Find evening jobs with different latest finish times
Sketch one late-shift evening from the point of view of the person at home. They might need to collect a child, serve dinner and be present throughout bedtime. The other person cannot cover any of those at eight if they finish at ten. They may be able to prepare tomorrow’s bags before work or restore the kitchen after returning. Choose work with a finish time they can reliably meet.
Recheck the split after a real shift
Try the split for a few evenings and compare the actual burden. If the late shift regularly ends after everyone is asleep, choose a morning responsibility instead. A plan that only works on an unusually early night will soon leave the same person doing both jobs.
Account for the jobs that straddle both schedules
If one adult starts a load of laundry and the late worker will finish it, ask whether its timing actually suits both. A load finishing long before the worker returns may leave the first person with the whole job after all. Compare what happened across several evenings. Agree a different exchange if the late worker’s tasks repeatedly return to the person at home. Fairness can be evaluated over the week rather than at every dinner.