Late-Stage VP: 4 Years of Accumulated Double-Trigger RSUs in the IPO Year
A VP Engineering at a late-stage pre-IPO company sits on 4 years of double-trigger RSUs as the S-1 filing approaches. Here is the tax waterfall we built.
The VP Engineering of Kindle Analytics, a late-stage pre-IPO data company, joined in 2020. Her grants from 2020, 2021, 2022, 2023, and 2024 total 84,000 double-trigger RSUs. At the company’s most recent tender offer at $98 per share, her position is worth $8.23M on paper. None has been taxed because the liquidity trigger has not fired. In early 2025, S-1 rumors intensified. If Kindle IPOs in 2025, her cumulative 5-year grant of double-trigger RSUs triggers in one tax year, producing a W-2 wage event of $8.2M.
Situation
Her stack:
- Grant 2020: 24,000 DTRSUs, 4-year vest, fully time-vested.
- Grant 2021: 18,000 DTRSUs, fully time-vested.
- Grant 2022 refresh: 16,000, fully time-vested.
- Grant 2023 refresh: 14,000, fully time-vested.
- Grant 2024 refresh: 12,000, partially time-vested (25% cliff plus 1 quarter = 3,750 units). Time-vested units will continue vesting through IPO trigger.
As of June 2025, total time-vested DTRSUs: approximately 75,750.
At an assumed IPO price of $105 (aligned with 2024 tender at $98 plus modest markup), her trigger event produces:
- W-2 income: 75,750 × $105 = $7.954M.
Her 2025 base and bonus: $425k and $150k = $575k. Her combined 2025 W-2 if IPO prints: $7.954M + $575k = $8.53M.
Federal 37% marginal, California 13.3%, Medicare 3.8%, NIIT 3.8% (on non-wage investment income). Combined marginal on W-2 wages above thresholds: 37% + 3.8% + 13.3% = 54.1%.
Tax on $8.53M:
- Federal regular: ~$3.13M.
- Additional Medicare: 0.9% × $8.28M = $74,500.
- California: ~$1.13M.
- Total: $4.34M.
What we modeled
The core problem was cash flow during the IPO event. If withholding defaulted to 22% supplemental (up to $1M, then 37%), the actual withholding would be:
- $1M × 22% = $220,000.
- $7.28M × 37% = $2.69M.
- California supplemental: 10.23% × $7.95M = $813k.
- Total: $3.72M.
Shortfall at tax time: $4.34M − $3.72M = $620k owed April 15, 2026.
She would have no cash reserves to pay $620k unless she sold shares post-lockup. IPO lockup typically 180 days. If IPO prints in Q3 2025, lockup expires Q1 2026. Lockup expiry is immediately before her tax payment is due. Tight.
Second issue: concentration. After the trigger, she would hold 75,750 shares of post-IPO stock worth $7.95M at trigger, minus 36,260 withheld for tax (based on proportional sell-to-cover), leaving 39,490 net shares worth $4.15M. This was 62% of her liquid net worth.
Third issue: §1202 QSBS. Kindle’s DTRSUs are not QSBS because they are equity compensation from a corporation’s equity plan. The shares are issued at vest/trigger, not purchased with cash, so they do not meet §1202(c)(1)(B) “acquired by the taxpayer at original issue from the corporation in exchange for money or other property.” RSU shares are generally not QSBS-eligible. However, her unexercised options (she had 18,000 ISOs at a $12 strike, vested) could potentially qualify for QSBS if exercised and held 5 years, assuming Kindle met the gross-asset test at the time her options were granted.
We ran four scenarios:
| Scenario | IPO year withholding | Post-IPO liquidity plan |
|---|---|---|
| Default 22/37 withholding | $3.72M | Need $620k cash from lockup-expiry sales |
| Custom 37% federal + 13.3% CA withholding | $4.28M | $60k cushion, much easier |
| Custom withholding + 10b5-1 for 30% of shares | $4.28M | Diversifies over 18 months post-lockup |
| Custom withholding + exchange fund contribution | $4.28M | Exchange fund takes 20% of shares for 7-year diversified exposure |
We also modeled pre-IPO tender participation. Kindle had conducted tenders annually since 2022. She had participated in modest amounts. If she tendered 10,000 shares in the expected 2025 pre-IPO tender at $98, she would realize $980k of DTRSU income ahead of the IPO trigger, reducing the IPO-year wage event by the same amount.
