Standard ACH loan repayment works by debiting a borrower's bank account on a scheduled date. This model has several structural failure points:
1. Insufficient funds: If a borrower's account balance is low on the ACH debit date — due to unexpected expenses, irregular income, or timing mismatches — the debit fails, triggering a returned payment, late fees, and the beginning of a delinquency chain.
2. Intentional avoidance: Borrowers experiencing financial stress may move funds to a different account or close the account entirely to avoid repayment.
3. Processing delays: ACH settlement typically takes 1–3 business days, creating timing gaps between when a borrower expects to pay and when the lender actually receives funds.
Pay by Paycheck eliminates all three failure modes. Repayment is collected at the payroll source before funds are deposited to the borrower's account — there are no insufficient funds by definition, no avoidance mechanism available to the borrower, and no settlement delay (the allocation is a payroll instruction, not a post-deposit debit).
For lenders, this translates directly to lower operational costs: fewer returned payment fees, less collections activity, less customer service overhead around missed payments, and lower provisioning requirements for expected credit losses.
Many lenders claim Pay by Paycheck increases their approval rates as it inherently reduces the risk profile of borrower applicants.