The LOI Tax Review: What Your CPA Should Check Before You Sign That Letter of Intent

Your business is on the market. After months of preparation, you have a serious buyer and a formal offer. The Letter of Intent (LOI) sits on your desk with an attractive purchase price — $15M, $25M, $40M+. Your broker is pushing for your signature and your attorney is reviewing terms.

What most business owners don't realize: the deal structure in that LOI can cost you $2–5 million in unnecessary taxes — and that's just the immediate hit. At 7% growth over 10 years, that tax leakage becomes $10M+ in lost future wealth.

Most CPAs think compliance-first: "Let me know when you sell and I'll calculate what you owe." We think architecture-first: "Let's stress-test the structure before you're locked in."

Many CPAs wait until after the LOI is signed and treat tax review as a compliance exercise: "Here's what you'll owe at closing." By then it's often too late. The deal structure is locked and the tax outcome is fixed.

At O'Brien Panchuk, we see this repeatedly. Owners bring us a signed LOI and ask, "What's my tax bill?" The answer is often devastating — and avoidable. We've restructured deals to save clients $1.5M to $7M+ in taxes, but only when we're engaged before signature.

This is why our Total Net Worth Architecture starts with structural stress testing — we model what breaks at exit before you're in the room with a buyer.

Why the LOI Determines Your Tax Outcome

Taxes aren't decided when you file the year-end return — they're largely determined the moment you sign the LOI. The LOI sets the framework (asset vs. stock sale, payment timing, earnouts, allocation among assets) that is extremely difficult to unwind. Courts and IRS positions generally respect the agreed structure; retroactive recharacterization is rare and risky.

Example: A client with a C-corp structure faced a projected $7–8M tax bill on a $20M sale (35–40% effective). We restructured, implemented QSBS planning, and executed a stock sale with installment elements. The final outcome: a $24M sale with an effective tax rate under 15% — a $5M+ delta. This had to be done before any LOI was signed.

Five LOI Elements That Determine Your Tax Bill

1. Asset Sale vs. Stock Sale

Asset sale (often worse): buyer purchases assets; depreciation recapture taxed at ordinary rates (up to 37%); possible double taxation for C-corps; limited installment options; QSBS difficult.

Stock sale (often better): buyer purchases ownership interest; capital gains treatment (max ~23.8% federal); QSBS exclusion potential; full installment availability; cleaner structure.

Real example: An LOI for an $18M manufacturing business specified an asset sale. Depreciation recapture alone would have cost $340K. Negotiating a stock sale avoided that tax entirely.

2. QSBS (Section 1202) Qualification

Qualified Small Business Stock (QSBS) can exclude up to $10M of federal capital gains, but rules are strict:

• Original issuance of stock
• C-corporation for the entire holding period
• Active trade or business
• Five-year holding period
• Gross assets under $50M at issuance

QSBS planning must happen well before the LOI. For example, converting an LLC to a C-corp too late won't yield QSBS benefits.

Critical: California does NOT conform to Section 1202; state tax (up to 13.3%) still applies even if federal QSBS exclusion is obtained. For high-value California exits, we model residency timing strategies, but these require genuine moves and 12+ months of planning.

3. Installment Sale vs. Lump Sum

Payment timing affects whether you can spread tax over years.

Benefits of installments:

• Defer tax and possibly lower effective rates
• Allow proceeds to earn returns while tax is deferred

Requirements for installment treatment must be contemplated in the LOI (e.g., at least one payment after the sale year; restrictions on the percentage received in the year of sale for recapture items; buyer creditworthiness and imputed interest rules apply).

4. Earnouts and Contingent Payments

Earnouts can convert capital gains to ordinary income or create state sourcing issues if mischaracterized.

Bad example: An earnout structured as "consulting payments" converted $3M of potential capital gains into ordinary income, adding a $400K+ tax hit.

Best practice: clearly make contingent payments part of purchase price, preserve capital gains treatment, and plan state sourcing.

5. Asset Allocation and Purchase Price Assignment

How the purchase price is allocated (goodwill, inventory, equipment, covenant not to compete, real estate) drives tax treatment and recapture exposure.

Real example: Moving $500K from "covenant not to compete" (ordinary income) to "customer relationships" (capital gains) saved $66K in tax.

California Complication

California's nonconformity to federal QSBS means large federal exclusions don't eliminate state tax. Sophisticated planners sometimes use residency-timing strategies to avoid California tax, but these require genuine residency changes, careful documentation, and must be implemented well before the LOI.

