I filed my return by mail the first week of February and haven't seen anything - is there a chance it's lost? Can I just file online instead?

[ReginaM]

I wouldn't send another return just yet, as it takes a good while (Approximately 6 to 8 weeks) for the IRS to process a paper return.  You can check your refund status directly through the IRS using these links: Where’s My Refund on IRS.gov or the IRS mobile app, IRS2Go to check your status.

[Tunahawk]

I wouldn't file again, you'll have to wait until the paper filed return is processed.   According to IRS Website you can check your refund status 4 weeks after you filed.  I'd give it a few more days (perhaps the end of the week) and then check on "Wheres My refund" on the irs website.  Hope this helps.

[Anonymous]

go to the IRS website and check your refund status.    if nothing shows the next step is to

register to get a transcript of 2019 return.   then you can see if there's a transcript.

if yes the IRS got it 

if no call them before doing anything

if you had certain credits on your return - EIC or child care, those returns didn't start processing until 2/15 and a refund would take about 2 to 3 weeks from the date your return was actually processed assuming direct deposit.  a check in the mail refund can take 4 to 8 weeks from the date it's processed.