Term Sheet vs LOI: Key Differences and When to Use Each

You've just received what looks like two very similar documents from two different investors — one calls it a "term sheet," the other calls it a "letter of intent." Both seem to outline the basics of a deal. Both say they're non-binding. So what's the difference, and does it actually matter which one you sign?

It matters more than most founders realize. Mixing up these documents — or treating them as interchangeable — can lead to misaligned expectations, wasted legal fees, and deals that fall apart at the finish line. Here's a clear breakdown of term sheets versus LOIs: what each one is, how they function in a financing context, and when each is the right tool for the job.

What Is a Term Sheet?

A term sheet is a document that outlines the key financial and governance terms of a proposed investment. It's the starting point for a formal equity financing round — whether that's a seed round, Series A, or later-stage raise.

When an investor hands you an investment term sheet, they're essentially saying: "Here's how we propose to structure our investment in your company." The term sheet for investors typically covers:

• Valuation — pre-money valuation, post-money valuation, and implied ownership percentages
• Investment amount — how much capital is being deployed and in what structure (equity, SAFE, convertible note)
• Security type — preferred stock, common stock, or a convertible instrument
• Liquidation preferences — what investors get paid back first in an exit scenario, and how
• Pro-rata rights — the right to participate in future rounds to maintain ownership percentage
• Board composition — how many seats each party controls post-investment
• Anti-dilution provisions — protections for investors if future rounds occur at a lower valuation
• Voting rights and protective provisions — what decisions require investor approval
• Founder vesting schedules — often reset or modified at this stage

A typical venture-backed term sheet runs two to five pages. More complex rounds with multiple investors or unusual structures can push that to ten or more pages.

Is a Term Sheet Binding?

Here's where founders often get confused. A term sheet is almost always described as non-binding — meaning neither party is legally obligated to complete the transaction just because they've signed it. However, that doesn't mean it's entirely without teeth.

Most term sheets contain two provisions that are legally binding:

1. Exclusivity (or "no-shop") clause — Once signed, you typically agree not to solicit or entertain other investment offers for a defined period, usually 30 to 60 days.
2. Confidentiality — Both parties agree not to disclose the terms of the deal publicly.

Breaking the no-shop clause can expose a founder to legal liability, even if the rest of the term sheet is non-binding. Read that section carefully before signing anything.

What Is a Letter of Intent (LOI)?

A letter of intent, or LOI, is a broader document used to signal serious intent to enter into a transaction. While term sheets are primarily an investor tool used in equity financing, LOIs appear across a wider range of deal contexts:

• Mergers and acquisitions (M&A)
• Strategic partnerships and joint ventures
• Commercial real estate transactions
• Distribution or licensing agreements
• Late-stage growth investments

In the startup world, you're most likely to encounter an LOI during an acquisition process — when a potential acquirer expresses interest in buying your company — or during a strategic partnership negotiation where both parties want to define the high-level terms before engaging lawyers to draft full agreements.

An LOI tends to be more flexible in structure than a term sheet. It may be written as a formal legal document or as a detailed business letter. The contents vary widely based on the transaction type, but in an M&A context, an LOI might include:

• Purchase price or valuation methodology — how the acquirer intends to value the company
• Deal structure — cash, stock, earnout, or some combination
• Conditions to closing — due diligence requirements, regulatory approvals, financing contingencies
• Exclusivity period — similar to a term sheet, often 45 to 90 days
• Representations and warranties — high-level expectations around what the seller is guaranteeing
• Key employee retention — whether founders and executives are expected to stay post-acquisition
• Timeline to closing — expected milestones and deadlines

Is an LOI Binding?

Like a non-binding term sheet, an LOI is generally non-binding on the core deal terms. The intent is to get alignment at a high level before spending significant time and money on legal documentation and due diligence.

However — and this is critical — some LOIs include binding provisions beyond confidentiality and exclusivity. These might include an obligation to negotiate in good faith, specific break-up fee arrangements, or binding representations about financial information already shared. Always have legal counsel review an LOI before signing, because "non-binding" is never a blanket protection.

Term Sheet vs LOI: Side-by-Side Comparison

When Founders Should Expect a Term Sheet

If you're raising a priced equity round — a Series A or beyond — you should expect to receive an investment term sheet from any serious investor. This is the standard tool in venture capital financing. It signals that the investor has done enough due diligence to feel comfortable outlining the terms under which they'd invest.

In term sheet finance, the document also serves a coordination function when you have multiple investors participating in a round. A lead investor typically sets the terms, and other investors either match those terms or negotiate from that anchor.

You should insist on a term sheet when:

• An investor verbally commits to leading your round
• You're being asked to stop fundraising conversations with others (any request for exclusivity should come with a signed term sheet)
• You're ready to move into formal due diligence and legal documentation

Some early-stage investments use a SAFE (Simple Agreement for Future Equity) or convertible note instead of a full priced round. In those cases, you may not see a traditional term sheet — just the instrument itself, which is already fairly standardized (especially Y Combinator's SAFE). But for any round where equity ownership, board seats, and governance rights are being negotiated, a term sheet is non-negotiable.

When Founders Should Expect an LOI

An LOI typically shows up in two founder scenarios:

1. Acquisition interest — A corporate acquirer or strategic buyer wants to signal serious intent before committing to full due diligence. The LOI defines the deal framework and, critically, locks you into an exclusivity period that prevents you from running a competitive process while they dig into your books. This is why negotiating the exclusivity window and break-up fee provisions in an LOI is just as important as negotiating price.

2. Strategic partnership — A large company wants to co-develop a product, license your technology, or enter a distribution agreement. Before either party spends legal fees drafting a full contract, an LOI ensures both sides are aligned on the commercial fundamentals.

In some cases, particularly in growth equity or late-stage VC, you may see hybrid documents that blend characteristics of both — sometimes called a "term sheet" but structured more like an LOI because the deal complexity warrants it. Don't get hung up on the label. Focus on the substance.

Common Mistakes Founders Make with Both Documents

Treating "non-binding" as "no risk." Both documents contain binding provisions. Violating the no-shop clause in a term sheet or LOI can result in legal action or permanently damaged relationships with investors or acquirers in your market.

Signing without a lawyer. Founders often want to move fast and skip legal review on what seems like a preliminary document. Don't. The terms you agree to in a term sheet or LOI will heavily influence the final deal documents. It's far harder to renegotiate once you've signed.

Ignoring the exclusivity period. A 60-day no-shop clause sounds short until you're three weeks into due diligence with no clear path to closing. Negotiate the length, what triggers an extension, and what happens if the investor walks away.

Failing to align internally. Both documents often include provisions affecting co-founders, existing investors, and key employees. Make sure everyone with a stake in the outcome has reviewed the terms before you sign.

Key Takeaways

• A term sheet is the standard document for structuring an equity investment in a VC context — it outlines valuation, ownership, governance, and investor rights
• An LOI is more common in M&A, strategic partnerships, and broader deal contexts — it signals intent and frames the deal before full legal documentation begins
• Both are generally non-binding on core deal terms, but both contain binding provisions — particularly exclusivity and confidentiality — that carry real legal weight
• In term sheet finance, the document anchors the entire negotiation and sets expectations for the definitive agreements that follow
• Always engage legal counsel before signing either document, and never let the "non-binding" label lull you into treating these as low-stakes paperwork

The difference between a term sheet and an LOI isn't just semantic — it reflects the type of transaction, the relationship between parties, and the legal framework that will govern what comes next. Understanding which document you're looking at, and why, is one of the most practical skills a founder can develop before entering any serious financing or exit conversation.