27848005.gif | Internal Revenue Service

Skip to main content

An official website of the United States Government

Español
中文 (简体)
中文 (繁體)
한국어
Русский
Tiếng Việt
Kreyòl ayisyen

Information Menu

Help
News
Charities & Nonprofits
Tax Pros

Search Toggle search

Search

Include Historical Content

Include Historical Content
Help Menu Mobile
- Help
Menu Toggle menu

Main navigation mobile

File
Pay
Refunds
Credits & Deductions
Forms & Instructions

Search

Include Historical Content

Include Historical Content

Information Menu

Help
News
Charities & Nonprofits
Tax Pros

File

Overview
INFORMATION FOR…
Individuals
Business & Self Employed
Charities and Nonprofits
International Taxpayers
Federal State and Local Governments
Indian Tribal Governments
Tax Exempt Bonds
FILING FOR INDIVIDUALS
How to File
When to File
Where to File
Update Your Information
POPULAR
Get Your Tax Record
Apply for an Employer ID Number (EIN)
Check Your Amended Return Status
Get an Identity Protection PIN (IP PIN)
File Your Taxes for Free

Pay

Overview
PAY BY
Bank Account (Direct Pay)
Payment Plan (Installment Agreement)
Electronic Federal Tax Payment System (EFTPS)
POPULAR
Your Online Account
Tax Withholding Estimator
Estimated Taxes
Penalties

Refunds

Overview
Where's My Refund
What to Expect
Direct Deposit
Reduced Refunds
Amend Return

Credits & Deductions

Overview
INFORMATION FOR...
Individuals
Businesses & Self-Employed
POPULAR
Earned Income Credit (EITC)
Child Tax Credit
Clean Energy and Vehicle Credits
Standard Deduction
Retirement Plans

Forms & Instructions

Overview
POPULAR FORMS & INSTRUCTIONS
Form 1040
Form 1040 Instructions
Form W-9
Form 4506-T
Form W-4
Form 941
Form W-2
Form 9465
POPULAR FOR TAX PROS
Form 1040-X
Form 2848
Form W-7
Circular 230

Main navigation mobile

File
Pay
Refunds
Credits & Deductions
Forms & Instructions

Main navigation

File
Pay
Refunds
Credits & Deductions
Forms & Instructions

Info Menu Mobile

Help
News
Charities & Nonprofits
Tax Pros

This is a visual representation of the Mandatory Acceptance Letter (Letter 6408) — Page 1 of 2

Page Last Reviewed or Updated: 03-May-2024

Share

Footer Navigation

Our Agency
Know Your Rights
Resolve an Issue
Languages
Related Sites

Subfooter

Privacy Policy
Accessibility