Unpaid invoices are not just an accounting nuisance — they are an interest-free loan you never agreed to make. California law gives creditors a graduated set of tools, from structured follow-up to judgment liens, and the businesses that collect reliably are the ones that escalate on a schedule instead of hoping. Here is a playbook for turning receivables back into cash.
Step 1: Tighten the paper before you need it
Collection outcomes are mostly determined before the invoice goes unpaid. Three contract terms do the heavy lifting:
- An attorney's fees clause. Without one, each side generally bears its own fees; with one, Civil Code § 1717 lets the prevailing party in an action on the contract recover reasonable fees — which transforms the economics of suing over mid-size invoices.
- A stated interest rate on late balances. If the contract is silent, prejudgment interest on a contract breach accrues at 10% per year under Civil Code § 3289(b); an enforceable stated rate clarifies the amount due.
- A personal guaranty from the owner when extending terms to a thin LLC or new corporation. It is far easier to get at signing than after default.
These are quick wins to build into your standard business contracts now, before the next slow payer.
Step 2: Escalate internally — on a calendar, not a mood
A disciplined internal sequence outperforms sporadic nagging: a reminder at day 5 past due, a phone call at day 15, and a firm final notice at day 30 stating that the account will be referred out. Two practices matter more than the wording. First, get the debtor to acknowledge the balance in writing — an email saying "we know, we'll pay next month" helps rebut later disputes, and, under CCP § 360, a qualifying signed written acknowledgment can even restart the limitations period. Second, if the customer raises a genuine dispute about the work or goods, deal with it head-on; a discounted, documented settlement of a disputed invoice usually beats litigating it.
Step 3: The attorney demand letter
When internal efforts stall, a demand letter on law firm letterhead changes the conversation. It signals that the cost of nonpayment is about to include a lawsuit, states the legal basis for the debt, adds accrued interest, and invokes the fee clause if there is one. A meaningful share of commercial receivables resolve at this stage — often within a few weeks — because the debtor's calculation shifts from "how long can I stall?" to "what will defense cost?" For businesses collecting from consumers, the letter must also comply with the Rosenthal Fair Debt Collection Practices Act (Civil Code § 1788 et seq.), which governs collection conduct in California; commercial debts between businesses fall outside those consumer statutes.
Step 4: Choose the right forum and file
Match the forum to the size of the receivable: small claims for individuals up to $12,500 (entities capped at $6,250), limited civil for claims to $35,000, unlimited civil above that. A well-documented invoice case pleads several complementary theories — breach of written contract (four-year statute, CCP § 337), open book account (CCP § 337a), and account stated — which together cover most gaps in the paperwork. Two accelerators deserve mention:
- Writ of attachment. In commercial cases on an unsecured contract claim of a fixed or readily ascertainable amount of at least $500, excluding costs, attorney fees, and interest (CCP § 483.010), a creditor can ask the court — early in the case — to attach eligible assets pending judgment. Attachment can provide powerful settlement leverage because it restricts the debtor's ability to spend or move the attached property.
- Default judgment. Many collection suits end without a fight: if the debtor does not respond within 30 days after service, the creditor can seek entry of default and, upon the required proof, a default judgment.
Step 5: Turn the judgment into money
A judgment is a tool, not a payment. Most California commercial money judgments accrue 10% annual interest (CCP § 685.010), remain enforceable for ten years, and may be renewed before expiration. Enforcement options include:
- Bank levy — a writ of execution served on the debtor's bank seizes funds on deposit.
- Wage garnishment — an earnings withholding order against an individual debtor's paycheck.
- Judgment lien — recording an abstract of judgment liens the debtor's real property in that county; filing a notice of judgment lien with the Secretary of State reaches specified categories of personal property.
- Debtor examination — a court-ordered appearance where the debtor must answer, under oath, questions about assets and accounts.
- Till taps and keeper levies — for cash businesses, the sheriff can collect receipts directly.
Pre-suit asset research can be valuable here: knowing where the debtor banks before filing may allow a levy to reach funds before they move. Our debt collection practice builds enforcement planning into the case from day one rather than treating it as an afterthought.
Talk to a California business attorney
If aging invoices are piling up, a short consultation can identify which accounts justify a demand letter, which belong in court, and which need a different approach entirely. 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. Facts matter; consult a lawyer about your specific situation.
