The IRS normally sends correspondence in the mail. We mail millions of letters to taxpayers every year. Keep these important points in mind if you get a letter or notice:

  • Don't Ignore It. You can respond to most IRS notices quickly and easily.
  • Follow Instructions. Read the notice carefully. It will tell you if you need to take any action. Be sure to follow the instructions. The letter will also have contact information if you have questions.
  • Focus on the Issue. IRS notices usually deal with a specific issue about your tax return or tax account. Your notice or letter will explain the reason for the contact and give you instructions on how to handle the issue. You can learn more about your notice or letter on IRS.gov.
  • Correction Notice. If the IRS corrected your tax return, you should review the information provided and compare it to your tax return.

If you agree, you don't need to reply unless a payment is due.

If you don't agree, it's important that you respond. Follow the instructions on the notice for the best way to respond to us. You may be able to call us to resolve the issue. Have a copy of your tax return and the notice with you when you call. If you choose to write to us, be sure to include information and any documents you want us to consider. Also, write your taxpayer identification number (Social Security number, employer identification number or individual taxpayer identification number) on each page of the letter you send. Mail your reply to the address shown on the notice. Allow at least 30 days for a response.

  • Respond to Requests about the Premium Tax Credit. The IRS may send you a letter asking you to clarify or verify your premium tax credit information. You should follow the instructions on the letter. For more information about these letters, see the Understanding Your Letter 0012C page on IRS.gov/aca.
  • You Don't Need to Visit the IRS. You can handle most notices without visiting the IRS. If you have questions, call the phone number in the upper right corner of the notice. Have a copy of your tax return and the notice when you call.
  • Keep the Notice. Keep a copy of the IRS notice with your tax records.
  • Watch Out for Scams. Don't fall for phone and phishing email scams that use the IRS as a lure. We will contact you about unpaid taxes by mail first — not by phone. Be aware that the IRS does not initiate contact with taxpayers by email, text or social media.

IRS Tax Tips provide valuable information throughout the year. IRS.gov offers tax help and info on various topics including common tax scams, taxpayer rights and more.

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October 2018
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Upcoming Tax Dates

October 9 — Everyone
Federal Holiday (Columbus Day) - Details

October 11 — Employees who work for tips
If you received $20 or more in tips during September, report them to your employer - Details

October 15 — Individuals
If you have an automatic 6-month extension to file your income tax return for 2017, file Form 1040, 1040A, or 1040EZ and pay any tax, interest, and penalties due - Details

October 15 — Corporations
File a 2017 calendar year income tax return (Form 1120) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension Details

October 15 — Partnerships
Electing large partnerships: File a 2017 calendar year return (Form 1065-B). This due date applies only if you were given an additional 6-month extension - Details

October 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in September.

October 31 — Certain small employers
Deposit any undeposited tax if your tax liability is $2,500 or more for 2017 but less than $2,500 for the third quarter.

October 31 — Federal unemployment tax
Deposit the tax owed through 09-if more than $500.

October 31 — Social security, Medicare, and withheld income tax.
File Form 941 for the third quarter of 2018. Deposit or pay any undeposited tax under the accuracy of deposit rules .If your tax liability is less than $2,500, you can pay it in full with a timely filed return. If you deposited the tax for the quarter timely, properly, and in full, you have until 11-10 to file the return.

View More Tax Dates