What is a good ROI for eBay resellers?

Most experienced thrift and yard-sale flippers target at least 100% ROI — buy for $10, profit at least $10 net after all costs. Below 50% ROI, the time spent sourcing usually isn't worth it unless the item moves fast or you're building feedback. Big-ticket Facebook Marketplace flips often run 30–80% ROI but with much higher absolute profit.

How is ROI different from profit margin?

ROI compares profit to what you paid to acquire the item (purchase cost). Margin compares profit to what the buyer paid (selling price). ROI is the reseller's number — it tells you how productive your sourcing dollars are. Margin is the merchant's number — it tells you how much of the sale price you keep.

Should I include my time when calculating ROI?

ROI is traditionally money-only, but for reseller decision-making you should track time separately. If a flip takes 45 minutes total (sourcing, photo, listing, packing, drop-off), even at $15/hr that's $11.25 of labor. A 'profitable' $5 net flip can be a money loser when you cost in your time.

Which eBay fees should I enter?

Use the all-in fee: the category's final value fee percentage applied to total payment (item + shipping), plus the per-order fee (currently $0.30 or $0.40 depending on the category). The eBay Fee Calculator will give you that number for a specific sale; bring it back here.

Why does ROI look so high on cheap flips?

When the purchase cost is small, even a modest dollar profit produces huge ROI percentages — a $1 buy that nets $9 is 900% ROI. That's mathematically real but operationally limited: you can't scale by repeating a $9 flip 1,000 times. Use ROI alongside dollar profit, not instead of it.

Should I count gas and sourcing trips?

Yes, for any meaningful sourcing run. A $25 tank of gas across 10 flips is $2.50 per item — small per flip, real over time. Put it under 'Other expenses' or build a per-trip overhead estimate into your average.

What ROI should make me walk away from a deal?

Most resellers won't buy anything below ~30% ROI unless it sells in days and absorbs no time. Below break-even (negative ROI) is an obvious no, but the harder line is the 'meh' zone — 20–30% ROI flips fill up storage and time with very little payoff.

eBay ROI Calculator

Plug a thrift-store find, garage-sale grab, or Facebook Marketplace pickup into this calculator before you hand over cash. It runs the eBay reseller's core question — 'is this flip actually worth doing?' — by working out net profit, ROI, profit margin, and total revenue from your purchase cost, expected sale price, eBay fees, shipping, packaging, and any other costs of the deal.

Last Updated: June 2026

New calculator — ROI, net profit, and margin for eBay resellers sourcing from thrift stores, garage sales, and Facebook Marketplace.

Try a sourcing scenario

Load a realistic flip — then tweak the numbers to match the deal in front of you.

The deal

Enter what you're paying and what you expect to sell it for, then break down the costs.

Purchase cost ($)

What you paid to acquire the item.

Selling price ($)

What the buyer pays you, before fees.

eBay fees ($)

Final value fee + per-order fee. Use the eBay Fee Calculator if unsure.

Shipping cost ($)

Actual postage you pay the carrier.

Packaging cost ($)

Box/mailer, tape, dunnage — per shipment.

Other expenses ($)

Gas to source, cleaning supplies, parts, anything else.

Net profit

$28.88

Strong flip

ROI

722%

Profit ÷ purchase cost

Profit margin

64.2%

Profit ÷ selling price

Total revenue

$45.00

Gross sale before costs

Verdict

Strong flip

You'd keep $28.88 on a $4.00 buy — 722% ROI. Resellers usually want at least 50–100% ROI to absorb duds and time spent sourcing.

Where the money goes

Visual breakdown of every dollar between the buy and the payout.

Purchase cost: $4.00 (9%)
eBay fees: $6.12 (14%)
Shipping: $5.25 (12%)
Packaging: $0.75 (2%)
Other expenses: $0.00 (0%)
Net profit (what you keep): $28.88

Related eBay calculators

All calculations are estimates based on average platform fees. Real profits may vary depending on category, ads, and shipping.

Formula

Total expenses = Purchase cost + eBay fees + Shipping + Packaging + Other · Net profit = Selling price − Total expenses · ROI % = (Net profit ÷ Purchase cost) × 100 · Margin % = (Net profit ÷ Selling price) × 100

Worked example

Thrift store flip: $4 purchase, $45 sale price, $6.12 eBay fees, $5.25 shipping, $0.75 packaging, $0 other.

