Tracking Profit by Marketplace

Why totals mislead

Gross sales numbers treat every zł the same. For example, say you sell an item for 200 zł on Vinted and keep the whole amount because sellers pay nothing. On Allegro Lokalnie, that same 200 zł sale leaves you with 184.20 zł after 7.9% commission. If you also paid 12 zł for shipping, your net is 172.20 zł — a significant gap from the gross number.

The column method below separates each step so you see exactly what reaches your bank account per marketplace. For understanding the difference between what you collect and what you keep, see gross margin vs net margin.

The tracking columns

Create a spreadsheet with these columns for every sale:

The formulas are straightforward:

• net_payout_zl = sale_price − marketplace_fee − shipping_you_paid
• profit_zl = net_payout − buy_price − extra_costs
• roi = profit / (buy_price + extra_costs)

A downloadable template with these columns and formulas is available at /blog/assets/templates/reseller-inventory-profit-tracker.csv. For tracking broader KPIs, see reseller KPIs.

Fee rules that differ per channel

Each platform charges differently, and the rules affect what you record:

Vinted — Selling is free for individuals. The only seller-side costs are optional Bump and Showcase, which appear as separate line items when you use them. The buyer pays the buyer protection fee, which does not affect your payout. Record marketplace fee as zero unless you used a promotion product.

Allegro Lokalnie — Listing is free. The commission is 7.9% of the item value for most categories (4.9% for electronics). Local pickup listings cost nothing. The fee is charged only if the buyer completes payment within 72 hours or fills in the delivery form. If you refund the buyer through Allegro, the commission is refunded. Record the percentage that applies to each category.

OLX — The "Zapłać, jeśli sprzedasz" (pay if you sell) model charges commission as a percentage of the gross item price, possibly plus a fixed element, with delivery fees excluded. The rate is not published in OLX's public documents. Record the exact deduction shown in your payout summary — over time you will see the effective rate. This requires using OLX shipping and OLX Payments.

For a detailed comparison of these and other platforms, see Poland marketplace fees. If you want to know which platform charges the least in theory before you list, see cheapest marketplace by price.

Money timing per channel

Knowing when you get paid matters for cash flow:

Vinted — Payment is pending from the moment the buyer purchases until the order completes. The buyer has 2 days after delivery to complete the order or open a claim. After completion, payment arrives within 2 days. Bank withdrawal then takes up to 5 business days. From sale to usable funds, our rule of thumb is to plan for roughly 9 business days minimum.

OLX — Payout is ordered when the buyer confirms receiving a conforming item, or 48 hours after pickup or delivery if no Pakiet Ochronny claim is filed. If the buyer does not confirm within 72 hours or you do not hand over the parcel within 3 working days, the buyer is refunded automatically.

Allegro Lokalnie — Funds are released after the buyer pays and the transaction completes, typically within the same timeframe as Allegro proper.

Monthly channel review

At the end of each month, calculate three numbers for each marketplace:

1. Total net profit — sum of profit column for that channel
2. Average profit per item — total profit divided by number of sales
3. Average profit per hour — if you track time spent listing and shipping, divide total profit by hours worked

These numbers reveal which channel delivers the best return on your time and inventory investment. If Vinted generates the most sales but Allegro Lokalnie yields higher profit per item, consider sourcing more items suited for the Allegro buyer.

If one channel consistently outperforms, direct more inventory there. If a channel shows low profit despite high volume, examine whether fees or low sale prices are the cause.

For OLX, your records become your source of truth since the rate is unpublished. If you notice the commission rising, that may signal a policy change.

If you sell on both Allegro and Allegro Lokalnie, remember that DAC7 reporting treats them as one — the 30-sale and 2,000 EUR thresholds are combined across both platforms. Being reported creates no new tax obligation, but it is part of your compliance record.

For a sourcing log template, see sourcing log.