Percentage Discount vs Fixed Discount

What is the difference between a percentage discount and a fixed discount?

A percentage discount reduces a price by a selected percentage. The value of the saving changes depending on the original cost.

A fixed discount removes a specific amount from the price. The value of the saving remains the same regardless of the original cost.

For example, a ten percent discount on £500 removes £50. A fixed discount of £50 also removes £50. However, if the original price changes to £1,000, the ten percent discount becomes £100 while the fixed discount remains £50.

What is a percentage discount?

A percentage discount reduces the price of goods or services by a selected proportion. Businesses commonly use percentage discounts for promotions, customer loyalty offers, seasonal sales, and large purchases.

The discount amount increases as the original price increases. This means the customer receives a larger monetary saving when the price is higher.

Percentage discounts can be applied to an individual item, selected products or services, or the complete invoice subtotal.

How do you calculate a percentage discount?

To calculate a percentage discount, multiply the original price by the selected percentage written as a decimal. This provides the value of the discount.

For example, a fifteen percent discount on an invoice subtotal of £400 creates a £60 reduction. Subtracting £60 from the original subtotal leaves an adjusted amount of £340.

The invoice should clearly display the original amount, discount percentage, value removed, and adjusted total.

Percentage discount example

Imagine that a web designer charges £1,200 for a project and provides a repeat customer discount of ten percent.

Ten percent of £1,200 is £120. The invoice can show the original service cost of £1,200, the £120 customer discount, and an adjusted amount of £1,080 before any other applicable costs or taxes.

Showing each amount separately helps the customer understand the value of the discount.

What is a fixed discount?

A fixed discount removes a set amount from a product, service, or invoice subtotal. The reduction does not change when the original price changes.

For example, a £40 fixed discount removes £40 from a £300 invoice and also removes £40 from a £1,000 invoice.

Fixed discounts can be useful when a business agrees to a specific price reduction, provides a customer voucher, resolves a service issue, or offers a set promotional saving.

How do you calculate a fixed discount?

To calculate a fixed discount, subtract the agreed discount amount from the original price.

For example, an invoice with a subtotal of £600 and a fixed discount of £75 would have an adjusted amount of £525 before any applicable taxes or additional charges.

The invoice should identify the discount clearly so the customer understands why the amount was reduced.

Fixed discount example

Imagine that a contractor completes work worth £900 and agrees to provide the customer with a £50 discount.

The invoice can show the original service cost of £900, an agreed customer discount of £50, and an adjusted amount of £850.

Unlike a percentage reduction, the discount remains £50 even if the value of the work changes.

When should you use a percentage discount?

A percentage discount may be useful when the reduction should increase or decrease with the value of the purchase. Businesses may use percentage discounts for:

• Seasonal promotions
• Customer loyalty offers
• Bulk purchases
• Repeat customers
• Early payments
• Percentage based sales
• Large customer orders
• Promotions across several products

When should you use a fixed discount?

A fixed discount may be more suitable when the business wants to provide a specific reduction regardless of the original invoice value. Common uses include:

• Customer vouchers
• Agreed price reductions
• Service adjustments
• Customer satisfaction discounts
• Referral rewards
• Set promotional offers
• Small invoice reductions
• Compensation for delays

Which type of discount is better?

Neither discount type is always better. The most suitable option depends on the reason for the reduction, the invoice value, and how much the business intends to remove from the price.

Percentage discounts adjust automatically according to the original cost and can work well across orders with different values. Fixed discounts provide greater control over the exact amount removed.

Before choosing a discount, calculate the final customer price and confirm that the reduction remains suitable for the business.

How should discounts appear on an invoice?

An invoice should clearly identify whether a percentage or fixed discount has been applied. Show the original price, the discount amount, and the adjusted total separately.

For a percentage discount, displaying both the percentage and monetary saving can make the calculation easier to understand. For a fixed discount, show the exact amount removed.

A short description such as loyalty discount, promotional discount, or agreed customer discount can explain why the price was reduced.

Can an invoice include more than one discount?

An invoice can include more than one discount when each reduction is valid and clearly explained. For example, one product may receive a promotional discount while the complete invoice receives an additional customer loyalty discount.

Businesses should check the order in which discounts are applied because applying one reduction after another can produce a different total than combining the percentages.

Review every calculation before sending the invoice to avoid duplicate discounts or an incorrect final balance.

Create an invoice with the right discount

Whether you use a percentage or fixed discount, the invoice should make the original price, saving, adjusted amount, taxes, additional costs, and final balance easy to understand.

InvoiceAtlas allows you to choose between a percentage and fixed discount while creating an invoice. You can review the completed calculation and download the invoice as a professional PDF for free.