What is it?
It functions as a core doctrine within contract law and is frequently invoked in commercial disputes to govern the interpretation of ambiguous clauses or performance obligations.
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 requires honest, fair dealing in transactions, meaning parties must act with reasonable intent and sincerity rather than malice or self-interest alone. This principle obligates a party to uphold the spirit of an agreement, not just the letter; it prevents opportunistic behavior when interpreting contractual duties. The most critical qualifier here is 'reasonable' good faith, which sets an objective standard for conduct.
Plain-English Translation
Good faith means you act fairly, like promising your friend you'll share your favorite toy without secretly hiding it. It’s more than just saying yes; it's meaning it when you say yes.
Contract relevance
Why good faith matters in contracts
Ignoring good faith can lead courts to void an entire agreement or award damages based on breach, placing the risk squarely on the party acting dishonestly. A bad actor faces liability for their unfair dealings.
Document context
Where good faith appears in documents
| Document type | Section | Why it matters |
|---|---|---|
| UCC Article 2 Sales Contract | Section 1-304 | Sets baseline duty of good faith in commercial transactions |
| ISDA Master Agreement | Section 2(b) | Requires parties to act in good faith during derivative trades |
| State Uniform Commercial Code | Section 2-207 | Imposes good‑faith requirement on contract modifications |
| Employment Agreement | Termination clause | Good faith governs lawful dismissal practices |
Contract language
Common contract wording
| Contract wording | Plain-English meaning | What to check |
|---|---|---|
| "Each party shall act in good faith and deal fairly with the other" | Obligation to be honest and cooperative | Verify that no loophole allows avoidance of duties |
| "The Seller warrants that all representations are made in good faith" | Guarantees truthful statements | Check for any disclaimer that weakens the warranty |
| "No party shall engage in conduct that impairs the other’s reasonable expectations" | Protects expected benefits | Ensure language is not overly vague |
Red flags
Red flags to watch for
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
| Party | What this party should check |
|---|---|
| Seller | Must document all representations and avoid hidden defects |
| Buyer | Should monitor seller performance and retain evidence of any sabotage |
| Lender | Needs to ensure borrower’s disclosures are made in good faith |
Comparison
good faith vs similar terms
| Related term | Plain meaning | Main difference from good faith |
|---|---|---|
| Fair dealing | General expectation of honesty | Good faith is the legal enforceable standard, while fair dealing is a softer principle |
| Bad faith | Intentional deception or sabotage | Direct opposite; triggers damages and possible rescission |
| Implied covenant of good faith and fair dealing | Contract-wide duty | Same 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 section | What to inspect |
|---|---|
| Definitions | Look for explicit good‑faith definition or incorporation of UCC language |
| Performance | Verify duties are tied to good‑faith standards |
| Remedies | Identify penalties or damages for good‑faith breaches |
| Termination | Check if termination rights depend on good‑faith compliance |
| Dispute Resolution | Ensure 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 necessary repairs on short notice; outcome: tenant sues for constructive eviction.
02
Borrower delays providing required financial statements; outcome: lender defaults the loan application and demands immediate repayment.
03
Franchisor unilaterally changes royalty rates without consultation; outcome: franchisee challenges the change based on bad faith negotiation.
Document context
How good faith shows up in legal documents
Why does it matter?
Ignoring good faith can lead courts to void an entire agreement or award damages based on breach, placing the risk squarely on the party acting dishonestly. A bad actor faces liability for their unfair dealings.
When does it matter?
This standard activates when a specific contractual duty is ambiguous, or when a dispute arises over how a performance milestone was met within the agreed timeline.
Where is it usually seen?
You see this concept explicitly cited in UCC § 1-304 (Good Faith and Fair Dealing) and frequently applied by courts reviewing clauses in loan agreements and M&A contracts.
Who is affected?
The creditor must act in good faith when enforcing security interests, while the tenant risks eviction if they fail to act in good faith regarding lease maintenance obligations.
How does it work?
First, a party must demonstrate an honest intent to perform their duty. Then, that performance must align with what a reasonable person would expect under similar circumstances. Finally, any deviation from this standard constitutes a breach of the implied covenant.
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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.
9nodes
Glossarysecurity interestsecurity interest often shapes similar contract language wording, negotiation leverage, and the plain-English meaning of the clause...Glossaryliabilityliability often shapes similar contract language wording, negotiation leverage, and the plain-English meaning of the clause around...Glossarymaterial breachmaterial breach often shapes similar contract language wording, negotiation leverage, and the plain-English meaning of the clause a...
BGRisk context hubGlossary meaning, document paths, and adjacent risk pages connected around this clause.
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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.
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