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GmbH Purchase Agreement & Letter of Intent: A Practical Guide to LOI, SPA, Warranties, and Closing

Kathrin FischerKathrin Fischer
2026-02-1018 min read

The Letter of Intent sets the deal terms. The Share Purchase Agreement locks them in. Between the two lies the most critical negotiation phase of your GmbH sale. This guide walks you through both documents — what to include, what to negotiate, and what to watch out for.

GmbH Purchase Agreement & Letter of Intent: A Practical Guide to LOI, SPA, Warranties, and Closing

Selling your GmbH is one of the most significant business transactions you'll ever undertake. Two documents are central to this process: the Letter of Intent (LOI) and the Share Purchase Agreement (SPA). Understanding the differences between them, what belongs in each, and how to negotiate key terms can mean the difference between a profitable exit and one filled with legal complications.

This guide will take you through both documents step-by-step, from the initial LOI through to closing, with practical insights on warranties, liability caps, working capital adjustments, and the mechanics that tie everything together.

Part 1: The Letter of Intent (LOI) — Setting the Framework

What is a Letter of Intent?

A Letter of Intent is a preliminary agreement that outlines the key business terms of your GmbH sale. It's the buyer's way of saying, 'We're serious about this deal' and your way of saying, 'Here are our key requirements.' Think of it as a roadmap before the detailed legal document is drafted.

Critically, an LOI is almost never fully binding—though certain elements can be. This distinction is crucial. You need to understand which parts are legally binding and which are merely expressions of intent that will be replaced by the SPA.

Binding vs. Non-Binding Elements

In a typical GmbH sale LOI, the following clauses are usually binding:

  • Exclusivity: The buyer agrees not to negotiate with competitors or alternative sellers during the LOI period—typically 60–120 days
  • Confidentiality: Both parties agree to keep deal information confidential
  • Expense Reimbursement: Who pays for advisors if the deal falls through
  • Dispute Resolution: The framework for resolving disagreements during the process

Non-binding elements typically include:

  • Purchase Price: Subject to change based on due diligence findings
  • Deal Structure: Earnout, cash, seller financing, or combination—still being refined
  • Representations & Warranties: The detailed terms come later in the SPA
  • Closing Conditions: Detailed milestones are locked in the SPA

Typical LOI Structure

A well-drafted LOI includes the following key sections:

SectionWhat It Covers
Purchase Price & StructureHeadline number, payment method, earnout conditions (if any)
Conditions PrecedentWhat must happen before closing (financing, regulatory approval, customer consents)
Due Diligence PeriodTimeline for buyer's investigation, typically 60–90 days
Exclusivity PeriodSeller cannot shop the company to other buyers during this time
Representations & WarrantiesHigh-level overview; detailed version comes in SPA
Confidentiality & NDAProtection for sensitive business information
Expense AllocationWho pays advisor fees if deal terminates
Dispute ResolutionMediation, arbitration, or court jurisdiction

Each of these elements requires careful negotiation because they shape what the SPA will ultimately look like.

Part 2: Moving from LOI to Share Purchase Agreement (SPA)

The Transition Phase

Once both parties have signed the LOI, the real work begins. The buyer's advisors (typically lawyers and accountants) dive into due diligence while your legal team drafts or reviews the Share Purchase Agreement. This phase typically lasts 60–90 days and is where most deal negotiations actually happen.

The LOI essentially says, 'We agree on the headline number and broad terms.' The SPA says, 'Here's exactly what you're buying, the condition it's in, what we warrant to you, and how we'll remedy issues if they arise.'

Pro Tip: Use the LOI period to get your house in order. Organize financial records, customer contracts, employee documentation, and any licenses or permits. The more organized you are, the smoother due diligence will go, and the fewer 'surprises' will emerge that the buyer will demand you address in the SPA.

