
Buying a Treasury bill: how a discount becomes a return
Understand how a Treasury bill earns a return, calculate a simple holding-period gain, and separate a maturity payment from an annualised yield.

Understand how a Treasury bill earns a return, calculate a simple holding-period gain, and separate a maturity payment from an annualised yield.

Understand what a Premium Bonds prize-fund rate measures, why individual returns vary, and how to compare it with interest-paying savings.

Compare an annual insurance price with its instalment total, and find out whether monthly payments include interest, fees or a separate credit agreement.

Check the date and payment instructions on a loan payoff quote before treating the account balance as the amount needed to close the debt.

Compare the fee, interest start date and repayment rules before using a credit card to withdraw cash.

Before sharing a bank account, agree what it pays for, when contributions arrive and how both people can follow the money.