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Invoicing & Payments

How Discounts Work on Estimates with Optional Items

2 min readUpdated Apr 27, 2026

After reading this, you will understand how Rundo applies discounts to estimates that have optional add-ons. The short version: discounts apply to required items only. Optional add-ons are priced at full value. This keeps the base discount honest and prevents confusion at acceptance time.

1

Add a discount in the editor

On any estimate, click Add discount and choose either a percent or a fixed dollar amount.

2

See it applied to required items

The discount shows as a negative line in the totals card. It reduces only the required subtotal, not the optional add-ons.

3

Check the Total

The Total reflects the discount. This is what the customer sees as their committed price in the email subject and body.

4

Check the Plus add-ons line

If the customer chooses any optional items at acceptance, those items are added at full price. The discount you set does not apply to them.

5

After acceptance

The estimate detail page shows the original discounted total plus a Plus add-ons line for whatever the customer added. The accepted total is the sum.

Pro tip

If you want a discount to apply to a specific add-on, do not mark that item as optional. Build your add-on at its discounted price and put it in the required section, or skip the discount and lower the unit price directly. The discount-on-required rule keeps the math predictable for the customer.

Need more help?

support@rundo.ca
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