Balance on transactions sheet

[kyle.sullivan.me]

Hi all,
Also looked into this and created an array formula that can be entered into the header row on the transactions sheet. No sorting required, no pull-down of formulas after new transactions are filled.

={"Running Balance";
LET(
datesAll,B2:B,
amtsAll,M2:M,
acctsAll,T2:T,
MAP(acctsAll,datesAll,LAMBDA(acctRow,dateRow,SUMIFS(amtsAll,acctsAll,acctRow,datesAll,"<="&dateRow)))
)}