Understanding your CP45 notice

 

What this notice is about

We couldn't apply your overpayment to your next year’s estimated taxes like you asked.


What you need to do

  • Read your notice carefully - it explains why we couldn't apply your overpayment and may include next steps.
  • Update your own copy of your tax return for your records.
  • Adjust the amount of your current year's estimated tax payments so you don’t end up underpaying.

You may want to


Frequently asked questions

An overpayment means you paid more tax than you owed during the year - either through paycheck withholding or estimated payments. You can choose to have this extra amount refunded or applied to your next year's taxes.

Call us at the number shown on your notice. We can explain exactly what happened with your tax return.

No. This notice is your confirmation of how we applied your overpayment to your account.


Tips for next year

Consider filing your taxes electronically. Filing online can help you avoid mistakes and find credits and deductions that you may qualify for. In many cases you can file for free.


Helpful information

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