What is subordinated debt and why it matters

Subordinated debt is an unsecured borrowing instrument that can qualify as regulatory capital under NCUA rules for eligible credit unions. A defining feature is its subordination: in the event of liquidation, these notes rank below all other senior obligations, including the NCUA share insurance fund.

Why does this matter? Because of the subordinated nature, these funds are eligible for net worth treatment, which turns these funds into valuable strategic capital for credit unions that want to grow, expand, or meet regulatory capital thresholds. For low-income designated credit unions (LICUs), or those expecting to achieve LICU status within two years, it can be a game-changer, supporting expansion into underserved markets while boosting net worth. This allows these credit unions to realize significant asset growth while maintaining compliance with net worth requirements.

Typical structures and key terms

Most credit union subordinated notes share common characteristics:

• Typical maturity terms: 10 years
  • Minimum of 5 years and a max of 20 years.
•  Amortization structure: Bullet maturity structure (no scheduled principal repayment schedule).
• Call Option: Callable in whole or in part after 5 years.
  • Annual “call” amount is typically 20% of the original issuance amount; matching the net worth eligibility schedule.
• Typical coupon structure: Fixed to Float - Fixed for 5 years; then floating thereafter
  • Interest paid monthly or quarterly. 
  • Floating rate leg tied to SOFR after the fixed period.
• Investor eligibility: Accredited investors only, per SEC Regulation D.

Why it’s not just another loan

Unlike traditional borrowings (e.g., Catalyst term loans or FHLB advances), subordinated debt can count toward net worth, which is valuable for credit unions facing capital pressure. However, it comes at a higher cost – often 200-400 basis points above typical secured borrowing rates.

When considering issuing, ROI analysis is essential. While subordinated debt strengthens regulatory capital, it can negatively impact earnings without a strong growth strategy. Credit unions should account for a variety of growth scenarios as well as stress testing before issuance.

What this means for credit unions in 2026

• Regulatory trends: NCUA continues to emphasize capital adequacy, making subordinated debt attractive.
• Market dynamics: Investor appetite remains strong, but pricing is sensitive to credit union financial health, liquidity flows and market interest rates.
• Execution tips: Early engagement is critical to streamline the application and issuance process.

Turning capital strategy into competitive advantage

Subordinated debt is more than a regulatory tool, it is a strategic lever that, when thoughtfully structured, can support sustainable growth, enhance balance sheet resilience and position credit unions to meet evolving regulatory and competitive demands. While it carries a higher cost than traditional borrowings, its ability to count toward net worth makes it uniquely powerful for credit unions with a clear growth strategy and disciplined capital planning process.

As regulatory scrutiny around capital adequacy continues and investor appetite remains strong, credit unions that proactively evaluate subordinated debt within a broader capital strategy will be well positioned to deploy it effectively, without compromising earnings or long-term performance.

For deeper insights into subordinated debt issuance, including strategies driving recent credit union issuances, guidelines for determining appropriate issuance size, cost and profitability analysis, and comparisons illustrating the impact of net worth treatment, connect with Catalyst’s Asset Management consulting team to see how your credit union can leverage subordinated debt to strengthen your capital and growth strategies.

You can also continue the conversation by joining our upcoming educational sessions, where our experts will explore market conditions, regulatory considerations and practical discussions shaping subordinated debt in 2026 and beyond.

Learn more

• Join our Q1 Insights & Outlooks session on February 5, 2026: Explore macro trends shaping subordinated debt issuance. 
• Attend our Drive Value with Subordinated Debt webinar on February 26, 2026: Learn how subordinated debt can drive value at your credit union (issuing or investing), the issuance and investing process, market rate indications and why starting the process now makes strategic sense.

Eligibility and regulatory considerations 

• Eligibility: Only low-income designated credit unions, or those expecting to achieve LICU status within 2 years, are eligible for direct net worth treatment. New credit unions and non-LICU Complex credit unions can treat subordinated debt towards risk-based capital.
• Regulatory Basis: NCUA Part 702 outlines requirements for inclusion in net worth and phase-out rules.