今注目を集めている Where to Mail 1040Esについて、詳しいまとめをご紹介しています。

Here’s where I get to be a little smug. If you’re reading this and thinking, “Wait, I can just pay online?” then yes, and you should. The IRS’s Direct Pay system is free, fast, and you never have to lick a stamp again. You go to IRS.gov, punch in your bank info, and boom—your estimated payment is logged in seconds. No envelope, no anxiety, no guessing games.

That said, I know some of you are old-school—maybe you like the ritual of a paper check, or you don’t trust “the cloud.” I get it. But know this: if you mail your 1040-ES, you have to allow for at least 7–10 business days for processing. And the IRS will use the postmark date as your payment date, so don’t try to mail it on April 15th at 4:55 PM and expect them to be impressed. They’ve seen that trick.

One More Weird Trick: The “Coupon” Inside the Envelope

You might be tempted to just shove a check into an envelope with “IRS” scribbled on it. Don’t do that. The 1040-ES comes with a voucher—a little perforated piece of paper that you must include. That voucher tells the IRS whose money it is. Without it, your check might get applied to “Some Guy Named Bob’s” account. And Bob will love you, but the IRS will not.

¿A dónde enviar los pagos del IRS? [Dirección postal del IRS 2026]

Also, write your Social Security number on the check itself. I know, it feels weird to hand over your SSN like a phone number, but it’s the only way they can match your payment. Think of it as a handshake between you and the Treasury. A slightly paranoid handshake.