KOPPERS HOLDINGS INC. Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent
KOPPERS HOLDINGS INC. (KOP) reported Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent of 0.50% for the 12-month period ending 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Expense Statement › Income Tax
us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther · last filed 2026-02-26
- KOPPERS HOLDINGS INC. effective income tax rate reconciliation, nondeductible expense, other, percent for fiscal 2025 was 0.50%, a 44.44% decline from fiscal 2024.
- KOPPERS HOLDINGS INC. effective income tax rate reconciliation, nondeductible expense, other, percent for fiscal 2024 was 0.90%, a 80.00% increase from fiscal 2023.
- KOPPERS HOLDINGS INC. effective income tax rate reconciliation, nondeductible expense, other, percent for fiscal 2023 was 0.50%.
| Period end | Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent 12 month |
|---|---|
| 2025-12-31 | 0.50% 10-K · filed 2026-02-26 |
| 2024-12-31 | 0.90% 10-K · filed 2026-02-26 |
| 2023-12-31 | 0.50% 10-K · filed 2026-02-26 |
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