If you filled out the tax form with routing number for the check to be direct deposited, they'll retun the check to IRS and then either you call them and inform them of the problem and they'll issue you a check,, but you will be waiting much longer to get this cleared up.
The IRS will attempt to send the money electronically. If there is no open account to accept the deposit, the IRS will suspend the transfer of money. You should contact them and give them the current information.
The bank will reject the deposit and it will be returned to the IRS. You need to call the help line number and explain your problem. They can send you a paper check, or transfer to a new bank account.
yes they will send you a paper check if the account is closed and it is sent it back to the irs will take some extra time to get your refund if that happens