I don't have a number in box 10 for amount allocable to IRR within 5 years. what should i put in the box so I can continue?

Leave that field blank (no 0's or spaces) unless there's a corresponding amount on your 1099-R. Let me know.,

Leave that field blank (no 0's or spaces) unless there's a corresponding amount on your 1099-R.

If you have additional questions or details regarding this, please feel free to post in the comments for further clarification.