The moment a founder signs a letter of intent, the negotiating leverage in a business sale shifts from seller to buyer, and several of the highest-value planning windows close for good. Most of an LOI’s terms, price, structure, timeline, are explicitly non-binding and can still move during due diligence. The exclusivity clause is the exception: once signed, it typically locks the founder out of talking to any other buyer for 30 to 90 days, with no equivalent commitment forcing the buyer to close.
This guide covers what an LOI actually locks in, why the signing date functions as a planning deadline rather than just a milestone, the specific tax-planning window that closes at signing, and what founders should have in place before they sign.
Quick Answer An LOI’s exclusivity clause, not its price or terms, is what founders should plan around. Signing it starts a 30-to-90-day window where the founder cannot solicit other buyers, while the buyer faces no equivalent obligation to close at the stated terms. Certain tax and estate planning strategies, most notably gifting or stacking Qualified Small Business Stock (QSBS) exclusions across family members, generally need to happen before the LOI or term sheet is signed, not after. Founders are best served by having their personal financial plan, tax strategy, and advisory team in place before signing, not once due diligence has already begun. |
What an LOI Actually Locks In
An LOI is a short document, typically three to eight pages, that records a buyer’s proposed price, deal structure, and timeline before either side commits to a binding purchase agreement. 1 The important distinction founders often miss is that almost none of it is enforceable. The headline price, the deal structure, and the closing timeline can all still move during due diligence; the buyer is not legally bound to close at the number written on page one. 2
What generally is binding: exclusivity (the no-shop clause), confidentiality, and allocation of certain expenses. 1,3 Everything else exists to frame the negotiation, not to guarantee an outcome.
Typically Non-Binding | Typically Binding | |
Purchase price | Yes — subject to change during diligence | |
Deal structure (asset vs. stock) | Yes | |
Closing timeline | Yes | |
Exclusivity / no-shop clause | Yes | |
Confidentiality | Yes | |
Expense allocation | Yes |
Why the Signing Date Is a Planning Deadline
Before an LOI, a founder is typically negotiating with more than one interested party, and that competition is part of what produced the price. 4 Once exclusivity is signed, that competitive dynamic disappears; the buyer becomes the only party at the table and knows it. 4 Sellers commonly describe this as the point where the deal “can only get worse,” since further leverage runs one direction. 2
That shift in leverage is precisely why counsel and financial advisors are best brought in at the LOI stage, not afterward. Ambiguous language cleaned up before signing costs only attention. The same ambiguity discovered later, once exclusivity is in place and the purchase agreement is being drafted, tends to cost the founder money instead. 2
The QSBS Planning Window That Closes at Signing
For founders whose company stock may qualify as Qualified Small Business Stock under Internal Revenue Code Section 1202, the signing date carries a second, distinct significance beyond deal leverage. Section 1202 allows a non-corporate taxpayer to exclude a portion, potentially all, of the gain from selling qualifying stock held more than five years, up to the greater of a set dollar cap or ten times the taxpayer’s basis in the stock. 5,6
One of the more overlooked planning strategies involves gifting shares to family members or trusts before a sale, since a recipient of gifted QSBS generally steps into the donor’s holding period and basis, and the exclusion cap applies separately to each individual taxpayer holding the stock. 7 Gifting shares across several family members can multiply the total exclusion available to the family as a whole, but the specific documentation needed to support that position, evidence that the transfer occurred before the LOI or term sheet, generally needs to exist before signing, not be reconstructed afterward. 5
This is a specialized strategy with real complexity: gifting an interest in a partnership that holds QSBS, rather than gifting the underlying stock directly, can eliminate the benefit entirely, and gift tax consequences need to be weighed alongside the income-tax upside. 6,7 It requires coordination among the founder’s tax counsel, estate planning attorney, and financial advisor, ideally well before a term sheet is on the table.
What Founders Should Have In Place Before Signing
A current estimate of after-tax proceeds. Founders frequently anchor their expectations to the headline price in an LOI without first modeling what actually reaches them after transaction costs, tax character, and deal structure are factored in.
