What is a Stock Purchase Agreement?
It is used by business buyers, sellers and their advisers who want the terms recorded before work starts or money changes hands, rather than reconstructed from memory afterwards. Putting it in writing is what turns an understanding into something either side can rely on.
18 details are captured across 6 areas: parties and contact details, scope and deliverables, payment and financial terms, dates, timing and duration, confidentiality and intellectual property, and legal protections and risk. Together they fix what the seller owes the buyer, measured in completion conditions rather than in adjectives.
Where these agreements go wrong, it is usually a liability that transferred because nobody excluded it rather than a defect in the boilerplate. Business agreements tend to fail at the edges — deadlock between owners, automatic renewals nobody diarised, and liability caps that turn out to sit above the value of the contract.
Fill in the form and the stock purchase agreement assembles as you type, so you can read the finished wording before you download it. The draft is a starting point built on standard contract structure — it is not legal advice, and for a high-value or unusual arrangement it is worth having an attorney check it against the rules in your state.
What matters most in a stock purchase agreement
Restrictive covenants on the seller
A buyer paying for goodwill needs the seller restrained from competing or soliciting customers. These are enforced more readily in a sale context than in employment.
Asset sale versus share sale
An asset sale lets the buyer pick what to acquire and leave liabilities behind. A share sale transfers the whole entity, history and liabilities included. The tax consequences differ significantly for both sides.
Warranties and disclosure
The seller warrants the state of the business, then discloses exceptions. The disclosure letter is as important as the warranties themselves.
When you need a stock purchase agreement
- When someone else is paying: Where a third party funds or guarantees the arrangement, they should be named and their obligations spelled out. A guarantee that is only implied is not a guarantee.
- When the counterparty is new to you: With no track record between the parties, the written terms do the work that familiarity would otherwise do. That is exactly when precision pays for itself.
- When sensitive information is shared: Confidentiality terms should be signed before disclosure, not after. Information already shared without protection is very difficult to claw back.
- When replacing an earlier arrangement: Issue a fresh stock purchase agreement when the original terms no longer reflect what the parties actually do. Amending informally leaves two inconsistent records of one relationship.
- When ownership of the business being sold matters: State who owns what is produced and at what point ownership passes. Without an express written term, ownership usually stays with whoever created it.
- When more than one person is involved: Where several people share the obligation, the stock purchase agreement should say whether they are liable together, separately, or both. That single word decides who can be pursued for the whole amount.
What to include in a stock purchase agreement
This generator collects 18 details. Here is what each group covers and why it matters when the document is relied on.
Parties and contact details
Get these right before anything else. A dispute over the business being sold is unwinnable if the document names a party that does not legally exist.
- Seller Name
- The full legal name of the seller transferring ownership. The seller should be the party actually holding title.
- Seller Address
- The seller's address for notices and post-sale claims.
- Buyer Name
- The full legal name of the purchaser who will take ownership on completion.
- Buyer Address
- The buyer's address, used on title and registration paperwork as well as for notices.
Scope and deliverables
The description of the business being sold is what turns an extra request into a chargeable variation. Write it so that someone outside the arrangement could tell what is in and what is out.
- Purpose of Agreement
- Why the parties are entering into the agreement. This helps a court interpret ambiguous clauses in line with the parties' actual intent.
- Products or Services
- The goods or services supplied, identified by specification, model or catalogue reference.
- Performance Standards
- The measurable standard the work must meet — response times, quality levels or service metrics.
Payment and financial terms
Write key figures out in full and name the currency. Where the price depends on a count of completion conditions, record that count as you go rather than reconstructing it at invoice time.
- Commercial Terms
- The core business terms — volumes, discounts, rebates, minimum commitments and review points.
- Pricing
- The unit prices or rate card, plus how and when prices may be revised.
- Payment Terms
- The invoicing cycle, payment window, accepted methods and consequences of non-payment.
- Limitation of Liability
- The cap on each party's financial exposure. Note that liability for fraud, death or personal injury generally cannot be excluded.
Dates, timing and duration
Use calendar dates, not relative triggers. "On approval" cannot be located on a calendar, which means it cannot be used to show that anyone is late.
- Effective Date
- The date the agreement takes effect. This can differ from the signature date, and it is the date obligations start running from.
- Delivery Timeline
- Lead times and delivery windows, plus what counts as a late delivery and the remedy for it.
Confidentiality and intellectual property
State the territory, media, term and exclusivity of anything licensed. An unbounded licence is a transfer that was priced as a licence.
- Confidentiality Obligations
- The duty to keep information private, who it may be shared with internally, and the standard of care required.
- Intellectual Property Rights
- Who owns the IP created under the agreement, and what licence the other party receives.
