Verifying Employee TIN Information

Once you have determined your common law employees and your total of full-time employees, an important detail in completing your ACA reporting is verifying your employee TINs (Tax Identification Numbers).

Importance of Employee TIN Verification

Failing to include an employee’s TIN, or providing the wrong TIN, could result in having your filing rejected, requiring corrections, re-issuing of employee copies, and potential penalties from the IRS. It is crucial to verify that you have the correct employee TIN information in order to avoid such consequences.


We created TINCorrect in order to help employers accurately file their IRS information returns. Sign up with TINCorrect now and get 10 searches for free!

With TINCorrect, you can verify Social Security Numbers (SSN) or company Employer Identification Numbers (EIN) before submitting your tax forms to the IRS.

TINCorrect works by allowing you to enter a TIN along with the associated individual or business name and verifying that the information provided to you matches with the information the IRS has on file. You can check each TIN individually or use bulk uploading for larger batches. TINCorrect will remove any invalid TINs and typically return the results to you within one business day.


By recognizing TIN issues before you file, you give yourself the opportunity to fix any errors prior to filing with the IRS and avoid penalties. Once you identify TIN issues, you can begin your TIN solicitation process. This helps to ensure that you have the most up-to-date information for your filing.

As always, it’s important to stay on top of the deadlines to ensure that you have all of your data verified with plenty of time to file. Check them out here:

BoomTax, The Boom Post, and its affiliates do not provide tax, legal or accounting advice. This material has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, tax, legal or accounting advice. You should consult your own tax, legal and accounting advisors prior to engaging in any transaction.

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