A daylight overdraft is an intraday negative balance in a depository institution's Federal Reserve account — occurring when outgoing payments (Fedwire transfers, ACH settlements) exceed incoming credits during the business day. The Federal Reserve Board's Policy Statement on Payments System Risk (PSR Policy) governs daylight overdraft limits, collateralization requirements, and fees charged to depository institutions (https://www.federalreserve.gov/paymentsystems/psr_about.htm); the Federal Reserve's Regulation J governs collection of checks and electronic funds transfers through Fedwire (12 C.F.R. Part 210, https://www.ecfr.gov/current/title-12/chapter-II/subchapter-A/part-210).
The Federal Reserve operates the nation's large-value payment infrastructure — Fedwire Funds and the FedACH system. Depository institutions (banks, credit unions, thrifts) maintain reserve accounts at their regional Federal Reserve Bank. When a bank sends Fedwire payments before it has received sufficient incoming credits, its Fed account momentarily goes negative — that is a daylight overdraft. Fed's PSR Policy framework: The Fed allows daylight overdrafts but controls them through a tiered system. Banks receive a 'net debit cap' — the maximum intraday overdraft allowed based on the bank's capital and its PSR risk management rating (either 'above average,' 'average,' or 'de minimis'). Uncollateralized daylight overdrafts above zero incur a fee of 0.5 basis points (annualized) for each minute they are outstanding. Banks that pledge collateral to the Fed can access a Collateralized Capacity, which is priced lower (0.0 bp fee for collateralized portions). Business relevance for large companies: Large corporations that are significant wire payment originators — real estate developers, insurance companies, government contractors — often coordinate wire timing with their treasury banks to minimize the bank's daylight overdraft exposure. Banks sometimes pass daylight overdraft fees back to high-volume wire clients or price them into treasury management services. The concentration of large commercial real estate or M&A closings on a given day can spike a bank's daylight overdraft position. Systemic risk context: Daylight overdraft management is a core element of payment system stability. The Federal Reserve's 2012 PSR Policy revision (https://www.federalreserve.gov/paymentsystems/psr_about.htm) introduced collateralized capacity to reduce systemic risk from uncollateralized intraday credit. The Fed's Financial Stability Report monitors aggregate daylight overdraft levels as an indicator of payments system stress (https://www.federalreserve.gov/publications/financial-stability-report.htm).
Indirectly. Banks manage daylight overdraft costs as part of their overall treasury and liquidity management. High-volume wire customers (real estate developers, title companies) may find that their bank's wire processing windows or same-day wire cutoff times are structured to manage the bank's intraday liquidity position. Banks with constrained daylight overdraft capacity occasionally delay large outbound wires to later in the day when incoming credits are expected — which can affect time-sensitive commercial real estate or M&A closings.
A standard (end-of-day) bank overdraft is a negative balance in a deposit account at close of business — subject to overdraft fees and credit review. A daylight overdraft is an intraday negative balance in a bank's reserve account at the Federal Reserve — it is a wholesale interbank credit facility, not a consumer or commercial banking product. Daylight overdrafts are governed by the Fed's PSR Policy; standard overdrafts are governed by Regulation E (consumer) or commercial account agreements.
Only indirectly. A business drawing its line of credit doesn't directly create a daylight overdraft at the Fed — that occurs at the interbank level. However, when a bank funds a large line of credit draw via Fedwire (e.g., a $10M same-day wire to a borrower's account), it creates an outbound Fed payment that contributes to the bank's intraday position. Banks with large same-day line draw activity manage this through intraday liquidity reporting and may establish operational controls on same-day draw timing for very large credits.