Attention New CFOs and Controllers: A Superhero in Sales Tax

Last Updated on July 27, 2026

Stepping into a new CFO or controller role comes with immediate pressure to make an impact. You are expected to improve cash flow, strengthen financial controls, reduce unnecessary expenses, and identify opportunities that may have been overlooked by the previous leadership team.

One of the fastest and most practical ways to deliver measurable financial value may already be hiding in your company’s accounting records: overpaid and over-accrued sales and use tax.

A sales & use tax refund review (AKA reverse audit) can help a new financial leader identify historical tax overpayments, generate cash refunds, correct recurring problems, and improve processes moving forward. Better yet, the review can often be performed on a success-based, budget-neutral basis.

Your Opportunity to Uncover Hidden Revenue

Sales and use tax is commonly treated as a routine accounts payable function. A vendor charges tax, the invoice is approved, and the payment is processed. Because each individual tax charge may appear relatively small, the cumulative financial impact can easily go unnoticed. Over several years, however, a company may overpay substantial amounts of sales tax for a variety of reasons: conservative approach, lack of exemption certificate, new vendor or changes in state tax law. When in doubt, the vendor will always charge sales tax and the buyer will always pay sales tax.

Common opportunities include:

• Manufacturing machinery, equipment, repair parts, and consumables that qualify for an exemption
• Electricity, natural gas, or other utilities used in an exempt production process
• Software used by employees located outside the taxing state
• Software-as-a-service charges that were taxed incorrectly
• Packaging materials that become part of the final product sold to customers
• Research and development equipment or supplies
• Freight, installation, maintenance, and professional services that may have been improperly taxed
• Duplicate tax payments or use tax accrued on purchases where tax was already paid
• Tax accrued internally on transactions that were exempt

Most companies have a good handle on sales tax, but a natural error rate exists. When millions of dollars are spent over the course of three to four years, a simple missed exemption can lead to sizable refunds. Sales & use tax laws are complicated, vary significantly by state, and are frequently misunderstood by vendors. Even a strong AP department may process thousands of invoices without having the resources to evaluate the taxability of every line item. For a new CFO or controller, this creates an opportunity to uncover value without changing the company’s products, increasing prices, reducing headcount, or making a major capital investment.

Recovering Cash from Prior Years

Most states allow companies to recover sales and use tax overpayments from the prior three to four years. (Missouri has a ten-year statute for refunds.) Depending on the company’s purchasing volume, industry, and geographic footprint, a review of historical transactions may produce a meaningful refund. The process generally begins with an analysis of accounts payable data, fixed asset purchases, expense categories, utility bills, software spend, and accrued use tax.

Potential overpayments are then researched, documented, and included in refund claims filed with vendors or state taxing authorities. For a new financial leader, the resulting refund can represent an early and highly visible success. It is tangible, measurable, and directly improves cash flow. Unlike a theoretical cost-saving initiative, a sales and use tax recovery project can produce actual dollars returned to the business. If anything, it is a good business practice as a nominal error rate can still lead to six-figure savings, in addition to “fixing the problem” moving forward.

Process Improvement

The value of a sales and use tax review should not end when the refund check arrives. A thorough review also identifies why the company overpaid tax in the first place. The problem may involve an incorrect vendor setup, an outdated exemption certificate, a purchasing-card process, an accounts payable coding issue, or an overly conservative use tax accrual procedure. Once those causes are identified, the company can implement corrective measures such as:

• Updating vendor tax instructions
• Issuing or renewing exemption certificates
• Improving accounts payable review procedures
• Adjusting use tax accrual rules
• Training purchasing and accounting personnel
• Separating taxable and exempt charges
• Allocating software costs to users in different states
• Establishing a process for reviewing large or unusual purchases
• Monitoring utility exemptions and manufacturing usage

These improvements help prevent the company from continuing to overpay tax after the historical review is complete. The result is a two-part benefit: cash recovery from prior years and ongoing savings in future periods.

A Success-Based and Budget-Neutral Initiative

New CFOs and controllers often inherit budgets that have already been established. Even when a project could generate savings, obtaining approval for additional consulting costs may be difficult. A success-based sales and use tax review removes much of that obstacle. Under a contingency-based arrangement, the company does not pay a traditional upfront consulting fee. Compensation is based on a percentage of the tax actually recovered or credited. If no refund is obtained, there is no billable event. This makes the project budget-neutral and financially aligned with the company’s interests. The review can be initiated without requesting a major budget allocation, and the fee is paid from newly-recovered funds rather than existing operating resources. The company retains the majority of the refund while also benefiting from improved procedures moving forward.

Make an Impact Without Disrupting the Business

A well-managed sales and use tax review should require limited involvement from the company’s internal finance team. The reviewer analyzes purchasing data, researches potential exemptions, prepares supporting documentation, assists with refund claims, and helps respond to questions from vendors or state agencies. This allows the CFO, controller, and accounts payable team to remain focused on their primary responsibilities.

For a recently appointed financial leader, the review offers a rare combination:

• Potential cash recovery
• Improved future cash flow
• Stronger financial controls
• Reduced compliance risk
• Minimal disruption
• No upfront budget requirement

Becoming the financial superhero in your organization does not always require a dramatic restructuring or a major new initiative. Sometimes it begins with examining what the company has already paid. A sales and use tax review can uncover hidden cash, stop recurring overpayments, and demonstrate immediate financial leadership. The opportunity may already be sitting in your accounts payable records.

Interested in a Sales & Use Tax Refund Review?

Since 1999, TaxMatrix has been a leader in sales and use tax recovery for clients nationwide. If you would like to set up a consultation to see if your company might be a good candidate for a success-based tax review, contact us today!