Professional
What to Say Instead of “I Don’t Know” at Work
Confident, professional ways to admit uncertainty at work without sounding unprepared, organised by whether you can find out, need to guess, or need to redirect the question.
By Vocabaura Editorial · Published 6 August 2026 · 6 min read
Quick answer
Instead of a flat “I don’t know,” say “let me find out and get back to you” when you can get an answer, “my best estimate is…” when a rough answer is useful, or “that’s outside my area — [name] would know” when someone else is better placed to answer. Each response keeps you sounding capable while still being honest about the gap.
Nobody expects you to know everything, but how you say “I don’t know” affects whether people trust your judgement anyway. A flat, unqualified “I don’t know” can sound like a dead end, especially in a meeting where someone needs an answer to move forward. The goal isn’t to fake certainty — it’s to show that even when you lack the answer, you have a plan for getting one.
Quick Answer
Choose your response based on what happens next: “let me find out and get back to you” when you can research it, “my best estimate is…” when an approximate answer is genuinely useful, and “that’s not my area — [name] would know” when someone else is better placed to answer. All three are more useful than a plain “I don’t know” because they give the other person a next step.
When You Can Find Out
Let me find out and get back to you
The most common and reliable option; use it whenever you can realistically follow up within a day or two. Example: “Let me find out and get back to you by end of day.”
I’ll check and confirm
Slightly more formal, good for written communication like emails or reports. Example: “I’ll check the figures with finance and confirm tomorrow.”
Give me a moment to verify that
Useful in live conversation, such as a call or meeting, when you want to look something up on the spot. Example: “Give me a moment to verify that — I want to make sure I quote the right number.”
When an Estimate Is Useful
My best estimate is…
Signals that the number or answer is a reasonable approximation, not a confirmed fact. Example: “My best estimate is that it’ll take about two weeks, though I’ll confirm once I’ve scoped it fully.”
Based on what I’ve seen so far…
Frames a partial answer as informed rather than guessed. Example: “Based on what I’ve seen so far, the issue looks like a server-side bug, but I haven’t confirmed it.”
I’d need to double-check, but I believe…
Good for offering a tentative answer while flagging that it isn’t final. Example: “I’d need to double-check, but I believe the contract renews in March.”
When Someone Else Should Answer
That’s outside my area — [name] would know
Redirects without deflecting responsibility; shows you understand the org structure. Example: “That’s outside my area — Priya on the legal team would know.”
I’m not the right person to answer that, but I can find out who is
Useful when you don’t know who owns the answer either, but are willing to track it down. Example: “I’m not the right person to answer that, but I can find out who is and loop them in.”
| Situation | Say instead of “I don’t know” | What it signals |
|---|---|---|
| You can research it | “Let me find out and get back to you” | Reliability and follow-through |
| A rough number will help | “My best estimate is…” | Informed judgement, clearly labelled |
| Someone else owns this | “That’s outside my area — [name] would know” | Awareness of the wider team |
| You’re unsure but leaning one way | “I believe…, but I’d need to confirm” | Honesty without vagueness |
What to Avoid
- Avoid guessing and presenting it as fact — an estimate should always be labelled as one.
- Avoid a bare “I don’t know” with no follow-up plan; it can read as disengagement rather than honesty.
- Avoid over-apologising for not knowing something outside your role — a brief redirect is enough.
- Avoid promising to “find out” and then forgetting to follow up — that damages trust more than the original gap in knowledge did.