If I were the first author and my supervisor is the second, who should be paying for the registration of a paper for conference?

Should I pay the full amount or should my supervisor and I split the fees equally?

Corresponding author pays then reclaims from the University if funded.

I would double-check with your finance department.

Ian (Mackem_Beefy)

Problem is, both of my supervisors and I are corresponding authors; however there are two more authors but they are not corresponding authors.
Do they have to pay too?