Multi-Entity Complexity

When a sale involves multiple entities (operating company, real estate holding company, parent/subsidiary structures), each entity's sale needs separate analysis and planning.

Example: splitting a $20M LOI into a stock sale for the operating business and a 1031 exchange for real estate deferred nearly $3M in taxes.

Timing: Why "Clean Up Later" Fails

• Legal precedent and economic-substance rules prevent easy retroactive changes
• Buyer expectations make late changes difficult
• Complex strategies require months, not days, to implement

We've seen clients spend four months renegotiating after signing an LOI; avoidable if tax review had happened earlier.

LOI Tax Review Process

Initial structure analysis (30 minutes): asset vs stock, payment timing, multi-entity issues, preliminary tax estimate.

QSBS and exclusion assessment (30 minutes): historical review, trust strategies, California planning.

Alternative structure modeling (60 minutes): compare multiple structures, federal and state impact, net proceeds.

Implementation roadmap (30 minutes): entity changes, elections, documentation, coordination with counsel.

Total time: ~2.5 hours. Typical savings: $500K to $5M+. ROI often huge.

Red Flags in LOIs

• "Seller will provide transition consulting services" — may convert capital gain to ordinary income
• "Purchase price subject to final asset valuation" — creates allocation uncertainty
• "Buyer assumes all liabilities" — may force an asset sale
• "Earnout based on seller performance" — risk of ordinary income
• "Closing within 30 days" — insufficient time for planning
• "As-is sale with standard reps and warranties" — limits structural changes

Post-LOI Execution

Once an LOI is signed with a tax-optimized structure, work includes:

• Entity restructuring (LLC→C-corp, multi-entity reorgs)
• Elections (Section 338(h)(10), installment elections)
• Documentation (QSBS, residency)
• Closing coordination (allocation, final projections, estimated tax payments)

When It's Too Late vs. When There's Still Time

Too late:

• LOI signed with unfavorable structure
• Due diligence closed or purchasing agreement imminent
• Buyer financing contingent on specific structure

Still time:

• LOI unsigned or in early negotiation
• LOI is nonbinding and due diligence window remains (60+ days)
• Buyer open to structural changes

Real Results

Max Panchuk (CPA/ABV): $7M→$24M exit restructuring and multi-trust QSBS strategies over three years — reduced tax rate from 40%+ to under 15%.

Tom O'Brien (CPA/CVA): $1.5M audit defense and business valuation optimization — strong documentation defeated IRS challenge.

FIRPTA optimization: Withholding reduced from 15% to 3%, saving clients $20K–$500K at closing.

Multi-trust QSBS: Multiple $10M exclusions saved $4.76M federal tax on a $50M+ sale.

FAQ

Can we fix taxes during due diligence? Major structural changes are hard after LOI signing.

What's the investment? LOI review: $2,500–$5,000. Average client saves $500K–$5M+. The review typically pays for itself within the first quarter.

If my CPA says "looks fine"? That often means "I can prepare the return," not "the structure is tax-optimized."

Can QSBS be done after LOI? No — QSBS requires long-term structural criteria that must be in place years before sale.

How long to implement recommendations? Simple changes: 1–2 weeks. Complex restructuring: 30–90 days.

What if the buyer refuses changes? We propose tax-neutral or buyer-beneficial modifications; many suggestions actually simplify the deal structure.

Do you coordinate with existing advisors? Yes — we work directly with your attorney, broker, and existing CPA.

Do strategies apply to real estate sales? Yes — 1031 exchanges, DSTs, installment saes, and other real estate strategies often apply.

Bottom line: Two hours of LOI tax review before signature can regularly save $1M–$5M+ in immediate taxes — and $10M+ in compounded future wealth.

Don't Sign an LOI Without a Tax Review

The difference between a compliance CPA who calculates your tax bill after the deal is done and an advisory CPA who stress-tests the structure before you sign can be millions of dollars in net proceeds.

Schedule a 45-minute Strategy Call with our team to analyze your LOI, model alternative structures, and identify concrete tax-optimization opportunities that can increase your net proceeds. The right review before signature could save you millions.

[Schedule Your Exit Strategy Review →](tel:949-399-1040)

O'Brien Panchuk LLP — Irvine: (949) 399-1040 | Palm Desert: (760) 851-0056

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