I&M Bank Tanzania's profit jump masks a risky solo lending bet

I&M Bank Tanzania's 32% profit surge is a story of local aggression against group-wide retreat. The lender's 2025 results, driven by net interest income growth, land as its Nairobi-based parent, I&M Group, contracts its overall loan book by 7.8% according to Finance in Africa. This divergence signals a gamble. While the group reins in risk, its Tanzanian subsidiary pedals hard into a more competitive market dominated by CRDB and NMB. For investors, this tests underwriting discipline in an unfamiliar sprint.

The context of a cautious group

I&M Group's consolidated profit rose 22% to $119 million for 2025. That growth arrived alongside a shrinking loan portfolio. The group's 7.8% loan book contraction per Finance in Africa suggests a strategic pivot toward de-risking. In Rwanda, another subsidiary, I&M Bank Rwanda, posted only a 2.1% loan book increase by March 2026 as noted by Business Daily Africa. Tanzania is the clear outlier. This isolated growth spurt raises immediate questions. Is the bank chasing market share by relaxing credit standards, or has it found a niche the group's other units missed? The lack of parallel growth elsewhere makes Tanzania's boom look opportunistic.

Tanzania's crowded banking field

The play for loan volume is tough. CRDB Bank and NMB Bank control a dominant share of assets and distribution. For a smaller player like I&M Bank Tanzania, aggressive lending often means thinner margins or higher-risk customer segments. The Dar es Salaam Stock Exchange (DSE), where the bank could seek capital, is a modest pool. Weekly turnover can be as low as TZS 3.57 billion based on TanzaniaInvest data. That liquidity constraint makes it harder to fund prolonged expansion without leaning on the parent. The real risk is asset quality decay. A post-COVID credit surge across East Africa now faces rising defaults as global rates bite. If I&M Tanzania's book sours, the parent's capital buffers will be tested.

Investors should watch two signals. First, the bank's non-performing loan ratio in its next disclosure will show if this growth is solid. Second, any shift in funding from I&M Group to the Tanzanian unit would confirm this is a capital-intensive push. The quiet beneficiaries are Tanzania's SMEs, who get more loan options. The losers could be shareholders if the group is forced to write down its Tanzanian bet. Expect I&M Group to start touting its Tanzanian 'success story' in investor briefings. Look past the headline profit. The real question is what happens when the lending music stops.