Hustlay
Free tool

Shared Expense Split Calculator

How do your shared costs actually allocate?

This shared expense split calculator allocates one bill — a VPS, an Adobe plan, a co-working pass — across your projects by percentage and shows each project's real margin. Most bookkeeping tools force you to pick one project.

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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

Key takeaways

  • Overhead allocation means giving every project its fair share of costs that serve more than one project.
  • Split by percentage of use: a $20 server used 50/30/20 by three projects costs them $10, $6 and $4.
  • Without a split, one project carries the whole bill and looks worse than it is, while the others look better.
  • Set the split once for recurring bills (hosting, software, phone) and every month stays accurate.

Hustlay splits every recurring shared bill automatically, so each project's P&L stays honest month after month.

Split costs automatically
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.
14-day trial · no credit card

Want this live for every transaction?

Hustlay handles split allocations automatically — including recurring charges. On the Pro tier.

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