{"concept_id":"ALTSS-CREDIT-006","slug":"senior-secured-debt","canonical_name":"Senior Secured Debt","aliases":["senior secured loan","senior loan"],"kind":"instrument","authority":"industry","facets":["INS"],"domains":["PRIVATE-CREDIT"],"display_title":"Senior Secured Debt","search_aliases":["what is senior secured debt","senior secured loan meaning","senior secured vs first lien","senior debt vs subordinated debt","is second lien senior secured"],"one_sentence_definition":"Senior secured debt is debt that is not subordinated in right of payment to other debt and is secured by a lien on some or all of the borrower's assets; first-lien and second-lien loans, unitranches and secured bonds qualify.","plain_english":"\"Senior\" describes the claim on the borrower's cash: no other lender is contractually entitled to be paid first. \"Secured\" means the lender also holds a security interest in collateral and can enforce against it. Several layers of debt can all be senior secured and still rank differently against the same collateral, so the label alone does not show who is repaid first.","parent_concepts":["capital-stack"],"child_concepts":["first-lien","second-lien","unitranche"],"related_concepts":["first-lien-vs-second-lien","intercreditor-agreement","collateral","subordinated-debt","recovery-rate"],"comparison_concepts":[],"not_the_same_as":[{"slug":"first-lien","distinction":"First lien is the highest lien priority within senior secured debt. Senior secured also includes second-lien loans and secured bonds."},{"slug":"subordinated-debt","distinction":"Subordinated debt is junior in right of payment. Senior secured debt is not, even when its lien ranks second."},{"slug":"collateral","distinction":"Collateral is the asset pool. Senior secured describes the claim that has both payment seniority and a lien on that pool."}],"formula_ids":[],"worked_examples":[{"title":"Illustrative recoveries under one label","paragraphs":["A company defaults with an enterprise value of $260m. It has a $200m first-lien loan and an $80m second-lien loan, both senior secured and sharing the same collateral. The first lien is repaid in full from collateral proceeds. The second lien receives the remaining $60m: a **75%** recovery, or a 25% loss given default. Both loans were \"senior secured\"; their lien priority decided the outcome."],"calc":{"fn":"recovery_and_loss","inputs":{"exposure":80,"recovered":60},"expected":{"recovery_rate":0.75,"loss_given_default":0.25},"tol":0.0005}}],"sections":[{"heading":"Two rankings: payment and lien","paragraphs":["Debt ranks along two separate dimensions, and they are often confused:","- **Payment seniority** concerns the right to be paid. Debt that is subordinated in right of payment has agreed, in its own terms or a subordination agreement, that senior debt is paid in full first from any source. Such terms commonly also block payments on the junior debt while the senior debt is in default. In a US bankruptcy case, a subordination agreement is enforceable to the same extent as under applicable nonbankruptcy law (11 U.S.C. 510(a)). [Subordinated debt](/glossary/subordinated-debt) and most [mezzanine debt](/glossary/mezzanine-debt) rank this way.\n- **Lien priority** concerns only the proceeds of collateral. A [second-lien](/glossary/second-lien) lender agrees that a [first-lien](/glossary/first-lien) lender takes the proceeds of shared collateral first; in the US, Article 9 of the Uniform Commercial Code allows a secured party to subordinate its priority by agreement (UCC section 9-339, as enacted by each state). That agreement alone does not subordinate the second-lien loan in right of payment. In a US bankruptcy case, the part of a secured creditor's allowed claim that exceeds the value of its interest in the collateral is an unsecured claim (11 U.S.C. 506(a)(1)), so a second-lien deficiency claim is generally an unsecured claim against assets that are not collateral; in a Chapter 7 liquidation, allowed general unsecured claims share pro rata (section 726(a)(2) and (b)). In Chapter 11, a class of secured claims can instead elect to have its claims treated as secured in full (section 1111(b)).","A third form, **structural subordination**, comes from corporate structure, not contract. Creditors of a holding company have no direct claim on its operating subsidiaries' assets; the holding company's claim on a subsidiary is that of a shareholder, which is paid after the subsidiary's creditors. In US bankruptcy law, for example, a Chapter 7 distribution pays creditors before any residual goes back to the debtor (11 U.S.C. 726(a)), and a Chapter 11 plan confirmed over a dissenting unsecured class gives nothing to junior claims or interests unless that class receives property worth the allowed amount of its claims (section 1129(b)(2)(B)). Guarantees from the subsidiaries give the holding company's creditors a direct claim on them."]