Going deeper·6 min read

T-bill risks and considerations

T-bills are low credit risk, but 'low risk' is not 'no considerations'. The trade-offs worth understanding before you commit.

T-bill risks and considerations

Key points

  • Credit risk is very low, but other risks still apply.
  • Reinvestment risk: the next auction's yield may be lower.
  • Opportunity cost matters most for CPF-funded purchases.
  • Allotment can be partial in popular auctions.

Low credit risk, but not risk-free in every sense

The credit risk of a Singapore T-bill is very low because it is government-backed. But 'safe' from default is not the same as 'no considerations' — a few other factors deserve thought.

Interest-rate and reinvestment risk

If you sell a T-bill before maturity, its market price moves inversely with interest rates, so you might get back less than you paid. Holding to maturity avoids this.

Reinvestment risk is the more common one: when your T-bill matures and you want to roll into a new one, the prevailing yield may be lower than before. The rate you enjoyed is not guaranteed to repeat.

Opportunity cost and liquidity

For CPF-funded purchases especially, weigh the T-bill yield against the CPF interest you give up, including any months where funds earn nothing in transit.

Your money is committed for the term. If there is a real chance you will need it sooner, an instrument you can exit any month (such as SSB) may suit better.

Allotment and this is not advice

In popular auctions, non-competitive bids can be pro-rated, so you may be allotted less than you applied for.

Finally, everything on this site is general educational information, not financial advice, and we are not affiliated with MAS, CPF or any bank. Consider your own circumstances and, if in doubt, speak to a licensed financial adviser before investing.

Check the latest at the source

Yields, calendars and rules change. Confirm current details on the official Monetary Authority of Singapore (MAS) website before you act.

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This guide is general educational information, not financial advice. T-Bills Singapore is independent and not affiliated with MAS, the CPF Board or any bank. Consider your own circumstances and, if in doubt, speak to a licensed financial adviser.