International Bancshares Corp (IBOC) Tax Rate (2009 - 2026)
International Bancshares (IBOC) posted Tax Rate of 20.89% for Q2 2026, up 0.39 percentage points from 20.50% a year earlier but down 0.13 percentage points from the prior quarter.
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Analysis
International Bancshares Corp (IBOC) Tax Rate (2009 - 2026) Analysis & Trends
For the trailing twelve months through Jun 30, 2026, Tax Rate at International Bancshares was 21.10%, up 2.23 percentage points year-over-year; for FY2025, it was 20.77%, up 1.20 percentage points from FY2024.
- Annual Tax Rate shows a five-year change of -0.22 percentage points (FY2020 to FY2025).
- In prior years, International Bancshares' Tax Rate was 19.57% in FY2024 (-1.78 pp), 21.35% in FY2023 (-0.19 pp), 21.54% in FY2022 (+0.31 pp) and 21.22% in FY2021 (+0.24 pp).
- Quarterly Tax Rate has run from a low of 13.89% in Q4 2024 to a high of 22.34% in Q2 2024 over five years.
- On a year-over-year basis, Tax Rate has increased in each of the last three quarters, with an average year-over-year change of -0.23 percentage points over the last eight quarters.
- The strongest year-over-year quarter for Tax Rate in the past five years was Q4 2025, with a gain of 7.97 percentage points; the weakest was Q4 2024, with a drop of 7.74 percentage points.
- According to Business Quant data, Tax Rate for the three prior quarters was 21.02% (Q1 2026), 21.86% (Q4 2025) and 20.60% (Q3 2025).
Peer Set
Peer Comparison
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 20.89% |
| Mar 31, 2026 | 21.02% |
| Dec 31, 2025 | 21.86% |
| Sep 30, 2025 | 20.60% |
| Jun 30, 2025 | 20.50% |
| Mar 31, 2025 | 20.00% |
| Dec 31, 2024 | 13.89% |
| Sep 30, 2024 | 21.42% |
| Jun 30, 2024 | 22.34% |
| Mar 31, 2024 | 21.02% |
| Dec 31, 2023 | 21.63% |
| Sep 30, 2023 | 21.19% |
| Jun 30, 2023 | 21.38% |
| Mar 31, 2023 | 21.16% |
| Dec 31, 2022 | 21.86% |
| Sep 30, 2022 | 21.45% |
| Jun 30, 2022 | 21.29% |
| Mar 31, 2022 | 21.29% |
| Dec 31, 2021 | 20.55% |
| Sep 30, 2021 | 21.09% |
API Access
International Bancshares Corp Tax Rate API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=tax-rate&ticker=IBOC&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "IBOC", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=tax-rate&ticker=IBOC&period=max&api_key=YOUR_API_KEY");
const data = await res.json();