It's FICA, not FICO (FICO is credit score)

You can use quicken.com to file monthly payroll tax, or if you have account at wells fargo, they can also help you file monthly, for a fee.

Of course, you can do it manually to avoid fees.

For LLC, if you are a partner, you don't file payroll tax, only quarterly personal income tax, which includes 15% self employment tax.

I'm not accountant, consult CPA for legal advice.