Why haven't I gotten any refund update from my tax return that's accepted and estimated refund on 02/21/24?

[ee-ea]

The IRS says they send refunds in 21 days for 9 out of 10 efiled returns. The date is an estimate, an educated guess, a rough idea. In other words, it should not be relied on. The IRS can not say how long that other 1 of the 10 will take. All you can do now is, wait. Wait for the pay off of your interest free loan to the government. Did you believe that the IRS is omnipotent, omnibenevolent and omniscient ?

  Check out https://www.irs.gov/wheres-my-refund   

[mesquitebean]

Was that date of 2/21/24 provided by TurboTax?

If TurboTax provided a refund date, that is an estimate for the average circumstance, usually based on a common 21-day interval.   Some returns require more processing time.   Go by what it tells you at the IRS website.   What do you see here:

https://www.irs.gov/wheres-my-refund

NOTE:   Here's a common refund delay that many encounter this time of year, if it applies to you:

If you claimed the Earned Income Credit  (EITC) or Additional Child Tax Credit (ACTC), then by law (PATH Act) the IRS cannot issue a refund on those returns until after February 15.   IRS goes on to say that those who claimed those credits should be seeing refunds deposited by February 27, although some filers with those credits may see it before then (but not before February 15.)