If you fail the tape test and lose your P will they kick you out for weight or time in service?

CPL Chaini Lotus, if you're not currently on the AWCP, then you'll be enrolled in it and have 12 months to come into standards.

Instead of reiterating a lot of the stuff (this has come up at least three times in the last week ... probably because start of the fiscal year and the annual weigh-ins...) that has been posted already, check out an excellent article on military.com*

The governing regulation is AR 600-9. You'll want to read over chapter 3.

Regarding them "kicking you out". If you're a AWCP failure, your command is required to process you for separation. That is not the same thing as "you will absolutely get kicked out". There have been numerous cases where the decision authority has decided not to kick a Soldier out. However, these cases have (probably) been where the Soldier was otherwise excellent and the leadership went to bat to keep the Soldier in. Only you can answer if this applies to you.

Take full advantage of the nutritional counseling and other programs the Army offers. I know that many struggle with weight, but in my experience, the majority of them are struggling but don't have to. You'll be amazed at what your body can do if you feed it correctly.

I know ... I know ... I sound like one of those people saying "you don't eat right". I used to be on the receiving end, and that was when I was a LOT more active than I am now. I always scoffed at "go see a dietician", but when I actually did, all it took was a few simple changes to my diet for me. Give it a shot, you have nothing to lose.

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* https://www.military.com/military-fitness/army-fitness-requirements/weight-control-program
* https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/ARN7779_AR600-9_FINAL.pdf

While I completely concur with Col Cudworth, I will add that there are very few medical reasons for the onset of weight gain. The usual suspect is failure to do enough push-always (from the table), snacking and alcohol.

You are an NCO, you are supposed to lead from the front my meeting and exceeding standards. Having said that, you are the most Junior of NCO and for that I would give you a pass, reverting you back to SPC, giving you the opportunity to earn it back. Get your stuff together and lead from the front.

June 2022 there was a temp extension of RCP's, for Corporal / Specialist it was extended to 12 years. https://armyreup.s3.amazonaws.com/site/wp-content/uploads/2022/06/23232814/APPROVED-TEMPORARY-RCP-ETP-EXTENSION-FOR-FY22-23-COHORTS.pdf
So for now, if you fail HW, you will be entered in AWCP, from there its a 12 month at most path to passing HW, or failure to show progress along the way and then your commander must initiate separation. Though not common, the approving authority can refuse to approve the separation and send it back to the company commander, usually, though that is only after a review of the packet finds administrative errors, missing documentation, or a failure to follow the required procedure.