By Individual Filing for Bankruptcy -- Self-represented debtors may pay filing fees using the 

If you cannot afford to pay the entire filing fee at the time of the initial case filing, you may file an Application to Pay the Fee in Installments.

In Chapter 7 cases only, for individuals who cannot afford to pay either the full filing fee upon filing, or the fee over time (through installment payments), and who satisfy the poverty guidelines, there is an application process to request a waiver of the Chapter 7 filing fee, known as "In Forma Pauperis".