The Scenario
Marcus has been freelancing as a UX designer for three years. He's busy — always has a project or two on the go — but he's not sure his business is actually profitable. He charges $85/hour for most work, but he's been taking on some fixed-price projects recently, and one of them ended up running 40% over the hours he quoted. On paper, he's grossing around $90,000 a year. In practice, after tools, taxes, and the occasional month where clients paid late, it doesn't feel like $90,000.
He decides to spend an afternoon running the actual numbers. Here's what he finds using the freelancer finance tools on his list.
Step 1: Find the Real Hourly Rate
Marcus thinks he's making $85/hour. But he's not tracking his actual hours — he tracks billable hours. The discovery calls, project scoping, invoicing, chasing payments, random admin, learning new tools... none of that gets billed.
He pulls up the Salary to Hourly Converter and plugs in his $90,000 annual income. At 40 hours/week, the tool shows $43.27/hour. But Marcus knows he works closer to 50 hours a week when he counts everything.
At 50 hours: $34.62/hour effective rate.
He also runs it at his target: if he wants to match the take-home equivalent of a $110,000 salaried job (accounting for benefits, retirement, the self-employment tax hit), he'd need to bill around $65–$70/hour net — which means raising his rate to $95–$105/hour depending on his overhead. He'd been operating with a 20% buffer. He needed closer to 35%.
If you want to understand the math behind this conversion in detail, the salary to hourly guide walks through how benefits and unpaid time factor in.
Step 2: Check Project-Level Margin
Marcus recently finished a UX audit project that he billed at $4,200 fixed price. He estimates it took him 52 hours. He opens the Profit Margin Calculator and inputs the numbers.
Revenue: $4,200 Direct costs (his time at $85/hour × 52 hours): $4,420
Gross margin: negative. He lost money on that project.
He reruns the numbers with his actual cost — the time he needs to properly scope and buffer for. A realistic 45-hour project needs to be quoted at $5,400+ to hit a 30% gross margin at $85/hour. He'd quoted $4,200 because that's what "felt competitive." It wasn't competitive — it was cheap.
He uses the calculator to set a floor: any fixed-price project needs at least a 30% gross margin built in. If he can't hit that on a quote, he either raises the price or turns it down. This is the rule he didn't have before.
The profit margin guide has more on the difference between gross and net margin — worth reading if the concept is new.
Step 3: Evaluate a Tool Purchase with ROI
Marcus has been eyeing a $600/year design software upgrade. He opens the ROI Calculator to figure out whether it's worth it.
He estimates the upgrade would save him roughly 2 hours/week on production work. At his $85 billable rate, that's $170/week in recovered time — or $8,840/year in potential additional billing capacity.
ROI: (($8,840 − $600) / $600) × 100 = 1,373%
That's a no-brainer, obviously — but he also runs a less optimistic version. What if it only saves 45 minutes/week? That's still $3,315/year in recovered capacity on a $600 spend. ROI: 452%. Still worth it.
He also checks his current project management tool — a $240/year subscription he's not sure he's actually using. He can't make a case that it's saving him even 30 minutes a week. He cancels it. That's $240 saved, and $0 in ROI for the calculator to defend.
For more on how to think about ROI on business expenses, the ROI calculation guide covers the formula and common mistakes.
Step 4: Fix the Invoicing
Marcus's invoices have been... fine. His name, a total, bank details. But he's had two clients pay late in the past six months and one who "didn't receive" an invoice until he followed up twice.
He uses the Invoice Generator to create a proper template. The new invoice includes:
- Sequential invoice number (he was just using dates before — no serial tracking)
- Line items with descriptions instead of a single "UX Design Services" line
- Net 14 terms instead of "when convenient"
- A note that invoices unpaid after 14 days accrue a 1.5% monthly late fee
- His ACH details front and center, not buried at the bottom
The next invoice he sends with this template gets paid in 6 days. He doesn't know if it's the clearer format, the explicit terms, or luck — but he keeps using it.
If you want the full breakdown of what goes on an invoice, the invoice creation guide covers every field and why it matters.
The Results
After one afternoon of number-crunching, here's what Marcus changed:
| Change | Impact | |--------|--------| | Raised hourly rate from $85 to $100 | +$15/hour on all future billable work | | Set 30% gross margin floor on fixed-price quotes | Eliminated unprofitable project bids | | Cancelled unused PM tool ($240/year) | $240 annual savings | | Approved design tool upgrade ($600/year) | ~$3,300–$8,800 in recovered billing capacity | | Upgraded invoice template with Net 14 terms | Faster payments, clearer paper trail |
He didn't change his clients, his services, or his hours. He changed what he charged and how he tracked it. That's the kind of tuneup most freelancers avoid because it feels uncomfortable — but the math doesn't care how uncomfortable it is.
Your Turn
If you're freelancing (or thinking about it), run your own numbers with these tools:
- Salary to Hourly Converter — Find out what your annual income actually looks like per hour when you count all your time
- Profit Margin Calculator — Check the margin on your last few projects and see if any of them were actually profitable
- ROI Calculator — Evaluate tools, subscriptions, or any business expense to see if it's earning its keep
- Invoice Generator — Build a professional invoice template with proper terms, line items, and payment instructions