What Is Warehouse Lending? How Warehouse Funding Works for Lenders
Warehouse lending is short-term credit that funds a loan at closing and is repaid when the loan is sold. Here is how it works and who uses it.
Why it matters
- Warehouse lending is short-term financing that lets a mortgage lender fund loans at closing and repay the advance when the loans are sold or securitized.
- The loans themselves are the collateral, and many warehouse lines are legally structured as repurchase agreements, according to the OCC and industry sources.
- Warehouse lines are common in agency mortgage lending, but harder for private and hard money lenders to obtain because their loan buyers are smaller and less predictable.
Explainer: background on how this part of the market works.
Warehouse lending is short-term financing that lets a lender fund loans at closing and repay the money when it sells those loans to an investor. The provider, usually a bank or other institution, advances most of each loan's balance through a warehouse line of credit, and the loans serve as collateral until the sale. Customers Bank describes a warehouse line as "a short-term, revolving credit facility extended to mortgage originators."
How does warehouse lending work?
The lender closes a loan using an advance from the line plus some of its own cash. The loan is pledged to, or in many cases technically sold to, the warehouse lender. When an investor buys the loan, the sale proceeds repay the advance and the line is available again.
The Office of the Comptroller of the Currency's Comptroller's Handbook calls these loans "closed mortgages awaiting sale to a secondary market investor." The OCC also notes that some programs are written as purchases rather than loans but "function in a similar manner to traditional warehouse lines of credit." An industry guide by Mark Jury in the American Association of Private Lenders' Private Lender magazine (March 2026) says warehouse facilities are "often structured as repurchase lines."
Key terms at a glance
| Term | What it means |
|---|---|
| Advance rate | The share of each loan the line funds. Agency mortgage lenders Better and UWM disclose about 95% to 98% of principal. |
| Haircut | The remainder of each loan, funded with the lender's own cash. |
| Dwell time | How long a loan can stay on the line. Jury writes that more than 30 or 60 days typically triggers penalties. |
| Takeout | The sale or securitization that repays the advance. |
| Margin call | A demand for cash or collateral when the warehouse lender marks the loans down. |
| Pricing | Usually a floating benchmark such as SOFR plus a spread. |
Who uses warehouse lending?
Warehouse lines are most common among mortgage lenders that sell loans to Fannie Mae, Freddie Mac and other investors. Jury writes that warehouse facilities are "very common in the agency and conforming mortgage industry," where larger banks provide them.
Private and hard money lenders can use them too, but with more limits. Jury writes that buyers of private mortgages "are often hesitant to issue purchase guarantees," which makes it harder for a provider to trust the takeout. For business-purpose lenders, he says, warehouse lines come mostly from loan buyers, aggregators and a few non-banks, and typically require at least $50 million of annual origination volume. Simmons Bank, which lends to independent mortgage lenders, says it does "not provide warehouse financing for hard money loans."
Is warehouse lending the same as a warehouse loan for a building?
No. In lending, "warehouse" refers to holding loans for a short time before they are sold, not to a physical warehouse. Business loans to buy or build warehouse property are commercial real estate loans.
Learn more
- Our complete guide to the warehouse line of credit covers advance rates, costs, risks and providers in depth.
- Because a line's floating cost sets the floor under what a lender charges, our page on hard money and private lending rates today tracks loan rates alongside SOFR and prime.
- See warehouse line of credit requirements for private and hard money lenders for net worth, liquidity and documentation standards.
- For other ways to fund loans, read alternatives to a warehouse line for emerging lenders.
This explainer describes common practice. Terms vary by provider. Nothing here is financial or legal advice.
Sources
- Office of the Comptroller of the Currency, Comptroller's Handbook: Mortgage Banking (PDF) (Version 1.0, February 2014; reputation-risk references removed March 20, 2025)
- Mark Jury, American Association of Private Lenders, Build Scale with the Right Debt Instruments (March 18, 2026)
- Customers Bank, How to Get a Warehouse Line of Credit (updated September 2026)
- Simmons Bank, Warehouse Lending
- Better Home & Finance Holding Co., Form 10-K for 2025
- UWM Holdings Corp., Form 10-K for 2023
