Expense ratio is recurring
The published expense ratio covers fund management and operating costs within regulatory limits. It is reflected in the NAV, but investors should still compare it because recurring charges reduce the return retained by the portfolio.
Regular, direct and total cost
Direct plans generally have lower recurring expense than otherwise identical regular plans because distributor commission is not included. Low expense is useful, but fund objective, mandate, risk, tax and benchmark fit still matter.
Look beyond a single number
Compare the fund against its stated benchmark, examine tracking difference where relevant, and distinguish active funds from index funds. A cheap unsuitable holding is not a good investment choice.
Use costs as one decision filter
Expense ratio alone should not drive every switch, but an investor comparing similar long-term exposure should understand the difference a recurring fee can make over decades.
Model it with your own numbers
Use the calculator before changing payments, transferring debt or relying on a projection.