How to prepare for Mac trade-in and understand the time limit for return?

imconfsd wrote:

i need details for mac trade in,

What to do before you sell, give away, trade in, or recycle your Mac - Apple Support

as is label prepaid?

Yes.

is there a time limit for returen?

Apple Trade In - Apple

I would recommend to trade-in at an Apple retail store. I know they are not always close by, but it is a lot less hassle depending on your travel time. When using the mail trade-in option, the condition of the device is subjective and you may find the value being lowered after it has been inspected. If you take it to the Apple Store for trade-in, you will get an immediate value for the device without any surprises.

Specifically for your question, yes the label is prepaid and you have 14 days to return the device.

Apple Trade In - Apple