I filed my 2018 taxes and they were accepted on January 16th 2019. I recieved a letter stating that there was a problem with my income reported. I had to do an amendment and I still have not received

[DoninGA]

The IRS will take up to 16 weeks or longer to process an amended tax return.

Assuming that you printed, signed, dated and mailed the federal amended tax return, Form1040X, use this IRS website for the status of an amended return - https://www.irs.gov/filing/wheres-my-amended-return

[Anonymous]

you efiled  before it was officially open - many others who did the same are also facing long delays.   it is also likely that as of the date you stated,  neither you nor the IRS had copies  of your official forms like W-2's and 1099's.   result return not processed.   you indicate it needed to be amended  most likely because you filled out the return without the official documents and thereby omitted important info - hence the need to amend.          did you use a method for the amended return that provided you with proof of delivery?       assuming the IRS, did get the amended return,  it goes into a big pile of returns that needs to be manually processed.   if the IRS got it, eventually it will be processed and if no further errors yo can expect your refund in 1 to 4 months.  

i would strongly recommend that when you go to file your 2019 return,   you wait a day or two after efiling officially opens.   This way, assuming no error, you'll get your refund in within a month rather than 6 to 10 months.