Resale and inventory

Keep resale profit and stock in one readable record

A practical way to see take-home profit, leftover stock, and what still needs counting — without pretending a spreadsheet or a small app is your accountant.

Flea-market and small-lot sellers often know the sale price but not the leftover after fees, shipping, and purchase cost. Stock lives in another note, so unsold inventory quietly becomes forgotten cash.

Who this is for

People selling on flea-market apps or handmade marketplaces
Small shops that count stock by hand a few times a month
Sellers who want a clearer monthly profit picture before talking to a tax professional

What usually goes wrong on paper

Sale price is written down, but fees and shipping are remembered later and often guessed.
Unsold stock is not connected to the purchase cost of each item.
Marketplace totals and a paper notebook never quite match.

What to look for in a record

Record sale price, fees, shipping, and purchase cost on the same row.
Keep leftover stock visible, not only completed sales.
Export a simple CSV when you need to review a month.
Do not expect the tool to decide what is deductible or how to file.

Pomeranian Studio templates and apps are record-keeping tools. They are not tax, accounting, or legal advice, and they do not prepare a tax return.

FAQ

Can I use this if I sell on more than one marketplace?

Yes. Treat the marketplace as a field you fill in. The useful part is one row per item, not a separate book per app.

Is the download an Excel workbook or a PDF?

The current download is a CSV file. It opens in Excel, Google Sheets, and similar apps. There is no macro-enabled workbook.

Guides

Related guides

Selling & Resale7 min read

How to Calculate Profit for Flea Market and Resale Sales

A practical guide to tracking your take-home profit per item, after fees, shipping, and the cost of goods.

Read article

在庫管理・小規模事業7 min read

How to Start Managing Inventory and Stock Counts for a Small Shop, the Easy Way

A practical guide to starting inventory and stock counts in a way that even a small shop or one-person business can keep up with.

Read article

Inventory and Small Business6 min read

How to do barcode stocktaking with an iPhone

Use barcodes and a CSV inventory sheet to find stocktaking differences faster in a small shop or solo selling workflow.

Read article

Templates

Related templates

CSV

Free Resale Profit Calculator Template

Record the take-home profit of each item you sell, after fees, shipping, and the cost of goods.

Free download

CSV

Inventory and Stocktake Sheet

An inventory sheet that records stock counts, items received and shipped, and stocktake results on a single page. Great for small shops or supply tracking.

Free download

Apps