Just for payment you can go in without appointment. If you have questions or anything else appointment is definitely needed.
if you are going to make a payment yes, but for other matters I think that an appointment is needed.
My refund
If I make an appointment can they tell me why I still have got my 2019 tax refund.or why I got the first stimulus just fine with direct deposit but the second one they have no information available?
True to all above.
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