Ok how can I pay my California taxes if I don’t have a bank account ?

[xmasbaby0]

You must pay your state tax due using the state’s preferred method of receiving payment.  For most states that will be by making a payment to the state’s own tax website, or by mailing a check or money order.

https://ttlc.intuit.com/questions/1900884-what-are-my-options-for-getting-my-state-refund-or-for-pay...

Can you purchase a money order to mail in to CA?  Or can you pay by credit card?  If you do not have a credit card, you could get one of those pre-paid cards for cash and then use it on the state's site to pay.

[TomD8]

If you wish to pay by credit card, you can do so here:  https://www.ftb.ca.gov/pay/credit-card.html