You’re here because you’ve heard the phrase I’ll let you know and you’re not sure what to say next.
Maybe you want to keep the conversation going, respond with confidence, or just avoid sounding desperate.
No worries. Right here, you’ll find the perfect response for any situation—whether you’re texting, talking in person, or sending a message at work.
Different situations call for different ways to express the idea of I’ll let you know. Whether you’re being casual, formal, or playful, having the right words helps you sound natural and respectful.
This guide gives you more than 120 ways to say it across different settings. Let’s dive in.
Formal Ways to Say I’ll Let You Know
Use these in respectful or professional conversations, such as with teachers, mentors, or during polite interactions.
- I will get back to you shortly
- I will inform you once I decide
- I will share my response soon
- I will contact you with my answer
- I will respond once I confirm
- I shall let you know in due time
- I will follow up as soon as possible
- I will provide you with an update
- I will notify you at my earliest convenience
- I will reach out once I’m certain
- I will confirm when the time is right
- I’ll let you know after some consideration
- I will reply when I’ve finalized things
- I will keep you informed
- I’ll respond after further thought
- I’ll update you after some review
- I will let you know once the decision is made
- I’ll be in touch soon
- I will provide clarity shortly
- I will get back with more details
- I’ll share my final thoughts later
- I will touch base soon
- I will respond after careful thought
- I will clarify things later
- I’ll communicate my answer soon
- I’ll consider and let you know
- I will respond in due course
- I will provide a clear answer soon
- I’ll take time to decide and let you know
- I’ll let you know once I review all factors
- I’ll inform you once I assess everything
- I’ll give you my answer when I’m ready
Informal Ways to Say I’ll Let You Know
Perfect for chatting with friends, family, or casual acquaintances.
- I’ll hit you up later
- I’ll text you when I know
- I’ll get back to you
- I’ll check and let you know
- I’ll holler back
- I’ll figure it out and tell you
- I’ll ping you soon
- I’ll drop you a message later
- I’ll loop back to you
- I’ll keep you posted
- I’ll let you know what’s up
- I’ll catch you later
- I’ll give you a shout
- I’ll let you in on it
- I’ll come back to you
- I’ll DM you
- I’ll send a quick note
- I’ll buzz you
- I’ll keep you in the loop
- I’ll holler when I know
- I’ll send a heads-up
- I’ll think about it and let you know
- I’ll give it a think
- I’ll reply in a bit
- I’ll touch base with you
- I’ll let you know once I check
- I’ll loop you in
- I’ll update you later
- I’ll let you know soon as I can
- I’ll sort it and get back to you
- I’ll follow up soon
- I’ll message you later
Idiomatic Ways to Say I’ll Let You Know
Use these creative phrases when you want to sound expressive or playful.
- I’ll keep you in the loop
- I’ll circle back to you
- I’ll touch base later
- I’ll run it by my head first
- I’ll give you a heads-up
- I’ll drop you a line
- I’ll get back to you on that
- I’ll keep you posted
- I’ll be in touch
- I’ll sleep on it
- I’ll come back with an answer
- I’ll shoot you a message
- I’ll fill you in later
- I’ll bring you up to speed
- I’ll send a word your way
- I’ll weigh my options
- I’ll toss it around
- I’ll chew on it
- I’ll follow up
- I’ll call it and let you know
- I’ll pass on my answer
- I’ll drop a note
- I’ll put a pin in it
- I’ll let you in the know
- I’ll break it to you
- I’ll work it out
- I’ll touch base once I know
- I’ll clear my thoughts
- I’ll make up my mind and tell you
- I’ll reach a decision and share
- I’ll spill the beans later
- I’ll speak up when I decide
Professional Ways to Say I’ll Let You Know
Best for emails, meetings, or discussions with colleagues or clients.
- I will get back to you by end of day
- I will review and follow up
- I will confirm soon
- I will inform you after reviewing
- I will provide feedback shortly
- I will respond after alignment
- I will update you post-meeting
- I will revert with a decision
- I will circle back once I check
- I will reach out once finalized
- I will share details shortly
- I will touch base by tomorrow
- I will follow up after review
- I will send confirmation
- I will provide next steps
- I will reach out with clarity
- I will advise soon
- I will revert once approved
- I will reply once I gather more info
- I will align and revert
- I will notify after the review
- I will advise accordingly
- I will come back with an update
- I will share a timeline soon
- I will confirm after validation
- I will reach out by the deadline
- I will respond once I double-check
- I will send a response shortly
- I will return with the final call
- I will keep you informed as we move forward
- I will clarify the direction soon
- I will get back once confirmed
Conclusion
Knowing how to respond when someone says I’ll let you know can help you sound more confident, respectful, and clear. Every situation is different, so it helps to match your words with the tone of the conversation—whether it’s friendly, formal, idiomatic, or professional. Practice using these phrases and you’ll never be caught off guard again. You’ll know what to say, how to say it, and you’ll keep your conversations smooth and engaging.
Emilly Dickson is a renowned Urdu author, researcher, and storyteller known for his insightful take on contemporary social issues. His writing style is simple yet thought-provoking, engaging readers while encouraging them to reflect on deeper themes.
Professionally, he is an academic with a PhD in Urdu Literature and has been involved in teaching for over a decade. His works have been published in various national and international literary journals. Dr. Alvi is also a mentor to aspiring writers and an active participant in literary forums and events.
Selected Works:
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The Screams of Silent Words
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Travelers of Shadows
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A Story Stuck on the Lip
