How have Commonwealth Bank of Australia's (CBA) net interest income, margins and earnings per share trended over time?
Commonwealth Bank of Australia's net interest income has grown steadily across the reported years, from $16.9B in FY2016 to $24.0B in FY2025, with the largest jump between FY2022's $19.5B and FY2023's $23.1B. Non-interest income has moved in the opposite direction, falling from $7.6B in FY2016 to $4.3B in FY2025, after peaking at $11.7B in FY2017. Net interest income has therefore become an increasingly large share of the bank's combined income over the decade of results.
Net interest margin has fluctuated in a narrow range across the period, from a low of 1.9% in FY2022 to a high of 2.2% in FY2018, and stood at 2.1% in FY2025. Provisions for loan losses, which reduce reported earnings, ranged from $357M in FY2022 to $2.5B in FY2020, and were $726M in FY2025, pointing to year-to-year variability in credit costs rather than a steady trend.
Diluted earnings per share rose from $5.29 in FY2016 to $6.04 in FY2025, the highest level across the ten years of reported figures, although the path was uneven: EPS dropped to $4.69 in FY2019 before climbing back above $6.00 in FY2022 and again in FY2025. Over the same period the number of basic shares outstanding edged down from 1.69 billion in FY2016 to 1.67 billion in FY2025, after peaking near 1.77 billion in FY2020 and FY2021.
Updated 6 Jul 2026