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Contingency Fee Agreements

United States (federal and general)Last reviewed 2 August 2026

A contingency fee agreement is the written contract between you and your attorney that defines how fees and costs will be handled. It must specify the percentage, the calculation method (gross or net), cost responsibility, and your right to terminate. Most states require it in writing.

What Are the Required Elements of a Contingency Agreement?

Direct Answer: A contingency fee agreement is the written contract between client and attorney specifying the percentage fee, how costs are deducted, the client's liability if the case is lost, and termination rights. Under ABA Model Rule 1.5(c) it must be signed by the client before representation begins.

ABA Model Rule 1.5(c) requires that a contingency fee agreement be in a writing signed by the client. The agreement must state:

  • The method by which the fee is to be determined, including the percentage(s)
  • The litigation and other expenses to be deducted from the recovery
  • Whether such expenses are deducted before or after the contingency fee is calculated
  • The scope of representation covered by the agreement

Gross vs Net Calculation

This is the single most important financial distinction in your retainer agreement. The difference can amount to thousands of dollars:

MethodSettlement: $100,000 | Costs: $10,000Client Receives
Gross (33⅓%)Fee: $33,333 + Costs: $10,000 = $43,333$56,667
Net (33⅓%)Fee: $30,000 + Costs: $10,000 = $40,000$60,000

Always ask your attorney whether the fee is calculated on the gross (total settlement) or net (settlement minus costs). If the agreement is ambiguous on this point, ask for clarification in writing before signing.

Sliding Scale Structures

Many attorneys use a tiered fee structure that increases as the case progresses through more resource-intensive stages:

  • 25% — if settled during the pre-litigation demand phase
  • 33⅓% — if settled after a lawsuit is filed but before trial
  • 40% — if the case goes to trial
  • 45% — if an appeal is necessary

Cost Responsibility

The agreement should clearly address two scenarios:

If the case wins

Advanced costs are reimbursed from the settlement. Whether they are deducted before or after the fee calculation depends on the gross/net method specified in the agreement.

If the case loses

Some agreements state the attorney absorbs all costs ("true no win no fee"). Others require the client to reimburse advanced costs regardless of outcome. This is a critical point — clarify it before signing.

Red Flags to Watch For

  • No written agreement — this violates Model Rule 1.5(c) in most states
  • Ambiguous gross/net language — insist on explicit clarification
  • Fee percentage above 40% without clear justification
  • No mention of cost responsibility on a loss
  • No termination clause or penalty for switching attorneys
  • Vague scope of representation (e.g., does the agreement cover appeals?)

Frequently Asked Questions

What should a contingency fee agreement contain?

A contingency fee agreement must state: the fee percentage, whether it is calculated on gross or net recovery, which costs the attorney will advance, whether the client is liable for costs on a loss, the scope of representation, the client's right to terminate, and how fee disputes will be resolved.

Is a written contingency fee agreement required?

In most states, yes. ABA Model Rule 1.5(c) requires contingency fee agreements to be in writing and signed by the client. The agreement must state the method of fee determination, including the percentage, expenses to be deducted, and whether the percentage is calculated before or after expenses.

What is the difference between gross and net fee calculation?

Gross fee calculation: the attorney's percentage is taken from the total settlement before costs are deducted. Net fee calculation: costs are deducted first, then the attorney's percentage is applied to the remainder. Gross calculation results in a higher attorney fee and lower client recovery.

Can I negotiate the contingency fee percentage?

Yes. The fee percentage is negotiable. Factors that may affect negotiation include: the strength of the case, the expected value, the complexity of the litigation, and the attorney's assessment of risk. Attorneys may offer lower percentages for strong, straightforward cases.

What is a sliding scale contingency fee?

A sliding scale adjusts the fee percentage based on when the case resolves. Common structures: 25% if settled before filing suit, 33⅓% after filing but before trial, 40% during or after trial, and 45% on appeal. This compensates the attorney for increased work at later stages.

Can I fire my attorney if I have a contingency fee agreement?

Yes. You can terminate the relationship at any time. However, the fired attorney may claim a lien on the case for the reasonable value of services rendered (quantum meruit) or the agreed percentage applied to the eventual recovery, depending on the agreement terms and state law.

You May Also Be Interested In

Where this applies: Contingency fee rules are set state by state. Check your own state's rules before acting.

Sources for this page

Every rule stated above is based on the primary sources below. Each link goes to the legislation, court rule or regulator itself so you can check it. Last verified 2 August 2026.

  1. ABA Model Rule 1.5 (Fees)

    Model, not law. Each state adopts its own version. Rule 1.5(d) bars contingency fees in most domestic relations matters and in criminal defence.

  2. Cal. Bus. & Prof. Code § 6147 (contingency fee agreements in writing)
  3. Tex. Gov't Code § 82.065 (contingent fee contracts in writing)
  4. New York Rules of Professional Conduct, Rule 1.5

Who wrote and checked this page

Written and published by
Edward & Amaury Solicitors (Edward & Amaury Ltd, company no. 12195443), regulated by the Solicitors Regulation Authority under no. 800525.
Legal review
This page has not yet been through independent legal review. It is written from the primary sources listed below, which you can check directly.
Review dates
Last reviewed 2 August 2026. Next review due 2 February 2027.

Fee rules change. California’s medical malpractice fee limits changed on 1 January 2023, and the QOCS rules in England and Wales changed on 6 April 2023. If you spot something out of date, tell us — we publish corrections.

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Where this applies: Contingency fee rules are set state by state. Check your own state's rules before acting.

Sources for this page

Every rule stated above is based on the primary sources below. Each link goes to the legislation, court rule or regulator itself so you can check it. Last verified 2 August 2026.

  1. ABA Model Rule 1.5 (Fees)

    Model, not law. Each state adopts its own version. Rule 1.5(d) bars contingency fees in most domestic relations matters and in criminal defence.

  2. Cornell LII — contingency fee
  3. Federal Rule of Civil Procedure 54(d) (costs to the prevailing party)

    A losing plaintiff may be ordered to pay the defendant's taxable costs. There is no US equivalent of QOCS.

Who wrote and checked this page

Written and published by
Edward & Amaury Solicitors (Edward & Amaury Ltd, company no. 12195443), regulated by the Solicitors Regulation Authority under no. 800525.
Legal review
This page has not yet been through independent legal review. It is written from the primary sources listed below, which you can check directly.
Review dates
Last reviewed 2 August 2026. Next review due 2 February 2027.

Fee rules change. California’s medical malpractice fee limits changed on 1 January 2023, and the QOCS rules in England and Wales changed on 6 April 2023. If you spot something out of date, tell us — we publish corrections.