TikTok Shop profit formulas and official sources

What the result represents

Contribution is expected revenue excluding output VAT, less the variable costs entered. It is not platform payout, accounting net income, bank cash flow or profit after business overhead and income tax. Costs should exclude recoverable input VAT; include unrecoverable tax in the relevant cost instead of deducting it twice.

Country standard VAT is only a starting assumption. A zero or reduced product rate can be entered explicitly. Switching currency changes the unit label, not the numbers; convert price and every cost yourself using the same dated exchange-rate basis.

Inputs and units

In the formulas below, percentages are decimals: 9% is 0.09. Monetary inputs are non-negative. All proportions are constrained to 0–100%.

Revenue, VAT and refunds

Gross customer payment G = P + S
Expected gross refund R = r × (P + S × h)
Revenue excluding VAT N = (G − R) ÷ (1 + v)

Buyer shipping is included in revenue, not just in the commission base. Product and shipping are assumed to share one VAT rate. The refund probability removes the full product price on returned orders; the shipping-refund slider determines how much buyer shipping is also returned. Mixed tax rates, shipping with different VAT treatment and partial product refunds need a more detailed order calculation.

Fees and contribution

Platform commission F = (G − R × p) × f
Affiliate commission A = P × a × s × (1 − r × q)
Advertising D = P × d
Expected product cost Cnet = C × (1 − r × k)
Expected return handling = r × H
Contribution Π = N − F − A − D − Cnet − L − O − r × H
Contribution margin = Π ÷ G

A 100% fee-reversal assumption does not say every return has no cost. Outbound fulfilment and ad spend remain, reverse logistics can be added, and recovery may be below 100%. Platform-funded coupons, platform reimbursements and multi-item fee allocations are not modeled as dedicated fields. Reconcile those items separately rather than silently treating them as zero.

TikTok's general commission document uses net sales plus buyer-paid shipping less applicable refunds. The wording 'net sales' does not automatically mean a VAT-exclusive fee base. Reduction-policy examples can also account for platform-funded discounts; check which order fields are included before applying the simplified no-subsidy model.

Price floor, ad ceiling and affiliate limit

Pre-ad contribution B = Π + D
Break-even gross-product ROAS = P ÷ B  (only when P > 0 and B > 0)
Price-dependent contribution Π(P) = slope × P + intercept
Required price = −adjusted intercept ÷ adjusted slope
  where adjusted contribution = Π(P) − target margin × (P + S)
  target 0% gives break-even; round the result up to 0.01
Affiliate rate ceiling = (Π at a=0 − target margin × G)
                        ÷ [P × s × (1 − r × q)]

The price tool accepts a target contribution margin, with 0% for break-even. It holds buyer shipping, fixed costs and all rates constant. If contribution at zero product price already meets the selected target, the floor is zero. Otherwise, a non-positive slope after subtracting the target means no finite price can solve the scenario. The affiliate tool rounds its ceiling down to two decimal percentage points and caps it at 100%; it separately reports an unreachable target or a zero chargeable affiliate base.

This ROAS uses gross product price excluding buyer shipping. Product GMV Max reports ROI using its own gross-revenue definition and can attribute paid and organic orders. Neither that dashboard ratio nor this planning threshold alone proves incremental advertising profit. Align revenue, attribution and time windows before comparing.

A reproducible no-return example

Illustrative German order: product €119, buyer shipping €0, VAT 19%, platform 9%, goods €30, fulfilment €5, ads 10%, affiliate rate 10% on 50% of product revenue, no refunds. These are assumptions, not observed seller results.

119 ÷ 1.19 = €100.00
€100.00 − €10.71 − €5.95 − €11.90 − €30.00 − €5.00 = €36.44
Contribution margin = 30.62%
Pre-ad contribution = €48.34
Break-even gross-product ROAS = 2.46×

Calculations use decimal arithmetic. Displayed money is rounded to two decimals, price floors up and affiliate ceilings down. Cohort promotion savings are calculated before rounding, so a daily total may differ slightly from a displayed per-order amount multiplied by volume.

Dates, eligibility and market comparisons

A planning date does not activate a TikTok mission. The introductory tool adds the relevant 60- or 90-day duration to the entered activation date and shows the estimated first day after that window. Seller Center controls the actual activation timestamp and expiry. Where two applicable reductions exist, the model uses the lower rate rather than adding discounts.

Comparison rows start from the article's common EUR scenario and each country's standard VAT. Price and fulfilment can be edited in the table; country-specific controls also accept actual tax, platform, advertising, creator and return assumptions. An override stays fixed when shared inputs change. Restore shared values to remove that country's overrides. Currency conversion and demand forecasting are not automatic.

The period comparison splits the selected selling window at each group's activation and expiry dates. Each segment equals days × expected daily orders × commission base × applicable rate. It assumes a constant daily volume per group, uses the lower applicable fee where reductions overlap, and totals unrounded segment amounts before display. It compares platform fees only; calculate VAT and other operating costs separately.

Official source ledger and scope

Public pages below were reviewed on 3 September 2026. The dates shown are the document's displayed update dates, not universal policy effective dates. The wording and country tags can differ; a narrow document is not evidence that every rule applies across all 13 markets.

About TokMargin and this review

TokMargin publishes independent tools and explanations for operating TikTok Shop products in Europe. It has no affiliation with or endorsement from TikTok or ByteDance. This version combines public-document review with reproducible arithmetic examples; it has not been reconciled against a connected seller account or independently audited settlement dataset.

Before acting, identify the assumption most likely to change: confirmed SKU rate, actual returns, local delivery or the revenue basis used by your ads report. Replace that assumption with evidence and rerun the relevant tool.