Deal
Transaction

Closing conditions in a company acquisition: conditions to completion between signing and closing

Conditions to completion in a company acquisition: signing and closing, merger clearance, third-party consent, MAC clause, long-stop date and closing mechanics.

BRANDAUER Rechtsanwälte
Your law firm

BRANDAUER Rechtsanwälte

Salzburg law firm for corporate, company and transaction law

Every transaction is handled by a coordinated team of lawyers, legal staff and specialists. In company acquisition matters we look at structure, contract, tax and liability together.

18 June 2026 · Mag. Bernhard Brandauer, Rechtsanwalt

In larger company transactions the purchase contract is not always completed on the same day on which it is signed. Between signing and the actual completion, the closing, there is often a phase in which certain conditions must be satisfied. These conditions to completion decide whether and when the deal really comes about.

This post explains why signing and closing fall apart, which conditions precedent are typical and how completion proceeds. The focus is on merger clearance, regulatory and corporate consents, the consent of third parties on a change of control as well as the MAC clause and the long-stop date.

Anyone who knows this mechanism steers the phase between signing and completion deliberately. From a lawyer perspective, the clean drafting of the conditions to completion decides whether all steps interlock smoothly on the closing day or whether completion is disputed.

Classify your completion

Is the path from signing to completion secured?

Answer one or two questions on the separation of signing and closing. You receive an initial classification of the most important conditions to completion.

Already know you want to get in touch? Go straight to the enquiry form.

01 Question 1

In your transaction, do signing and completion fall on different dates?

If the acquisition requires regulatory clearances or the consent of third parties, there is usually a phase between signing and closing that is governed by conditions to completion.

All paths at a glance

Overview of all answers.

01

In a simultaneous closing, signing and completion arise in a single step.

If signing and completion coincide, the phase of conditions precedent falls away. Nevertheless you should check whether a merger filing or the consent of third parties is required after all, because a premature completion without the required clearance can endanger the deal. A clear completion list is advisable even for a simultaneous closing.

Have it clarified before signing that no clearance is in fact outstanding. A simultaneous closing is only permissible if no regulatory condition applies.

02

The path to closing is structured, now the clean completion mechanics matter.

If the conditions to completion are clearly drafted, the transaction is well set up. Check in addition who is responsible for satisfying each condition, how its fulfilment is evidenced and which duties to cooperate apply. A closing memorandum should map all completion actions in the correct order.

A short legal review of the completion mechanics prevents individual steps from being missing or disputed on the closing day.

03

The conditions to completion are unclear, sharpening them is advisable.

Unclear conditions to completion lead on the closing day to disputes over whether completion can be demanded. Such points can be sharpened before signing: a precise list of the conditions precedent, an unambiguous long-stop date with a right of withdrawal and a rule on the bring-down of the warranties at closing.

Have the conditions to completion reviewed before you sign. A MAC clause and a long-stop date only work if their requirements are clearly worded.

Why signing and closing fall apart

With the signing of the purchase contract the transaction is legally agreed but not yet completed. In many cases completion may only take place once certain requirements are met. Thus a merger clearance often has to be obtained before completion, because the acquisition would otherwise be unlawful. A suspended phase arises between signing and closing as a result.

This phase is governed by conditions precedent. Only once all conditions have arisen or have been effectively waived can completion be demanded. Until then both parties are bound, but ownership does not yet pass. How the contract is built up to this point is shown in the post on the SPA warranty catalogue.

If completion coincides with signing, this is called a simultaneous closing. That is only possible if no regulatory clearance and no consent of third parties is outstanding. In practice the separation of signing and closing is the rule in company acquisitions above a certain size. Our focus page on contract drafting and warranties offers more depth.

Typical conditions precedent to completion

At the top usually stands the merger clearance. If the transaction reaches the thresholds, it must be notified to the Austrian Federal Competition Authority; in larger cases EU merger control can also apply. Completion before clearance is prohibited and can lead to serious consequences. In addition, sector-specific regulatory consents may be required.

Corporate consents are also frequently necessary, such as a resolution of the shareholders meeting or the consent of a supervisory board. Another typical condition is the consent of third parties on a change of control: contracts with banks, suppliers or landlords often contain a change-of-control clause that triggers a consent requirement or a right of termination on a change of owner.

