The CP10 confirms that the IRS applied your overpayment (refund) to next year's estimated tax, as you elected on your return. When you file your return and have an overpayment, you can choose to have it refunded or applied to the following year's estimated taxes. The CP10 confirms the application was made.
Why You Got This Notice
On your tax return, you checked the box (or your tax preparer did) to apply your overpayment to next year's estimated tax instead of receiving a refund. This is common for self-employed taxpayers and those with significant non-wage income who need to make quarterly estimated payments.
The CP10 also appears when the IRS adjusted your return and the overpayment amount changed. If you elected to apply $3,000 but the IRS reduced your overpayment to $2,500 after a processing change, the CP10 shows the adjusted application amount.
Verify the Amount
Compare the amount on the CP10 to what you expected. If the IRS made changes to your return that reduced your overpayment, the applied amount will be less than what you elected. Review any accompanying notices (CP11, CP12, CP21) that explain the adjustments.
If the applied amount is wrong and you wanted a refund instead, contact the IRS at the number on the notice. However, once the overpayment has been applied to estimated tax, reversing the election can be complicated and may require an amended return.
Track Your Estimated Tax Credits
The amount applied from your prior year overpayment counts as a first-quarter estimated tax payment for the following year. Factor this into your quarterly estimated tax payment calculations so you don't overpay or underpay for the rest of the year.
Questions about your estimated tax credits? Call us at (813) 229-7100.