Some checks are not being cashed by certain financial institutions as they exceed the limits in place for the company. In some situations, these checks are being referred to as fraudulent; however, they are not. Make sure the name on your check matches the name on your bank account.
If you don't have a bank account, you can go to your local bank to open an account, so you can deposit the check. Some banks will allow you to open an account but will retain a small portion of the deposit until the check clears. Another option is to find a bank that can cash large checks without any restrictions.
If the bank has concerns with the validity of the check, they can contact Intuit directly at 1-800-780-9247. A dedicated team is available for verification purposes. Also, if the check is uncashed after 90 days, the check will be returned to the IRS. The taxpayer can then work with the IRS to receive their tax refund.