conceptfinanceequitystartupisorsuqsbsstock-optionscatalogUpdated 2026-07-01

Startup Equity Hacks

The employee/founder side of equity comp: grant types, the 83(b) clock, ISO/AMT timing, QSBS, and how to get liquid. Directly relevant to Kevin as a founding engineer at Dedalus Labs. The entity-level mirror is Company Tax Hacks. Reference, not advice — equity tax is genuinely complex and personal; use a CPA.

Verdict key (shared with Finance Hacks): Standard · Strategic · Aggressive · Folklore.

A. Know your grant type (1–5)

  1. ISO (Incentive Stock Option) — No ordinary income at exercise for regular tax; bargain element is an AMT preference item. Qualifying disposition (2 years from grant + 1 year from exercise) → all gain is long-term capital gains. Standard Source: IRC §422, 2026-06-13

  2. NSO (Non-qualified Stock Option) — Spread at exercise is ordinary income (employer withholds); later appreciation is capital gain. Simpler, no AMT, but taxed earlier. Standard Source: IRS, 2026-06-13

  3. RSU (Restricted Stock Unit) — Taxed as ordinary income at vest on the share value. At private companies, usually double-trigger (vest + liquidity event) so you aren't taxed on illiquid shares. Standard Source: IRS, 2026-06-13

  4. RSA / restricted stock — Actual shares granted early (often founders); pair with an 83(b) election. Strategic Source: IRS, 2026-06-13

  5. Profits interest (LLC) — Equity-like upside at a $0 starting value if structured right; capital gains on exit. LLC-specific. Aggressive Source: Rev Proc 93-27, 2026-06-13

B. The 83(b) election (6–8)

  1. File 83(b) within 30 days — On early-exercised options or restricted stock, electing to be taxed now on the (tiny) current spread starts the capital-gains and QSBS clocks. The 30-day deadline is hard — miss it and you can't undo it. Strategic Source: IRC §83(b), 2026-06-13

  2. Early exercise + 83(b) at low FMV — Exercising right after grant, when strike ≈ FMV, means ~$0 taxable spread and converts future upside to long-term gains. Strategic Source: IRS, 2026-06-13

  3. 83(b) downside — If you leave before vesting or the company fails, you forfeit the shares and don't get the tax you prepaid back. Only worth it when the early cost is small. Standard Source: IRS, 2026-06-13

C. Exercise timing & AMT (9–14)

  1. Exercise ISOs early when the spread is small — The AMT bargain element is (FMV − strike). Exercising at a low 409A minimizes or zeroes the AMT hit and starts the LTCG clock. Strategic Source: IRC §422, 2026-06-13

  2. The AMT trap — Exercising and holding ISOs can trigger a large AMT bill on paper gains with no shares sold to pay it. Model AMT before exercising illiquid stock. Standard Source: IRS Form 6251, 2026-06-13

  3. Exercise up to the AMT crossover — Each year, exercise only enough ISOs to stay just under the AMT threshold; spread exercises across multiple tax years. Aggressive Source: compiled from equity-planning practice, 2026-06-13

  4. AMT credit recovery — AMT paid on ISO exercise often becomes a credit usable against regular tax in later years; track Form 8801. Strategic Source: IRS Form 8801, 2026-06-13

  5. Cashless / net exercise — Use some shares to cover strike + taxes when you lack cash, accepting a smaller position (and ordinary income for NSOs). Standard Source: compiled, 2026-06-13

  6. Exercise before the 409A jumps — A new 409A valuation after a fundraise raises FMV and the AMT spread; exercising before a priced round can be far cheaper. Strategic Source: compiled, 2026-06-13

D. QSBS — the founder/early-employee jackpot (15–19)

  1. QSBS §1202 exclusion — C-corp stock held 5+ years, acquired at original issue from a company under the gross-asset threshold, can exclude a large chunk of gain from federal tax. Strategic Source: IRC §1202, 2026-06-13

