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eBay Charity Shop Flip Calculator

Estimate the profit, ROI and margin on an item you buy from a charity shop and resell on eBay after fees and postage.

Your Details

Overview

The eBay Charity Shop Flip Calculator helps you estimate whether a second-hand item is worth buying and reselling. Enter the charity shop purchase price, expected eBay sale price, selling fees, payment fee, postage and any extra costs to see your likely profit and return.

How it works

This calculator starts with your expected eBay sale price, then subtracts all the direct costs you enter. These include the item purchase price, eBay fee percentage, payment processing fee percentage, postage and any extra costs. Net profit is the amount left after those deductions. ROI shows how much profit you make compared with your item and handling spend, while profit margin shows how much of the sale price you keep as profit.

How to use this calculator

  1. 1Enter the price you paid or expect to pay for the item.
  2. 2Add the price you think it will sell for on eBay.
  3. 3Enter your estimated eBay and payment processing fee percentages.
  4. 4Include your postage, packaging and any other costs.
  5. 5Review the estimated net profit, ROI and margin before deciding to flip the item.

Example Calculation

Buy price

$8

Expected sale price

$35

eBay fee

13%

Payment processing fee

3%

Postage and packing cost

$5

Other costs

$1

Estimated net profit

$15.93

If you buy an item for £8 and sell it for £35, with 13% eBay fees, 2.9% payment fees, £4.50 postage and £1 other costs, the estimated net profit is about £15.19.

Frequently asked questions

What does this calculator estimate?

It estimates your likely net profit, ROI, margin and total costs when buying an item cheaply and reselling it on eBay.

Does this include eBay fees?

Yes. You can enter an estimated eBay fee percentage and a separate payment processing fee percentage.

Should postage be included as a cost?

Yes. If you pay for shipping or packaging, include those costs so your profit estimate is more realistic.

What is ROI in this calculator?

ROI shows your profit as a percentage of your purchase price plus direct handling costs such as postage and other expenses.

What is the difference between ROI and profit margin?

ROI compares profit with what you spent, while profit margin compares profit with the final sale price.

Can I use this for other flipping platforms?

Yes. You can use it for similar resale platforms by entering the relevant fee percentages and costs.

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Assumptions and warnings

Assumptions

  • Results are estimates based on the figures you enter for sale price, fees and costs.
  • The calculator assumes the item sells at your expected sale price.
  • It does not include taxes, returns, refunds or unsold stock.
  • ROI is based on your purchase price plus postage and other direct handling costs.

Warnings

  • This calculator provides an estimate only and is not financial or tax advice.
  • Actual eBay fees, delivery charges and selling prices can vary by category and account.
  • Check current marketplace fees and your own costs before buying inventory.