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Byline Bancorp Manages Assets to Keep Exemption

The Chicago-based bank plans to stay under the $10 billion asset limit through the end of 2026.

Updated on Oct. 24, 2026 in Financial Services

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Byline Bancorp maintained $9.9 billion in total assets through September 2026, intentionally keeping growth below the $10 billion federal regulatory threshold. AI Illustration. Upload story photo >

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Byline Bancorp reported $9.89878 billion in total assets as of September 30, 2026, as it works to maintain its current regulatory status. The firm expects its fourth-quarter net interest income to fall between $103 million and $105 million.

Why it matters

The bank is intentionally managing its growth to remain below a $10 billion asset threshold, which currently provides an exemption from Federal Reserve debit-card interchange standards. Crossing this limit would trigger new requirements under the Durbin Amendment.

Byline Bancorp reported third-quarter 2026 net interest income of $103.676 million with a net interest margin of 4.33%. Total assets decreased by $33.7 million between June 30 and September 30, 2026, primarily through limited bond purchases.

The players

Byline Bancorp

This Chicago-based financial institution provides banking services to small and medium-sized businesses and consumers.

Federal Reserve

The central banking system of the United States regulates financial institutions and sets standards for debit-card interchange fees.

Illinois State Bancorp

This entity is an acquisition target for Byline Bancorp, with a deal expected to close in early 2027.

The details

To manage its asset size, the bank is limiting bond purchases while awaiting the closure of its Illinois State Bancorp acquisition. While Byline expects to exceed the $10 billion mark in 2027, it anticipates no impact from Durbin Amendment standards until the second half of 2028.

Timeline

  1. June 30, 2026: Assets were $33.7 million higher than the September reporting date.

  2. September 30, 2026: Total assets stood at $9.89878 billion.

  3. October 23, 2026: The CFO announced the Q4 income forecast and asset management plan.

  4. Q4 2026: The bank projects net interest income between $103 million and $105 million.

  5. 2027: The bank expects to exceed the $10 billion asset threshold.

Market Landscape

Byline Bancorp's strategy mirrors the common industry response to the Durbin Amendment, where firms calibrate growth to defer regulatory compliance. This positioning helps the bank maintain operational flexibility against larger competitors until the 2028 threshold impact arrives.

Customers are unlikely to see immediate changes to their retail banking fees or services while the bank remains under the current regulatory threshold. The firm aims to sustain its performance levels, projecting stable income through the end of 2026.

The takeaway

Banks often treat regulatory thresholds as strategic milestones, timing acquisitions and investments to maximize efficiency before new compliance rules take effect. Investors should monitor how these institutions handle the transition to increased regulatory oversight once growth inevitably pushes them over such limits.

What happens next

Byline Bancorp expects to close the Illinois State Bancorp acquisition during the first three months of 2027.

Further reading

For more information on the local sector, visit the Financial Services industry page.

Source note: This article includes information reported by TokenPost.

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