Margin & Payout Tracker

01 The problem

Paying a small team ran on a spreadsheet. Rates, overtime, and bonuses got worked out by hand. The margin came after the fact, if anyone got to it at all, and the payout was a trust-me number. It was fragile. One dragged formula or a rounding slip moved real money, and nobody caught it until later. There was no clean record of what got paid, and no proof the transfer ever went out.

02 The system

A calculator turns approved hours into pay and period contribution margin. You enter each person’s hours, and the app computes regular pay, overtime, and role-gated bonuses in integer cents. It subtracts tracked pay and direct expenses from the client invoice and shows the remaining contribution margin plus its split. A recorded payout can carry a screenshot of the transfer, and a branded payslip can be generated as a PDF for delivery.

03 How it holds up

A brute-force test covers the supported ways to split a full month of hours and confirms each path adds back to the monthly salary in cents. The engine carries 33 tests, and the pay math follows the integer-cents pattern used for money in code. Transfer screenshots use an authenticated proxy rather than a public asset path. Payslip delivery retries supported network failures. The product installs like an app and runs from one screen.

04 The result

The tracker gives the operator cents-based pay calculations, period contribution margin, payout records, and payslip generation in one screen. Transfer evidence can stay attached to the recorded payment. A companion build, a cost-plus rate calculator, quotes the job offline before hours are logged.

05 Frequently asked questions

What does a margin and payout tracker do?

It turns approved hours into cents-based pay and contribution margin. The app computes regular pay, overtime, and role-gated bonuses, then subtracts tracked pay and direct expenses from the client invoice. This is contribution margin, not full accounting profit unless every operating cost is included.

How do you prove payroll math is correct?

With a brute-force test. It runs every way to split a full month of hours and confirms each split adds back to the exact monthly salary, to the cent. The money engine carries 33 tests in all, so a change that breaks the math gets caught before it ships.

How do you keep proof of team payouts?

A recorded payout can carry a screenshot of the transfer as evidence. The file is served through an authenticated proxy rather than a public asset path. The attachment supports review, while final payment confirmation still depends on the payment provider’s record.

Can a small team replace a payroll spreadsheet with an app?

Yes. This one installs like an app, runs from one screen, and replaces the copied spreadsheet formulas for rates, overtime, and bonuses. Cents-based calculations and fixed input fields remove the dragged-cell failure path, while approvals still remain with the operator.