Dr. Paul Borosky, DBA, MBA
Business Consultant · Accounting and Finance Glossary
How to Write an Invoice That Gets Paid
Dr. Paul Borosky, DBA, MBA, has watched good businesses run short of cash simply because invoices went out late or unclear. As a business consultant, he treats the invoice as part of the job, not paperwork after it. This guide covers what every invoice needs, when to send it, and the wording that speeds up payment.
Questions? Call or text (321) 948-9588. Dr. Paul answers personally.
Last Updated: 11/07/2026 · Written by Dr. Paul Borosky, DBA, MBA
The Short Answer
What Is an Invoice?
How to write one: list your business and the customer, give it a number and a date, describe each line of work with a price, show the total, and state the due date and how to pay. Then send it the day the job is done.
Finished the Work but Still Waiting on Money?
In Plain English
The Bill, Done Right
An invoice is the bill. What you did, when you did it, what it costs, and when it is due.
The job is done, but the money is not in. An invoice that goes out late, or that leaves the customer with questions, is the most common reason.
A Real-World Example
The Painter Who Billed When He Got Around to It
A painting contractor in Winter Garden, Florida finishes jobs on Friday and sends invoices when he gets to it, often two or three weeks later. Customers pay late because they were billed late.
He starts invoicing from his phone the day each job ends, with a pay-online link on every invoice. The average wait for payment drops by weeks. Most contractors and trades can make the same switch in a single afternoon.
From Dr. Paul’s Fabled Forest
Blueprint Bella and the Perfect Bills
Doctor Owl was at the hardware store comparing two brass hinges when Blueprint Bella stomped in, sawdust on her whiskers.
“Three dams finished,” she said. “Zero coins.”
“Did you send the bills?” Doctor Owl asked.
Bella crossed her arms. “Not yet. Each one has to be perfect first. Measure twice, cut once, measure again.”
Doctor Owl set down the hinges and pulled a plain scroll from his satchel. It had seven lines: Bella’s name, the customer’s name, a number, the date, the work and its price, the total, and the day the coins were due.
“Measure the job twice,” he said. “Bill it once. Today.”
By sundown, three scrolls were on their way from Bella’s Dam Decent Builds. By the end of the week, the coins came back.
From Book 2 of Dr. Paul’s Fabled Forest Business School Series, where every business lesson starts with a story.
Dr. Paul’s Insight
Dr. Paul’s rule: the invoice goes out the day the job is done. Every day you wait is a day you lent the customer money for free.
Put It to Work
How to Write an Invoice
- Your business details. Name, address, phone, and logo.
- The customer’s details. Name and billing address.
- An invoice number and date. Number them in order so nothing gets lost.
- Line items. What you did, quantity, rate, and amount, in plain words.
- Subtotal, tax if any, and total due. Make the total impossible to miss.
- Payment terms and due date. For example, due in 15 days, with the actual date written out.
- How to pay. A payment link, check address, or bank transfer details. More than one way is better.
Watch Out
Pitfalls When Invoicing
Late bills get paid late. Send it the day the work is done.
If the customer has to ask what a charge is for, payment waits for the answer.
Without a date, the customer decides when to pay.
Every extra step between the customer and paying slows the money down.
Why It Matters
Benefits of Clear, Fast Invoicing
- Faster payment
- Fewer disputes
- Cleaner accounts receivable
- Better cash flow forecasts
In Your Business Plan
How Invoicing Shows Up in a Business Plan
Lenders want to know how quickly sales turn into cash. A billing routine in the plan answers that in a few lines.
Sample plan excerpt: Operations, Billing
“Invoices are issued the day each job is completed through QuickBooks, with payment due in 15 days and online card and ACH payment available. Past-due accounts receive reminders at 3, 10, and 20 days.”
Keep Learning
Related Lessons
FAQ
Questions Owners Ask About Invoicing
What should be included on an invoice?
When should I send an invoice?
What is the difference between an invoice and a receipt?
More From the Series
Keep Building Your Business
Every book in Dr. Paul’s Fabled Forest Business School Series teaches one subject through short stories, real terms, and one-page worksheets.
Dr. Paul Borosky, DBA, MBA
Dr. Paul is a business consultant and author with 14+ years of experience and 1,000+ written business plans. He works with owner-run small businesses on plans, financial projections, and the systems that let a business run without the owner doing everything. This page is part of the glossary for Accounting and Finance for Small Businesses, Book 2 of Dr. Paul’s Fabled Forest Business School Series.
This page is for general educational purposes only. It is not tax, legal, accounting, or other professional advice. For decisions about your own business, consult a qualified professional.