Dr. Paul Borosky, DBA, MBA
Business Consultant · Accounting and Finance Glossary
How Much Profit Should You Reinvest in Your Business?
A profitable year forces a choice. Pay yourself, pay down debt, build a cushion, or reinvest. Business consultant Dr. Paul Borosky, DBA, MBA, offers a simple order for making that call, explains how to judge whether a reinvestment will pay back, and walks through how an IT services company split its profit.
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 Reinvestment?
How to decide how much: check available cash first, fund taxes and your reserve, pay yourself a fair amount, pay down expensive debt, and then fund only the options with a clear payback, best first.
Had a Good Year and Not Sure What to Do Next?
In Plain English
Putting Profit Back to Work
Reinvestment means putting part of this year’s profit back into the business so it can earn more next year.
A good year brings a hard question: spend it, save it, or put it back into the business? The answer is usually some of each, in the right order.
A Real-World Example
The HVAC Owner Who Trained a Second Technician
An HVAC company in Phoenix, Arizona clears $90,000 in profit. The owner pays the taxes, funds a reserve, takes a fair share, and pays down a loan.
Then she uses $20,000 to train a second technician. The new tech adds billable hours the next summer, and the owner stops working every call herself. For an HVAC contractor, a trained technician is often the reinvestment with the clearest payback.
From Dr. Paul’s Fabled Forest
Alton the Ant and the Best Year Ever
Doctor Owl was at the general store testing reading lamps when Alton the Ant scurried in, antennae twitching.
“Doc, Anthill and Winding Tunnel Tech Solutions just had its best year ever!” Alton said. “I have two ideas. Spend every coin on new gadgets. Or hide every coin in a tunnel.” He paused. “We need an upgrade!”
Doctor Owl clicked off the lamp. “Neither,” he said kindly. He took a price tag from the counter and drew a pie on the back with four slices: Alton’s pay, the rainy-day jar, his debts, and one upgrade that earns its keep.
“Which upgrade earns its keep?” Alton asked.
“The one that stops you from doing every job yourself.”
Alton thought about it the whole way home. That season, he trained an apprentice.
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 asks clients to show how any reinvestment pays back before they spend a coin of it.
Put It to Work
How to Decide How Much to Reinvest
- Check available cash first. Profit on paper is not cash in the bank. Use the lower number.
- Fund taxes and the cash reserve. These come out before anything else.
- Pay yourself a fair amount. A business that never pays its owner is not a business you can keep running.
- Pay down any expensive debt. High-interest debt is often the best return you can get.
- List your options and estimate the payback. How long until each one earns back what it costs?
- Fund only the options with a clear payback. Best first. Hold the rest until next year.
Sample split (illustrative, $90,000 profit with $90,000 of cash available):
| Use | Amount |
|---|---|
| Taxes | $25,000 |
| Cash reserve | $10,000 |
| Owner pay | $30,000 |
| Debt paydown | $5,000 |
| Train a second technician | $20,000 |
| Total | $90,000 |
Watch Out
Pitfalls When Reinvesting Profit
The tax bill and the slow month still come.
New and shiny is not the same as profitable.
An owner who is always broke makes worse decisions for the business.
If demand is not growing, more capacity may just sit idle.
Why It Matters
Benefits of Reinvesting With a Plan
- Growth funded without new debt
- Clearer priorities
- Higher business value over time
- A stronger growth story for lenders
In Your Business Plan
How Reinvestment Shows Up in a Business Plan
Lenders want to know how the business will fund its own growth. A use-of-profits line answers that and shows discipline.
Sample plan excerpt: Growth Strategy, Use of Profits
“Through Year 3, the company plans to retain 30 percent of net profit for reinvestment, focused on technician training and equipment with a payback of under 18 months.”
FAQ
Questions Owners Ask About Reinvesting Profit
What percentage of profit should be reinvested?
Is reinvesting profit tax deductible?
Should I reinvest or pay down debt first?
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.


