How to Show a Discount on an Invoice (With Examples)

Quick answer: To show a discount on an invoice, list items at their regular price, then add a clearly labeled discount line, either under a specific item or below the subtotal. Show the reduction as a negative amount, calculate tax on the discounted total in most cases, and state why the discount was given.

Discounts are easy to give and surprisingly easy to show badly. A discount that is hidden inside a lower rate, calculated after tax when it should be before, or added to an invoice that was already sent creates confusion for the customer and for your bookkeeping. This guide covers the main ways to put a discount on an invoice, how tax interacts with it, worked examples with the arithmetic shown, and the wording to use. If you are offering a reward for paying quickly, the mechanics are different; see our separate guide to the early payment discount.

Why show a discount on an invoice at all?

You could simply charge a lower price and say nothing. Showing the discount explicitly is usually better for four reasons:

• It protects your pricing. The client sees your standard rate and understands the reduction is a concession, not your new price.
• It makes removal easy. When a promotional or first-project discount ends, the next invoice simply leaves out one line.
• It keeps tax correct. Tax authorities generally want to see how the taxable value was reached, especially when the discount reduces the tax base.
• It helps your books. Many businesses track discounts given as a separate figure so they can see what promotions really cost.

Types of discount on an invoice

Discounts differ in two ways: what they apply to (one line or the whole invoice) and how they are calculated (percentage or fixed amount). Timing matters too.

Discount type	How it is shown	Best for	Example label
Line-item percentage	On or under the item it reduces	Sale items, bundle deals, items with different tax rates	Desk chair, 15% off
Line-item fixed	On or under the item it reduces	Set reductions on one service	Logo design, $100 first-project discount
Invoice-level percentage	One line between subtotal and tax	Loyalty, volume and order-wide promotions	Discount (10% repeat client)
Invoice-level fixed	One line between subtotal and tax	Goodwill credits, coupons	Discount ($50 goodwill credit)
Early payment (cash) discount	In the payment terms, not deducted up front	B2B clients on credit terms	2/10 Net 30
After-the-fact discount	On a credit note, not the original invoice	Rebates, complaints, volume rebates at year end	Credit note CN-012 against INV-1043

Line-item discount vs invoice-level discount

When to use a line-item discount

Put the discount on the line when only some items are discounted, when items carry different tax rates, or when the client needs to see the net price of each item for their own records. An itemized invoice with a discount on one line might look like this:

• Website design, 1 × $2,000 = $2,000
• Hosting setup, 1 × $300, less 50% launch offer = $150

When to use an invoice-level discount

Use a single discount line under the subtotal when the reduction applies to the whole order, such as "10% off for repeat clients" or "$75 off your next order." It keeps the invoice short and makes the total easy to follow.

Percentage vs fixed discounts

A percentage discount scales with the order: 10% of $500 is $50, while 10% of $5,000 is $500. A fixed discount stays the same whatever the order value. Percentages suit loyalty and volume programs; fixed amounts suit one-off concessions where you want to control exactly what you give away. Whichever you choose, always show the money value of the reduction, not just the percentage, so nobody has to calculate it.

If you are deciding how much discount you can afford, remember that a discount comes straight out of profit, not revenue in general. Our explainer on markup vs margin shows why a 10% discount can cut a thin margin in half.

Is a discount applied before or after tax?

For an ordinary discount the seller gives at the time of sale, the usual approach is to subtract the discount first and charge tax on the reduced amount. That is what most invoicing tools do by default, including ours. But the rules depend on the type of discount and the country:

• United States. Sales tax is set by states and local governments. A seller's own discount generally reduces the taxable price, while manufacturer coupons and some rebates may not, depending on the state. Our guide to sales tax on US invoices explains the basics, and you should confirm your state's rules.
• India (GST). Under section 15(3) of the CGST Act, a discount given before or at the time of supply is excluded from the taxable value if it is recorded on the invoice. Discounts given after the supply can reduce the value only if conditions are met, such as being agreed in advance and linked to specific invoices. See our GST invoice guide for invoice fields.
• United Kingdom (VAT). Since April 2015, VAT on prompt payment discounts is due on the amount the customer actually pays. HMRC allows either a credit note when the discount is taken or specific wording on the original invoice. HMRC's VAT guide (Notice 700) is the starting point for VAT on discounts.

One useful fact: with a single tax rate, a percentage discount gives the same total whether you apply it before or after tax. A fixed discount does not, as the worked example below shows. The tax amount itself also differs, which matters because that is the figure you report.

Worked examples with the arithmetic

All figures below are illustrative. Assume a single sales tax rate of 8%.

Example 1: invoice-level percentage discount

A bookkeeping firm bills a repeat client for 12 hours at $75 and a $300 setup fee.

