--- title: "Carlyle credit fund’s debt shift: collateral, capital calls and cost | Altss Blog" description: "Carlyle’s credit venture expanded portfolio financing, added a capital-call line and repaid mezzanine debt. Its June accounts show the balances and cost." canonical: "https://altss.com/blog/carlyle-middle-market-credit-fund-borrowing-capital-lines" --- [Altss Research](https://www.linkedin.com/company/altss) 4 min read Updated Oct 22, 2026 Share # Carlyle credit fund’s debt shift: collateral, capital calls and cost Carlyle’s credit venture expanded portfolio financing, added a capital-call line and repaid mezzanine debt. Its June accounts show the balances and cost. [Back to blog](https://altss.com/blog) Share [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=) [X](https://x.com/intent/tweet?url=&text=Carlyle%20credit%20fund%E2%80%99s%20debt%20shift%3A%20collateral%2C%20capital%20calls%20and%20cost) Copy link Carlyle’s Middle Market Credit Fund ended June 2026 with just over $1 billion of secured borrowing, spread across portfolio-backed financing and a new subscription line secured on investor commitments. During the same half-year, it repaid its outstanding company-provided mezzanine loan. The combination reveals a change in the fund’s financing stack as its middle-market loan portfolio grew. Carlyle Secured Lending’s [June-quarter filing](https://www.sec.gov/Archives/edgar/data/1544206/000154420626000055/csl-20260630.htm), filed on August 6, reports the joint venture separately from the listed lender’s consolidated accounts. Carlyle Secured Lending and Credit Partners USA each have 50% economic ownership; the venture owns a separate portfolio SPV. Its borrowing figures should therefore be read at that fund and subsidiary level. The owners each increased their capital commitment from $175 million to $250 million on February 11. Funding generally requires the credit fund board’s approval. Those commitments establish a larger potential owner contribution; they do not mean that $500 million was paid in during the half-year. ## Portfolio collateral and a larger facility The portfolio SPV’s Credit Fund Sub 2025 Facility increased from $800 million to $1.2 billion on May 6. It had $886.785 million outstanding at June 30, compared with $589 million at December 31. Subject to exceptions, substantially all investments held by that subsidiary secure the facility through a first lien. The larger contractual commitment consequently belongs to a specific portfolio-owning borrower, rather than to every Carlyle vehicle. That expansion came with repricing. The facility’s margin increased from 1.60% to 1.70% over SOFR or an alternative benchmark. Its revolving period ends in March 2028, while final maturity is March 2035. The disclosed unused-commitment fee is 0.50%, depending on usage, with a temporary exemption for $200 million of the new commitments until August 6. These dates and charges matter alongside the headline ceiling. ## Investor commitments support a separate line A second financing channel began on February 25. The Credit Fund Subscription Facility permits up to $200 million of borrowings and letters of credit, with a conditional accordion to $250 million. At June 30, $115.724 million was outstanding. Its first-priority collateral includes investors’ unfunded commitments, the right to call capital and related accounts: a different repayment support from the portfolio SPV’s investment collateral. The subscription line carries SOFR plus 1.80% and a 0.25% unused fee. Its stated maturity is February 2028, with one conditional extension of up to 364 days. A comparison based only on quoted spreads would miss the different collateral, fee provisions and availability periods; the filing does not present these lines as identical-risk substitutes. Meanwhile, the older Credit Fund Facility retained a $100 million maximum but had no June 30 balance. The fund repaid $40.5 million during the half-year. This company-provided mezzanine line bases availability on advance rates applied to portfolio investment values, net of certain other indebtedness. Its February amendment increased the spread from 5.50% to 6.50% over the greater of zero and SOFR. An unchanged ceiling thus coexisted with repayment and repricing. The two secured balances reconcile to the fund’s $1,002.509 million secured-borrowing liability: $886.785 million in the portfolio facility plus $115.724 million in the subscription line. The unused mezzanine maximum and owners’ capital commitments are separate figures. Subtracting outstanding borrowing from a ceiling would not, by itself, establish immediately drawable cash. ## More income, with higher financing expense The fund’s investments at fair value rose from $957.830 million at December 31 to $1,175.963 million at June 30. For the first six months of 2026, investment income was $44.294 million, versus $29.646 million a year earlier. Interest expense and credit-facility fees rose from $12.543 million to $21.449 million; net investment income increased from $16.154 million to $21.563 million. The larger income stream therefore came with a materially larger financing expense, while net investment income still grew. These are comparable fund-level first-half results, not an estimate of the return generated by the new borrowing. The note does not isolate each facility’s contribution to income or explain the entire expense change. Different margins, balances and fees also prevent a contractual spread from serving as an all-in funding-cost measure. For LP due diligence, this case makes the next financing question specific: which borrower pledges which assets, what is actually outstanding, and what expense accompanies the funded portfolio? It adds a balance-sheet view to the [different capital measures in private-credit fundraising](https://altss.com/blog/october-2026-private-credit-fundraising-capital-definitions). The June snapshot establishes a financing structure and its reported economics; it does not establish today’s available liquidity. 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