Blog · Essay
What fair means when you split the chores
Splitting chores fairly is not splitting them evenly. An even split ignores that jobs differ in length, frequency and dread, and that the people doing them differ in schedule and skill. Divide household chores fairly by agreeing what each job costs first, then balancing the cost rather than the count.

Every chore split starts the same way: a list, two names, alternate lines. It holds for about three weeks. Then one of you is travelling, or the bins go out on a night somebody now works late, and the schedule quietly reverts to whoever minds the mess first.
The fifty-fifty version fails because it is measuring the wrong thing. Two columns of equal length can hide a wildly uneven week.
Not every job costs the same
Emptying the dishwasher takes four minutes and no thought. Doing the weekly food shop takes ninety minutes, a decision about every item, and a car. Both are one line on a chart.
Three things make a job expensive, and none of them show up in a count. Duration is the obvious one. Frequency is worse: a ten-minute job that recurs daily outweighs an hour-long job that recurs quarterly, and daily jobs are the ones that wear people down. The third is dread, which people are embarrassed to name and should name anyway. If one of you will do anything to avoid phone calls and the other genuinely does not mind them, that is not a character flaw to be corrected. It is information about how to divide the work.
Cost, then balance
Before you assign anything, go through the list once and put a rough cost against each job. Minutes, times per month, and a note where somebody feels strongly. You are not building a spreadsheet. You are getting both of you to look at the same numbers, because most housework arguments turn out to be two people using different units.
Then balance on cost. Fair might mean one person owns four jobs and the other owns eleven. That is a good outcome if the four are the heavy recurring ones. The test is not whether the columns match, it is whether both people would willingly swap columns.
Give every job an owner
An unowned job is a job that gets done late and resented twice: once by the person who eventually does it, and once by the person who gets told about it. "We should really sort the garage" belongs to nobody, so it stays on the wall for a year.
Sivella puts a name on each task for exactly this reason, and keeps fair division in view while the work is being split rather than as a report afterwards. Owning a job does not mean doing it alone. It means being the person who notices it is due and decides what happens.
Expect to renegotiate
A split is a snapshot of one particular month. Somebody changes jobs, somebody gets sick, a season arrives with its own chores. A division that cannot be renegotiated turns into a grievance, because the only way to change it is to fail at it loudly enough that someone else steps in.
Put a date on it. Twenty minutes every few months, with the list in front of you: what is landing badly, what has changed, what should move. Sivella's energy check-ins feed the same conversation from the other direction, showing when somebody has been running at low capacity for a fortnight while their column stayed the same length.
The goal is not a permanent settlement. It is a split both of you would still agree to if you swapped names today.