The total expense ratio (TER) refers to the annual, ongoing total costs of an ETF (e.g. for administration). The total TER costs are expressed as a percentage (e.g. 0.20% per year) and charged directly to the ETF assets.
This means that these costs are not debited directly from your account and are not debited as a separate fee, but have an indirect impact on the value and performance of the ETF. The TER details and other ETF key figures can be found in the relevant factsheet.
A higher TER percentage means higher running costs, but is not fundamentally bad. The important thing is what you get in return. Broad-based ETFs that reflect a large market often have lower costs. Specialized ETFs – e.g. focusing on specific topics or regions – can have higher costs because they have a more complex structure.