Youmi Inc. Files Amended S-1: RSU & Capital Gains Tax Exposure Calculator (Sep 29, 2026)

What Changed

Youmi Inc. filed an amended S-1 registration statement with the SEC on September 28, 2026. The 2 MB filing signals the company is progressing toward a public offering, though no pricing range or share count has been disclosed in this amendment. For investors holding pre-IPO equity or considering participation in the offering, this filing resets the timeline and tax planning window.

The Numbers That Matter

| Filing Milestone | Typical Timeline to Pricing | Lock-Up Period Post-IPO | Tax Treatment Shift | |-----------------|-----------------------------|--------------------------|--------------------|| | S-1/A Amendment | 30 to 90 days | 180 days standard | ISO to ordinary income at vest | | Final S-1 | 7 to 21 days | 90 days for early employees (rare) | AMT exposure on spread at exercise | | Roadshow Start | 10 to 14 days | 365 days for founders | Long-term cap gains only after 1 year hold from exercise + 2 years from grant | | First Trade | Pricing + 1 day | Varies by underwriter agreement | Immediate sale taxed at ordinary rates (up to 37% federal) |

What This Means for Your Portfolio

If you hold incentive stock options in Youmi with a current spread of $500K, exercising before the IPO locks in AMT exposure this year but starts your long-term capital gains clock. Waiting until after the IPO to exercise converts that $500K spread to ordinary income taxed at 37% federal plus 13.3% California state (assuming CA residency), a $251,500 tax bill versus $140,000 AMT if exercised pre-IPO. For a $1M position, the delta is $223,000 in additional tax liability by waiting.

Scenario Analysis

Position Size (Spread at Exercise)	Pre-IPO Exercise AMT	Post-IPO Exercise Ordinary Income Tax	Tax Savings from Pre-IPO Exercise
$500K	$140,000	$251,500	$111,500
$1M	$280,000	$503,000	$223,000
$2M	$560,000	$1,006,000	$446,000

Assumptions: 28% AMT rate, 37% federal ordinary income rate, 13.3% California state tax, no deductions phase-out. Does not include 3.8% NIIT on post-IPO sales or potential clawback of AMT credit in future years. Your state tax rate and filing status will shift these figures.

Why This Plays Out This Way

The S-1/A filing does not trigger an immediate tax event, but it narrows your decision window. Once the company prices and begins trading, any unexercised ISOs lose their preferential tax treatment at the moment of exercise. The spread between your strike price and fair market value becomes ordinary income, not an AMT preference item.

For early employees or founders holding large option grants, this creates a liquidity trap. Exercising $1M in options pre-IPO requires $280,000 in cash for AMT, but you cannot sell shares to fund the tax bill until the lock-up expires 180 days post-IPO. If the stock declines 30% during lock-up, your $1M position is now worth $700K, but you paid $280,000 in AMT on phantom gains. The AMT credit recovers over time, but only to the extent your regular tax exceeds AMT in future years.

The alternative is waiting until post-IPO, paying $503,000 on the same $1M spread, but only if you sell immediately. If you hold for long-term capital gains treatment, you need the stock to appreciate 44% just to break even versus the pre-IPO exercise scenario after accounting for the additional $223,000 in tax drag.

Lock-up provisions matter. Standard 180-day lock-ups mean your first sale opportunity is March 2027 if Youmi prices in late October 2026. Early employee carve-outs (10% to 25% of shares released at 90 days) are negotiated case-by-case and rarely disclosed in the S-1/A. Assume 180 days unless your equity agreement specifies otherwise.

Understanding Your Options

Three main scenarios exist for managing this transition. The first is to exercise before IPO pricing and pay AMT in the current year. The second is to wait until after IPO and exercise immediately, accepting ordinary income tax rates. The third is to hold shares through the lock-up period and benefit from long-term capital gains rates if the stock appreciates sufficiently. The break-even stock price movement between scenarios becomes your key decision variable. For a $1M position, if you expect the stock to appreciate more than 44% from IPO price to lock-up expiration, the post-IPO exercise with long-term hold can prove advantageous despite the higher initial tax. If you expect flat or negative movement, pre-IPO exercise typically dominates.

For positions over $500K, a tax advisor should review your AMT credit carryforward strategy and whether splitting the exercise across two tax years reduces total liability. California residents should model the impact of moving to a zero-income-tax state before exercise, which eliminates the 13.3% state hit but requires genuine domicile change, not just a mailbox.

The Scenario You Have Not Modeled

If Youmi withdraws the S-1 or delays pricing beyond Q1 2027, your pre-IPO exercise AMT paid in 2026 remains outstanding with no liquidity event to offset it. You will carry an AMT credit forward, but it only reduces future tax bills when regular tax exceeds AMT. For high earners already in AMT every year, that credit sits unused indefinitely. The risk is binary: exercise now and the deal falls through, or wait and pay double the tax if it prices.

Frequently Asked Questions

Q: Does the S-1/A filing change the 409A valuation used for my strike price? A: No. Your strike price is locked at the 409A valuation on your grant date. The S-1/A affects timing, not strike price.

Q: Can I sell shares immediately after the IPO to cover my AMT bill from a pre-IPO exercise? A: Only if you are not subject to a lock-up agreement. Most employees face 180-day lock-ups. Verify your equity agreement.

Q: What happens to my AMT credit if I move out of California after exercising but before the IPO? A: Federal AMT credit carries forward regardless of state. California does not allow AMT credit carryforward, so timing your move matters.

Q: How long after the S-1/A does pricing typically occur? A: 30 to 90 days for most filings. Youmi's timeline depends on SEC comments, market conditions, and underwriter roadshow scheduling.

Important Disclaimer

This article is for informational purposes only and does not constitute professional financial, tax, or legal advice. Decisions regarding ISO exercise, AMT exposure, and timing should be made in consultation with a qualified tax advisor or financial professional who understands your specific circumstances, income level, state of residence, and long-term financial goals. Tax laws are subject to change, and individual situations vary significantly.

Run the Numbers

Use CalcMoney's Calculate Your After-Tax RSU Proceeds to model your exact ISO spread, AMT exposure, and break-even hold period under current federal and state tax rates.

Run the Numbers: Capital Gains Tax Terminal on CalcMoney — see your exact figures under current market conditions.

Data sourced from SEC EDGAR S-1 Filings (IPO). Rates and thresholds are for informational purposes only. Consult a licensed financial advisor before making mortgage, investment, or tax decisions.

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