Overall Structure

A Share Purchase Agreement for a GmbH is typically 40–60 pages and includes the following major sections:

  • Definitions: Clear definitions of 'Seller,' 'Buyer,' 'Company,' 'Shares,' 'Purchase Price,' 'Closing Date,' and other key terms
  • Agreement to Sell/Buy: The straightforward statement that the seller will sell and the buyer will buy the shares
  • Purchase Price & Adjustment Mechanism: How the headline price is adjusted, including working capital and debt calculations
  • Representations & Warranties: Seller's detailed statements about the company's legal, financial, operational, and tax status
  • Indemnities: Seller's obligation to compensate buyer for breaches or undisclosed liabilities
  • Covenants & Undertakings: Ongoing obligations for both parties pre- and post-closing
  • Conditions Precedent: What must happen before closing is obligatory
  • Closing: How, when, and where the transaction is completed
  • Post-Closing Obligations: Seller's role after the handover (transition services, information requests, etc.)

Key Representations & Warranties for Sellers

As the seller, you'll make promises (representations and warranties) about the company's condition. These are your biggest financial exposure if something goes wrong. Common reps include:

Warranty CategoryWhat You're Promising
Organization & AuthorityThe GmbH is legally registered, in good standing, and you have full authority to sell it
CapitalizationThe share structure is accurate and there are no hidden options, agreements, or claims
Financial StatementsBalance sheets, P&Ls, and other documents are accurate, complete, and prepared in accordance with accounting standards
Tax ComplianceAll tax returns are filed, all taxes paid, no audits pending, no transfer pricing issues
ContractsAll material customer, supplier, and employee contracts are disclosed; no material contracts terminate on a change of control
Compliance & PermitsAll permits, licenses, certifications are in place and valid
Legal MattersNo litigation pending, no regulatory investigations, no material disputes
EnvironmentalNo environmental liabilities; compliance with environmental laws
Intellectual PropertyAll IP (trademarks, software, patents) belongs to the company and is properly registered
Employees & LaborNo undisclosed severance obligations, benefits liabilities, or labor disputes
Related Party TransactionsAll transactions with affiliated parties are disclosed and at arm's length prices

Each warranty comes with specific carve-outs and qualifications. For example, a financial statement warranty typically includes a materiality threshold: 'No representation is breached if the aggregate impact is less than €100,000.' This protects you from claims about trivial matters.

Warning: The warranties you provide are typically the basis for indemnification claims. If you warrant that there are no pending litigations and a lawsuit emerges three months after closing, the buyer can seek compensation from your indemnity escrow or insurance. Be precise and conservative in what you warrant—if you're unsure, qualify the warranty or build in a carve-out.

Indemnities: Your Financial Exposure

An indemnity is a contractual obligation to compensate the buyer if something goes wrong. In the SPA, your indemnity covers breaches of representations and warranties, as well as pre-closing liabilities that weren't disclosed. Typically, an indemnity has several components:

  • Basket: A minimum threshold of claims before indemnification kicks in (e.g., no claim unless aggregate damages exceed €50,000)
  • Cap: A maximum amount you can be required to pay (often a percentage of purchase price, e.g., 15–20%)
  • Time Limits: How long the buyer can make claims (typically 12–18 months for general reps, longer for tax and environmental)
  • Escrow: A portion of the purchase price held in escrow to secure your indemnity obligations
  • Set-Off Rights: The buyer's right to reduce future payments if claims arise

Limitation of Liability: Protecting Yourself

Limitation of Liability clauses define the maximum financial exposure you have under the SPA. This is critical for your downside protection. A typical limitation framework includes:

ComponentTypical Terms
Basket€50,000–€150,000 (claims must exceed this before indemnity is triggered)
Cap15–25% of purchase price for general reps (lower for tax and environmental)
De Minimis Threshold€5,000–€10,000 per individual claim (claims below this don't count toward basket)
Time Limits12–18 months for general reps; 3–5 years for tax; 5–7 years for environmental
Escrow Hold-Back5–10% of purchase price; released after time limits expire

These limitations are heavily negotiated. Buyers want high caps and long time periods; sellers want the opposite. The final numbers typically depend on deal size, buyer sophistication, and the industry's risk profile.

Warranty & Indemnity (W&I) Insurance

W&I insurance is a powerful tool for both parties. Rather than relying on the seller's indemnity (which can be hard to enforce if the seller runs out of money), the buyer purchases an insurance policy that pays for breaches of representations and warranties. This benefits sellers too: if you purchase seller-side W&I insurance, the buyer looks to the insurance company, not to you, for claims.

