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Basma Taha

Shows balance read time since Jan 2020 and how it evolved over time. It increased whilst Monzo’s user base increased over time.
Technology
28 April 2023

Speeding up our balance read time: The planning phase

The ledger is where we keep track of all customer money movements coming in and out of customers’ accounts. We started a project to speed up the ledger balance read time. In this post we’ll cover the planning and experiments we ran.

Ever wondered how Monzo calculates balances (the amount of money) within accounts and pots? We calculate plenty of balances beyond the main one you see in the app and this makes things more complicated than it seems.
Technology
18 February 2022

How we calculate balances

In June 2021 we started designing and implementing a new way to calculate balances that is more reliable and consistent. This post explains why the old approach needed improving and the changes we made.

Existing customers can get help via the app

Monzo Bank Limited is a company registered in England and Wales (No.09446231). Monzo Bank Limited is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. Our financial Services Register number is 730427. Our address is Broadwalk House, 5 Appold St, London EC2A 2AG.