Why does annualised ROI matter for resellers?

Two flips might both show 40% ROI — but one took 30 days to sell and one took 120 days. The 30-day flip annualises to around 486% and the 120-day one to around 122%. Annualised ROI shows which sourcing channels and categories are actually worth your time and capital over a full year, not just on a per-flip basis.

How do I use ROI to decide what to buy when sourcing?

Set a minimum ROI threshold before you buy — most resellers use 30–40%. Before purchasing, model the flip at your expected sale price using this calculator. If you cannot hit your minimum ROI at a realistic sell price after fees, pass on the item. This discipline keeps your capital working hard rather than sitting in slow-moving, low-margin inventory.

Reseller ROI Calculator — Return on Investment for Any Flip

Your numbers

Amount invested

What you paid for the item (purchase price).

Revenue received

What you sold it for before fees and costs.

Fees and costs

Platform fees, shipping, packaging, and any other costs to sell.

Days held (optional) How many days from purchase to sale. Used to calculate annualised ROI.

Results

—

ROI

Net profit—

Money multiple—

Annualised ROI—

Profit margin—

Track this ROI in stokd

Save the cost, sale price, fees, days held, and ROI for every flip — free for your first 25 items.

How it works

Four numbers. Your complete flip analysis.

Enter investment and revenue

What you put in and what you got back. Revenue is the gross sale price before any fees.

Subtract all fees and costs

Platform fees, shipping, packaging — every dollar that came out of your pocket to make the sale.

Add days held for annualised ROI

Annualised ROI lets you compare flips that took different amounts of time. A quick 30-day flip can outperform a 90-day one even with lower nominal ROI.

FAQ

ROI questions for resellers

What is ROI and why is it the best metric for resellers?

ROI (Return on Investment) measures profit as a percentage of what you spent. A $15 profit on a $30 item is 50% ROI — better than a $50 profit on a $300 item (16.7% ROI). ROI is the only metric that accounts for the size of your capital outlay, making it the right number to compare across very different flips.

What's a good ROI for resellers?

Most experienced resellers target 30–50%+ ROI as a minimum. Below 20%, the risk and effort often aren't worth it. Elite flippers on sourced lots or niche categories regularly hit 100%+ ROI. The number that matters most is what you can achieve consistently across many items, not just your best flip.

What is a money multiple?

The money multiple (also called MOIC — multiple on invested capital) shows how many times you multiplied your money. A 2.0x multiple means you doubled it. A 1.5x means you got back 1.5 times what you put in. It's a quick way to communicate the magnitude of a flip without explaining percentages.

Why does annualised ROI matter?

Two flips might both show 40% ROI — but one took 30 days to sell and one took 120 days. The 30-day flip annualises to around 486% and the 120-day one to around 122%. Annualised ROI is how you identify which sourcing channels and categories are actually worth your time and capital over a full year.

How do I use ROI to decide what to buy?

Set a minimum ROI threshold before you buy — most resellers use 30–40%. Use this calculator to model a flip at different possible sale prices before you commit. If you can't hit your minimum ROI at a realistic sell price, pass on the item. This discipline keeps your capital working hard rather than sitting in slow-moving, low-margin inventory.