If we're referring to accessing our bank account that's connected to our QuickBooks Self-Employed account, yes we can still view the transactions. However, we can't update it and get further transactions that'll still about to be cleared by the bank.
On the other hand, if we meant about our QBSE account, yes, we can still access it as long as we have the log in credentials. If the account is cancelled or suspended, we still hold on to your account for a year. If we wish to resubscribe, the data are still available.
Feel free to get back to me if you need anything else. Thanks!