We revisit our explainers on why our tax system is the way it is, and how to comply with it, just in time for tax day.  

We haven't always had a federal income tax, and in the beginning, it only applied to the very richest Americans. So how did we end up with the permanent income tax we have today, with all its complicated rules about everything from pre-tax income to deductions and credits? And what does it actually pay for?  

• WIN A NEW CAR OR 25K IN CASH DURING NHPR'S SUMMER RAFFLE! GET YOUR TICKETS HERE.
• CLICK HERE: Visit our website to see all of our episodes, donate to the podcast, sign up for our newsletter, get free educational materials, and more!
• To see Civics 101 in book form, check out A User's Guide to Democracy: How America Works by Hannah McCarthy and Nick Capodice, featuring illustrations by Tom Toro.
• Check out our other weekly NHPR podcast, Outside/In - we think you'll love it!