The reality
Shared monthly costs
Hetzner VPS$20.00
GitHub Pro$21.00
Cursor$20.00
Total to split$61.00
Your allocation — drag to change
50% · $30.50
30% · $18.30
20% · $12.20
Balanced100% / 100%
Live per-project margin
Side SaaS82% margin
Income
$
Own expenses
$
+ $30.50 shared
Profit
$690
Client A site98% margin
Income
$
Own expenses
$
+ $18.30 shared
Profit
$2342
Portfolio blog88% margin
Income
$
Own expenses
$
+ $12.20 shared
Profit
$158
Why this matters
The number you look at is a lie
If your $20 VPS bill shows up under only one project, that project's margin looks bad and the others look inflated. You make decisions on wrong numbers — dropping a profitable project because shared-infra attribution is off, or scaling an unprofitable one because it looked fine.
Without splits
One transaction → one project. The rest of your projects look more profitable than they are.
With splits
One transaction → weighted across N projects. Each P&L is honest.
Recurring + splits
Your hosting bill recurs monthly AND splits. One setup, clean numbers forever.