  2. Start the 5-year clock early — Exercising options sooner (with 83(b)) begins QSBS holding earlier; unexercised options don't count as stock. Strategic Source: IRC §1202, 2026-06-13

  3. QSBS stacking / gifting — Gifting shares to family members or non-grantor trusts can multiply the per-taxpayer exclusion cap. Done with counsel. Aggressive Source: IRC §1202, 2026-06-13

  4. 2025 rule changes — Recent legislation introduced tiered exclusions for newly issued stock (partial at 3–4 years, full at 5) and raised the cap and asset threshold for stock acquired after mid-2025. Eligibility depends on your shares' vintage — verify with a CPA. Strategic Source: 2025 tax legislation; verify, 2026-06-13

  5. Confirm eligibility at issuance — QSBS status is set when shares are issued (entity type, asset level, qualified trade). Get a QSBS attestation letter from the company. Standard Source: IRC §1202, 2026-06-13

E. Getting liquid & managing risk (20–28)

  1. Double-trigger RSUs — At private companies these only tax at a liquidity event; understand whether your IPO/acquisition triggers a big ordinary-income (and withholding) event. Standard Source: IRS, 2026-06-13

  2. Sell-to-cover at vest/IPO — Default RSU withholding (often 22% supplemental) can underwithhold high earners; set aside extra to avoid an April surprise. Standard Source: IRS, 2026-06-13

  3. Secondary sales / tender offers — Company-sanctioned tenders or secondary markets (Forge, EquityZen) let you sell pre-IPO shares; mind right-of-first-refusal and tax. This is the seller side of Pre-IPO & IPO Access Hacks (the buyer side). Strategic Source: compiled, 2026-06-13

  4. Negotiate the post-termination exercise window — The default 90-day window forces a buy-or-lose decision when you leave. Some companies extend it to 5–10 years — ask at offer stage. Strategic Source: compiled, 2026-06-13

  5. Diversify concentrated stock — One company being both your paycheck and your portfolio is the core risk; trim on liquidity to a position you can stomach going to zero. Standard Source: compiled from Personal Finance, 2026-06-13

  6. Donate appreciated shares — Gifting pre-IPO or post-lockup appreciated stock to a donor-advised fund avoids capital gains and yields a deduction (see Individual Tax Hacks). Strategic Source: IRS, 2026-06-13

  7. 10b5-1 plan (once public) — Pre-scheduled sale plans let insiders diversify on autopilot without trading-window/insider-trading risk. Standard Source: SEC Rule 10b5-1, 2026-06-13

  8. Mind lockups & blackout windows — Post-IPO lockups (~90–180 days) and quarterly blackouts constrain when you can actually sell; plan cash needs around them. Standard Source: compiled, 2026-06-13

  9. Read the strike/vesting/cliff terms — Standard is 4-year vest, 1-year cliff; know your acceleration (single/double-trigger) on acquisition before you need it. Standard Source: compiled, 2026-06-13

Not advice

Equity taxation (AMT, QSBS, RSU withholding) is among the most personal and fastest-changing areas of the code — the 2025 QSBS changes are a live example. Model your specific grants with a CPA before exercising or selling.

Concept Position

Field Value
Concept family Design engineering and interface quality
Concept owned The employee/founder side of equity comp: grant types, the 83(b) clock, ISO/AMT timing, QSBS, and how to get liquid. Directly relevant to K...
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Timeline

  • 2026-07-01 | Concepts category refresh added this page to the Design engineering and interface quality family, linked it to Concept System Map, and kept it standalone because it owns this reusable mental model: The employee/founder side of equity comp: grant types, the 83(b) clock, ISO/AMT timing, QSBS, and how to get liquid. Directly relevant to K... Source: User request, 2026-07-01
  • 2026-06-13 | Created when Kevin asked for a couple more finance hack collections. Scoped to the employee/founder equity side (complements entity-level Company Tax Hacks); relevant to Kevin's Dedalus Labs founding-engineer equity. Filed under Finance Hacks. Source: User, 2026-06-13

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