How I price a fractional engagement
Retainer for the ongoing relationship, scoped fees for bounded projects. The thing that lets me charge well is the system behind me.
The default is a retainer
For ongoing fractional work, a monthly retainer is the right shape: a fixed fee for a defined scope and standing access. It is predictable for the client and for me, and it stops pricing from being a function of my calendar.
When I scope instead
Bounded work with a clear outcome gets a fixed project fee. It is cleaner than stretching a retainer to cover a one-time build, and it lets the client say yes to a specific result.
What justifies the number
I can charge for outcomes only because I can deliver them reliably, and reliability comes from the system, not from heroics. An operator who onboards in a day, runs delivery from one source of truth, and reports cleanly is selling a different product than one who is visibly held together by spreadsheets. The operation behind me is part of the price.