The information below explains general legal concepts for educational purposes. It is not legal, financial, or tax advice, and it does not create an attorney-client relationship. Laws and procedures vary by jurisdiction and may change. The author and publisher disclaim liability for actions taken based on this content.
Key Facts
- Federal level: Federal courts can award a prevailing party a reasonable attorney’s fee as part of costs under 42 U.S.C. § 1988(b).
- Federal level: Blum v. Stenson ties “reasonable fees” under § 1988 to prevailing market rates in the relevant community, not the cost of providing legal services.
- Federal level: Hensley v. Eckerhart treats the extent of a plaintiff’s success as a crucial factor and calls for excluding hours tied to distinct unsuccessful claims unrelated to the successful claims.
- Federal level: Perdue v. Kenny A. describes a strong presumption that the lodestar is sufficient and restricts enhancements to rare and exceptional circumstances supported by specific evidence.
- State level: DC Bar Rule 1.5 says a lawyer’s fee shall be reasonable and lists multiple factors, including time and labor, novelty and difficulty, local customary fees, and results obtained.
- National overview: Contingent fee agreements are governed by state ethics rules, while federal reasonableness principles in § 1988 govern court-awarded fees and should not be conflated with private contingency-fee arrangements.
- State level: Washington RPC 1.5 requires contingent fee agreements to clearly notify the client of any expenses the client may be liable for, whether or not the client is the prevailing party.
- State level: Oregon Rule 1.5 prohibits illegal or “clearly excessive” fees and “clearly excessive” amounts for expenses.
Last reviewed: May 2026. Legal rules, forms, deadlines, and procedures can change by jurisdiction, agency, and court system.
Contingent fees create confusion because the phrase “contingency” shows up in two different settings: private contingent-fee contracts governed primarily by state ethics rules, and federal “contingency adjustments” discussed in Supreme Court cases about court-awarded fees under 42 U.S.C. § 1988.
Federal fee shifting under § 1988 works in a distinct way: § 1988(b) authorizes a court, in its discretion, to allow the prevailing party a “reasonable attorney’s fee as part of the costs” in covered civil-rights actions. In Blum v. Stenson, the Supreme Court explained that “reasonable fees” under § 1988 are calculated using prevailing market rates in the relevant community, rather than the cost of providing legal services.
State ethics rules, by contrast, regulate contingent-fee agreements as attorney-client contract terms and fee disclosures. For example, DC Bar Rule 1.5 provides that a lawyer’s fee “shall be reasonable” and directs how reasonableness is evaluated by listing factors such as time and labor required, novelty and difficulty, local customary fees, the amount involved and results obtained, and whether the fee is fixed or contingent. Washington’s RPC 1.5 likewise prohibits an unreasonable fee or an unreasonable amount for expenses and lists fee reasonableness factors.
Some state rule language frames excessiveness more sharply. Oregon Rule 1.5 prohibits an illegal or “clearly excessive” fee and also prohibits collecting a “clearly excessive” amount for expenses, which ties the excessiveness concept to both the lawyer’s fee and expense charges.
Contingent fee agreements often face specific writing and disclosure requirements under state ethics rules, and the sources here illustrate recurring themes. DC Bar Rule 1.5(c) requires a contingent fee agreement to be in a writing signed by the client, to state the method for determining the fee including percentage terms, and to address litigation and other expenses to be deducted from the recovery and whether those expenses are deducted before or after the contingent fee is calculated. Washington RPC 1.5(c)(2) adds a client-information requirement by stating that the agreement must clearly notify the client of any expenses for which the client will be liable whether or not the client is the prevailing party.
The ABA Model Rule 1.5 supports the same baseline contract-information structure that many states build on. Model Rule 1.5(c) requires a contingent fee agreement to be in a writing signed by the client, to state the fee determination method (including a percentage-based approach), to address litigation and other expenses deducted from the recovery and whether those expenses are deducted before or after the contingent fee is calculated, and to clearly notify the client of expenses for which the client may be liable even if the client is not the prevailing party.
When readers see the phrase “necessary or excessive,” a safe way to connect the concepts to the sources is to treat federal “necessary” as tied to court-approved reasonableness standards, while state “excessive” tracks ethics rules that prohibit unreasonable or “clearly excessive” fee and expense arrangements. Blum specifically warns against confusing § 1988 “contingency adjustments” with contingency-fee arrangements common in private tort representation, which reinforces the idea that federal fee-award reasoning does not automatically rewrite the private economics of a contingent-fee contract.
Federal courts also apply structured constraints to what counts as a reasonable fee in fee-shifting cases. In Hensley v. Eckerhart, the Court described the extent of a plaintiff’s success as a crucial factor and stated that hours spent on distinct unsuccessful claims should be excluded when those unsuccessful claims are unrelated to the successful claims. In Perdue v. Kenny A., the Court reinforced that the lodestar is presumptively sufficient and limited fee enhancements to rare and exceptional circumstances, requiring specific evidence and placing a burden on the fee applicant.
Contingent fee contract vs court awarded fee under § 1988(b)
| Topic | Private contingent-fee contract (state ethics rules) | Court-awarded fee under § 1988(b) (federal fee shifting) |
|---|---|---|
| What the source governs | The agreement’s fee method, expense treatment, and client notice | The court’s discretionary award of “reasonable attorney’s fees” as costs in covered civil-rights cases |
| Reasonableness framing | State rules address whether fees and expenses are reasonable or “clearly excessive,” and set reasonableness factors | Supreme Court decisions under § 1988 define reasonableness by prevailing market rates and structured limitations |
| Common disclosure requirement | Writing signed by the client, fee method/percentages, expense allocation, and (in example rules) notice of client expense liability even if not the prevailing party | Court analysis focuses on success extent and excludes hours for unrelated unsuccessful claims |
| Key warning about “contingency” | State rules regulate private contract terms | Blum warns not to confuse federal “contingency adjustments” with private contingency-fee arrangements |
A broader takeaway follows directly from these sources: the “necessary or excessive” label can look similar, but the controlling authority, the regulated document, and the decisionmaker differ between private contract ethics rules and federal fee-award jurisprudence.
Professional responsibility discussions can also help readers see how ethics rules operate around lawyer compensation issues, and one example is this TheFirstFile article on an ABA ethics committee opinion about lawyer responsibilities when outsourcing legal work.
