Business Litigation · June 12, 2026

Preliminary Injunctions: Emergency Orders in Business Disputes

Sometimes a lawsuit cannot wait for trial. A departing executive is walking out with your customer list, a partner is draining the company account, a counterparty is about to sell the asset your contract promised you. California courts can freeze the situation with a temporary restraining order and a preliminary injunction — but the standards are demanding, the timeline is brutal, and the moving party has to put up money to get one. Here is how emergency injunctive relief actually works.

The two-step sequence: TRO, then preliminary injunction

Emergency relief under Code of Civil Procedure § 527 usually comes in two stages. First, a temporary restraining order (TRO) can issue on extremely short notice — sometimes the same day — to preserve the status quo when the moving party shows that "great or irreparable injury" would result before the matter can be heard. Ex parte TROs require an affidavit showing the harm and, in most cases, advance notice to the other side under the ex parte rules; a TRO granted without notice is reserved for genuine emergencies where giving notice is impracticable or would cause the harm.

A TRO is short-lived. When the court grants one, it sets an order to show cause hearing on a preliminary injunction — generally within 15 days, or up to 22 days on a showing of good cause. The preliminary injunction, if granted, then holds the situation in place for the rest of the case. Neither order decides the merits; both exist to make sure there is still something worth fighting over when trial arrives.

The test: likelihood of success and the balance of harms

California courts weigh two interrelated factors: (1) the likelihood the moving party will prevail on the merits at trial, and (2) the interim harm the moving party will suffer without the injunction, compared against the harm the opposing party will suffer if it issues. The factors operate on a sliding scale — a very strong merits showing can offset a closer balance of harms, and vice versa — but a party with no possibility of success gets nothing regardless of harm.

The harm side turns on irreparability. If money damages at the end of the case would make you whole, courts expect you to wait for them. Classic irreparable harms in business cases include loss of trade secrets, destruction of a going business, loss of unique property, and interference with customer relationships that cannot be reconstructed. Civil Code § 3423 and Code of Civil Procedure § 526 also list what courts may not enjoin — including, with narrow exceptions, breach of a contract that cannot be specifically enforced. Personal services contracts are a well-known example.

The bond: emergency relief is not free

Under Code of Civil Procedure § 529, a preliminary injunction does not take effect until the moving party posts an undertaking — a bond covering the damages the restrained party will suffer if the court finally decides the injunction should not have issued. The court sets the amount, and in commercial cases it can be substantial: lost profits from a halted product launch or a frozen transaction add up quickly. If you lose the case, the enjoined party can recover its provable damages, including attorney fees incurred to dissolve the injunction, up to the bond amount. The bond requirement is a deliberate brake on tactical injunctions, and any serious motion budget has to account for it.

How these motions are fought in practice

Preliminary injunction practice compresses months of litigation into days. Some hard-earned rules:

  • Move fast — delay is evidence. A party that waits weeks after learning of the threat undercuts its own claim of irreparable harm.
  • Evidence, not adjectives. These motions are decided on declarations and documents. Specific, firsthand facts about what will be lost and when beat dramatic characterizations every time.
  • Propose a precise order. Injunctions must be specific enough to enforce by contempt. Vague requests ("stop interfering with our business") invite denial; targeted ones ("do not use or disclose the customer database copied on June 3") are more likely to be granted.
  • Defendants: attack the fit. Opposition themes that work include adequacy of damages, plaintiff's delay, overbreadth, the statutory limits in § 526, and a bond figure high enough to make the plaintiff reconsider.
  • Plan for the aftermath. The ruling often resets settlement leverage for the entire case, so prepare for serious negotiation within weeks of the hearing.

Whether you need to stop the bleeding or you have just been served with an ex parte application, the first 72 hours usually decide the motion — which is why emergency injunction work is a core part of our business litigation practice.

Talk to a California business attorney

If your business is facing harm that cannot wait for trial — or has just been hit with a TRO — timing and evidence matter more than anything else right now. Schedule a free consultation or call (949) 418-2113.

This article is attorney advertising and provides general information only. It is not legal advice and does not create an attorney–client relationship. The law changes, and this article reflects the law as of its publication date. Every situation is different — contact us to discuss how the law applies to your exact circumstances. See our full disclaimer.

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