Quite unfortunately the Sprintax software does not support the preparation of a partial FICA refund claim form. If your employer wrongfully withheld Social Security and Medicare taxes (FICA) from your F-1, J-1, M-1, Q-1 or Q-2 income and then you switched to a non-exempt Visa (for example H-1B), we'd recommend you to contact an accountant who specializes in US taxes for further assistance with that matter.