The clearest alternatives to “I will keep you posted” are “I’ll keep you updated”, “I’ll keep you informed”, and “I’ll let you know.” For a more specific message, you can say exactly when or what you will update the person about.
Choose the Right Level of Formality for “I Will Keep You Posted”
- I'll keep you updated
- I'll keep you informed
- I'll let you know
- I'll keep you in the loop
- I'll send you an update
- I'll update you as things develop
- I'll let you know as soon as I hear more
- I'll share any new information
- I'll keep you briefed
- I'll follow up with an update
- I'll let you know if anything changes
- I'll send you the latest details
- I'll be in touch with any updates
I'll keep you updated
A direct, neutral alternative that works in almost any professional or personal context.
Example: I’ll keep you updated as the project progresses.
I'll keep you informed
Slightly more formal than “I’ll keep you updated” and useful when the information may develop over time.
Example: I’ll keep you informed of any changes to the schedule.
I'll let you know
Short and conversational. It works best when there is a specific answer, decision, or development still to come.
Example: I’ll let you know once I hear back from the supplier.
I'll keep you in the loop
A friendly workplace phrase that suggests the person will remain included in relevant developments or discussions.
Example: I’ll keep you in the loop as we finalize the plans.
I'll send you an update
Useful when you expect to provide a distinct update by email, message, or another channel.
Example: I’ll send you an update tomorrow afternoon.
I'll update you as things develop
A clear choice when the situation is changing and there may be several developments rather than one final answer.
Example: I’ll update you as things develop over the next few days.
I'll let you know as soon as I hear more
Reassuring when you are waiting on information from someone else. It makes the next trigger for contact explicit.
Example: I’ve asked the team for confirmation, and I’ll let you know as soon as I hear more.
I'll share any new information
Professional and specific when your role is to pass on relevant information as it becomes available.
Example: I’ll share any new information about the rollout.
I'll keep you briefed
A more formal phrase, often used when updates concern an ongoing issue, project, or decision.
Example: I’ll keep you briefed on the negotiations.
I'll follow up with an update
Useful when you want to signal both that you will return to the conversation and that the follow-up will contain new information.
Example: I’ll follow up with an update once the figures are confirmed.
I'll let you know if anything changes
Best when the current position is settled for now and you only need to contact the person if it changes.
Example: The meeting is still set for Monday; I’ll let you know if anything changes.
I'll send you the latest details
Works when the next message will contain concrete information rather than a general status update.
Example: I’ll send you the latest details once the agenda is finalized.
I'll be in touch with any updates
Polite and professional, especially as a closing sentence in an email.
Example: I’ll be in touch with any updates from the client.
Best Option for “I Will Keep You Posted” in a Professional Email
“I’ll keep you updated” is the best general-purpose choice. If you know what will trigger the next message, wording such as “I’ll let you know as soon as I hear more” is even clearer because it sets an expectation.
“Keep You Posted” Is Still Fine
“I’ll keep you posted” is natural and widely understood. It is a little more conversational than “I’ll keep you informed”, but it is not unprofessional in ordinary workplace communication.