W&I insurance typically covers:

  • Breach of standard reps and warranties
  • Tax risks and undisclosed liabilities
  • Regulatory compliance breaches
  • Specific identified risks (e.g., customer concentration, supplier dependency)

The cost is typically 3–5% of the purchase price and is borne by either buyer or seller depending on negotiations. For larger deals (€5 million+), W&I insurance is standard practice.

Part 4: Working Capital Adjustment & MAC Clauses

Working Capital Adjustment

Your GmbH's working capital (current assets minus current liabilities) fluctuates based on business cycles. To ensure the buyer receives the company in the same financial condition as anticipated at signing, the SPA typically includes a working capital adjustment mechanism.

Here's how it works: At signing, the SPA specifies a 'Target Working Capital' (e.g., €500,000). At closing, you calculate actual working capital. If it's higher than target, the buyer owes you the difference. If it's lower, you refund the difference from the purchase price.

Example: Target working capital is €500,000. On closing day, actual working capital is €480,000. The buyer owes you €20,000 less. Conversely, if actual is €520,000, the buyer pays €20,000 more.

Working capital adjustments are typically subject to a threshold (e.g., €30,000) before any adjustment is made, and a cap (e.g., €100,000) on the adjustment amount.

Material Adverse Change (MAC) Clauses

A MAC clause protects the buyer by allowing them to walk away (or renegotiate price) if a material adverse change occurs between signing and closing. This is critical in volatile markets.

A typical MAC includes:

  • Definition of what constitutes a MAC (e.g., loss of major customer, significant revenue decline, key manager departure)
  • Thresholds (e.g., loss of more than 20% of revenue, or a single loss representing >30% of EBITDA)
  • Carve-outs: Certain events are excluded from MAC (general economic conditions, industry-wide changes, COVID-19-like events)

As a seller, you want a narrow, clearly defined MAC. Buyers want it broad and vague. Market practice is somewhere in between: usually a 20–30% EBITDA impact threshold with clear carve-outs.

Part 5: Covenants, Non-Compete & Closing Conditions

Seller Covenants

Covenants are promises you make about how the company will be operated before closing. Typical seller covenants include:

  • Conduct business in the ordinary course, consistent with past practice
  • Don't declare dividends, declare insolvency, or incur debt without buyer's consent
  • Preserve customer and supplier relationships
  • Not hire or fire key employees, or materially change compensation
  • Comply with all laws and regulations
  • Not change accounting methods or make any unusual transactions
  • Notify buyer of any litigation, regulatory issues, or material changes

These covenants are binding from signing to closing and ensure the buyer receives the company in the condition contemplated at signing.

Non-Compete Provisions

Almost every GmbH sale includes a non-compete clause restricting your ability to compete after closing. Typical terms:

ElementTypical Range
Duration2–5 years post-closing
Geographic ScopeGermany, EU, or worldwide (depends on the business)
Industry ScopeSame or similar business (narrowly defined)
Non-Solicitation of Customers2–3 years, often extends beyond non-compete
Non-Solicitation of Employees12–24 months post-closing
Liquidated Damages€50,000–€500,000 or percentage of purchase price

As the seller, you want a narrow, clearly defined scope. The buyer wants it broad to protect their investment. Again, market negotiations typically land in the middle.

Closing Conditions

The SPA includes conditions that must be satisfied before closing is mandatory. These typically include:

  • Accuracy of Reps & Warranties: All seller representations remain accurate as of closing
  • No Material Adverse Change: No MAC has occurred
  • Buyer Financing: Acquisition financing is obtained (if applicable)
  • Regulatory Approvals: Antitrust, tax, or industry-specific approvals are secured
  • Customer/Supplier Consents: Key contracts requiring change-of-control consents are obtained
  • Third-Party Consents: Landlords, lenders, or other third parties have approved the sale
  • Execution of Closing Documents: SPA and related agreements are fully executed

If conditions aren't satisfied, either party can typically terminate the deal (though remedies and repercussions depend on who's at fault).

In Germany, section 15 of the GmbH Act (GmbHG) requires that transfers of GmbH shares be notarized. This is a non-negotiable requirement and applies to all GmbH sales, regardless of size.

