Your tenant doesn't need permission to use Split Pay — they sign up on their own. But for them to pay you through Split Pay, you do need to do two things:
Accept the payment request they send you
Create a Split Pay landlord account and connect your bank
That's a one-time setup. After that, rent shows up in your bank account automatically — no invoicing, no chasing, no fees on your end.
So technically your tenant can sign up for Split Pay any time, but they can't actually pay you with it until you've accepted and connected your bank.
Get set up on the landlord side at rent.app — you'll see it branded "Split Pay by Rent App."
Worth knowing: Split Pay also works for mortgages and car loans. If you've got either, same idea — split the payment, lender gets paid in full and on time.