Normalizing Cash Flow

 

For many private practice optometry owners, the value of their practice is one of the most important financial questions they will ever face. Practice value affects acquisitions, associate buy-ins, partner buy-outs, retirement planning, estate planning, lender financing, divorce matters, and long-term wealth creation. Yet many doctors misunderstand what actually drives value.

A practice is not valued simply because it has been in business for many years. It is not valued solely because it has expensive equipment, a large patient database, or strong gross revenue. Those factors matter, but the most important driver of value is the practice’s ability to generate sustainable, transferable cash flow.

This is why normalized cash flow is central to business valuation.

Normalizing cash flow is the process of adjusting a practice’s reported financial results to reflect the true economic earning capacity of the business. In other words, it attempts to answer the question: what cash flow would this practice reasonably be expected to generate for a buyer or continuing owner under normal operating conditions?

That question is critical because tax returns and profit and loss statements often do not tell the full economic story. Private practice owners frequently make decisions for tax planning, lifestyle, family employment, retirement funding, equipment timing, or personal preference. Those decisions may be reasonable for the current owner, but they may distort the true recurring cash flow of the practice. A valuation analyst, lender, buyer, or partner must therefore adjust the financial statements to identify sustainable earnings.

Many optometry practice owners initially think about value in terms of gross revenue. They may hear that practices sell for a percentage of revenue or that a certain revenue level implies a certain practice value. While revenue is important, it is not the same as value.

Two practices can each collect $1,000,000 annually and have very different values. One may generate $250,000 of normalized cash flow, while the other generates only $75,000. A buyer can afford to pay more for the first practice because it produces more cash after paying operating expenses and reasonable doctor compensation. The second practice may have the same revenue, but if staff costs, rent, cost of goods sold, doctor compensation, or overhead are too high, the practice produces less economic benefit.

Value follows cash flow, not just collections.

A lender thinks about this the same way. A lender is not repaid from gross revenue. The lender is repaid from cash flow remaining after the practice pays its expenses, supports the doctor, and maintains operations. A buyer thinks similarly. The buyer must determine whether the practice can provide a reasonable income, service acquisition debt, fund working capital, and continue investing in patient care.

For that reason, valuation begins with understanding the practice’s real cash flow.

Normalized cash flow is the practice’s earnings after adjusting reported income for items that are unusual, non-recurring, discretionary, owner-specific, or not reflective of how the practice would operate under a new owner or continuing ownership structure.

The goal is not to artificially increase value. The goal is to estimate the practice’s true recurring economic benefit.

Normalizing adjustments may increase or decrease reported earnings. Some expenses may be added back because they are non-recurring or discretionary. Other expenses may be deducted because the practice has understated a necessary cost, such as fair market doctor compensation, staff replacement costs, market rent, or future operating expenses.

A credible valuation does not simply accept every proposed add-back. Each adjustment must be supported, reasonable, and tied to economic reality.

Private optometry practices often contain several categories of adjustments that affect cash flow. These adjustments should be reviewed carefully because they can materially change practice value.

Owner compensation is one of the most important normalization issues in optometry valuation.

Many owner-doctors pay themselves through a combination of salary, distributions, guaranteed payments, payroll, draws, or other benefits. Some owners underpay themselves to show higher business profit. Others overpay themselves for tax or personal reasons. A valuation must determine what a market-level doctor compensation expense should be for the clinical work required to operate the practice.

For example, assume a practice reports net income of $300,000, but the owner-doctor only paid themselves $50,000 for full-time clinical work. If a replacement optometrist would cost $160,000, the reported income overstates the true economic benefit of the practice by approximately $110,000. A buyer would either need to work in the practice and earn reasonable compensation or hire another doctor. That cost must be reflected.

Conversely, if an owner pays themselves an unusually high salary that exceeds market compensation for the services performed, normalized cash flow may be adjusted upward to reflect reasonable compensation.

The key principle is that valuation cash flow should reflect a realistic cost for the doctor labor required to generate the practice’s revenue.

Associate doctor compensation must also be reviewed. If the practice relies on associate doctors, their compensation is generally a necessary operating expense and should not be added back. A multi-doctor practice may generate higher revenue, but it also requires doctor payroll to produce that revenue.