• Subtotal: (12 × $75) + $300 = $900 + $300 = $1,200.00
• Discount (10% repeat client): 0.10 × $1,200 = −$120.00
• Taxable amount: $1,200 − $120 = $1,080.00
• Tax (8%): 0.08 × $1,080 = $86.40
• Total: $1,080 + $86.40 = $1,166.40

Check: applying the 10% after tax gives $1,200 × 1.08 = $1,296.00, then $1,296 × 0.90 = $1,166.40. Same total, as expected for a percentage discount. But the tax line would show $96.00 before the discount instead of $86.40, which is why the order still matters for reporting.

Example 2: fixed discount, before vs after tax

Same $1,200 subtotal with a $100 goodwill credit.

• Before tax: $1,200 − $100 = $1,100; tax 0.08 × $1,100 = $88.00; total = $1,188.00.
• After tax: tax 0.08 × $1,200 = $96.00; $1,200 + $96 = $1,296.00; minus $100 = $1,196.00.

The difference is $1,196 − $1,188 = $8.00, which is exactly the tax on the $100 discount (0.08 × $100). If the discount legitimately reduces the price, charging tax on the undiscounted amount overcharges the customer by that $8. You can double-check figures like these with the sales tax calculator.

Example 3: line-item discount plus shipping

An online shop sells 3 lamps at $60 with 20% off and 2 shades at $25 at full price, plus $15 shipping.

• Lamps: 3 × $60 = $180; discount 0.20 × $180 = $36; net $144.00
• Shades: 2 × $25 = $50.00
• Subtotal after line discounts: $144 + $50 = $194.00
• Tax (8%): 0.08 × $194 = $15.52
• Shipping: $15.00
• Total: $194 + $15.52 + $15 = $224.52

Whether shipping is taxable varies by jurisdiction; this example treats it as untaxed.

How to word a discount on an invoice

Good discount labels say what the discount is and why. Examples:

• "Discount: 10% repeat client (−$120.00)"
• "First-project discount (−$100.00)"
• "Volume discount, orders over 50 units: 5% (−$62.50)"
• "Goodwill credit for delayed delivery (−$40.00)"
• "Nonprofit rate: 15% off standard fees (−$225.00)"

Add a sentence in the notes when the discount has conditions, for example "This introductory discount applies to the first invoice only." Our collection of invoice notes examples has more wording for terms and conditions.

Early payment discounts are different

An early payment discount is an offer, not a reduction you take up front. You bill the full amount and state the terms, such as "2/10 Net 30" (2% off if paid within 10 days, otherwise the full amount is due in 30 days). If the client pays early and takes the discount, you record the smaller payment and the discount in your books, and in some countries you issue a credit note to adjust the tax. Do not pre-deduct it on the invoice, because you do not yet know whether the client will qualify.

Adding a discount after the invoice is issued

If you agree a discount after sending the invoice, do not edit and resend the original under the same number. Issue a credit note that references the original invoice, shows the discount and any tax adjustment, and reduces the balance owed. Our credit note guide covers the format. Editing issued invoices breaks your numbering and audit trail, and in VAT and GST systems the original may already have been reported.

Common mistakes when showing a discount on an invoice

• Hiding the discount in the rate. Charging $68 an hour instead of showing $75 less 10% makes the discount invisible and your standard rate unclear.
• Taking the discount after tax. For seller-given discounts, this usually overcharges tax and overstates the tax you collected.
• Showing only a percentage. Always show the money amount of the reduction.
• Pre-deducting early payment discounts. Bill the full amount and state the condition instead.
• Discounting twice. Applying a line discount and an order-wide discount to the same item without meaning to.
• Editing a sent invoice. Use a credit note for discounts agreed later.
• Unexplained discounts. A reduction with no label invites questions and makes future full-price invoices look like errors.

Invoice discount checklist

• Items are listed at their regular price.
• The discount is on the correct line, or once below the subtotal for order-wide deals.
• The label states the type, the percentage if any, and the reason.
• The money value of the discount is shown as a negative amount.
• Tax is calculated on the discounted amount where that is the correct treatment.
• Early payment offers appear in the terms, not as a deduction.
• Any conditions or expiry dates are written in the notes.
• Discounts agreed after issue are handled with a credit note.

Adding a discount in our invoice generator

The free invoice generator has one discount field for the whole invoice. You choose a percentage or a fixed amount; the tool subtracts it from the subtotal, applies your single tax rate to the discounted amount, then adds any shipping, exactly like Example 1. For a discount on one item only, enter the reduced rate on that line and write the regular price and offer in the description, such as "Hosting setup (regular $300, 50% launch offer)." Because the generator uses one tax rate per invoice, invoices that mix tax rates need separate invoices or accounting software. The PDF is built in your browser; the tool does not send invoices or track payments. Pick a layout from the invoice templates that leaves the totals block easy to read.