In most circumstances it will take about 21 days from the date the IRS received your tax return and when the IRS issues the tax refund. However, this is only a target and Not a guarantee. It may take longer depending on the IRS procedures to approve a tax refund as each return is unique.
Once a tax return has been Accepted by the IRS or a State, TurboTax receives no further information concerning the tax return or the status of any tax refund.
If accepted by the IRS use the federal tax refund website to check the refund status - https://www.irs.gov/refunds
After the tax return has been Accepted by the IRS (meaning only that they received the return) it will be in the Processing mode until the tax refund has been Approved and then an Issue Date will be available on the IRS website.
See this IRS website for federal tax refund FAQ's - https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions
IRS - When to Call Us
Call us about your refund status only if Where's My Refund directs you to contact us.
IRS phone numbers and tax help options
