TER Is the Starting Line
The Total Expense Ratio is the annual operating cost shown in an ETF's factsheet. It is deducted inside the fund, so the price you see already reflects it. You do not usually receive a separate bill.
TER matters, but it is not a performance promise. A fund with a lower TER can still deliver a worse result than a competitor if it tracks its index less effectively or faces higher trading and tax friction.
Tracking Difference Is the Result
Tracking difference is the gap between the fund's actual performance and its benchmark over a chosen period. TER is one reason for the gap; it is not the only one.
Other contributors include:
- portfolio transaction costs and rebalancing;
- withholding taxes on dividends;
- sampling or optimisation instead of holding every security;
- securities-lending income that can offset costs;
- cash drag and fund operating expenses;
- index timing and the exact performance measurement convention.
The useful question is not “which fund has the lowest TER?” It is “which fund has tracked its stated index efficiently after the costs that matter to me?”
Three Funds, Three Different Comparisons
Consider three global-equity choices:
- An Irish-domiciled accumulating UCITS ETF may offer a different withholding-tax result from a US-domiciled ETF for a Singapore investor.
ISACandVWRAboth provide broad global equity but track different index families and may have different country weights and tracking results.- Two share classes of the same fund may trade in different currencies; the listing currency does not change the underlying portfolio or eliminate the investor's currency exposure.
The ticker is only the front label. Read the ISIN, domicile, index, accumulation or distribution policy, TER and factsheet performance table.
The Costs Outside the Fund
Your actual cost also includes the platform's order fee, FX conversion, bid-ask spread and any custody or account charge. A low-TER ETF bought through an expensive FX conversion can be more costly than a slightly higher-TER ETF bought efficiently.
For a Singapore investor, compare the full path from SGD to the final fund: conversion, purchase, annual fund costs, dividends or accumulation, tax and eventual sale.
The Takeaway
TER is useful because it is visible and controllable. Tracking difference is useful because it shows what the fund actually delivered relative to its benchmark. Use both, then add the platform, FX and tax costs that the factsheet cannot show.
General education, not financial advice. TERs, holdings, tax treatment and tracking results change; check current fund documents.