It depends.
Are you trying to determine where your refund is? If so, be aware there are have been significant delays in the IRS processing refunds.
IRS processing time and refund status
The online link is your best option to track your refund. I have attached a link with more answers from the IRS as to why your refund may be taking longer to process.
Federal refund questions
Also, be aware, the IRS operations are limited during the Covid-19 pandemic. Attached is a link with more information as to what departments are available to contact at the moment.
IRS operations
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