Late Tax Return

[nahsal51]

It's been over 3 weeks since my filing date. I have not received my direct deposit of my tax return. What should I do?

[DoninGA]

The 21 days is only an IRS target, it is not a guarantee.  You will need to be patient as the IRS is backlogged with over 7 million unprocessed tax returns.

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