For UK sellers

You’re selling… but are you making a profit?

Find out in 10 seconds how much real stuff is left over from every sale on eBay, Etsy, Amazon UK, Shopify, and TikTok Shop — with Royal Mail/Evri shipping and fees. Free, no sign up.

Calculate my profit now

Product details

The calculation updates with each change.

Sales channel

Typical final value fee + £0.30 per order

Product name (optional)

Sale price (£)

Product cost / COGS (£)

Packaging (£)

UK shipping

Ad cost per sale / CPA (£, optional)

Marketplace commission (%)

Payment processor fee (%)

Processor: eBay Managed Payments, included. Fixed fees: commission £0.30 + processor £0.00 per order.

Net profit per unit

£9.00

Net Margin 36.0% · Gross margin 70.0%

Across 100 sales your profit is £900.13.

This product is only profitable above £14.67.

Net Margin

36.0%

Before ads

Margin after CPA

—

Enter listing cost per sale

Break-even CPA

£9.00

Maximum ad spend per sale

Minimum ROAS

2.78x

Return required to avoid loss

Selling price£24.99

Item cost- £7.50

Shipping- £4.39

Packaging- £0.60

Marketplace commission- £3.50

Payment processor fee (eBay Managed Payments, included)- £0.00

Net profit£9.00

View plans

Save your calculations and keep track of your products.

Pro feature · 1 free trial

HMRC tax projection

See how far you are from the £90,000 VAT threshold, how VAT affects your margin, and get a summary ready for your accountant.

All it takes is a free account. No card.

18 seconds

See SellerPulse in action

From the free calculator to your saved catalogue and the £90,000 VAT threshold.

High revenue doesn’t mean high profit

Fees you don’t see

Marketplace commission, payment processing and fixed fees can take 15% or more of each sale.

Ads that lose money

If you don’t know your maximum CPA, you could be paying to sell at a loss.

The VAT surprise

Crossing £90,000 without planning? VAT could suddenly change your margin by 20%.

Your real profit in 3 steps

Choose where you sell

Rates for eBay, Etsy, Amazon UK, Shopify and TikTok Shop are ready to use.

Enter your costs

Product, packaging and Royal Mail or Evri shipping.

See what’s left

Real profit in £, margin and how much you can spend on ads.

SellerPulse Pro · £19/month

Stop guessing. Know the profit on your entire catalogue.

Multi-product catalog
VAT threshold projection £90k
Making Tax Digital alerts
Reports for the accountant

Calculate my profit for free View plans

Frequently asked questions

Is it really free?

Yes. Calculate as often as you like, with no sign-up or card.

Are the rates accurate?

We use standard UK channel rates, and you can adjust every figure to match your agreement.

What else do I get with Pro?

Your products in one place, VAT threshold projections, MTD alerts and reports for your accountant.

Does it replace my accountant?

No. It’s an estimate to help you plan — always confirm with a professional.