CET1 ratio: what it means and how to read it
What is CET1 ratio?
Common equity tier 1: the lender's purest capital, its share capital and retained profits, as a share of risk-weighted assets.
Total capital includes instruments such as subordinated bonds, which absorb losses only when a bank is already failing. Common equity absorbs them from the first rupee, while the bank is still running. The Basel III rules adopted by RBI therefore set a separate, stricter minimum for it.
Because it is built from profits and share sales, CET1 shows whether a bank funds its own growth. A bank whose CET1 falls year after year while it grows is heading for a share sale that will dilute existing holders.
How it is calculated
A worked example
Why does CET1 ratio matter?
It is the first cushion to take losses and the hardest to replace, so it is the capital figure investors and regulators trust most.
What is a good CET1 ratio?
Banks need at least 8% including the buffer. Above 12% is comfortable, and the strongest banks run 14% or more.
RBI's minimum is 5.5% plus the 2.5% conservation buffer. In practice banks aim well above: 12% and higher gives room to grow and to absorb a bad year without going to the market.
Reading scale
What are the common mistakes with CET1 ratio?
What is a typical CET1 ratio in India today?
The median across the 41 listed companies that report it, as of 13 Oct 2026. Half sit above each figure and half below.