RBI's August rule: credit card finance charges can no longer include unpaid fees, penalties, and taxes
From August 2026, banks must exclude convenience fees, late-payment penalties, and taxes when calculating interest on your unpaid credit card balance — trimming the compounding effect for revolvers.
Credit card users who carry forward a balance get a small but real relief this month. As part of the Reserve Bank of India’s updated conduct rules for card issuers taking effect in August 2026, banks can no longer fold unpaid convenience fees, late-payment penalties, and applicable taxes (including GST) into the base on which finance charges (interest) are calculated.
What was happening before
Many issuers were computing monthly finance charges — typically in the 2.5%–4% per month range, working out to roughly 30–48% annualised — on an outstanding balance that already included previous unpaid fees, penalties, and GST on those charges. That meant cardholders were effectively paying interest on interest: a penalty or convenience fee left unpaid one month would itself start attracting finance charges the next month, compounding the cost of carrying a balance.
What changes now
| Before | Now | |
|---|---|---|
| Finance charge base | Principal spend + unpaid fees, penalties, taxes | Principal spend only |
| Effect on revolvers | Compounding — fees/taxes attract further interest | Fees/taxes stay flat until paid, no added interest on them |
The RBI’s move builds on its earlier 2024 tightening, when it capped late-payment fees on a slab basis (roughly ₹100 to ₹1,300, depending on the outstanding amount) and clarified that late fees and related charges must apply only to the amount actually overdue — not the full outstanding balance.
What this means for you
- If you routinely revolve a credit card balance, your effective interest cost should now be marginally lower, since penalties and taxes no longer snowball into extra interest.
- It does not reduce the finance charge rate itself — cards still charge 2.5–4% a month on unpaid principal, among the costliest retail credit in India.
- The safest strategy remains unchanged: pay your full statement balance by the due date. Even with this fix, carrying a balance on a credit card is far more expensive than most personal loans or overdrafts.
Sources: BusinessToday — August 2026 and your finances: ITR deadline, CKYC 2.0, RBI policy, and other key changes, RBI — Master Direction, Credit Card and Debit Card – Issuance and Conduct
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