Private Debt Red Flags: 10 Warning Signs for Savvy Investors

Private debt looks great on paper. Steady yields, low volatility compared to public markets, a nice diversifier. That's the sales pitch. I've spent over a decade in this corner of finance, and let me tell you, the gap between the pitch and the reality can swallow your capital whole if you're not careful. The industry's growth has attracted managers of wildly varying quality, and the complexity of the deals means red flags are often buried, not waved. This isn't about avoiding private debt; it's about navigating it with your eyes wide open. The biggest mistake I see? Investors getting dazzled by a promised IRR and forgetting to ask the gritty, operational questions that truly determine risk.

Fund Structure & Manager Red Flags

This is where due diligence starts and, sadly, where many investors stop. Looking beyond the glossy brochure is non-negotiable.

1. The "Black Box" Fee Structure

A management fee plus a performance fee is standard. The red flag is opacity. Be wary of fees layered on top of fees: monitoring fees, transaction fees, administrative fees that all flow back to the general partner. I reviewed a fund once that charged a 1.5% management fee, a 20% carry, and a 1% annual "portfolio oversight fee" paid to a sister company owned by the same principals. That's not alignment of interest; that's a toll booth on your investment. Always demand a full, itemized schedule of all fees and who they are paid to. If they hesitate, walk away.

2. Lack of Skin in the Game

The general partner (GP) should have a meaningful portion of their own net worth in the fund. A token 1% commitment isn't enough. Ask directly: "What percentage of the GP's liquid net worth is committed to this fund?" Silence or evasion is your answer. A strong manager will have 5% or more. Why does this matter? It's the ultimate test of conviction. If they won't risk their own money alongside yours on their own strategy, why should you?

3. Constantly Evolving "Core Strategy"

A manager who started in senior secured loans but is now pitching a fund for distressed special situations or venture debt is a major warning sign. This often indicates a "asset gatherer" mentality—raising money for whatever is hot in the market, not what they have proven expertise in. Track their historical funds. Has the strategy drifted? I've seen teams jump into direct lending because it's in vogue, with no prior experience in covenant structuring or workout situations. When the cycle turns, those are the first funds to blow up.

Deal-Level & Underwriting Red Flags

This is where the rubber meets the road. Poor underwriting is the root cause of most capital losses in private credit.

4. Covenant-Lite or "Covenant-Loose" Terms

The public markets have embraced cov-lite loans. In private debt, it's often a sign of desperation or poor bargaining power. The real danger is "covenant-loose"—technically having covenants, but set so wide they are ineffective. A maintenance covenant (like a debt-to-EBITDA ratio) with a 20% cushion before a breach is useless. Ask for examples of recent deals and their key covenant levels. How many times have they actually taken corrective action based on a covenant test? If the answer is "never," the covenants aren't working.

5. Over-Reliance on Adjusted EBITDA

Every company has adjustments. The red flag is in the aggressiveness. I call it "EBITDA add-back bingo." Common overly aggressive adjustments include:

• Projected synergies from a future acquisition that hasn't closed.
• "Run-rate" cost savings that are identified but not yet implemented.
• Adding back one-time owner's compensation that will likely be replaced with a new, still significant, salary.

6. The "Equity Cure" Trap

An equity cure provision allows a sponsor to inject more equity to fix a covenant breach. It sounds reasonable. The problem is when it becomes a recurring crutch for a fundamentally underperforming business. It masks deterioration. In your due diligence, ask: "In the last three years, how many of your portfolio companies have used an equity cure? How many have used one more than once?" A pattern of repeated cures is a sign of weak initial underwriting and a portfolio brewing with problems.

Operational & Reporting Warning Signs

These signals are often visible after you've invested. Ignoring them is how you go from a concerned investor to a distressed one.

7. Opaque and Infrequent Valuation Updates

Private debt isn't marked-to-market daily like a bond, but quarterly updates are standard. A red flag is consistent reporting of investments "at cost" or with minimal changes for multiple quarters in a volatile economy. It suggests the manager is avoiding recognizing bad news. Ask about their valuation methodology. Do they use an independent third-party valuation firm? How do they incorporate changes in the company's performance or market comparables? Vague answers are a problem.

8. Consistent Use of PIK Toggles

Payment-in-Kind (PIK) toggles allow a borrower to pay interest with more debt instead of cash. They are a useful tool in a deal's structure. However, when you see a manager's portfolio where a significant number of companies are consistently electing to PIK their interest, it's a massive warning. It means these companies are not generating enough cash flow to service their debt in the most basic way. It's kicking the can down the road and increasing the debt burden. Review portfolio reports for the "PIK usage" rate.

9. High Portfolio Concentration in One Story

This isn't just about sector concentration (though that's important too). It's about exposure to a single investment thesis or sponsor. For example, a fund heavily weighted in roll-up strategies in fragmented industries is betting on a specific operational playbook. If that playbook is flawed, multiple portfolio companies suffer simultaneously. Look for narrative concentration risk.

10. Key Person Departures and Team Instability

This one seems obvious but is often discounted. In private debt, relationships with sponsors and deep credit analysis are everything. If the lead originator or the head of credit risk leaves, the fund's engine is compromised. Don't just note the departure; ask what deals they sourced, who is managing those relationships now, and how the remaining team's workload has changed. High turnover among analysts is also a red flag for a toxic or high-pressure culture that leads to underwriting mistakes.

Expert Q&A: Your Private Debt Dilemmas