Short answer: there’s no single, fixed winner — savings account interest rates vary by bank and by product (regular savings vs. special/online/priority savings), and they change often. As of recent public rate pages and comparisons (September 2025), advertised ordinary savings rates at major banks are typically in the low single digits (around 2–6%), while some banks or financial firms advertise higher promotional rates (e.g., Seylan and a few others showing savings/linked products up to about 6–6.25%). (sl.statebank)

What I recommend

• If you want the single current highest savings-rate offer, I can check live rates across the major banks and return the top 3 accounts (I’ll look at Commercial Bank, HNB, Sampath, Seylan, NDB, DFCC, Bank of Ceylon, People’s Bank, Standard Chartered, SBI and any popular online/special saver products). Tell me if you want LKR only or include foreign-currency/NRFC accounts.
• If you prefer to search yourself, compare each bank’s “Interest Rates” page or a reliable local comparison site (rates change frequently and banks post updates on their websites).

Would you like me to run a fresh comparison now and list the top current offers (I’ll cite each bank’s rate page)?