Invoice Koi Download app

A simple example of an invoice you can copy and adapt

An example of an invoice for one small job: line items, dates, payment instructions and a total you can check, then a blank outline to copy and fill in.

Make an invoice free

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An illustration of two matching ruled paper sheets lying one across the other, a rubber stamp, a paper clip and a wax seal, with a koi swimming among them.
01The example

What does an example of an invoice look like?

Here is an example of an invoice: INV-2026-014, asking $185.00 for two hours of labor and one replacement part, due on September 30, 2026. It has every part a simple invoice needs: who it is from and to, a unique number, the dates, the work, the total and how to pay.

INVOICE INV-2026-014
From: [Your business name, address and contact details]
Bill to: [Customer's billing name and address]
Job: Internal door adjustment at [job address]
Service date: September 16, 2026
Invoice date: September 16, 2026
Payment due: September 30, 2026
Currency: USD

Fictional repair job: replace these descriptions and prices
ItemCalculationAmount
Labor: adjust door and test closure2 hours × $75.00$150.00
Replacement part1 × $35.00$35.00
Total dueNo tax in this example$185.00

Payment instructions: Pay $185.00 USD by September 30, 2026 using [agreed payment method and details]. Use INV-2026-014 as the payment reference. For questions, contact [your business email or phone].

The calculation is deliberately easy to check: 2 × 75 = 150; 150 + 35 = 185. If your total differs, look for an extra quantity, a discount or a tax rate before changing the final number. Fix the underlying line so the document still adds up.

It is fictional, with illustrative prices. No tax, deposit or discount applies to its calculation, which is not a claim that your work is tax-free. Use your own business details and the requirements that apply where you trade.

02What each part does

What does each part of an invoice do?

Each part answers a question the person paying will ask: who is this from, what is it for, how much, and by when. Here are the seven in the example above and the job each one does.

The parts of invoice INV-2026-014
PartWhat it is forIn the example
Invoice numberOne bill and no other. Never reuse a number.INV-2026-014
FromWho is asking to be paid, and how to reach them.Your business
Bill toWho owes the money, as they want to be billed.Your customer
DatesWhen the work was done, when you billed, when payment is due.Service, invoice and due date
Line itemsWhat was sold, how many and at what price.Labor and a part
Total dueThe one number the customer pays.$185.00
How to payHow the money reaches you and finds this invoice.Method and reference

The total is the part most often got wrong. Tax, a discount or a deposit already paid each changes it, and each belongs on a line of its own so the customer can see how you got there.

The same parts on a printed invoice

Here is a second, larger example: a fictional job printed by the Invoice Koi app in its Kohaku design. It has three lines, a subtotal, a sales tax line and a total due. The parts sit where a customer looks for them: the number and due date top right, the business top left, the customer under "Bill to", then the lines, the total and "How to pay".

A PRINTED EXAMPLE
An example of an invoice printed by the Invoice Koi app in its Kohaku design: the business and invoice number at the top, the customer under Bill to, three line items, a subtotal, a sales tax line, the total due and bank transfer details.

Fictional business, customer and figures. Whether you charge sales tax, and at what rate, depends on where you work.

If you would rather fill in a form, open the free invoice generator. If the layout is your main concern, browse invoice designs before choosing one. For an example from your own line of work, the plumber invoice template, the electrician invoice template and the photographer invoice template each show a worked job with the lines that trade bills.

03Copy the outline

A blank invoice outline to copy

Paste this outline into your document editor and replace every bracketed field. Keep a blank master separately from the files you send. Duplicating the last customer's invoice is quick, but it also makes it easy to leave their name or payment reference behind.

INVOICE [unique number]
From: [business identity, address, contact details]
Bill to: [customer billing identity and address]
Job or order reference: [reference]
Service date: [date]
Invoice date: [date]
Due date: [agreed date]
Currency: [currency]

[Description] · [quantity and unit] × [rate] = [line amount]
[Repeat for each item]

Subtotal: [amount]
Tax, if applicable: [rate and amount]
Total: [amount]
Payments already received, if any: [amount]
Balance due: [amount]

How to pay: [agreed method, payment details and reference]
Questions: [contact details]

This outline is a starting structure, not a downloadable spreadsheet with formulas. Calculate and check the totals yourself, or use the generator to calculate its line items. For a PDF workflow, follow how to do an invoice for free.

04Adapt to the job

Change the detail to match what you sold

For an hourly service, show hours and the agreed hourly rate. For a fixed-price job, show the agreed scope and one job price. For materials billed separately, give a description and quantity the customer can identify. Do not add a second charge for materials already included in a fixed price.

A customer with several sites needs the job address as well as the billing address. A business customer may need its own order reference. A private customer may care more about the service date and a plain description of the repair. Keep information that helps the payer identify and approve the work.

Keep the invoice with your business records. The IRS recordkeeping guide includes invoices among supporting documents. That guidance concerns records, not a universal US invoice format or sales-tax rule.

The payment date in the example reflects a fictional agreement. Use the date agreed with your customer, rather than treating a sample's two-week interval as a rule. Keep the accepted price and any agreed changes with your job records so you can explain the bill later.

05Before sending

Check the final document, not just the template

Read the PDF from top to bottom once as the customer: is it addressed to the right person, does it name the job, and can they tell exactly how much to pay? Then read it as the person keeping the books: is the number unique, do the lines add up, and does the saved filename match the document?

An invoice requests payment. Sending it does not show that payment has arrived. Keep the payment record when the customer pays and avoid labeling an unpaid invoice “Paid”. If you need to correct an invoice already sent, explain the correction to the customer and retain a record of what changed.

Once the document is ready, use the email template for sending an invoice. A short message naming the job, amount and due date is enough to make the attachment understandable without repeating the entire invoice.

06Questions

The quick answers

What is an example of an invoice?

A bill for one job, like INV-2026-014 on this page: two hours of labor at $75.00 and a $35.00 part, $185.00 in all, due on September 30, 2026, with the payment details and the invoice number to quote when paying.

What should an invoice include?

Who it is from and who it is to, a unique invoice number, the invoice date, a description of the work with quantities and prices, the total due, the due date and how to pay. Any tax you charge goes on a line of its own; whether you should charge it is a question for whoever does your books.

Is an invoice the same as a receipt?

No. An invoice asks to be paid; a receipt confirms that the payment arrived. Do not mark an invoice "Paid" until the money is in your account.

Can I copy this invoice example?

Yes. It is fictional, so replace every bracketed field and every figure with your own, give it a number you have not used before, and check that the lines add up to the total before you send it. The blank outline on this page is the quickest place to start.

While you are here

Put the example to work

Enter your own details in the free browser generator, check the finished document and save your PDF.

Make an invoice free

On Google Play now. Coming soon to iPhone. Have the app? Open it

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Written up for your trade