Skip to content

GTX help & guides

Marlin GTX help

Point-of-sale and business management for tyre and mechanical workshops.

Supplier Discounts

Learn about Supplier Discounts in Marlin GTX trusted automotive software by Megabus.

Updated 12 October 2026

{{snippet.legacy inform}}

GTX enables you to create and apply supplier discount levels so that purchases automatically reflect agreed discounts off the Supplier List price.

Create Supplier Discounts

Before applying supplier discounts to products, you will need to create the supplier discount levels that you receive.

From the Marlin GTX menu select System Files > Suppliers > Supplier Discounts.

Click on the Add icon to add a new supplier discount level.

Enter a short Code and descriptive Name to the Discount.

Select whether the discount is a Percentage or a Dollar Amount off the Supplier List price.

Select the desired Rounding method.

Help centre screenshot

Click on the {{glossary.Save}} button.

Repeat the process to add any other discount levels you receive from your suppliers.

Help centre screenshot

Apply The Discount To Products

From the Marlin GTX menu, select Main > Products > Manage Products.

Open the relevant Product.

On the Details tab, ensure that the Supplier List price is entered.

Help centre screenshot

On the Options tab, select the appropriate Supplier Discount from the drop down list.

Help centre screenshot

Click on the {{glossary.Save}} button.

Purchases

When the product is now selected on a Purchase, the displayed Cost will automatically apply the selected discount to the Supplier List price (i.e. $105 - 20% :** $84).

Help centre screenshot

After the purchase, the discounted price will be reflected as the Last Cost on that product.

Help centre screenshot