RigHow to Calculate Your PC Flip Profit (And Stop Guessing)
You bought a used PC for $200 and sold it for $450. That's $250 profit, right?
Wrong. And this mistake kills more PC flipping side hustles than bad deals ever will.
The Hidden Costs That Eat Your Margins
Most PC flippers only track the obvious: buy price minus sell price. But your real profit is way lower once you factor in:
- Platform fees — eBay takes 13%, Facebook Marketplace has shipping fees, Craigslist costs you time and gas
- Shipping — a mid-tower case with a GPU weighs 25-40 lbs. That's $30-60 in shipping
- Parts you replaced — that $15 SSD, the $8 thermal paste, the $25 case fan you threw in
- Your time — cleaning, testing, troubleshooting, listing, messaging buyers, meeting up
- Failed flips — the motherboard that was dead on arrival, the GPU that artifacts under load
A Real Example
Let's break down an actual flip:
| Item | Cost |
|---|---|
| Bought PC (Facebook Marketplace) | $180 |
| New 500GB SSD | $28 |
| Thermal paste + cleaning supplies | $12 |
| Replacement case fan | $15 |
| Gas (pickup + delivery) | $8 |
| Total investment | $243 |
| Sold for | $475 |
| eBay fees (13%) | -$61.75 |
| Shipping | -$42 |
| Actual profit | $128.25 |
That "almost $300 profit" turned into $128. Still decent for a side hustle — but if you were pricing your builds based on the wrong number, you'd undercharge and eventually quit.
The Formula Every PC Flipper Needs
Here's the real profit formula:
Net Profit = Sale Price - Purchase Price - Parts Cost - Platform Fees - Shipping - Misc Costs
Profit Margin = (Net Profit / Sale Price) × 100
For most PC flippers, a healthy margin is 20-35%. Below 15% and you're basically working for minimum wage once you count your hours.
What Good Flippers Track
The flippers making consistent money aren't just tracking profit per build — they're tracking:
- Average profit per flip (aim for $100-200+ per build)
- Time per flip (4-6 hours is typical — less means you're efficient)
- Effective hourly rate ($25-50/hr is the sweet spot)
- Success rate (what percentage of buys turn into profitable flips?)
- Best sourcing channels (where do your most profitable deals come from?)
Stop Using Spreadsheets
Look, a spreadsheet works for your first 5 flips. But once you're doing this regularly, you need something purpose-built.
That's why we built Rig Flip — it's a profit tracker designed specifically for PC flippers. Log your buys, track every cost, see your real margins, and know exactly which types of builds make you the most money.
No more guessing. No more "I think I made money on that one."
Quick Rules of Thumb
Before you buy any PC to flip, run these numbers in your head:
- The 2x Rule — Can you realistically sell it for at least double what you're paying? If not, the margins are probably too thin after fees and costs.
- The $100 Floor — If the projected profit is under $100, it's probably not worth your time unless it's a quick, easy flip.
- The 30-Minute Test — If it takes you more than 30 minutes of troubleshooting to get a system stable, factor that into your costs.
- Know Your Market — A gaming PC with an RTX 3060 sells differently in a college town vs. a rural area. Check local sold listings before you buy.
The Bottom Line
PC flipping is one of the best tech side hustles out there. But the people who make real money at it treat it like a business — and that means knowing your numbers.
Track every cost. Calculate real margins. And stop relying on gut feelings to tell you if a deal is worth it.
Your future self (and your bank account) will thank you.