Calculator · France

Net margin calculator

What you really keep after supplier, customs, shipping, payment fees, ads, returns, contributions and tax. For a micro-business, a sole trader or a company.

Sample values pre-filled: a stainless steel necklace imported from China.

The essentials

Selling price incl. VAT

Supplier price per unit

Product categoryTARIC rate for code 7117 19 00 90, origin China, to check for your product. Source Find my product's exact rate

Who ships?You store and ship the parcels yourself.

Refine the calculationEverything is pre-filled: only change what you know (legal form, customs, shipping, ads, returns…).

Sale

Legal form

VAT status

Purchase and import

Sourcing

Batch imported then resold from France: standard customs duty on the purchase cost.

Supplier freight per unit

Customs duty

Depends on the product's HS code · Reference rate to verify

Fixed import fees per unit

Parcel tax, forwarder fees…

Import VAT

Not reclaimable when VAT exempt: counted as a cost · Reference rate to verify

Customer shipping

CarrierShipping estimated at €4.10 by weight: pro rate excl. VAT (0–9 parcels a month, up to 10% off above), VAT added if you can't reclaim it. Source

Parcel weight

Packaging

Platform and payment

Payment fees (%)

Reference rate to verify

Payment fees (fixed)

Reference rate to verify

Platform commission

0 on Shopify Payments, more on a marketplace

Acquisition and returns

Ad cost per sale (CPA)

Return rate

Cost of a return

Return postage and refunded shipping

Unsellable returns

Share of returned products lost

Overheads and goalFlat-rate income tax payment (versement libératoire)Contributions of 13.3% of revenue instead of 12.3%, if your taxable income allows it.

Social contributions (URSSAF)

Reference rate to verify

Monthly fixed costs

Store plan, apps, domain

Monthly net income goal

Profit before ads per saleEstimate

€14.71Profitable product

You can spend up to €14.71 on ads per sale before losing money.

net margin on revenue excl. VAT: 49.2%
max CPA before loss: €14.71
minimum ROAS: 2.03

Where each euro of the selling price goes.

Selling price incl. VAT	€29.90
Product and freight	− €4.30
Customs and import	− €1.06
Shipping and packaging	− €5.00
Payment and platform	− €0.70
Advertising	− €0.00
Returns (average)	− €0.45
Social contributions	− €3.68
Net profit	€14.71

Target margin

Suggested price: €18.07

The lowest selling price incl. VAT that reaches this net margin, with all your other settings.

Assumptions used

sales per month to hit the goal: 72
matching monthly revenue incl. VAT: €2,152.80

Includes €45.00 of fixed costs. Over 12 months: €25,833.60 in revenue. Micro-business ceiling: €203,100.00. VAT exemption threshold: €85,000.00. Reference amounts to verify.

Coming soon: save your products to your dashboard.

Reference rates used

Dated and sourced, all still to be verified. You can change them in the form.

Standard VAT	20%	since 1/1/26	To verify	Source
Import VAT	20%	since 1/1/26	To verify	Source
Default customs duty	0%	since 1/1/26	To verify	Source
URSSAF, sale of goods	12.3%	since 1/1/26	To verify	Source
URSSAF micro with flat-rate income tax	13.3%	since 1/1/26	To verify	Source
Corporate tax, reduced rate	15%	since 1/1/26	To verify	Source
Maximum profit at reduced rate	€42,500.00	since 1/1/26	To verify	Source
Corporate tax, standard rate	25%	since 1/1/26	To verify	Source
Stripe, EEA card (%)	1.5%	since 1/1/26	To verify	Source
Stripe, EEA card (fixed)	€0.25	since 1/1/26	To verify	Source
Micro-business revenue ceiling, sales	€203,100.00	since 1/1/26	To verify	Source
VAT exemption threshold, sales	€85,000.00	since 1/1/26	To verify	Source
Distance sale flat duty, per line	€3.00	since 7/1/26	To verify	Source
Flat duty ceiling, per parcel	€150.00	since 7/1/26	To verify	Source