A coordinated advisory team. The M&A advisor negotiating the deal, the tax counsel evaluating QSBS and other structuring questions, the estate planning attorney handling any gifting strategy, and the financial advisor modeling the proceeds should be working from the same set of facts, not operating in separate conversations that only get reconciled after the fact.
Documentation of any pre-sale gifting or estate planning, dated before signing. Once exclusivity begins, the window to establish that a transfer was genuinely completed before the transaction became imminent narrows considerably.
A personal financial plan for the proceeds themselves. Investment allocation, retirement income planning, and any relocation or residency considerations are easier to think through before a 30-to-90-day exclusivity clock is running than during it.
Common Mistakes Founders Make Before Signing
Treating the headline price as final. Since price and structure are typically non-binding, anchoring major personal decisions to the LOI number before due diligence concludes can create a mismatch between expectations and outcome.
Waiting until after signing to engage a financial advisor. By the time exclusivity begins, the QSBS gifting window and several other planning strategies may already be closed.
Underestimating the exclusivity clause. Founders sometimes focus their negotiating attention on price and overlook the length and terms of the no-shop provision, which is the part of the LOI most likely to actually bind them.
Assuming legal counsel review at the purchase agreement stage is sufficient. Concessions made in the LOI generally flow downstream into the purchase agreement, where the buyer’s counsel will hold the founder to them. 2
Frequently Asked Questions
Have a coordinated advisory team in place, tax counsel, an estate planning attorney if gifting strategies are relevant, an M&A advisor, and a financial advisor, along with a realistic estimate of after-tax proceeds and any pre-sale gifting or QSBS documentation completed before signing.
Mostly not. Price, deal structure, and timeline are typically non-binding and can change during due diligence. The exclusivity clause, confidentiality provisions, and expense allocation are typically the binding parts.
Commonly 30 to 90 days, though buyers frequently push for longer, particularly for larger transactions requiring more extensive due diligence.
Gifting Qualified Small Business Stock to family members before a sale can multiply the total Section 1202 exclusion available to the family, since each recipient's exclusion cap applies separately. Documentation showing the transfer occurred before the LOI or term sheet is part of what supports that position.
Waiting until after signing to bring in financial and estate planning advisors. By that point, the exclusivity clock is running and some of the highest-value planning windows, particularly around gifting and QSBS stacking, have already closed.
Where This Fits Into a Broader Financial Plan
An LOI is often the first moment a pending sale starts to feel real, and it’s also the moment several planning windows begin closing whether or not a founder has used them yet.
At Moran Wealth Management, we work with founders and business owners before a transaction reaches this stage, coordinating with the CPAs, estate planning attorneys, and M&A advisors already involved so that tax strategy, gifting decisions, and the founder’s broader financial plan are aligned before exclusivity begins, not reconstructed afterward. As a fee-only, fiduciary registered investment adviser, we do not receive commissions or product incentives, and we do not provide legal or tax advice directly; that remains with the founder’s own counsel and CPA.
If a sale is on the horizon, even informally, schedule a complimentary consultation before an LOI is on the table.
You can also reach out through our contact page, call 239-920-4440, or email info@moranwm.com.
Moran Wealth Management is a registered investment adviser with the U.S. Securities and Exchange Commission (SEC). Registration does not imply a certain level of skill or training. For more information about our services, fees, and potential conflicts of interest, please refer to our Form ADV Part 2A, available upon request.
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We do not provide tax or legal advice; please consult your CPA, attorney, or registered tax professional for individualized tax or legal advice.
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Sources
[1] Letter Of Intent In Business Sale: A Complete 2026 Guide, Iconic.
[2] “The Letter Of Intent Isn’t A Done Deal: What Every Seller Needs To Know Before Signing”, Mondaq.
[3] “M&A Letter of Intent (LOI) Guide”, Gordon Law Group.
[4] “Letter of Intent Acquisition 2026: 9 Terms and the No-Shop Trap”, Papermark.
[5] “Section 1202 QSBS Checklist: Qualification, Timing, and Documentation (2026)”
[6] 26 U.S. Code § 1202 — Partial exclusion for gain from certain small business stock, Office of the Law Revision Counsel.
[7] “Have Qualified Small Business Stock? Consider Section 1202 as Part of Your Estate and Trust Planning”, BDO USA.