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Look Up a ZIP Code ™. Enter a corporate or residential street address, city, and state to see a specific ZIP Code ™. Enter city and state to see all the ZIP Codes ™ for that city. Enter a ZIP Code ™ to see the cities it covers. Can't find what you're looking for?
To get details on an IRS notice or letter, search for it by number or topic. You can find the CP or LTR number on the right corner of the letter. What to do if you get a letter or notice. Review it carefully and keep it for your records. If we ask you to respond, act by the due date. What to do depends on your situation:
Help. Contact Your Local IRS Office. Taxpayer Assistance Center Office Locator. Taxpayer Assistance Center Office Locator. Locate the closest Taxpayer Assistance Center to you. All fields marked with an asterisk * are required. Search By Address. Search By State. Enter Address, City, State, or ZIP Code*.
Informed Delivery is a free service from USPS that shows you preview images of incoming mail, plus status updates about your incoming and outbound packages. Get notifications in a morning Daily Digest email, or at any time from the dashboard using your smartphone, computer, or USPS Mobile app.
Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages.
Use the U.S. Postal Service ® to mail your tax return, get proof that you mailed it, and track its arrival at the IRS. Federal Tax Deadline. The IRS considers a tax return filed on time if it is addressed correctly, has enough postage, and is postmarked by the due date.
Zip Code: A 5-digit number that identifies a particular postal delivery area in the United States. US Zip Code Example: 18235 or 18235-2239. Postal Code: A code of letters and digits that identifies a particular postal address. Postal Code Example: HP218R4.
