Browse topics
By strategy goal
Minimize immediate tax
RSUs
How to read your W-2 and 1099-B for RSUs
The vesting income already sits in your W-2. The basis column on your 1099-B is the one you have to correct yourself, or the same dollars get taxed twice. Here is every number, where it lives, and a full vest worked start to finish.
The RSU tax traps that hit in April, and how to dodge them
The flat rate your company withholds at vesting is almost always lower than what you owe, and that gap is just the first of the RSU traps. This is the complete field guide: the withholding gap, estimated taxes, the double-taxed 1099-B, short-term gains, blackouts, wash sales, acceleration, and the private-company bill on shares you cannot sell.
Sell at vesting or hold? The complete RSU decision
Sell at vesting unless you can name a real reason to hold. This is the whole decision, start to finish: the default, how to fund the tax, when holding earns its keep, how to diversify a pile you already have, and how to give shares away without paying gains.
Case study: a full vesting year at a public company
An engineer with a large RSU year, and the tax bill nobody warned her about.
2026 RSU supplemental withholding rates
The flat supplemental rates that apply to your 2026 vests, and why they often under-withhold.
RSU withholding gap calculator
See how much your company under-withheld on a vest and what to set aside before April.
Case study: the $14,000 double-tax RSU mistake
How a wrong 1099-B basis overcharged one filer, and how the amended return fixed it.
How RSUs are taxed at an IPO
An IPO can detonate years of double-trigger RSUs into one tax year. The income stacks, the withholding falls short, and the bill arrives while the stock is still locked up.
RSU sell-or-hold after-tax calculator
Compare selling at vest against holding, after tax and after concentration risk.
Restricted stock
Restricted stock awards (RSAs): the complete guide
An RSA is real stock you own at grant, on a vesting schedule, common at the earliest startups. That ownership from day one is what makes the 83(b) election possible, why founders reverse-vest, and what decides who keeps shares when someone leaves.
Should you file an 83(b) election? The decision and the breakeven
For early-stage stock worth almost nothing, filing the 83(b) is close to a no-brainer. It only gets hard once the shares carry real value and the tax you prepay stops being a rounding error. The breakeven is the price where prepaying finally beats waiting.
How to file an 83(b) election, step by step
The letter, the 30-day clock, the line-by-line fields, and the proof you keep, in one checklist. Filing 83(b) is simple, but it is unforgiving, so the order of operations matters.
Missing the 30-day 83(b) deadline (and skipping it on purpose)
The 83(b) election has a hard 30-day window and no late forgiveness. Miss it, or skip it, on early-stage stock and you can hand the IRS a tax bill that grows every year the company does well, on shares you cannot sell to pay it.
A founder's restricted stock, start to exit
Follow one founder's restricted stock from incorporation to acquisition, and watch how a single form filed in week one decides what the exit actually pays. The tax fork happens at the beginning, not the end.
2026 update on filing the 83(b) election
The current filing and proof rules for an 83(b) election, including the IRS's official Form 15620. The 30-day clock has not budged.
Case study: the missed 83(b) that cost six figures
An early hire skipped the form, then vested into a unicorn valuation. The tax bill arrived years before any chance to sell.
ISOs
ISOs and the AMT: the complete guide
Exercising and holding ISOs can hand you a cash tax bill on a gain you never sold, and this is the whole story of how that happens and how to plan around it.
How ISOs work
Incentive stock options can turn your entire gain into long-term capital gains, no ordinary income at all. The path is narrow, every step has a deadline, and this is the whole map from grant to sale.
Form 3921 and Form 6251 for ISOs
One form your employer mails you, one form where the AMT shows up, and one form where the sale gets reported three different ways. Get them aligned and the ISO surprise loses its power.
Planning the ISO exercise year
Exercise up to the point where AMT kicks in, early in the year, then stop and repeat. The whole strategy is choosing how much spread to recognize, when to hold, and when to sell, on purpose.
Case study: exercising pre-IPO ISOs
An early employee exercised before the IPO and made an AMT bet that paid off. The lesson is in why it worked, not that it did.
ISO AMT estimator
Estimate the alternative minimum tax a planned ISO exercise would trigger this year, before you write the check to exercise.
ISO exercise cost calculator
Add up the strike price and the AMT so you know the full cash cost of exercising your ISOs, not just the sticker price.
Case study: the AMT trap when the stock crashed
A worker owed AMT on a paper gain, then the shares fell 70%. Here is what he did next and what would have saved him.
Case study: what happens to ISOs in an acquisition or IPO
A liquidity event finally lets you sell, and that is exactly when ISO holders make their most expensive mistakes. The money showing up is not the same as the money you keep.
NSOs
How NSOs are taxed: the bargain element and everything after
The spread between the stock price and your strike at exercise is ordinary income, taxed like salary that year. Then the shares are just stock. This is the whole NSO tax picture: the spread, the payroll surtaxes, the withholding gap, your real basis, and the capital gain after.
NSO traps: the double-counted basis, the cash bills, and the deadlines that kill grants
The expensive NSO mistakes are quiet ones. The double-counted 1099-B basis taxes you twice, under-withholding ambushes you in April, illiquid stock owes cash you can't raise, and two deadlines erase winning options. Here is all of it.
Reporting NSOs: your W-2, your 1099-B, and the basis fix
The spread lands in your wages on the W-2, the sale shows up separately on the 1099-B, and the basis is the link between them. Read them as one story, fix the basis on Form 8949, and you pay tax once instead of twice.