What she did
She submitted a custom-withholding election with Kindle’s stock plan admin (E*TRADE) 90 days before the expected trigger: 37% federal and 13.3% California. This was the maximum they would allow.
Separately, she participated in the spring 2025 tender with 8,000 shares, generating $784k of pre-IPO W-2 income. This smoothed the 2025 wage event slightly and provided $380k of after-tax cash she could use for the eventual April tax payment.
She adopted a 10b5-1 plan covering 60% of her post-trigger shares, with monthly sales starting 181 days after IPO. The remaining 40% she committed to hold as concentrated exposure.
At IPO (October 2025, at $109), her trigger produced $7.4M of W-2 income (on the now-67,750 time-vested DTRSUs after the spring tender). Combined 2025 wages including base/bonus/tender/IPO trigger: approximately $8.25M.
Tax at filing: approximately $4.21M. Withheld: $4.14M (custom rate). Owed at filing: $70k, clean.
What she wishes she had done differently
She did not participate in earlier-year tenders aggressively. Kindle had conducted tenders in 2022 ($48 price), 2023 ($72), and 2024 ($88). She participated at $5k, $25k, and $40k respectively. Had she tendered $200k in each year, she would have spread her DTRSU income across 3 years at progressively higher brackets, but each marginal year-of-tender would have been in lower overall bracket because base+tender+etc would have spread the concentrated 2025 event. Rough estimate: spreading $600k of income across 3 earlier years rather than stacking it all into 2025 would have saved approximately $48,000 of federal tax due to bracket arbitrage.
She also did not engage with the pre-IPO §1202 question on her 18,000 ISOs. Had she exercised all 18,000 ISOs in early 2022 (when the 409A was $24), the AMT hit would have been substantial (maybe $80k of AMT at her then-income), but she would have started a 5-year §1202 clock. By 2027 her exercised shares would qualify for QSBS, and if Kindle was sold at a substantial multiple, her ISO-exercised shares could shelter $10M of gain. Instead, by 2025 she had only started the clock on the shares she exercised in late 2024, meaning QSBS eligibility would not land until late 2029.
Third: she underestimated how psychologically hard it would be to sell 60% of her post-IPO shares over 18 months. Watching Kindle rise to $145 in the first 6 months post-IPO, she wished she had not adopted the plan and could have benefited from the appreciation. But the plan was locked in, and in hindsight the 60/40 hold-to-sell split was a reasonable compromise between diversification discipline and concentrated upside.
Fourth: she did not set up a solo 401(k) or other retirement vehicle for her side-consulting income. She had $80k per year of 1099 consulting income that she was reporting on Schedule C but not using to fund retirement. A solo 401(k) could have accepted $23,500 + 20% of net self-employment income as employer contribution, approximately $40k total. Over 4 years that is $160k of pre-tax savings.
Frequently asked
What is a double-trigger RSU and why do pre-IPO companies use them?
DTRSUs require both time-based vesting and a liquidity event (IPO, merger, or qualifying secondary) to produce taxable income. Pre-IPO companies use them to avoid forcing employees to recognize phantom income on shares they cannot sell.
Can I elect 83(b) on DTRSUs?
No. §83(b) applies to restricted stock, not RSUs. RSUs are contractual rights, not property transfers.
Does the trigger event for DTRSUs have to be the IPO?
Plans vary. Most include IPO, merger, and certain qualifying secondaries. Some narrow it to just IPO. Check your specific grant agreement.
Are RSU shares QSBS-eligible?
Typically no. §1202(c) requires shares acquired by original issue in exchange for money or other property. RSU shares are issued for services, not cash. Stock acquired by exercising options is QSBS-eligible if all other requirements are met.
What happens to my DTRSUs if the company is acquired before IPO?
Usually the acquisition qualifies as a liquidity event under the plan’s definition, triggering income recognition. Proceeds are typically paid in cash or acquirer stock, with the same W-2 wage treatment.
Composite scenario drawn from common patterns in our advisor network's casework. Names, companies, and exact numbers are illustrative. Not tax, legal, or investment advice.