National Australia Bank (ASX:NAB) total capital and Common Equity Tier 1 (CET1) capital both increased year-over-year in the June quarter, according to a Monday Australian bourse filing.

The bank's total capital in the three months to June 30 came in at AU$94.18 billion, up from the AU$89.74 billion it reported in the year-ago period. Its CET1 capital for the period clocked in at AU$54.02 billion, rising from the AU$53.04 billion it reported for the June 2025 quarter.

Its Level 1 Group CET1 ratio for the June quarter was 11.89%, compared with a ratio of 11.97% in the prior-year period. It reported a liquidity coverage ratio of 134% for the quarter, compared with 135% in the same period in the previous year.