},{"heading":"Where each layer sits","paragraphs":["From the top of the [capital stack](/glossary/capital-stack), a typical leveraged-company structure runs:","1. super senior revolving facility or first-out tranche (priority over other first-lien debt by intercreditor agreement);\n2. first-lien term loans, first-lien notes or a [unitranche](/glossary/unitranche);\n3. second-lien loans;\n4. senior unsecured notes or loans;\n5. subordinated or mezzanine debt;\n6. [preferred equity](/glossary/preferred-equity), then common equity.","Layers 1 to 3 are all senior secured. The [intercreditor agreement](/glossary/intercreditor-agreement), not the label on the instrument, fixes their order against the shared collateral; in the US, UCC Article 9 sets a default priority among perfected security interests (section 9-322(a)) and allows it to be changed by agreement (section 9-339)."]},{"heading":"Collateral and guarantees","paragraphs":["A senior secured package usually includes a security interest over substantially all assets of the borrower and its material subsidiaries, a pledge of their shares, and guarantees from those subsidiaries. Its value depends on what is excluded: assets outside the guarantor group, unperfected liens, permitted liens ranking ahead, and baskets that let the borrower move assets out of the collateral. Such transfers are the mechanism behind several [liability management exercises](/glossary/liability-management-exercise). See [collateral](/glossary/collateral)."]},{"heading":"Recovery and risk","paragraphs":["Senior secured lenders usually recover more than unsecured or subordinated creditors because they are paid first from collateral. The recovery still depends on the enterprise value at default, on how much debt ranks equally or ahead, and on how long the workout takes. Secured does not mean low risk. A first-lien loan at 6x leverage can have a worse expected loss than a second-lien loan at 4x total leverage. See [recovery rate](/glossary/recovery-rate)."]},{"heading":"How LPs read a \"senior secured\" strategy","paragraphs":["Fund documents and marketing may use \"senior secured\" for portfolios that include second-lien, last-out unitranche or holdco exposure. Ask for:","- the split of the portfolio by lien and by first-out/last-out position;\n- average leverage through each lender's tranche (its attachment and detachment points), not just total leverage;\n- the share of covenant-lite loans;\n- history of losses by lien."]}],"classification_rules":[],"calculation_rules":[],"common_mistakes":["Saying senior secured debt \"ranks first\" in the capital structure. Only the first-ranking lien does. Super senior facilities and first-out tranches can rank ahead even of other first-lien debt.","Defining senior secured debt as a loan. Senior secured bonds and notes are also senior secured debt.","Treating lien subordination as payment subordination. A second-lien lender is subordinated only with respect to the shared collateral.","Assuming security guarantees recovery. Recovery depends on collateral value at default and on any assets moved outside the collateral package."],"edge_cases":["In a first-out/last-out unitranche, the last-out lender holds first-lien security but is economically junior to the first-out lender by agreement among lenders.","Debt secured only on a holding company's shares in its subsidiary is secured, but structurally subordinated to all subsidiary-level creditors."],"external_standard_mappings":[],"source_ids":["SRC-US-UCC-9-322","SRC-US-UCC-9-339","SRC-US-USC-11-1111","SRC-US-USC-11-1129","SRC-US-USC-11-506","SRC-US-USC-11-510","SRC-US-USC-11-726"],"citations":[{"source_id":"SRC-US-USC-11-510","pinpoint":"11 U.S.C. 510(a)","supports":"Subordination agreements are enforceable in a bankruptcy case to the same extent as under applicable nonbankruptcy law","source":{"source_id":"SRC-US-USC-11-510","title":"11 U.S.C. 510 - Subordination (Bankruptcy Code)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/510","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"}},{"source_id":"SRC-US-UCC-9-322","pinpoint":"UCC 9-322(a)(1)-(2), (f)","supports":"Default priority among conflicting perfected security interests by time of filing or perfection","source":{"source_id":"SRC-US-UCC-9-322","title":"Uniform Commercial Code sec. 9-322 - Priorities among conflicting security interests in and agricultural liens on same collateral","publisher":"American Law Institute and Uniform Law Commission (uniform text; LII mirror)","document_type":"uniform act (model statute)","url":"https://www.law.cornell.edu/ucc/9/9-322","publication_date":"UCC Article 9 text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"uniform text; in force as enacted in state law","last_verified":"2026-10-01"}},{"source_id":"SRC-US-UCC-9-339","pinpoint":"UCC 9-339","supports":"Article 9 does not preclude subordination by agreement by a person entitled to priority","source":{"source_id":"SRC-US-UCC-9-339","title":"Uniform