For 'Spend', 'Invest', 'Insure' and 'Mortgage' missions, bonus interest rates earned in the current month will apply to your account balance in the next calendar month (interest will be computed on your average daily balance in the next calendar month), and credited to your Citi Interest Booster Account in the following month. Click here for the full Terms and Conditions. For 'Save' mission, if you increased your average daily balance from December to January by $1,500, the bonus interest will be computed on this incremental average daily balance, and credited to your Citi Interest Booster Account in March.For 'Birthday' month bonus, if your birthday is in January, the 0.10% bonus interest will be computed on your average daily balance in your birthday month, and credited to your Citi Interest Booster Account in February.