It does appear that the amount was posted twice under different codes, but is on hold waiting for your return to be processed.
IRS Master File Transaction code 666 represents "Estimated Tax Credit Transfer In"
When taxpayer claims more ES credits than are posted in tax module, settlement is frozen and a TC 667 is generated and resequenced to search the spouse’s tax module. TC 666 represents the amount of ES credits transferred-in from the spouse’s module (may be zero if none available or spouse’s account is not found) and freeze is released. Also, credits to a deceased taxpayer’s spouse’s account. (Julian 999) Initialized when a CCC “F” return posts requesting credit elect.
Transaction code 710 represents "Overpayment Credit Applied from Prior Tax Period"
Credits Tax Module for amount of overpayment from prior year’s return which taxpayer elects to apply to the succeeding year’s estimated tax. . Also used to apply certain credits arising from adjusted employment tax returns. If Document Code 48, it is transferred from one tax period to another within the ADP system and therefore must be accompanied by TC 830. Document Code 58 is used during conversion to ADP to transfer these credits from the District Office to the proper Tax Module on the Master File.
You could either attempt to contact the IRS directly or continue to monitor the account to see how the payment is ultimately settled when your return is processed. See if either transaction is reversed: 710 can be reversed with input of 712, and 666 may be reversed with 662 or 667.
IRS Pub 6209 Master File Codes
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
