See your real profit
on every single job.
Log materials, parts, and subcontractor costs directly against a job. CashWrench calculates your actual profit the moment you hit save — not at month end, not at tax time. Right now, on that job.
✓ 2 months free · No credit card · ✓ Cancel anytime
The Profit & Loss screen in CashWrench — updates the moment a job expense is saved.
Without CashWrench
You charged $265. You spent something on materials — was it $60? $80? You'll check the receipt later. Except later never comes, and by the end of the month you have total revenue with no idea which jobs were profitable and which quietly weren't.
So you price the next job the same way you priced the last one — on instinct. Some jobs you make good money. Others you don't. You can't tell which is which until it's too late to do anything about it.
With CashWrench
You finish the job. Before you leave the driveway, you tap Add Job Expense, enter the $75 materials cost, link it to the job. CashWrench shows you instantly: charged $265, expenses $75, profit $190 — a 71.7% margin.
Over time you see which job types are genuinely profitable, which customers cost more than they look, and exactly what you need to charge to protect your rate on the next similar job.
A job expense is anything you spent because of that specific job. If you wouldn't have spent the money without that customer's job, it's a job expense.
Materials
Copper pipes, PVC fittings, electrical wire, drywall — anything purchased specifically for this customer's project.
Parts
A replacement water heater, new faucet, circuit breaker, filter — items installed for this specific customer.
Subcontractors
You paid another tradesperson to help on this specific job. That fee belongs to this job's cost, not your general overhead.
Other Job Costs
Permits pulled for this project, specialist equipment rented for this job, or anything else tied directly to this customer.
Everything you need to track job costs and see real margin. Built for contractors who want clear numbers — not another spreadsheet to maintain at the end of the week.
Profit Updates Instantly
The moment you save a job expense, CashWrench recalculates what you made. Charged amount, total expenses, net profit — all updated in real time.
Linked to the Job
Every expense is tied to a specific customer and job. When you open that job, you see exactly what it cost and what it made — in one place.
Simple Categories
Materials, Tools, Subcontractor, Other. Enough to organise your records without 40 options to scroll through. Fast to log, easy to review.
Log Any Time
Forgot to log an expense from last week? Change the date and add it. Job profit recalculates retroactively. Your numbers stay accurate whenever you log.
Margin on Every Job
See the profit margin percentage on each job — not just the dollar amount. Spot at a glance which job types are running thin and which are genuinely strong.
Notes Per Expense
Add a note to any expense — receipt number, supplier, job-specific detail. Everything you'll need at tax time is attached right where it belongs.
2 months free · No credit card · Cancel anytime
From expense logged to profit calculated — in under 30 seconds.
Logging a job expense is faster than sending a text. Here's exactly how it works.
Tap Expenses in the bottom nav, then + New Expense
Open CashWrench and tap the Expenses tab. Tap + New Expense — the form opens immediately. No extra screens to navigate.
Choose Job Expense
Two options appear: Job Expense and General Expense. Tap Job Expense — this tells CashWrench this cost is tied to a specific customer's job, not general business overhead.
Enter the title, amount, category, and date
Short description — "Purchased Filter · Materials". Amount. Category. Date defaults to today. Takes about 15 seconds.
Link it to the job — this is the key step
Select which customer and job this cost belongs to. This is what connects the expense to your profit calculation. Without the link, it's just a number. With it, your margin updates instantly.
Tap Save — profit updates immediately
The moment you save, open the job and scroll to the Profit & Loss section: Invoice Total, Job Expenses, Net Profit, Margin. That's your real number. No spreadsheet. No waiting.
30s
Average time to log a job expense
Instant
Profit update after every expense saved
$0
Spreadsheets needed to track your margin
Also tracking business overhead?
Fuel, insurance, tools, phone bill
Costs that keep your business running regardless of which jobs you take. CashWrench tracks those separately so your per-job profit stays clean.
Stop guessing your margin.
Know it on every job.
Log materials in 30 seconds. See real profit update instantly. Know which work is genuinely profitable before the next job starts. Two months free. No credit card needed.
Start Free — Takes 2 Minutes✓ 2 months free · No credit card · ✓ Cancel anytime