What a CFO Does During a Business Acquisition (Step-by-Step)
By: Ironclad Accounting + Finance | News | May 21, 2026In any acquisition, the CEO handles the vision, but the CFO handles the reality. While a deal is often struck based on the potential of a merger, the transaction is finalized by verifying the data. The role of the CFO is to act as the architect of the deal, ensuring the business you think you are buying is the one that actually shows up after the papers are signed.
Step 1: Normalizing the Profit
The first move is moving from reported profit to normalized profit. A standard tax return is designed to show as little profit as possible to minimize taxes. During an acquisition, the CFO does the opposite: they look for the true economic power of the business.
This involves looking for add-backs. These are personal expenses the current owner runs through the business that a new owner will not have to pay. This includes things like personal travel, family members on the payroll who do not actually work, or one-time legal fees. The CFO also looks for hidden costs, such as a founder who is not taking a market-rate salary. By normalizing these numbers, the CFO finds the true cash flow of the business so the buyer does not overpay for the seller’s lifestyle.
Step 2: Hunting for Hidden Debts
When you buy a company, you often inherit its history, including its financial mistakes. The CFO performs a forensic audit to find successor liability—debts that are not on the balance sheet yet but could become a major problem later.
- The Sales Tax Trap: Many businesses sell products across the country but only pay sales tax in their home state. This can create a massive, unpaid tax bill that the new owner might be responsible for after the deal closes.
- The Information Gap: The CFO checks how the company stores sensitive data. If they are using standard, unsecure email to store client financials, the cost to fix those systems must be accounted for immediately to avoid regulatory trouble.
Step 3: Stress-Testing the Capital Structure
A deal only makes sense if the profit from the new business is higher than the cost of the money borrowed to buy it. The CFO calculates the cost of capital to ensure the company remains healthy even after taking on new debt.
A critical part of this step is ensuring there is a liquidity buffer. This is a backup pile of cash. If the business has a slow first year after the transition, which is common, the CFO ensures there is enough cash on hand to keep the lights on without breaking agreements with the bank.
Step 4: Negotiating the Working Capital Peg
This is one of the most important tactical moves a CFO makes. The peg is a specific amount of cash, inventory, and unpaid customer bills that the seller must leave in the business at the time of the sale.
Without this agreement, a seller might take all the cash out of the bank or stop paying the business’s bills right before they hand over the keys. By setting a peg based on how the business usually runs throughout the year, the CFO ensures the new owner has enough oxygen to run the company on day one without having to put more of their own money in right away.
Step 5: Integration and the First 100 Days
The moment the deal closes, the CFO begins the migration of the financial nervous system. Most small businesses use simple cash accounting, where money is only recorded when it hits the bank. To be taken seriously by major investors or lenders, a business needs to move to accrual accounting, which tracks income and expenses when they actually happen. The CFO spends the first 100 days unifying the payroll and the software so the new owner has a clear, professional dashboard of the company’s health.
