FILO Tranche vs Second Lien
A FILO (first-in, last-out) tranche and a second-lien loan can both add debt behind a senior facility. They are not interchangeable. A FILO tranche usually shares a first lien and takes junior payment or enforcement rights in the same collateral pool. A second-lien loan holds a separate junior lien. That difference matters in a workout, in bankruptcy, and in how much control the junior capital has while the loan is performing. Financely is an advisor and arranger, not a lender. Any facility is subject to lender credit approval and the quality of the file.
Last reviewed: 12 November 2026.
The comparison in brief
| Question | FILO tranche | Second-lien loan |
|---|---|---|
| Lien position | Usually shares a first lien with the senior revolver or term lenders, with junior rights set in the waterfall | Holds a separate, junior lien on the same or a similar collateral package |
| How it is often documented | As a tranche inside the senior credit agreement, or as a sidecar tied to that agreement | As its own credit agreement, plus an intercreditor agreement with the first-lien lenders |
| Typical sizing logic | Often tied to an asset-based formula or to extra capacity on the same borrowing base | More often sized to cash flow or to a residual collateral value after the first lien |
| Control in a default | Senior lenders usually control enforcement, with standstill and voting rules for the last-out piece | Second-lien lenders have a distinct creditor position, still limited by the intercreditor standstill and release terms |
| When it tends to appear | When an ABL or borrowing-base facility cannot stretch further on the senior revolving line | When the borrower needs a separate junior layer, including in cash-flow or sponsored credits |
Labels vary. Some term sheets say "last-out" or "junior first-lien" rather than FILO. Some "second-lien" loans are split-lien deals, with each lender holding a first lien on a different asset class. Read the security and the intercreditor, not only the heading. Financely does not invent which structure a lender will offer, and it does not quote a standard margin or attachment point.
How a FILO tranche actually works
In the usual ABL setting, the senior revolver continues to revolve against eligible receivables and inventory. The FILO piece is often a term loan funded at closing, which is the "first-in" part of the name. It is "last-out" because principal and enforcement proceeds go to the senior revolving lenders first, and only then to the last-out lenders, after fees and interest as the documents provide.
Because the last-out lenders often share the first lien, they can have a stronger collateral position than a true second-lien creditor, even though they are junior in the waterfall. They also usually have less independent enforcement control. For the ABL use case, including how the tranche sits beside the revolver, see FILO tranche in an ABL facility. That post is the right place for the facility walk-through. This page stays on the comparison.
How a second-lien loan actually works
A second-lien loan is a separate debt obligation secured by a junior lien. The first-lien lenders have priority on the shared collateral. The second-lien lenders may still receive current interest while the loan is performing, subject to any payment blockage in the intercreditor, but they stand behind the first lien if the collateral is enforced. Their rights to release collateral, to object, and to take action after a standstill are negotiated, not assumed.
This structure is common in sponsored cash-flow deals and in some financings where the extra proceeds are not a simple extension of an ABL formula. For a product-level discussion, see second lien financing, and for the definition, second lien loan definition in private credit. A broader first-lien versus second-lien comparison, not limited to FILO, is on first lien vs second lien financing for private credit.
How to choose between them
Start with the senior facility you already have, or the one you can actually raise. If the senior debt is an asset-based revolver and the extra need is still a collateral story, a last-out tranche on that same pool may be the cleaner design. If the extra need is a cash-flow story, or the junior lender wants its own agreement and a distinct lien, second-lien debt may fit better. A stretched senior facility, rather than a junior layer, is a different design; see what stretch senior financing is.
Then look at control and future flexibility. A FILO inside one agreement can be simpler to administer and cheaper to document, but the last-out lenders live inside the senior agent's process. A second-lien loan adds a second creditor, a second set of amendments, and an intercreditor that will govern the life of the deal. Neither is "safer" in the abstract. Safety depends on the credit, the collateral and the documents. Sponsors also meet both structures in mid-market acquisitions. For the wider stack, see acquisition financing structures for mid-market sponsors.
A tour of the facility types sits on types of asset-based lending facilities. If you are still designing the senior line itself, start with asset-based lending services for businesses or the borrowing base facility guide, then return to this comparison when the gap above the senior line is clear.
What to send with a request
- The current or proposed senior facility, including whether it is asset-based, cash-flow, or a mix.
- A description of the collateral and any borrowing-base issues you already know about.
- Why you need capacity beyond the senior line, and whether this is a refinance, an acquisition or growth capital.
- Recent financials and, if relevant, a sources-and-uses sketch.
- Any term sheet already in hand, so the comparison can be made against real documents rather than labels.
Financely helps you compare a last-out tranche with second-lien debt, package the file, and run a lender process. We do not lend, sit in the syndicate, or guarantee that either structure will be approved.
Frequently asked questions
What is the difference between a FILO tranche and a second-lien loan?
A FILO tranche usually shares a first lien with the senior revolving lenders and is junior in payment or enforcement through the documents. A second-lien loan has a separate junior lien on the same, or a similar, collateral pool. Both can add capacity behind senior debt, but they do not give the junior capital the same rights in a workout. Financely is an advisor and arranger, not a lender.
Is a FILO tranche part of the same credit agreement as the revolver?
Often yes, though some FILO pieces are documented separately and then tied in through an intercreditor or an agreement among lenders. The form is a negotiation. What matters is lien position, payment waterfall, standstill and voting, not the label on the cover.
When would a borrower use second-lien debt instead?
When the extra capacity is better provided by a separate junior lender, when the collateral story is not a classic ABL borrowing base, or when the junior lender wants its own lien and a more distinct creditor identity. That is a credit and documentation choice, not a rule.
Does Financely provide FILO or second-lien loans?
No. Financely is an advisor and arranger. We help you compare the two structures and run a lender process. The lender makes the credit decision.
How do I start?
Use the Request a free estimate form, or start your engagement, and include the current facility, the collateral, and why you need capacity beyond the senior line.
Request a review
If you are choosing between a FILO tranche and second-lien debt and want an advisor to compare the structures, request a review. You can also start from asset-based lending services for businesses. Financely is an advisor and arranger, not a lender. Funding is not guaranteed.