Grammar fix
go halves
split a cost equally
To split the cost of something equally between two people.
expressionB1common
Hear it in context
Notice where the phrase sounds natural.
Shall we just go halves on the meal?
A: How do you want to do the bill?
B: Let's go halves — easier that way.
Fix the pattern
One small grammar move makes it sound right.
Not: Let's go half on the bill.
Say: Let's go halves on the bill.
It's the fixed plural 'go halves', not 'go half'.