Finally, a MAC clause and a financing confirmation are often found. The MAC clause, material adverse change, allows the buyer to withdraw if the situation of the target company deteriorates materially between signing and closing. The financing confirmation makes completion dependent on the purchase price financing being secured. The concept of the MAC clause we explain in the glossary.

Waiver, long-stop date and bring-down

Not every condition serves both parties. Conditions that protect only one side can often be waived unilaterally by that side, thereby enabling completion. Regulatory conditions such as merger clearance, by contrast, are mandatory and cannot be excluded. The contract should clearly govern which condition is waivable and who may declare the waiver.

So that the suspended phase does not last indefinitely, a long-stop date is agreed. If not all conditions arise by this cut-off date, the entitled party has a right of withdrawal. In this way the parties avoid a transaction remaining bound for months although a clearance cannot be obtained. The long-stop date should be set with a sense of proportion so that realistic clearance procedures still fit within it.

For completion a bring-down of the warranties is frequently agreed. The seller confirms that the warranties given in the purchase contract still hold true at closing. A material breach can then trigger a right of withdrawal or claims. How warranties work legally is explained in the post on share deal and asset deal.

The most important conditions to completion

What matters between signing and closing

These conditions decide on the completion of your transaction. Check each one before you sign.

Conditions to completion between signing and closing with recommended drafting and possible risk
Condition Recommended Possible risk
Merger clearance Prepare the filing in good time Authority clearance before completion Completion before clearance with serious consequences
Third-party consent Check change of control early Consent of important contract partners secured Termination of material contracts on completion
MAC clause Clearly defined threshold Withdrawal only on material deterioration Unclear clause without practical value
Long-stop date Set with a sense of proportion Right of withdrawal if conditions do not arise Too tight or missing deadline
Bring-down Warranties confirmed at closing Clear legal consequence on a material breach No update of the warranties at completion

The merger clearance is mandatory and cannot be waived. A completion before clearance can expose the transaction and those involved to considerable sanctions.

Caution with completion before clearance: Whoever completes the deal before the merger clearance is in place, or governs the conditions to completion unclearly, risks the invalidity of completion, sanctions and dispute on the closing day. Have the conditions to completion and the closing mechanics reviewed before signing. Booking an initial consultation (72 euro) can quickly bring clarity.

Closing mechanics and the closing memorandum

Once all conditions are satisfied, the closing follows. It consists of a series of completion actions that must be performed in the correct order: payment of the purchase price, transfer of the shares or assets, handover of documents and appointment of new bodies. These steps are usually recorded in a completion list so that nothing is forgotten on the closing day.

The conclusion is the closing memorandum. In it the parties confirm that all conditions have arisen and all completion actions have been performed. The memorandum documents the time of completion and creates clarity about the passing of benefits and burdens. It is at the same time evidence that the transaction has been properly concluded.

In practice it is worth running through the closing process in advance. A prepared completion prevents individual documents from being missing or payment routes from being unclear on the final day. An initial assessment of the risks of your transaction is provided by our M&A transaction risk profile.

Frequent questions

Closing conditions and conditions to completion.

What is the difference between signing and closing? +

Signing is the execution of the purchase contract, closing the actual completion with payment and transfer. Between the two there is often a phase in which conditions precedent such as merger clearance or the consent of third parties must be satisfied. Only once these conditions have arisen can completion be demanded.

What does a MAC clause mean? +

A MAC clause, material adverse change, allows the buyer to withdraw if the situation of the target company deteriorates materially between signing and closing. For the clause to work, the threshold must be clearly defined. A vaguely worded MAC clause has only limited value in practice because its requirements remain disputed.

What is the purpose of the long-stop date? +

The long-stop date is a cut-off date by which all conditions to completion must have arisen. If they do not arise in time, the entitled party has a right of withdrawal. In this way the parties prevent a transaction remaining bound for months although a clearance cannot be obtained. The date should take account of realistic procedure durations.

Topics
ClosingConditions to completionMerger clearanceMAC clauseLong-stop date

Structuring a deal, reviewing a contract, securing the risks?

When buying a company, structure, review and contract decide. Call us directly or send an email, callback within one business day.

Contact

A direct line to the firm.

Address

BRANDAUER Rechtsanwälte GmbH Giselakai 51 5020 Salzburg