How to File a Lawsuit: Step-by-Step Process and 2026 Costs

Filing a lawsuit begins the formal civil litigation process. The plaintiff drafts a civil complaint, pays the filing fee, files in the court that has jurisdiction and venue, and serves the defendant under Federal Rule of Civil Procedure 4 or its state-court equivalent. From that point forward, the case proceeds through pleadings, discovery, motion practice, trial, and possible appeal. The five-step framework below applies in federal court and in most state systems with minor procedural variations.

The Five Steps to File a Lawsuit

Step	Task	Typical Time
1. Pre-suit investigation	Document the claim, send a demand letter, verify pre-suit notice requirements	1-4 weeks
2. Choose court and jurisdiction	Federal vs. state, subject-matter jurisdiction, jurisdictional reach over a defendant, venue	Days
3. Draft and file the complaint	FRCP 8 short, plain statement; pay filing fee; file electronically	1-2 weeks for drafting
4. Serve the defendant	FRCP 4 personal service, waiver, or state-court method	2-30 days
5. Manage early case events	Initial scheduling order, Rule 26(f) conference, discovery plan	30-90 days

Step 1: Pre-Suit Investigation and Demand

Most successful lawsuits begin with a thorough pre-suit investigation. Collect contracts, correspondence, photographs, medical records, payroll records, or other evidence that supports each element of the claim. Send a demand letter when the dispute is potentially resolvable without litigation; many state and federal statutes require pre-suit notice as a condition of filing. Consumer protection statutes (California CLRA), warranty claims (Magnuson-Moss), and certain professional liability claims all impose pre-suit notice requirements. Filing without the required notice almost always results in dismissal without prejudice.

Government Defendants and Other Special Pre-Suit Hurdles

Claims against government defendants carry their own notice ladder with far shorter deadlines than the general statute of limitations. Suits against the United States for negligence require an administrative claim to the responsible agency under the Federal Tort Claims Act before any lawsuit may be filed, and most states impose similar tort claim notice requirements on suits against state and local governments, some with windows as short as six months from the injury. Medical malpractice claims add another layer in many states: a presuit screening process or an affidavit of merit from a qualified medical expert must accompany or shortly follow the complaint. Missing any of these prerequisites usually forfeits the claim even when the underlying case is strong, so map every notice requirement before the drafting stage begins.

Step 2: Federal vs. State Court

Federal courts have subject-matter jurisdiction over claims arising under federal law (28 U.S.C. § 1331) and over state-law claims with complete diversity of citizenship between the parties and an amount in controversy exceeding $75,000 (28 U.S.C. § 1332). State courts have general jurisdiction over almost all civil disputes. The choice between them affects discovery scope, jury composition, motion practice, and procedural rules. The plaintiff's lawyer should run a forum-selection analysis before drafting.

Step 3: Draft and File the Complaint

The complaint must satisfy Federal Rule of Civil Procedure 8(a): a short, plain statement of the grounds for jurisdiction, a short, plain statement of the claim showing entitlement to relief, and a demand for relief. Under Twombly and Iqbal, the complaint must allege facts that, if accepted as true, plausibly state a claim. Conclusory recitations of the elements are insufficient. The filing fee is $405 in federal district court (2026), and state filing fees range from approximately $50 in small-claims courts to $500+ in state superior courts. Indigent plaintiffs may apply to proceed in forma pauperis.

Step 4: Serve the Defendant

Federal Rule of Civil Procedure 4 governs service of process. The plaintiff has 90 days from filing to serve the defendant under Rule 4(m). Methods include personal delivery to the defendant, leaving copies at the defendant's dwelling with a person of suitable age, delivering to an agent authorized by appointment or law, or, for corporations, serving the registered agent. Waiver of service under Rule 4(d) is preferred when feasible: the plaintiff sends a request, the defendant returns a signed waiver, and the deadline to answer extends to 60 days. State methods vary widely; California allows service by mail with acknowledgment, and Texas allows publication in limited circumstances.

