When Requesting An Extension At Work messages in a Minimalist tone

I want to be transparent—I may need more time on this.

Let me know if this causes any issues.

I’m behind on this and want to handle it properly.

Happy to align on what works best.

I’d plan to deliver by [new date] with the extra time.

I can wrap this up by [new date] with the extra time.

I’d like to ask for a small extension to land this well.

I’m prioritizing quality on this one.

I’m not going to hit the original deadline—can we adjust it?

I’d prefer to deliver something solid than rushed.