TikTok Shop P&L Calculator · Free Tool

Your unit economics

No button needed. The numbers on the right update as you type.

Your headline result

£0.00

contribution per unit (0% of price)

£0

kept per £100 of GMV, after returns

0.0x

break-even ROAS for paid amplification

Negative margin

This product loses money per unit. Costs and fees exceed the selling price, so there is no break-even ROAS, paid spend only deepens the loss. Raise the price, cut COGS or trim the commission until contribution turns positive.

Selling price	£0.00
Landed cost / COGS	−£0.00
Affiliate commission	−£0.00
Platform fee	−£0.00
Fulfilment	−£0.00
Contribution per unit sold	£0.00
Returns impact per unit	−£0.00
Net contribution after returns	£0.00

Directional, based on ranges we see across £100m+ managed GMV. Fee inputs are editable because they change, check your own seller terms.

How this is calculated

Straight unit economics, nothing hidden.

Contribution per unit = price − COGS − commission% × price − platform fee% × price − fulfilment.
Returns reduce net revenue: on a returned order we assume the product and the fees come back, but the fulfilment cost does not. Net contribution = (1 − returns rate) × contribution − returns rate × fulfilment.
Kept per £100 of GMV = net contribution ÷ price × 100.
Break-even ROAS = price ÷ contribution per unit. Below that, paid amplification burns cash.

Fixed costs, samples and content production sit above this line. The full breakdown by email models those too.

That is what you keep today. The full breakdown shows where the next five points of margin hide.

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✓Your margin model as a working spreadsheet, samples and content costs included

✓Anonymised benchmark ranges for your category

✓Where brands in your position find the next five points of margin

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margin questions, answered.

What fees does TikTok Shop charge sellers?

The main lines are the platform (referral) fee on each order, the affiliate commission you choose to offer creators, and your own fulfilment and returns costs. The calculator defaults to a 6% platform fee, editable because fee schedules change and vary by market and category. Always check your own seller terms, and re-run the numbers whenever TikTok updates them.

What is break-even ROAS and why does it matter?

Break-even ROAS is your selling price divided by your contribution per unit: the return on ad spend at which paid amplification stops losing money. If your contribution is £10.25 on a £25 product, break-even ROAS is about 2.4x, so any campaign delivering less than £2.40 of revenue per £1 of spend is burning cash. It is the single most useful number to know before switching on GMV Max.

Do brands really keep about two thirds of GMV?

As a rule of thumb, after the platform fee and a typical affiliate commission, before product and fulfilment costs, roughly two thirds of the topline is left. What you actually keep depends on your COGS, commission rate, fulfilment cost and returns, which is exactly what this calculator works out per unit and per £100 of GMV. Model on your own numbers, not the rule of thumb.

know what you keep.

margin questions, answered.

margins are won in the detail.