For Bay Area business owners considering a sale · 11 min read
Key Takeaways
- Asset sales favor the buyer (step-up in basis, faster depreciation); stock sales favor the seller (one layer of capital gains tax, no recapture)
- A §338(h)(10) or §336(e) election lets a stock sale be taxed as an asset sale — bridging the buyer/seller divide and unlocking purchase-price flexibility
- California taxes capital gains at ordinary rates (up to 13.3%) — your federal LTCG of 23.8% becomes an all-in 37%+ for Bay Area sellers
- QSBS §1202 can exclude up to $10M (or 10× basis) of gain for qualifying C-Corp stock held 5+ years — a transformative benefit for Bay Area tech founders
- Allocate the purchase price intentionally: goodwill is the seller’s friend, working capital and tangible equipment favor the buyer
Selling your Bay Area business is likely the largest financial transaction of your life. The headline number — your purchase price — matters less than the after-tax number that lands in your account. Between federal capital gains (23.8% with NIIT), California state tax (up to 13.3%), and depreciation recapture (up to 37% ordinary), the gap between a poorly-structured sale and a well-structured one is routinely 8-15 percentage points of total proceeds. On a $10M sale, that’s $800K-$1.5M of avoidable tax. This guide walks through the structures Bay Area owners should be modeling with their CPA before signing an LOI.
Asset Sale vs. Stock Sale: The Core Trade-off
In an asset sale, the buyer purchases individual assets (equipment, inventory, customer lists, goodwill) and the seller retains the legal entity. The buyer gets a stepped-up basis in the acquired assets, allowing accelerated depreciation and amortization deductions. The seller faces double taxation if the selling entity is a C-Corp (entity-level gain plus shareholder dividend tax), plus ordinary income recapture on depreciated equipment and depreciated real estate.
In a stock sale, the buyer purchases shares of the corporation. The seller has a clean capital gains transaction at LTCG rates (assuming 1+ year hold). The buyer inherits the corporation’s tax basis in its assets (no step-up) and is exposed to all historical and unknown liabilities of the entity.
Most Bay Area sellers prefer stock sales (one layer of tax, capital gains rates, no recapture). Most buyers prefer asset sales (step-up, no historic liability). The deal terms become the negotiation.
| Factor | Asset Sale | Stock Sale |
|---|---|---|
| Seller tax (S-Corp/LLC) | Capital gain + ordinary recapture | Clean capital gain |
| Seller tax (C-Corp) | Double-tax: corp gain + dividend | Single layer capital gain |
| Buyer tax basis | Step-up to purchase price | Carryover basis |
| Buyer historic liability | Generally not assumed | Assumed |
| Typical Bay Area outcome | Buyer-friendly; lower price | Seller-friendly; higher price |
§338(h)(10) and §336(e): The Best of Both Worlds
When the buyer needs step-up but the seller needs single-layer taxation, a §338(h)(10) election (for S-Corps or subsidiary stock sales) or §336(e) election (broader applicability) lets the parties treat a stock sale as an asset sale for tax purposes. The legal sale is stock; the tax sale is assets. Buyer gets step-up depreciation; seller pays one layer of capital gains tax at the shareholder level.
These elections are particularly powerful for Bay Area S-Corp owners selling to private equity. Without the election, the buyer would discount their offer to reflect lost step-up; with the election, the buyer can fund a premium price out of the present value of future tax savings — and you, the seller, capture some of that premium in the negotiation.
Milestone’s LOI Review
Before you sign a Letter of Intent, we model three scenarios: pure asset sale, pure stock sale, and stock sale with §338(h)(10). The right structure is rarely obvious in the LOI — and changing it after diligence starts is expensive. We bring this analysis to every Bay Area M&A engagement.
QSBS §1202: The Tech Founder’s Trump Card
IRC §1202 — Qualified Small Business Stock — lets founders and employees of C-Corp startups exclude up to $10M (or 10× original basis, whichever is greater) of capital gain from federal tax on a sale of stock held more than five years. For a Bay Area tech founder selling $10M of QSBS-qualifying stock, that’s a $2.38M federal tax savings.
The 2025 budget bill (One Big Beautiful Bill Act) added new tiered exclusion at 3- and 4-year holding periods (50% and 75% respectively) and raised the per-issuer cap. The technical rules are unforgiving: the issuing entity must be a domestic C-Corp with under $75M in gross assets when the stock was issued, must be in an active qualifying trade or business, and the stock must be original issuance (not secondary).
