<prompt> Human: I bought some computer things from newegg and they didnt charge me sales tax for 3 years2014-2016 now my state is coming after me for 300 in sales tax plus penalty fees. I feel like this isnt my issue its neweggs because they forgot to charge me for the tax. Its not like I chose not to pay it. Any advice?Edit: Tanks for the help. Im paying it and doing my own taxes next year.  <response>: Pay the tax.If the merchant doesnt charge you tax, you are supposed to put it on your tax return and pay it. 