Step 5: Early Case Events

After service, the defendant has 21 days to answer under FRCP 12(a) (or 60 days if served by waiver). The court issues an initial scheduling order setting discovery, motion, and trial deadlines. The parties hold a Rule 26(f) conference to develop a discovery plan, exchange initial disclosures under Rule 26(a)(1), and prepare the case management statement. From this point the case is fully in litigation, and procedural deadlines run continuously until trial or settlement.

Filing Fees by Court (2026)

Court	Civil Filing Fee
Federal district court	$405
Federal court of appeals (notice of appeal)	$605
U.S. Supreme Court (petition for certiorari)	$300
California superior court (unlimited civil)	$435
New York Supreme Court	$210
Texas district court	$300-$400
Small claims (most states)	$30-$75

Statute of Limitations

Every claim has a statute of limitations: the deadline by which the lawsuit must be filed. Personal injury is typically two or three years from the date of injury. Written contracts are typically four to six years from breach. Fraud is often three years from discovery. Each state has its own statute, and federal claims are governed by federal limitations. Filing one day after the deadline almost always results in dismissal with prejudice. Verify the statute of limitations before drafting and double-check discovery rules and tolling provisions.

Frequently Asked Questions

How much money does it cost to file a lawsuit?

The federal civil filing fee is $405 (2026). State filing fees range from approximately $30 in small claims to $500 in state superior courts. Service of process by a private process server typically adds $50-$200, and a sheriff's deputy serves for a smaller fee. Beyond filing and service, the major costs of a lawsuit are attorney's fees, expert witness fees, and discovery costs (deposition transcripts, document production), which can range from a few thousand dollars in small cases to hundreds of thousands in complex commercial litigation.

What are the 5 steps to initiate a lawsuit?

(1) Pre-suit investigation and demand letter; (2) Choose the court (federal or state) and verify jurisdiction and venue; (3) Draft and file the complaint with the filing fee; (4) Serve the defendant under FRCP 4 or state-court rules; (5) Manage early case events including the answer deadline, the scheduling order, and the Rule 26(f) discovery conference. Each step has its own rules and deadlines.

Is it worth suing someone?

The economic test compares the expected recovery (damages multiplied by probability of winning) against the cost of pursuing the claim (attorney's fees, expert fees, opportunity cost) and the defendant's collectibility. A judgment against an uncollectible defendant has no economic value. Statutes that shift attorney's fees to the prevailing party (consumer protection, civil rights, employment discrimination) often change the analysis sharply, and contingency-fee arrangements remove the upfront cost barrier in personal injury and class-action cases.

Can you file a lawsuit on your own?

Yes. Individuals can file as pro se litigants in any civil case. Corporations, LLCs, and partnerships must appear through counsel. Pro se litigants face the same procedural rules as represented parties; missing a deadline or failing to comply with FRCP 4 service requirements forfeits the case the same way it would for a represented party. Federal court self-help packets are available on every district court website.

How long does a lawsuit take from filing to trial?

Most civil cases take one to three years from filing to trial, and complex commercial or multi-party cases can run longer. The early months are consumed by service, the answer or motion to dismiss, and the scheduling order; discovery typically occupies six months to a year; and trial dates depend on the court's docket. The large majority of civil cases settle before trial, often at mediation or after summary judgment briefing, so the realistic planning horizon is the settlement window rather than a verdict date. Timelines vary by court and by state.

Should I file in small claims court instead?

Small claims court makes sense when the amount at stake falls under the state's limit, typically $5,000 to $20,000 depending on the state, and the dispute is factually simple. Filing fees are low, hearings arrive within weeks or months, and formal discovery is minimal. The tradeoffs are capped recoveries, limited appeal rights, and, in some states, restrictions on attorney representation. The small claims court process is usually the fastest path to a collectible judgment for modest disputes.

When to Hire a Lawyer to File Your Lawsuit

Most plaintiffs benefit from at least an attorney-drafted complaint to ensure that every element is pleaded, that jurisdiction is correct, and that the statute of limitations is preserved. Our litigation team drafts attorney-drafted complaints and full filing packages for federal and state-court litigation nationwide.