Handling reimbursements with partner
For context my partner and I do not have any shared financial accounts and he is currently in graduate school. I put all of our shared expenses on my credit card and he will typically Venmo me back for them. So for example, I pay $140 for the wifi and $160 for the electric bill, but half of that is his and he will eventually Venmo me for it. Another example is I have a $600 grocery budget, but that’s obviously higher than it would be for just myself bc it’s for 2 people.
My problem is I don’t know how to set up my budget around these shared categories because him paying me back is inconsistent. It’s not like I spend $600 on groceries and he pays me back for $300 every time. It’s super random when he’s able to contribute. I figured that on average he pays me back about $400 monthly for things total. So I have my budget categories set as the full amount (2x what I myself owe) and then an income category called Bob’s Venmos with $400.
Now I’m realizing it’s not really $400 of income bc I’m being paid back, but if I budget 2x for those shared categories then does it all even out?
Someone help this make sense in my small brain thank you
TLDR; I put everything on my credit card and partner pays me back but in large random chunks and sporadically, how do I correctly reflect this in my budget.