I had to file an amended return because I forgot about an early 401K withdrawal I took in January 2018. The gross amount was only $2600. I had taxes deducted on the 1099 plus more deducted when I did the amended return on Turbo Tax and I ended up paying back about $260 after initially receiving a $1500 refund. Now I'm getting mail from the IRS saying I owe another $597 which matches exactly the tax that was withheld on my 1099-R. I am working on writing a letter to the IRS explaining this and sending it to them certified. Any other suggestions?
