The account where they give me the option of deposit the refund has 4 extra digits.

[CalCountry · Accepted solution]

If you are trying to enter your bank account number into TurboTax for the account into which your refund should be deposited, which one has more digits . . .(1) Your account number, or (2) the TurboTax entry spaces?

(1) If your account number seems too long, the extra four digits are probably a specific check number, which shouldn't be included in the entry to TurboTax.  You should contact your bank to verify your account number.
   -or-
(2) If the TurboTax entry has too many spaces, that's okay.   Enter your account number starting with the leftmost space and ignore any additional spaces in the TurboTax entry area.