Better Way of Saying "I'm Busy"

You're swamped, but you can still respond kindly and clearly. Here are polite ways to say you're busy or need more time:

1. I'm tied up right now — can we schedule this for later?
2. I’m in the middle of something; can I get back to you?
3. I don’t have capacity at the moment.
4. That sounds important — can we find a time tomorrow?
5. I’m currently focused on a deadline and can’t take this on.
6. I’d love to help, but I’m booked today.
7. Can we postpone this until I’m free?
8. I need a little more time to handle this properly.
9. I’m unavailable right now; what’s the deadline?
10. Sorry, I can’t right now — can we revisit this later?