good faith

UCC / CommercialLegal glossary term

Quick answer

GOOD FAITH usually means honest, reasonable behavior in a contract. In contracts, it matters because a party acting in bad faith can be sued for breach. Before signing, check for any good‑faith clauses and how they limit conduct.

Definitions

What is good faith?

Legal Definition

Good faith demands honest, reasonable conduct in contractual dealings, preventing parties from acting deceitfully or undermining the agreement's purpose. It obligates each side to cooperate and refrain from sabotage, creating enforceable duties under UCC § 1-304 and the Restatement (Second) of Contracts. Courts often scrutinize the “no‑reasonable‑grounds‑to‑believe‑the‑other‑party‑will‑benefit” qualifier.

Plain-English Translation

Imagine a hall pass that says you must stay in class and not wander; breaking that promise means the teacher can revoke the pass.

Contract relevance

Why good faith matters in contracts

Ignoring good‑faith duties can render a contract voidable for breach, and the breaching party bears liability for damages.

Document context

Where good faith appears in documents

Document typeSectionWhy it matters
UCC Article 2 Sales ContractSection 1-304Sets baseline duty of good faith in commercial transactions
ISDA Master AgreementSection 2(b)Requires parties to act in good faith during derivative trades
State Uniform Commercial CodeSection 2-207Imposes good‑faith requirement on contract modifications
Employment AgreementTermination clauseGood faith governs lawful dismissal practices

Contract language

Common contract wording

Contract wordingPlain-English meaningWhat to check
"Each party shall act in good faith and deal fairly with the other"Obligation to be honest and cooperativeVerify that no loophole allows avoidance of duties
"The Seller warrants that all representations are made in good faith"Guarantees truthful statementsCheck for any disclaimer that weakens the warranty
"No party shall engage in conduct that impairs the other’s reasonable expectations"Protects expected benefitsEnsure language is not overly vague

Red flags

Red flags to watch for

Risky wording patternWhy it may matterWhat to check
"Will act in good faith" without definitionMay be interpreted narrowly to limit liabilityRequest clarification or examples of prohibited conduct
"Subject to good faith" placed in a limitation clauseCould allow parties to escape obligationsInsist on explicit standards or remedies
"Good faith efforts" without measurable criteriaAmbiguous performance metricAsk for specific milestones or reporting requirements
"Seller may act in good faith" in a warranty clauseCould let seller deny claims arbitrarilyPush for objective standards or third‑party verification

Wording examples

Clearer wording examples

Vague wording

"Acts in good faith"

Clearer wording

"Acts honestly, transparently, and without intent to undermine the contract"

Vague wording

"Good faith efforts"

Clearer wording

"Takes all reasonable steps, documented in writing, to fulfill the obligation within 10 business days"

Note: “clearer” means easier to read — not legally reviewed or guaranteed safe.

Pre-signature checklist

What to check before signing

1

Identify every clause that cites good faith

2

Confirm whether good‑faith duty is mutual or one‑sided

3

Ask for concrete performance standards tied to the duty

4

Determine remedies for a good‑faith breach

5

Check if the clause limits liability for negligence

6

Verify alignment with applicable UCC provisions

7

Ensure any waivers of good faith are expressly prohibited

Party impact

How good faith affects each party

PartyWhat this party should check
SellerMust document all representations and avoid hidden defects
BuyerShould monitor seller performance and retain evidence of any sabotage
LenderNeeds to ensure borrower’s disclosures are made in good faith

Comparison

good faith vs similar terms

Related termPlain meaningMain difference from good faith
Fair dealingGeneral expectation of honestyGood faith is the legal enforceable standard, while fair dealing is a softer principle
Bad faithIntentional deception or sabotageDirect opposite; triggers damages and possible rescission
Implied covenant of good faith and fair dealingContract-wide dutySame concept, but often embedded in UCC and Restatement language

Missing or vague

If good faith is missing or vague

Without a clear good‑faith provision, parties may argue over what constitutes reasonable conduct.

Disputes often center on whether a delayed shipment was a legitimate business decision or a breach.

Courts will look to extrinsic evidence, increasing litigation costs and uncertainty.

The party claiming breach bears the burden of proving bad faith, which can be costly.

Vague language invites divergent interpretations and potential contract termination.

Document map

Document section map

Contract sectionWhat to inspect
DefinitionsLook for explicit good‑faith definition or incorporation of UCC language
PerformanceVerify duties are tied to good‑faith standards
RemediesIdentify penalties or damages for good‑faith breaches
TerminationCheck if termination rights depend on good‑faith compliance
Dispute ResolutionEnsure arbitration clause references good‑faith obligations

Visual model

Understand good faith fast

An explainer image has not been generated for this term yet.
01

Landlord refuses to repair a heating system after promising timely fixes, leading tenant to claim breach of good faith.

02

Borrower deliberately misstates income on a loan application, causing lender to void the loan for bad‑faith misrepresentation.

Document context

How good faith shows up in legal documents

What is it?

Good faith is a contractual doctrine that governs the performance and enforcement of agreements.

Why does it matter?

Ignoring good‑faith duties can render a contract voidable for breach, and the breaching party bears liability for damages.

When does it matter?

When a party takes an action that frustrates the other side's expected benefit under the contract, the good‑faith obligation is triggered.

Where is it usually seen?

Standard in UCC Article 2 sales contracts, ISDA master agreements, and many state contract statutes.

Who is affected?

Seller must honor honest dealing, avoiding hidden defects; Buyer can enforce the duty and claim damages if the seller acts in bad faith.

How does it work?

First, each party reviews the contract for any clause imposing a good‑faith standard. Then, during performance, they act honestly and avoid actions that would impair the other’s rights. Finally, if a dispute arises, the aggrieved party can seek remedial relief in court.

Share

Send this term to someone else fast

Copy the link, open native sharing, or scan the QR code from another device.

QR code for good faith

Scan to open this glossary page on another device.

Wikipedia

Good faith

In human interactions, good faith (Latin: bona fidēs) is a sincere intention to be fair, open, and honest, regardless of the outcome of the interaction. It is an important concept within law and business. The opposed concepts are bad faith, mala fides...

Open on Wikipedia →

Knowledge graph

Where good faith connects to real contract work

This layer links the term to nearby glossary entries, document use cases, and contract-risk guides so readers can move from definition to context without dead ends.

Source & disclosure

This page is an AI-assisted plain-English explanation based on LexPredict Legal Dictionary context and contract-review patterns. It is not legal advice. Meaning may vary by jurisdiction, industry, and exact clause wording.

Move from term to document

See the real contract language around this term

A glossary definition helps, but actual risk usually lives in the surrounding clause. Upload the full document and BrieflyGo will map plain-English meaning, red flags, and next steps.

Related Guides & Resources

Never sign without understanding every clause.

BrieflyGo reviews your contracts in plain English — instantly.

Try for free →