The IRS issues refunds in about 21 days. But it is a case by case basis, you can check the status of your federal return here: https://www.irs.gov/refunds If it has been longer than 21 days please see this TurboTax FAQ https://ttlc.intuit.com/replies/3302084
Also if the IRS has already released your refund it can take additional time for refunds to be processed after leaving the IRS, and for financial institutions to accept and deposit them to bank accounts and products like debit cards.
https://www.irs.gov/individuals/refund-timing