. . . will I have to pay a filing fee and how much is it?

Yes. You will need to pay a filing fee, an administrative fee, and a trustee fee. You may also have to pay additional fees for filing certain documents. For instance, an additional fee applies if you file an amended schedule of creditors because you failed to include all of your creditors in your initial filing. However, if you learn that one of your creditors has changed address, you will not have to pay an additional fee to correct the creditor’s address.  

Some jurisdictions allow certain debtors to proceed In Forma Pauperis, which means without paying a filing fee at the time of filing. If you have limited income, you may qualify to file without paying a fee.