How to File a Complaint for Accounting in California

To file a complaint for accounting in California, you prepare a civil complaint alleging that the defendant held a relationship with you that created a duty to account for money or property, and that the balance owed can only be determined through a formal court-ordered accounting. You file it in the Superior Court for the proper county, pay the filing fee, serve the defendant with the summons and complaint, and ask the court to order the accounting and enter judgment for whatever amount it reveals.¹

This is an equitable remedy, so a judge decides it rather than a jury. It exists for a narrow situation: you know you are owed something, but you cannot pin down the number because the other side controls the records.

Confirm You Actually Qualify

Before drafting anything, test your case against the two elements California courts require. First, a relationship between you and the defendant that creates a duty to account. Second, a balance owed to you that can only be figured out through a formal accounting.²

If you already know the exact amount, or can calculate it with basic math from records you have, the court will deny the accounting and tell you to sue for breach of contract or for money owed instead.¹ You do not need to prove the exact shortfall before filing, but you do need to show a balance exists in your favor and that the financial picture is too complicated or too hidden for you to reconstruct.

The qualifying relationship is often fiduciary, but it does not have to be. Any arrangement that creates an obligation to account for funds will support the claim as long as the balance is genuinely uncertain.² Common examples include business partners and joint venturers fighting over shared profits after a dissolution, beneficiaries demanding figures from a trustee or estate executor, shareholders who have been shut out of corporate books, principals suing agents who handled their money, and disputes over security deposits or commissions where one party holds funds belonging to another.

What the Complaint Must Allege

Your complaint has to lay out specific facts for each element. At a minimum, plead:

The qualifying relationship, identified by name (partnership, trust, agency, employment, or whatever it was) and described factually enough that the court can see the duty to account.
That the defendant received, managed, or held money or property belonging to you or held on your behalf.
That the balance owed cannot be determined without a judicial accounting because the records are too complex or sit exclusively with the defendant.²

Most practitioners also allege that they demanded an accounting before suing and that the defendant refused. The California Supreme Court’s formulation in Sass v. Cohen focuses on the relationship and the uncertain balance as the core elements, but pleading a pre-suit demand strengthens your case and the demand letter itself becomes useful evidence if the defendant later claims they would have cooperated.¹

You carry the burden of proving these elements, generally by a preponderance of the evidence.

Where to File and What It Costs

File in the California Superior Court for the county where the defendant lives or does business, or where the obligation that created the duty to account arose or was breached.³

Because the amount in dispute cannot be determined at the outset (that is the whole point of the lawsuit), accounting complaints are generally filed as unlimited civil cases, which cover disputes exceeding $35,000. The initial filing fee for an unlimited civil case is $435 as of 2026.⁴ You submit the complaint and a summons to the court clerk, who issues the summons back to you for service.

Serving the Defendant

Once the clerk issues the summons, you have to formally deliver copies of the summons and complaint to the defendant. A private process server typically charges between $40 and $200 depending on the circumstances.

Personal service is the cleanest option. Someone other than you hands the papers directly to the defendant, and service is complete the moment the papers are delivered.⁵

If personal delivery fails after reasonable attempts, substituted service lets you leave copies with a responsible adult at the defendant’s home or workplace and then mail another copy by first-class mail. Service is considered complete ten days after the mailing.⁵

Service by mail depends on the defendant’s cooperation. You mail the summons and complaint with a notice and acknowledgment of receipt form, and service is complete only on the date the defendant signs and returns the acknowledgment. If the defendant ignores the form for more than 20 days, the court can order them to pay the reasonable costs of serving them another way.⁶

Whichever method you use, file a proof of service with the court documenting when, where, and how the defendant was served.⁷

What Happens After You File

Accounting cases rarely end at the complaint stage. If the court agrees an accounting is warranted, the real work begins: sorting through the financial records to produce an actual number. In complex cases, judges often appoint a referee rather than wade through the ledgers themselves. California law allows this when the case involves a long account on either side, or when an accounting is needed before judgment can be entered.⁸

The referee examines the records, prepares a report, and presents findings to the court. The referee cannot make rulings on questions of law. Either party can ask the judge to confirm, modify, or reject the report. The appointment order must include the referee’s maximum hourly rate, and at any party’s request, a cap on total billable hours.⁸

Once the accounting is complete and the court determines what is owed, the judge enters a money judgment for that amount. If the accounting reveals that the defendant misappropriated funds or breached fiduciary duties, you may pursue additional remedies such as damages or disgorgement of profits in the same proceeding.

Deadline to File

California has no statute of limitations written specifically for accounting actions. The claim falls under the catch-all four-year period in Code of Civil Procedure section 343, running from the date the cause of action accrues.⁹

Pinning down the start date is often the hard part. In many accounting cases, you did not know the records were wrong because the defendant controlled them. California applies a delayed discovery rule in that situation: the clock does not begin until you knew, or reasonably should have known, the facts giving rise to the claim. This matters most in fiduciary relationships, where the defendant has superior knowledge and you have reason to trust them.

The discovery rule is not a license to wait. The clock starts once you have enough information to suspect something is wrong, even if you do not yet know how bad it is. A plaintiff who spotted suspicious transactions years ago and did nothing will have a hard time arguing the limitations period never started.

Defenses to Expect

Because an accounting is equitable, the defendant can raise equitable defenses that would not apply to a straight breach of contract case.

Adequate remedy at law. If the defendant shows you actually know the amount owed, or could calculate it from available records, the court will deny the accounting. This defense attacks whether the remedy is appropriate at all.¹
Laches. Even inside the four-year window, a defendant can argue you waited unreasonably long and the delay caused prejudice through faded memories, lost documents, or missing witnesses.
Unclean hands. A plaintiff who engaged in misconduct tied to the same financial transactions can be barred from equitable relief. The wrongdoing must relate directly to the subject of the lawsuit; unrelated bad behavior does not count.
No relationship requiring an accounting. The defendant may argue that no duty to account ever arose. An arm’s-length commercial transaction between strangers does not automatically entitle either side to a judicial accounting.
Account already settled. If the defendant provided financial statements and you failed to object within a reasonable time, they may argue the accounts are closed.

1
Supreme Court of California. Sass v. Cohen
2
Justia Law. Teselle v. McLoughlin
3
California Courts | Self Help Guide. Jurisdiction and Venue: Where to File a Case
4
Superior Court of California. Statewide Civil Fee Schedule
5
California Legislative Information. California Code of Civil Procedure 415.10 – 415.20
6
California Legislative Information. California Code of Civil Procedure 415.30
7
California Legislative Information. California Code of Civil Procedure 417.10
8
California Legislative Information. California Code of Civil Procedure 639
9
California Legislative Information. California Code of Civil Procedure 343