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IRS notices are letters sent to inform taxpayers of important tax information. Each one is different, but we can explain what the CP16 is about.
Understanding your CP16 notice
The IRS made changes to your tax return due to a miscalculation or errors found on your tax return. Those corrections resulted in changes to your refund. Since you owed another tax debt, all or part of your refund was applied to the outstanding tax debt.
Type of Notice
Tax return error; taxes owed for previous, or other types of, tax returns
Why you received the CP16 notice
You received a CP16 notice because the IRS made changes to your tax return to correct a miscalculation and that led to a change in your refund. However, that additional money was applied to tax debt you owe the IRS.
Likely next steps
As always, carefully read the notice, which will explain the changes to your return and the amount applied to your existing tax debt.
If you disagree with the notice, you need to contact the IRS at the toll-free number listed on the CP16 in the top right-hand corner or by mail within 60 days.
CP16 Notice deadline
There is no deadline unless you disagree with the IRS changes. Then, you have 60 days from the date of the notice to contact the IRS.