I agree that it is very frustrating. We finally know now that it is an IRS problem:https://www.forbes.com/sites/ambergray-fenner/2021/04/22/irs-computers-are-behind-on-debiting-schedu...TurboTax needs to give its customers a "heads up" which they have finally done. See this post: https://ttlc.intuit.com/community/tax-payments/help/when-will-my-tax-payment-go-through/00/25601
