What do you do if your IRS tax refund still hasn’t arrived? Now that the IRS has received most 2023 tax filings, and should have sent your refund, it’s worth investigating. How to proceed depends on how you filed, who filed for you (such as an accounting firm, online tax prep service or tax preparer) and how you expected your refund to arrive. First, if you’re expecting an online refund deposit, carefully check your tax return to make sure you listed your banking information correctly.