Japan’s return to positive rates is supporting major banks’ ability to generate more sustainable earnings from domestic banking activities, according to Fitch Ratings.
The positive rates remove banks’ long-standing constraint on profitability and internal capital generation, the credit rating company said in a September 2026 commentary.
Fitch expects this benefit to outweigh higher bond valuation losses, rising deposit costs and gradually higher borrower debt-servicing burdens over the next one to two years.
Asset Yields Outpace Funding Costs
Lenders are reallocating liquid assets into higher-yielding domestic instruments as negative interest rate policies recede. Rising income from domestic loans and newly purchased government bonds provides immediate relief to net interest margins, counteracting the initial portfolio write-downs caused by falling bond prices.
Deposit costs are edging higher across commercial networks, but the pace of increase remains disciplined. Major lenders retain large pools of low-cost retail deposits that adjust more slowly than wholesale market funding, preserving a profitable spread on new corporate loans.
“We expect this benefit to outweigh higher bond valuation losses, rising deposit costs and gradually higher borrower debt-servicing burdens over the next one to two years,” Fitch said.
Corporate Balance Sheets and Debt Burdens
Borrower balance sheets entering this cycle look stronger than in previous tightening eras. Japanese corporations spent years reducing use, leaving balance sheets insulated against gradual rate increases and enabling them to fund working capital from domestic cash flow.
Household finances show similar resilience despite the initial repricing of floating-rate home loans. Large household savings balances, combined with real wage increases across major metropolitan employers, prevent an immediate spike in non-performing retail loans.
Credit costs at the largest financial groups will remain contained, though vulnerability is concentrated in specific corners of the market. Small domestic enterprises operating on tight margins face cash flow pressure, while regional lenders with heavy exposure to real estate and floating mortgages face higher delinquency risks than the national megabanks.
Shifting Away From Negative Rates
The transition marks the end of an era where Japanese lenders sought returns overseas to offset stagnant margins at home. For years, domestic institutions deployed capital into foreign syndicated debt and offshore commercial property to sustain profitability, absorbing currency hedging costs that frequently eroded net yields.
Domestic lending has now reclaimed its role as the primary driver of core banking profits. Higher base rates give institutions the headroom to price credit based on borrower risk rather than competing in a race to zero, reshaping commercial lending across Tokyo, Osaka and regional manufacturing hubs.
Attention now shifts to the credit performance of used small businesses as quarterly repayments reset, alongside plans by Japanese megabanks to roll out joint digital-currency transaction platforms by March 2027.