The notarization process typically includes:

  • Appointment of a notary (Notar) by both parties or upon buyer's request
  • Verification of identities and authority of both parties
  • Explanation of legal consequences to both parties
  • Execution of the share transfer document (Abtretung)
  • Payment of purchase price (typically held in notary escrow)
  • Registration with the commercial register (Handelsregister)

The notary's fee is typically 1–2% of the purchase price and is usually split between buyer and seller or borne by the buyer. Expect the notarization to add 2–4 weeks to the closing timeline.

Pro Tip: Select a notary experienced in M&A transactions. A notary familiar with GmbH sales and complex purchase agreements will spot issues early and facilitate a smoother closing.

Part 7: Closing Mechanics

The Closing Process

Closing is the day the deal becomes final. The process typically unfolds as follows:

  • Pre-Closing Checklist: Both parties confirm all closing conditions are satisfied
  • Final Representations Certificate: Seller provides a final certification that all reps remain accurate
  • Fund Transfer: Buyer's funds are deposited into notary escrow
  • Notarization: The notary conducts the formal signing and verification
  • Share Transfer: Shares are officially transferred from seller to buyer
  • Closing Deliverables: Seller provides share certificates, cap table, minutes, company seal, etc.
  • Fund Release: Notary releases funds to seller (after registration with commercial register)
  • Registration: Transfer is registered with the Handelsregister

The entire process typically takes 1–2 weeks from fund transfer to final registration.

Post-Closing Obligations

Even after closing, sellers often have ongoing obligations, including:

  • Transition Services: Providing operational support or training to the buyer's team (typically 30–90 days)
  • Information Requests: Responding to buyer requests for historical documents, customer data, etc.
  • Tax Cooperation: Assisting with tax audits or inquiries related to pre-closing periods
  • Indemnity Escrow: Funds held in escrow (typically 12–18 months) to cover indemnity claims
  • Non-Compete Compliance: Adhering to non-compete and non-solicitation obligations

Part 8: Practical Negotiation Tips

For Sellers

  • Get legal and tax advice early: Don't wait until the LOI is signed. Have your advisors review the LOI and preliminary SPA terms before you commit.
  • Understand your exposure: Calculate your estimated tax liability and indemnity exposure. Ensure the purchase price accounts for these costs.
  • Push for escrow and time limits: The longer the escrow period and the shorter the time to make claims, the better. Typical market: 12 months escrow with 18–24 month claim periods.
  • Obtain W&I insurance: If you can negotiate it, seller-side W&I insurance eliminates ongoing exposure to the buyer. It's worth the premium.
  • Narrow the reps and carve-outs: Push back on broad, open-ended warranties. Use materiality qualifiers, thresholds, and carve-outs liberally.
  • Lock in the purchase price: Limit working capital adjustments to reasonable thresholds (e.g., ±€30,000). Avoid open-ended adjustments.
  • Define MAC carefully: Ensure the MAC definition is narrow and includes clear carve-outs for general economic conditions and industry-wide changes.
  • Transition services: Offer limited post-closing transition services (30 days max). Longer commitments create friction and extend your exposure.

For Both Parties

  • Communicate openly: The more transparent both parties are during due diligence, the fewer surprises at closing and the fewer post-closing disputes.
  • Document everything: If you agree to a term verbally, confirm it in writing. Email confirmations after calls are your friend.
  • Plan for closings: Closing day can be chaotic. Have a detailed checklist, assign clear responsibilities, and build in buffer time.
  • Involve the right advisors: A good transaction lawyer and tax advisor will save you money and headaches in the long run. Their fees are a fraction of the deal value.

Conclusion: From LOI to Close

Selling a GmbH is a complex transaction that hinges on two key documents: the Letter of Intent and the Share Purchase Agreement. The LOI sets the tone and framework; the SPA locks in the details and defines your financial exposure.

Success depends on understanding what each document covers, negotiating key terms like warranties, indemnities, and liability caps, and ensuring all closing conditions are clearly defined. With the right preparation, advisors, and negotiation approach, you can navigate this process confidently and close a deal that meets your financial and personal goals.

For more guidance on GmbH sales, explore our related guides on GmbH verkaufen, Due Diligence, Earn-Out Structures, and Asset Deal vs Share Deal.

Disclaimer: Finance Stacks is not a financial advisory service. All content is for informational purposes only and does not replace professional advice from a tax advisor, accountant, or financial consultant.