The Reserve Bank of India (RBI) recently released a new draft titled 'Directions on Interest Rates on Loans and Advances.' This move is meant to create a single, clear set of rules for how all lenders calculate interest. Currently, different types of banks and finance companies follow different rules. The RBI wants to bring everyone—from big commercial banks to small Non-Banking Financial Companies (NBFCs)—under one umbrella to ensure fairness and transparency in the lending market.

These new directions are proposed to start on April 1, 2027. Under these rules, every lender must have a formal 'Board-approved policy' for pricing loans. This policy must explain exactly how the bank decides the interest rate, including their 'internal benchmark' (the minimum interest rate the bank charges itself) and the 'spread' (the extra percentage added to the benchmark to cover risks and costs). The RBI is also making it clear that lenders cannot price a loan below their chosen benchmark.

The rules will apply to almost every lender in India. This includes Commercial Banks, Regional Rural Banks (RRBs), Urban Co-operative Banks (UCBs), Rural Co-operative Banks, and even Housing Finance Companies. For all existing loans already linked to old benchmarks, banks will have a deadline of April 1, 2029, to move them to this new system. Importantly, the RBI said that when a bank moves a customer to this new system, the new interest rate cannot be higher than what the customer was paying before. Also, banks are not allowed to charge any fee for this migration.

For bank officers, the way 'spread' is calculated is very important. The draft says the spread must be broken down into specific parts: Credit Risk Premium (the cost of the risk that the borrower might not pay back), Operating Cost (salaries and office expenses), Term Premium (cost for longer loan periods), and Business Strategy Premium. Banks must review this policy at least once every year to make sure it is still accurate.

Another big change involves how interest is calculated. The RBI wants interest to be charged on a 'daily reducing balance basis.' This means interest is calculated only on the remaining amount the customer owes each day, which is usually cheaper for the borrower. For most loans, interest will be charged at monthly intervals, but for farmers and agricultural loans, the intervals can be longer to match their harvest cycles. For small loans under Rs. 50,000 and microfinance loans, lenders must set a clear 'Annual Percentage Rate' (APR), which includes the interest plus all other fees, to make sure the costs are not 'usurious' (unfairly high).

Banks with deposits over Rs. 1,000 crore will have to publish their internal benchmarks on the first day of every month. This will be the rate for all new loans sanctioned during that month. The RBI has opened this draft for public comments until September 11, 2026. After looking at the feedback from bankers and the public, the final rules will be issued. Bankers should watch out for the final notification, as it will require a massive cleanup of old loan data and new software settings to match the 2027 and 2029 deadlines.