THE FLIP LAB · FREE TOOL

What's the actual profit?

That sweet yard-sale find needs more than a sticker price and a hopeful resale listing. Enter the full deal, and the numbers update as you type.

A vintage stained-glass lamp alongside a calculator, shipping scale, and packing materials
SMART PRESETS · U.S. SELLERS

Where will you sell it?

Choose a marketplace and shipping service. We'll fill in the fee and postage assumptions—you can still edit every amount.

Rates reviewed Nov 1, 2026
Use real quoted prices for zone/weight services.
Official USPS rates effective Oct 4, 2026. Box/envelope must fit; extras may apply.
THE FIND
YOUR REAL COSTS
OPTIONAL SELLING ADJUSTMENTS

Sales tax is not added to seller proceeds. Some marketplace processing fees apply to it; extra listing, subscription, taxes on fees, or optional advertising charges may still apply. Place nonpercentage expenses in Other costs.

ESTIMATED NET PROFIT$32.23Checking your numbers...
ROI on acquisition + direct costs0%
Break-even item sale price$0.00
All-in selling fees$0.00
Net margin on buyer payments0%

Where the money goes

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FIELD NOTES · BUY OR PASS

How ready is this deal?

The math is only one part of the decision. Check what you have independently verified.

0/5checks complete

Start by identifying your item and researching real sold comparisons.

Read the five-minute buy-or-pass field guide →

Results are scenarios, not professional appraisals or live market-price estimates. Marketplace presets are U.S. baseline assumptions, not a final fee quote. Calculations adjust for each preset’s fee basis and selected shipping-payment method. Review your own category, account tier, taxes, ads, label eligibility and marketplace statement.

NEXT STEP: VERIFY THE SALE PRICE

Turn your estimate into research.

Search comparable sold items before treating the expected resale value as realistic.

Reading the result

Estimated net profit

The buyer’s payments minus selling fees, acquisition price, actual postage, packaging, repair and other direct costs.

Break-even sale price

The minimum item sale price at the entered shipping-charge and percentage-fee assumptions. No allowance for future returns or time spent.

ROI

Profit divided by cash invested in the purchase and direct expenses, before selling fees. We label the denominator so you know exactly what the percentage means.

If you need practical sourcing, cleaning, platform workflow or equipment advice, see ThriftFlipping.com. This tool specializes in value research and deal math.