FICA Tax Not Deducted During CPT

Hi,

 

I have been an exempt individual since 2016 (J1 and F1 visa). Hence, I passed the substantial presence test on July 3rd, 2021, and became a RA for tax purposes. And I used my CPT to work on a summer internship from June to September 2021. 

 

However, when I filled out the onboarding information for my internship in late May, since I have not passed the substantial presence test yet, I claimed to be an NRA. Therefore, during my entire internship, no FICA taxes were deducted. 

 

In 2022, as a RA, I used TurboTax to file my tax return for 2021 but I am a bit concerned about not paying the FICA taxes during my internship. Will that be an issue? Should I do anything to fix it?

 

Thanks a lot for your help!