International Bancshares (IBOC) Tax Rate (2009 - 2025)

International Bancshares' Tax Rate history runs 17 years deep, the most recent figure standing at 11.58% for Q4 2025.

• In Q4 2025, Tax Rate fell 231.0% year-over-year to 11.58%; the TTM figure through Dec 2025 stood at 18.06% (down 150.0% YoY), while the FY2025 annual figure was 18.06%, down 150.0% from the prior year.
• Tax Rate was 11.58% for Q4 2025 at International Bancshares, down from 20.6% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 22.34% in Q2 2024 to a low of 4.72% in Q4 2023.
• Historically, Tax Rate has averaged 19.1% across 5 years, with a median of 21.05% in 2021.
• The sharpest annual moves came in 2023 and 2024: Tax Rate tumbled 927 bps in 2023, then jumped 917 bps in 2024.
• A 5-year view of Tax Rate shows it stood at 20.55% in 2021, then sank by 32 bps to 13.99% in 2022, then plunged by 66 bps to 4.72% in 2023, then surged by 194 bps to 13.89% in 2024, then dropped by 17 bps to 11.58% in 2025.
• The last three Tax Rate figures came in at 11.58% (Q4 2025), 20.6% (Q3 2025), and 20.5% (Q2 2025), per Business Quant data.