CFR › Title 25 › Part 171 › §171.55525 CFR §171.555Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkYou will incur the following costs:(a)An administrative fee to process your Payment Plan, as required by 31 CFR 901.9.(b)Interest, accrued on your unpaid balance, in accordance with § 171.545.