Commercial Code sec. 9-339 - Priority subject to subordination","publisher":"American Law Institute and Uniform Law Commission (uniform text; LII mirror)","document_type":"uniform act (model statute)","url":"https://www.law.cornell.edu/ucc/9/9-339","publication_date":"UCC Article 9 text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"uniform text; in force as enacted in state law","last_verified":"2026-10-01"}},{"source_id":"SRC-US-USC-11-506","pinpoint":"11 U.S.C. 506(a)(1)","supports":"Undersecured claim is secured to the value of the collateral interest and unsecured for the rest","source":{"source_id":"SRC-US-USC-11-506","title":"11 U.S.C. 506 - Determination of secured status (Bankruptcy Code)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/506","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"}},{"source_id":"SRC-US-USC-11-726","pinpoint":"11 U.S.C. 726(a)(2), (a)(6), (b)","supports":"Chapter 7 order of distribution (unsecured claims before any residual to the debtor); pro rata payment within a paragraph","source":{"source_id":"SRC-US-USC-11-726","title":"11 U.S.C. 726 - Distribution of property of the estate (Chapter 7)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/726","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"}},{"source_id":"SRC-US-USC-11-1111","pinpoint":"11 U.S.C. 1111(b)(1)(A), (b)(2)","supports":"Chapter 11 election by a class of secured claims to have claims treated as secured to the full allowed amount","source":{"source_id":"SRC-US-USC-11-1111","title":"11 U.S.C. 1111 - Claims and interests (Chapter 11), incl. the sec. 1111(b) election","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/1111","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"}},{"source_id":"SRC-US-USC-11-1129","pinpoint":"11 U.S.C. 1129(b)(2)(B)","supports":"Cramdown on a dissenting unsecured class: junior claims or interests receive nothing unless the class receives property worth its allowed claims","source":{"source_id":"SRC-US-USC-11-1129","title":"11 U.S.C. 1129 - Confirmation of plan (Chapter 11)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/1129","publication_date":"Current US Code text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"in force","last_verified":"2026-10-01"}}],"faq":[],"seo":{},"first_published":"2026-01-01","last_reviewed":"2026-10-02","last_modified":"2026-10-02","content_version":"2.0.0","url":"https://altss.com/glossary/senior-secured-debt","json_url":"https://altss.com/reference/concepts/senior-secured-debt.json","title":"Senior Secured Debt","formulas":[],"sources":[{"source_id":"SRC-US-UCC-9-322","title":"Uniform Commercial Code sec. 9-322 - Priorities among conflicting security interests in and agricultural liens on same collateral","publisher":"American Law Institute and Uniform Law Commission (uniform text; LII mirror)","document_type":"uniform act (model statute)","url":"https://www.law.cornell.edu/ucc/9/9-322","publication_date":"UCC Article 9 text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"uniform text; in force as enacted in state law","last_verified":"2026-10-01"},{"source_id":"SRC-US-UCC-9-339","title":"Uniform Commercial Code sec. 9-339 - Priority subject to subordination","publisher":"American Law Institute and Uniform Law Commission (uniform text; LII mirror)","document_type":"uniform act (model statute)","url":"https://www.law.cornell.edu/ucc/9/9-339","publication_date":"UCC Article 9 text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"uniform text; in force as enacted in state law","last_verified":"2026-10-01"},{"source_id":"SRC-US-USC-11-1111","title":"11 U.S.C. 1111 - Claims and interests (Chapter 11), incl. the sec. 1111(b) election","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/1111","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"},{"source_id":"SRC-US-USC-11-1129","title":"11 U.S.C. 1129 - Confirmation of plan (Chapter 11)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/1129","publication_date":"Current US Code text as published by LII (accessed 2026-10-01)","jurisdiction":"US","status":"in force","last_verified":"2026-10-01"},{"source_id":"SRC-US-USC-11-506","title":"11 U.S.C. 506 - Determination of secured status (Bankruptcy Code)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/506","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"},{"source_id":"SRC-US-USC-11-510","title":"11 U.S.C. 510 - Subordination (Bankruptcy Code)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/510","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"},{"source_id":"SRC-US-USC-11-726","title":"11 U.S.C. 726 - Distribution of property of the estate (Chapter 7)","publisher":"U.S. Congress (US Code via LII)","document_type":"statute","url":"https://www.law.cornell.edu/uscode/text/11/726","publication_date":"Current US Code text as published by LII (accessed 2026-10-02)","jurisdiction":"US","status":"in force","last_verified":"2026-10-02"}]}