We can now cancel Bill Splits, which was a much needed feature. However, it’s not currently possible to cannot cancel a single Bill Split for a transaction (only all the Bill Splits sent for that transaction) and once a Bill Split is canceled you cannot send another Bill Split.
The ability to edit Bill Splits with the following features would be incredibly useful:
Cancel individual Bill Splits for transactions - the money for canceled Bill Splits would be reallocated to the splitter’s share in the UI.
Send an additional Bill Split request using the splitter’s allocation.
(eg: transaction worth £10 split as: splitter = £6, person A = £4. At a later time, splitter could split their £6 allocation with person B).
Change the value of Bill Splits which have been already sent - money used(/gained) from increasing(/decreasing) the value of a Bill Split would decrease(/increase) the splitter’s share.
Remember to vote if you want Monzo to build the ability to edit Bill Splits.