How my poly family organises our finances (aka. means-assessed money management for multi-adult households).

This self-post was originally posted to /r/polyamory. See more things from Dan's Reddit account.

Hi /r/polyamory. After much pestering by people who know us, I finally got around to writing about how my polycule and I organise our finances, and I thought that you might be interested to. The whole thing’s described behind that link, but I didn’t want to be seen to be gathering karma or self-promoting, so I thought I’d make a text post to briefly explain it:

Us: My partner, her husband and I are three adults sharing a home (plus, this year, their baby girl!). We rented together for several years, and now we’ve got our first mortgage together. We wanted to come up with a fair way to share our costs (rent/mortgage, bills, shopping, etc.) that wasn’t just “split it three ways”, which didn’t seem fair given that we all earn different amounts – variable even from month to month as my income fluctuates depending on how many days I spend looking after the baby and what kind of freelance work I get, and as my partner gradually returns to work (part-time for now) after her recent maternity leave.

Our system: We use a system of 100% means-assessment based on gross income. So in other words, if Alice, Bob and Chris live together, and Alice earns twice as much as Bob, then she’d be expected to pay twice as much towards their collective household costs, too. And somebody who didn’t earn anything wouldn’t be expected to contribute anything. We didn’t always use 100%: early on, we used 75% – in other words, a quarter of our costs would be simply “split three ways”, and three-quarters of our costs would be split in accordance with means-assessment. Make sense?

It’s really easy: The good news is, it’s really easy to do. I’ve made a spreadsheet on Google Docs that’s a simplified version of our sheet, and you’re welcome to take a copy and use it yourself. Just put in everybody’s salary and what percentage “means assessment” you want to use (0% means ‘simply split X ways’; 100% means ‘split completely according to means’; anything in-between is a balance of the two). Then put in each cost and who paid it (Eve paid the rent, Alice paid for this week’s shopping, Bob paid for last week’s shopping, etc.) and it’ll tell you who owes money to whom in order to square everything up again.

It’s universal: You don’t even have to be a polyfamily to make use of this, I reckon. It works with as little as two people, and it’d work with any household of multiple adults, if you wanted it to. It provides a simple, fair, and slightly-socialist way of splitting up the living costs of a group of people who live together and trust one another.

Let me know what you think!

tl;dr: My polycule and I use a use a spreadsheet to divide up our monthly costs in accordance with our relative incomes, which then tells us who owes money to whom at the end of each month.


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