Guides
Guides for UK ecommerce VAT, marketplace fees, discounts, profit margins, markup, and selling price checks
Use these short guides to move faster through ecommerce pricing tasks, VAT-inclusive and VAT-exclusive price checks, discount pricing, shipping and marketplace fee checks, profit margin checks, markup checks, and saved deck values on mobile.
Common ecommerce pricing checks
The calculator is useful for quick UK ecommerce pricing checks where VAT, product cost, delivery charges, marketplace fees, discounts, and target margin all affect the final selling price.
Start with the number you trust most, such as supplier cost or target customer price, then add VAT, remove VAT, apply a discount, or add fee and shipping costs before checking whether the price still works.
- Net to gross UK VAT checks before publishing a product price.
- Gross to net checks when a VAT-inclusive customer price is already fixed.
- Marketplace fee, shipping cost, profit margin, markup, and sale discount checks for listings and quotes.
UK VAT calculator guide
Use +VAT to move from net to gross pricing and -VAT to work backwards from a VAT-inclusive amount.
This is useful when you need to compare supplier costs, VAT-exclusive product prices, and customer-facing VAT-inclusive prices.
Keep the VAT rate consistent with your business rules if you change it in settings.
- Enter a net price, then tap +VAT.
- Enter a gross price, then tap -VAT.
- Use the display as a quick cross-check before sending a quote.
VAT-inclusive price calculator guide
VAT-inclusive pricing is the customer-facing amount after VAT has been added to the net product price.
Use +VAT when you have the net amount and need the gross price. Use -VAT when you have the gross amount and need to check the VAT-exclusive price.
- Check supplier net costs against customer-facing prices.
- Work backwards from a VAT-inclusive selling price.
- Compare VAT-exclusive and VAT-inclusive product prices before publishing.
Product pricing calculator guide
Use the main calculator as a product pricing calculator when you need to combine item cost, VAT, discounts, shipping, and target profit checks.
For repeated ecommerce pricing work, save common shipping fees, wholesale costs, or target price points to the deck so you can reload them quickly.
- Start with the product cost or target selling price.
- Apply VAT, discount, markup, or margin checks as needed.
- Save common values to the deck for repeated listings or quotes.
Marketplace fee calculator guide
Use the calculator to add shipping fees, marketplace costs, fulfilment costs, and payment fees to a product price before checking VAT, margin, or markup.
This is useful when a selling price looks profitable before fees but needs a final check after platform and delivery costs are included.
- Start with the product cost or target sale price.
- Add shipping, fulfilment, marketplace, or payment fees as separate calculator steps.
- Use margin or markup checks after costs are included so the selling price reflects the full ecommerce cost base.
Discount calculator guide
The -10% and +10% buttons are built for quick ecommerce discount calculations without opening a separate calculator mode.
- Use -10% for sale pricing.
- Use +10% for margin tests or upsells.
- Chain the result into the normal keypad if you need a second operation.
Profit margin and markup calculator guide
Use the profit margin and markup shortcuts when you need to compare selling price against cost without rebuilding the calculation by hand.
Keep a common cost base in mind so you can check target margins quickly before listing a product or sending a quote.
- Compare cost against target sale price.
- Check markup and margin before publishing.
- Use the calculator display as a quick sanity check for each step.
Deck guide
The deck stores values locally so you can load them back without losing the current calculator state.
- Tap Add to deck to save the current value.
- Tap a card to paste its value back into the calculator.
- Delete cards you no longer need using the small delete button on each card.
Best practices
Keep the deck for repeated values such as shipping fees, target margins, and common product tiers.
Use the calculator on the main page for day-to-day work and the guides page when you want a reminder of the shortcuts.
FAQ
The calculator is designed for quick UK VAT, discount, profit margin, markup, and ecommerce pricing checks without a separate app flow.
The deck is stored locally in the browser, so your saved values stay on the device you are using.
The guides page is the best place to revisit the main shortcuts before repeating a pricing task.