Columbia Bank has priced a $250 million subordinated debt offering, giving the bank additional capital to support growth and regulatory capital requirements while enabling its parent, Columbia Banking System, to redeem certain trust preferred securities.

Columbia Bank is raising $250 million through a subordinated notes offering as the bank looks to strengthen capital resources, support growth and facilitate a capital restructuring at its parent company.

The wholly owned banking subsidiary of Columbia Banking System priced the offering of 6.721% fixed-to-fixed-rate subordinated notes due 2036, with the transaction expected to close September 18, 2026, subject to customary closing conditions.

The notes will carry a fixed annual interest rate of 6.721% from issuance through September 18, 2031. After that date, the interest rate will reset to a fixed rate based on the five-year U.S. Treasury rate plus 195 basis points, with interest payable twice a year through maturity unless the notes are redeemed earlier.

For Columbia Bank, the financing is primarily about capital structure rather than conventional lending. The notes are intended to qualify as Tier 2 capital for regulatory purposes, giving the bank an additional layer of capital that can support its balance sheet and provide capacity for future growth.

The bank plans to use the net proceeds for general corporate purposes, including growth and capital adequacy. It also intends to return up to $250 million of capital to Columbia Banking System.

The Subordinated debt occupies a different position in a bank’s capital structure from deposits and senior obligations. Columbia Bank’s notes will be unsecured and subordinated, meaning they rank below the bank’s existing and future senior debt, including claims from depositors and general creditors.

The notes are obligations of Columbia Bank itself and are not guaranteed by Columbia Banking System.

That structure is important for investors because subordinated bank debt carries greater credit risk than senior obligations. In return, investors generally receive higher yields. The 6.721% initial coupon reflects the financing environment and the additional risk associated with the notes’ subordinated position.

The transaction also illustrates how regional and community-focused banks are managing capital as financial institutions navigate higher funding costs, regulatory requirements and changing balance-sheet conditions.

For banks, maintaining sufficient regulatory capital is critical because capital provides a buffer against losses and supports lending activity. Tier 2 capital forms part of the regulatory capital framework alongside higher-quality capital categories such as common equity Tier 1 and additional Tier 1 capital.

Subordinated notes can therefore serve as a financing tool that provides regulatory capital without issuing common equity. That can allow a bank to raise capital while avoiding some of the ownership dilution associated with an equity offering.

At the same time, debt financing creates an ongoing interest expense and introduces refinancing and market-rate considerations. Columbia Bank’s structure addresses some of those considerations through its initial fixed-rate period and subsequent Treasury-linked reset.

For investors, the five-year reset feature creates a different risk profile after 2031. The coupon will no longer remain at 6.721%; instead, it will be determined using the five-year Treasury rate at the relevant reset date plus 1.95 percentage points. That means the income profile can change with prevailing Treasury yields.

For Columbia Banking System, the planned redemption of trust preferred securities could simplify part of its capital structure. Trust preferred securities were historically used by banking organizations as a source of regulatory capital, although their treatment under post-financial-crisis capital rules has changed significantly.

The Columbia transaction is consequently relevant beyond the $250 million headline. It combines a new institutional debt issuance with regulatory capital management and the planned retirement of legacy securities.

The offering is also limited to institutional accredited investors under an exemption from Securities Act registration. The notes are not deposits and are not insured by the Federal Deposit Insurance Corporation or another government agency or fund.

From a fintech and banking-technology perspective, the transaction is less about a new digital product and more about the financial infrastructure that enables banks to continue investing, lending and managing their balance sheets.

As financial institutions increasingly invest in digital banking, payments infrastructure, cybersecurity and automation, their ability to fund those initiatives depends partly on maintaining adequate capital and liquidity.

Columbia Bank’s subordinated notes therefore provide a conventional but important mechanism for supporting that broader banking strategy. The transaction shows how capital markets remain closely connected to the technology and operational transformation taking place across financial services.

Market Landscape

Bank capital markets remain an important part of Banking Technology Innovation because capital adequacy influences how aggressively institutions can expand lending, invest in digital infrastructure and pursue strategic initiatives.

Top Insights

• Columbia Bank is raising $250 million through subordinated notes intended to qualify as Tier 2 regulatory capital.
• The notes carry a 6.721% fixed rate through 2031 before resetting to five-year Treasury plus 195 basis points.
• Proceeds will support corporate purposes and capital adequacy, while enabling Columbia Banking System to redeem trust preferred securities.
• The unsecured notes rank below senior debt, depositors and general creditors, creating additional risk for institutional investors.

Get in touch with our fintech expert