For Bay Area tech founders, QSBS is the single most valuable tax provision in the code — and the most commonly mishandled. Documentation must start at incorporation; you cannot retrofit §1202 eligibility after the fact.
Purchase Price Allocation: Where the Money Hides
In an asset sale (or §338(h)(10) deemed asset sale), the IRS requires both parties to file Form 8594 reporting how the total purchase price is allocated across seven asset classes. The allocation determines the seller’s character of gain (capital vs. ordinary) and the buyer’s recovery period.
Sellers want allocation skewed toward goodwill (capital gain, no recapture). Buyers want allocation skewed toward equipment (5-7 year MACRS recovery) and intangibles ex-goodwill (15-year §197 amortization). The negotiation room here is real — a $5M allocation swing from equipment to goodwill can save the seller $1M+ in tax.
Installment Sales and California Considerations
A §453 installment sale lets sellers defer recognition of gain until cash is actually received — useful when the buyer’s payment is spread across multiple years. The trade-off: California taxes the installment gain at the seller’s state of residence in the year recognized, so moving out of California after the sale but receiving installments later can save significant state tax.
Note the §453(e) related-party rules and the §453A interest charge on installment notes above $5M of contract price. These can dramatically reduce installment sale benefits for larger Bay Area deals.
California Source Income Trap
A Bay Area seller who moves to Nevada or Texas after the sale does not escape California tax on income earned before the move. The Franchise Tax Board’s aggressive sourcing rules treat a portion of the gain as California-source if the underlying business was conducted in California. Pre-sale Nevada residency planning needs to start 2+ years before the closing.
The Bay Area M&A Timeline
A well-prepared Bay Area business sale runs 9-15 months from “consider selling” to wire transfer. The tax structuring decisions concentrate in the first 90 days: pre-sale entity restructuring (S-Corp election, F reorganization, holding company structure), goodwill ownership, founder equity grants, and QSBS analysis.
The cheapest dollar spent on an M&A transaction is the CPA fee in months 1-3. The most expensive dollar is the one not spent — and discovered at signing.
Frequently Asked Questions
My business is an LLC taxed as a partnership. How does that change the sale?
LLC interests can be sold as either capital assets (capital gain) or as a sale of underlying assets (a “deemed asset sale” under §741). Hot assets like inventory, depreciation recapture, and §751 unrealized receivables get re-characterized as ordinary income regardless. The structuring complexity is higher than C-Corp or S-Corp sales — early CPA involvement is critical.
Can I avoid California state tax by moving before the sale closes?
Sometimes, but California aggressively pursues “California source income” claims. The FTB looks at where the business activity occurred, where the seller resided during the value-creation period, and the timing of the move. A 2-year pre-residency change is usually the minimum defensible window for partial avoidance.
What’s the biggest tax mistake Bay Area sellers make?
Failing to clean up the entity structure before going to market. Examples: holding personal real estate inside the operating S-Corp (creates double-tax exposure on sale), commingled C-Corp dividend history, missing §83(b) elections on founder equity, undocumented related-party transactions. These are unfixable after the LOI is signed.
How early do I need to bring in a CPA?
12-24 months before sale is ideal — that gives time to restructure, prepare clean financials with GAAP-style accruals, build a Quality of Earnings file, plan for QSBS holding period requirements, and stage California residency if relevant. 90 days before sale is the minimum useful engagement window.
Related Resources
Planning to sell or acquire a business?
Milestone Certified Public Accountants works year-round with Bay Area business owners, real estate investors, and high-net-worth families. Flat-fee pricing. CPA-led. 24-hour response guarantee.
About the Author
Ronak Bhatt, CPA, MBA
Founder of Milestone Certified Public Accountants in Pleasanton, CA. Ronak leads tax strategy and advisory engagements for Bay Area high-net-worth families, business owners, and real estate investors. Active member of the AICPA and CalCPA, with deep experience in entity structuring, tax planning, IRC §469 passive activity rules, cost segregation, and partnership taxation.
This article is for general information and does not constitute tax, legal, or investment advice. Individual situations vary; please consult a CPA before making tax elections. Milestone CPAs is licensed in California and serves clients across the Bay Area and Tri-Valley.
