will send you the details.

Your company picked the vest dates. You pick everything else.

See you Wednesday.

Alex Rivera
Wealth Architect at Wealth Grid