Look, the IRS’s mailing system is like a bureaucratic maze designed by someone who really enjoys string theory. But you can outsmart it. If you’re in a hurry, or if the thought of a lost check gives you hives, just use Direct Pay or the Electronic Federal Tax Payment System (EFTPS). It’s free, it’s instant, and you’ll never have to ask Siri “where do I mail 1040-ES?” ever again.
And if you’re still going the paper route? Double-check the address on the IRS website—not that old form you found crumpled in your glove compartment. Seriously, I’ve seen people use addresses from 2018. The IRS moved. They moved for you. Now go mail that thing, and maybe buy yourself a stamp with a pretty flower on it. You earned it.