NSO exercise strategy: when to exercise, hold or sell, and the moves around it
The one lever an NSO hands you is the calendar. This is the whole playbook: when to exercise, whether to hold or sell, how to spread it, how to fund the tax, and how to give the shares away.
Case study: a large NSO exercise in one year
A director exercises $300k of spread at once, gets surprised by the bracket math, and learns the lever was the calendar all along.
Early-exercising NSOs and the 83(b) election
Exercise before vesting while the spread is tiny, file an 83(b), and you tax the gain now at a near-zero number instead of later at a big one. The risk is real cash on stock that can go to zero.
NSO exercise calculator
Estimate the spread, the tax, and the cash you actually need to exercise, in four numbers you can do on a napkin.
Multi-year NSO exercise planner
Model exercising in chunks to keep each year out of the top bracket, using a bracket-headroom worksheet you can build by hand.
Case study: an advisor's NSOs taxed on a 1099
No employer withholding meant the entire tax bill on the spread came due at filing, with nothing set aside.
Case study: spreading NSOs across three years
How staging exercises across three years kept one engineer out of the top bracket and saved five figures.
Case study: exercising NSOs during a sabbatical
A year off dropped the bracket, and a planned NSO exercise rode the savings down with it.
ESPPs
ESPP reporting: Form 3922, Form 8949, and the basis fix
The form your employer sends, the forms you file, and the one adjustment that keeps you from paying tax on your discount twice. A full walkthrough with a worked example and a pre-sale checklist.
How an ESPP works: the complete guide
An employee stock purchase plan lets you buy company stock at a discount, often with a lookback that quietly doubles the deal. For most people who have one, it is the best return available at work, and this is the whole story of how it runs.
Is maxing out your ESPP worth it
With a real discount and a quick sale, an ESPP is often the highest-return benefit you have. This is the whole playbook: whether to max it, how to fund it, when to sell, and the rare case for holding.
The ESPP mistakes that quietly cost you money
From selling a few days early to paying tax twice on your discount, the ESPP punishes small oversights. Here is the full list of the traps and how to dodge each one.
Case study: two years of ESPP, two outcomes
Same plan, same employee. One year she sold at purchase. The next year she held for the tax break. Here is which one came out ahead.
Should you fund your ESPP or hold cash for RSU taxes
When the ESPP and your RSU tax bill compete for the same paycheck, one of them is a near-certain return and the other is a bill you already owe. That settles the order.
How to fund a maxed ESPP without the cash on hand
Maxing the plan means a chunk of every paycheck vanishes for months before you see stock. Here is how to bridge that gap without taking on risk that eats the discount.
ESPP vs 401(k): where should the next dollar go
Both are good. They do different jobs, and the order you fund them in can leave real money on the table. Here is the priority I use.
ESPP return calculator
See the annualized return on your ESPP after the discount, lookback, and tax.
ESPP cost basis adjustment calculator
Work out your corrected basis so you do not pay tax on the discount twice.
Case study: catching the ESPP double-tax before filing
One filer almost paid tax twice on the same discount. The fix was one number on one form, and it saved him about $4,000.
Keeping ESPP shares from concentrating your portfolio
The discount is real, but every share you keep stacks more of your net worth on the one stock that already signs your paycheck. Here is how to take the deal without taking the bet.
Hybrids & more
How SARs and phantom stock are taxed
Cash-settled equity looks like stock and gets taxed like salary. The whole payout is ordinary income the day it lands, there is no capital gains door, and the only real lever you have is timing.
When cash-settled equity beats real shares
Real shares win on taxes almost every time. So why take SARs or phantom stock, and once you have them, how do you plan a payout you mostly cannot control?
A phantom stock payout at a private company
An executive watched her phantom units pay out at a sale, then learned the whole check was wages. A walk through what landed, what was withheld, and what she owed.
How SARs and phantom stock show up on your W-2
Both land in your wages, taxed like a bonus, and the withholding usually falls short of what you owe.
QSBS
What makes stock qualify as QSBS
QSBS is not a label you choose at sale. It is a stack of conditions your stock had to meet the day it was issued: the right entity, a small-enough company, original issuance straight from the company, a qualifying business, and a long enough hold.
QSBS (Section 1202): the complete guide
Qualified small business stock can erase the federal tax on a startup-stock sale, sometimes the whole thing. This is the full story: which rules apply to your shares, how the exclusion is sized, the holding clock, and the per-issuer cap that decides how much you actually shelter.
How people accidentally blow their QSBS
Most QSBS gets lost by accident, not by bad luck. A redemption, an early sale, the wrong entity, a secondary purchase, or missing records can quietly kill a break worth more than the mistake ever felt at the time.
Planning around QSBS: setup, stacking, and the 1045 rollover
The QSBS exclusion is mostly decided at the moment you get the stock, not the moment you sell. This is the planning playbook: lock in qualification early, multiply the cap with gifts and trusts, and use a Section 1045 rollover to rescue a forced early exit.
Case study: a founder's QSBS exit, mostly tax-free
Five years held, the qualified small business stock exclusion claimed, and a large chunk of the gain off the table. The win was set up at incorporation, not at the sale.
Does your state honor the QSBS exclusion
QSBS is a federal break, and states get a vote. California taxes the gain in full while New York generally follows the federal exclusion, so the same sale can split two ways.
QSBS and California
California ignores the QSBS exclusion entirely. A gain the IRS lets you exclude in full is taxed at up to 13.3 percent by California, and the only real fix is residency, set up years before you sell.