Key takeaways
Electronic payments are now the default.
New authorization forms to know: Applicants can use Form G-1450 to authorize a credit or debit card charge or Form G-1650 to authorize an ACH debit from a U.S. bank account when filing by mail.
Paper payments only in rare cases: Exemption is approved with Form G-1651, or emergency advance parole (Form I-131) is filed in person at a USCIS field office.