Legal protections and risk
These are the clauses nobody reads until something goes wrong, at which point they are the only clauses that matter.
- Warranties
- The promises each party makes about quality, title and authority, and how long they last.
- Termination Rights
- The circumstances in which each party may end the agreement, distinguishing termination for convenience from termination for breach.
- Governing Law
- The legal system that applies and the courts that will hear any dispute.
Completing this stock purchase agreement
Keeping the version straight
Date the document and mark superseded drafts clearly. Two unlabelled versions in circulation is a surprisingly common cause of genuine, honest disagreement.
Describing the business being sold
The strongest version of this stock purchase agreement describes the business being sold in terms someone outside the deal could check — quantities, completion conditions, dates and standards. Write it so a reader who was not in the room can tell whether it has been done.
Defining completion
Say what has to be true for completion to have happened and who confirms it. An undefined completion test is the reason obligations sit open long after the work is finished.
Not stopping at completion
The warranty period and the escrow standing behind it continues past that point. Give it its own clause, because obligations that are merely assumed to survive often do not.
Filling in every blank
Unfilled placeholders are read against whoever produced the document. If a field genuinely does not apply, write "not applicable" rather than leaving a gap.
Common mistakes to avoid
- Ignoring who owns the output. Say who ends up owning what is produced, and at what point ownership moves. Where nothing is written, ownership usually stays with whoever created it — rarely what the buyer assumes.
- No dispute step before litigation. A short escalation clause — a conversation, then mediation, then proceedings — resolves most disagreements far more cheaply than starting at the end.
- Deposits with no agreed status. Say whether a deposit is refundable, what it secures, and what happens to it if the arrangement ends early. Deposit disputes are among the most common of all.
- Signing before the disclosure letter and the schedule of assets is settled. The agreement leans on the disclosure letter and the schedule of assets, so that needs to be confirmed and attached at signature rather than promised for later. A contract pointing at something nobody has produced yet is an agreement to agree.
- No record of what was handed over. List what passes between the parties and when. Reconstructing that list months later, from memory, is how honest people end up in genuine disagreement.
How to use this stock purchase agreement generator
- Fill in the form. Work down the 18 fields in order. The ones describing the business being sold carry the most weight, so give them more than a few words — everything else in the document refers back to them. Nothing is sent to a server — the document is assembled in your browser.
- Read the preview. Check the preview against the disclosure letter and the schedule of assets. Where the two disagree, the document is the version that will be relied on, so fix it here.
- Download and sign. Download in either format and circulate for signature. Diarise the dates the document creates, particularly anything that has to happen before completion.
Stock Purchase Agreement — frequently asked questions
What is the difference between an asset sale and a share sale?
In an asset sale the buyer acquires selected assets — equipment, contracts, goodwill — and generally leaves the seller's liabilities behind, though contracts usually need consent to transfer. In a share sale the buyer takes the entire company including every existing liability, known and unknown, which is why due diligence and warranty protection matter far more. The tax treatment differs materially for buyer and seller, so take advice before choosing.
How detailed does the stock purchase agreement need to be?
Detailed enough that someone who was not part of the conversation could read it and tell whether each side has done what it promised. That is the standard a court applies, and it is a useful test to run over your own draft before signing.
Does anything survive after the stock purchase agreement ends?
Yes. The warranty period and the escrow standing behind it continues past completion, and confidentiality obligations normally do too. Anything expected to survive has to say so expressly — an obligation that is merely assumed to continue generally does not.
Which state's law should govern this stock purchase agreement?
Choose a state with a genuine connection to the parties or the subject matter — where a party is based, or where the work or property is located. A choice with no connection at all may not be respected, and for property or employment the local state's rules will often apply regardless of what the contract says.
Who owns the work produced under this agreement?
Whoever the agreement says owns it — and if it says nothing, the creator generally does. Paying for work does not transfer copyright by itself. If ownership is meant to pass to the client, the assignment clause needs to say so expressly, and it is common to make the transfer conditional on payment in full.
How long do the confidentiality obligations last?
Ordinary commercial information is usually protected for a fixed period of two to five years after the agreement ends, while genuine trade secrets are often protected for as long as they stay secret. Whichever you choose, state expressly that the confidentiality clause survives termination — otherwise the protection ends with the contract.
Can liability be limited to any amount?
Within limits. Parties can cap ordinary commercial liability, and a cap set against contract value or insurance cover is normal. But liability for fraud, death and personal injury generally cannot be excluded, and a cap so low it makes the obligations meaningless may be struck down as unreasonable.
Does a business contract need to be signed by a director?
It needs to be signed by someone with authority to bind the entity. For a company that is typically a director or an officer with delegated authority; for an LLC, a manager or authorised member. If you are unsure, ask for evidence of authority before relying on the signature.