I thought so, but given your question, I thought I'd check. The answer is, yes they do.
See http://www.ntu.org/on-capitol-hill/pay-and-perks/do-members-of-congress-pay-1.html
Thanks for your reference. Wouldn’t that be neat if lawmakers had to do their own income taxes? Justice. LOL
I think that the taxpayers actually pay the taxes for the federal employees and Congress. Our tax dollars pay their wages - so, the taxes paid out of those come from where? Our tax dollars. Does this make sense? It does to me. LOL
How big of them.