Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
contract effective
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "contract effective" is correct and usable in written English. You can use it when discussing the validity or enforceability of a contract. For example, "The contract effective date is set for January 1st." Alternative expressions include "valid contract" and "enforceable agreement."
✓ Grammatically correct
Formal & Business
News & Media
Wiki
Science
Alternative expressions(20)
effective date
contract expires
takes effect
valid as of
contract in force
agreement effective
agreement in effect
binding agreement
agreement in force
agreement
still valid
existing agreement
contract in effect
compact in effect
arrangements in effect
contract is in effect
contract is implemented
agreement seen
agreement acknowledged
agreement finalized
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
9 human-written examples
The Tigers have terminated Lodge's contract "effective immediately".
News & Media
The decision was made official when Oregon announced it had terminated Kent's contract effective June 30.
News & Media
But in a statement that day, the station said she "has been released from her contract effective immediately".
News & Media
Edo de Waart will become chief conductor of the Santa Fe Opera under a four-year contract effective Oct. 1, The Associated Press reported.
News & Media
Almost three-quarters of the 3,957 union members who voted this morning approved the contract, effective Dec. 2, as the union's 24-member negotiating team had recommended.
News & Media
"The Cronulla Shark Football Club has today after careful consideration and lengthy deliberation, including discussions with senior NRL management, made a decision to terminate Todd Carney's NRL playing contract effective immediately," read the statement issued by chief executive Steve Noyce.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
NORTH CAROLINA-GREENSBORO--Signed Fran McCaffery, men's basketball coach, and Lynne Agee, women's basketball coach, to five-year contracts, effective July 1.
News & Media
Ford signed proclamation Pub.L. 93-373, which legalized gold ownership and also made it legal to include gold clauses in contracts, effective 1977.
News & Media
The new contract becomes effective tomorrow.
News & Media
Under the new contract, minimally effective and ineffective teachers will be the first to leave.
News & Media
Mr. Venzago, whose appointment under a four-year contract is effective immediately, becomes the sixth music director of the 72-year-old ensemble and succeeds Raymond Leppard, now the conductor laureate.
News & Media
Expert writing Tips
Best practice
In formal drafting, ensure this phrase is accompanied by a specific noun (e.g., 'playing contract', 'employment contract') to avoid ambiguity about what is being activated.
Common error
Avoid using 'contract effectively' when you mean that the contract has become valid. 'Effectively' suggests how the contract works in practice (e.g., 'the contract effectively ends the dispute'), whereas 'effective' denotes the legal status of being in force.
Source & Trust
96%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
In the examples provided by Ludwig, "contract effective" functions as a post-positive adjective phrase. It often follows a noun and acts as a reduced relative clause, as seen in the phrase "contract effective immediately", which is a shortened version of "the contract which is effective immediately". Ludwig AI confirms this is a standard construction in professional reporting.
Frequent in
Formal & Business
45%
News & Media
40%
Wiki
10%
Less common in
Science
3%
Social Media
1%
Encyclopedias
1%
Ludwig's WRAP-UP
The phrase "contract effective" is a robust and concise tool for designating the activation period of legal documents. According to Ludwig, it is most frequently encountered in professional news reporting and business contexts, often paired with temporal markers like "immediately", "July 1", or "tomorrow". It serves as a more formal alternative to <a href="/s/agreement+starting" target="_blank" rel="alternative">agreement starting or <a href="/s/takes+effect" target="_blank" rel="alternative">takes effect. While its frequency is classified as Uncommon, its presence in high-authority sources like The New York Times and The Guardian underscores its reliability. Writers should use it when they need to be precise about the onset of contractual validity without using unnecessary wordiness. Ludwig AI highlights that it is grammatically correct and widely accepted in institutional English.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
agreement becomes effective
Uses a verb to describe the transition into a state of validity.
agreement takes effect
A verbal phrase focused on the moment the terms become active.
effective date of contract
A formal noun phrase often used in the heading of legal sections.
valid as of
Standard prepositional phrase used for dating official documents.
contract start date
A more common noun-based way to identify the commencement point.
contract in force
Suggests the agreement is currently active and binding.
enforceable from
Emphasizes the legal power of the document starting from a specific time.
binding from
Focuses on the obligation aspect of the agreement.
contractual commencement
Highly formal and academic variant for business settings.
operative agreement
Describes the agreement itself as being in an active state.
FAQs
How do I use "contract effective" in a formal sentence?
You can use it to specify a start date, such as: "The board voted to terminate the <a href="/s/employment+contract" target="_blank" rel="alternative">employment contract, "contract effective" at the end of the week."
What is the difference between "contract effective" and "effective date"?
While "contract effective" describes the status of the document starting at a point, <a href="/s/effective+date" target="_blank" rel="alternative">effective date is the specific noun phrase referring to that date itself.
Is "contract effective" correct in British English?
Yes, it is common in both British and American English, especially in news and legal reporting, such as when a sports <a href="/s/contract+expires" target="_blank" rel="alternative">contract expires or begins.
Can I say "contract starting" instead?
Yes, <a href="/s/contract+starting" target="_blank" rel="alternative">contract starting is a more casual alternative that is perfectly acceptable in less formal business communications.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
96%
Authority and reliability
4.8/5
Expert rating
Real-world application tested