Track monthly average balance from your UOB export — saved locally in your browser, with support for multiple accounts.
This calculator reads the XLS file downloaded from UOB Internet Banking (desktop: open the account, use the download control for the current month).
For newly opened accounts, results are most reliable when the account opened on the 1st of the month.
When the 1st falls on a Sunday or public holiday, balances may need manual correction for that day — use the pencil icon on a row, or compare with the first row of the prior month in UOB.
Transfers after ~10:45pm Mon–Sat (non-holiday) may post on the next working day; the bank file governs what you see here.