Total expenses = 4 + 6.12 + 5.25 + 0.75 + 0 = $16.12
Net profit = 45 − 16.12 = $28.88
ROI = (28.88 ÷ 4) × 100 = 722%
Margin = (28.88 ÷ 45) × 100 ≈ 64.2%

Answer: $28.88 profit · 722% ROI · 64.2% margin on a $4 buy

How it works

ROI (return on investment) is the reseller's most useful single number, because it tells you how hard each dollar you spend on inventory is working — not just whether a sale is profitable. A $30 profit sounds great until you find out it came off a $200 buy: that's 15% ROI, which is barely above what your cash would earn in a savings account once you factor in time spent sourcing, listing, and shipping.

Thrifting, garage sales, and Facebook Marketplace produce wildly different ROI profiles. Thrift store finds usually deliver triple-digit ROI because the buy is so cheap; the limiting factors are time spent hunting and the eBay fees and shipping that compress the headline price. Garage sale flips often look even better on paper but get killed by category-specific final value fees and odd-shaped, heavy shipping. Facebook Marketplace deals tend to be larger-ticket — the absolute profit can be bigger but ROI lower, and you have to bake in gas and time meeting strangers.

Use this calculator in two modes: as a go/no-go check at the point of sourcing, and as a post-mortem after the sale clears. The post-mortem is where most resellers find systematic leaks — packaging that crept up, a flat shipping charge that no longer covers postage, a category whose final value fee is higher than they remembered. A healthy reseller target is 50–100%+ ROI on the average flip; below that, you're funding your hobby, not building a business.

Common mistakes

Forgetting eBay's per-order fee in addition to the final value fee — together they often eat 13–15% of total payment, including shipping.
Ignoring shipping cost because the buyer pays it — eBay charges fees on the shipping you collect, so the net is almost always less than postage.
Skipping packaging — boxes, bubble mailers, tape, and dunnage typically run $0.50–$2.00 per shipment.
Counting your time as free — if a flip takes an hour of sourcing, listing, and packing, even $15/hour of labor changes the picture.
Confusing margin with ROI — 60% margin on a $50 item bought for $20 is 90% ROI, not 60%; they answer different questions.
Comparing one flip to another using profit alone — a $40 profit on a $5 buy beats a $40 profit on a $100 buy every time.

Go deeper with plain-English guides on the same topic.

FAQ

What is a good ROI for eBay resellers?: Most experienced thrift and yard-sale flippers target at least 100% ROI — buy for $10, profit at least $10 net after all costs. Below 50% ROI, the time spent sourcing usually isn't worth it unless the item moves fast or you're building feedback. Big-ticket Facebook Marketplace flips often run 30–80% ROI but with much higher absolute profit.
How is ROI different from profit margin?: ROI compares profit to what you paid to acquire the item (purchase cost). Margin compares profit to what the buyer paid (selling price). ROI is the reseller's number — it tells you how productive your sourcing dollars are. Margin is the merchant's number — it tells you how much of the sale price you keep.
Should I include my time when calculating ROI?: ROI is traditionally money-only, but for reseller decision-making you should track time separately. If a flip takes 45 minutes total (sourcing, photo, listing, packing, drop-off), even at $15/hr that's $11.25 of labor. A 'profitable' $5 net flip can be a money loser when you cost in your time.
Which eBay fees should I enter?: Use the all-in fee: the category's final value fee percentage applied to total payment (item + shipping), plus the per-order fee (currently $0.30 or $0.40 depending on the category). The eBay Fee Calculator will give you that number for a specific sale; bring it back here.
Why does ROI look so high on cheap flips?: When the purchase cost is small, even a modest dollar profit produces huge ROI percentages — a $1 buy that nets $9 is 900% ROI. That's mathematically real but operationally limited: you can't scale by repeating a $9 flip 1,000 times. Use ROI alongside dollar profit, not instead of it.
Should I count gas and sourcing trips?: Yes, for any meaningful sourcing run. A $25 tank of gas across 10 flips is $2.50 per item — small per flip, real over time. Put it under 'Other expenses' or build a per-trip overhead estimate into your average.
What ROI should make me walk away from a deal?: Most resellers won't buy anything below ~30% ROI unless it sells in days and absorbs no time. Below break-even (negative ROI) is an obvious no, but the harder line is the 'meh' zone — 20–30% ROI flips fill up storage and time with very little payoff.

Related Calculators

You may also find these tools helpful.