A valuation mistake occurs when a seller adds back associate doctor compensation as though it were discretionary. If the associate is needed to maintain patient volume, the cost must remain in the normalized earnings analysis.

For example, a $2,500,000 practice may look highly profitable before associate doctor compensation. However, if the practice requires two associate doctors to maintain its schedule, their compensation is part of the cost of production. A buyer cannot simply eliminate that expense without reducing revenue.

Many private practices employ spouses, children, or other family members. These arrangements may be legitimate and necessary, but they must be evaluated.

If a family member is paid above market for the work performed, the excess compensation may be added back. If a family member works in the practice without compensation or below market compensation, an adjustment may need to be made to include the cost of replacing that labor.

For example, if the owner’s spouse manages billing, payroll, and human resources but is not paid, a buyer may need to hire an office manager or billing specialist after closing. If that replacement cost is $60,000 per year, normalized cash flow should be reduced accordingly.

The goal is to reflect what the practice would cost to operate under normal market conditions.

Some practice owners run discretionary expenses through the business. These may include personal auto expenses, travel, meals, cell phones, family benefits, club dues, or other owner-specific expenses. If these expenses are not necessary to operate the practice, they may be added back to normalized cash flow.

However, the add-back must be reasonable. A valuation analyst or lender may question expenses that are not well documented. Simply labeling an expense “personal” does not make it an automatic add-back. The owner should be prepared to support the nature of the expense and why it would not continue under a buyer or normal operating structure.

For example, if the practice pays for a vehicle used primarily by the owner for personal purposes, some or all of that expense may be discretionary. If the vehicle is used for legitimate business travel between multiple locations, the adjustment may be less clear.

Non-recurring expenses are costs that occurred during the historical period but are not expected to continue. These may include one-time legal fees, unusual repairs, consulting fees related to a specific event, relocation expenses, one-time marketing campaigns, litigation costs, or unusual write-offs.

These expenses may be added back if they are truly non-recurring and not part of normal operations.

For example, if a practice incurred $40,000 in legal fees related to a one-time employment dispute, and that issue has been resolved, the expense may be added back. However, if legal fees are recurring because the practice regularly requires legal support, they should not be fully eliminated.

The question is whether the expense is reasonably expected to continue.

Depreciation and amortization are non-cash expenses commonly added back in cash flow analysis. They reduce taxable income but do not represent current cash outflow in the same way as payroll or rent.

However, adding back depreciation does not mean equipment costs can be ignored. Optometry practices require ongoing capital investment. Equipment wears out, technology becomes outdated, and facilities need periodic updates. A sophisticated valuation may consider future capital expenditure needs even if depreciation is added back.

For example, a practice with fully depreciated but outdated equipment may show strong cash flow on paper. A buyer may need to invest in new diagnostic technology after closing. That future investment affects value and should be considered.

Interest expense is typically added back when valuing the practice on a debt-free basis. The reason is that value is generally determined before considering the buyer’s specific financing structure. A buyer’s interest expense will depend on the loan amount, interest rate, term, and capital structure used to purchase the practice.

However, the ability of the practice to service debt remains important from a lender and buyer perspective. Interest may be added back for valuation purposes, but debt service capacity must still be analyzed.

Rent should be evaluated carefully, especially when the practice real estate is owned by the doctor or a related party. If rent is above or below market, normalization may be appropriate.

If the owner charges the practice below-market rent because they own the building, a buyer leasing the space at market rates would experience higher expenses. Normalized cash flow should reflect market rent. If the practice pays above-market rent to a related real estate entity, normalized cash flow may be adjusted upward to market.

For example, if a practice pays $60,000 per year in rent but market rent for the space is $90,000, normalized cash flow may need to be reduced by $30,000. This adjustment can materially affect value.

Occupancy cost should also be evaluated relative to revenue. Excessive rent can reduce practice value because it limits cash flow.

Cost of goods sold is a critical performance area for optometry practices because optical sales are often a major revenue source. If COGS is unusually high, the valuation analyst should investigate whether the practice has poor lab pricing, low gross margins, weak inventory control, excessive discounts, poor frame management, or unfavorable product mix.

Normalization may be appropriate if the historical COGS includes unusual inventory write-offs or one-time vendor issues. However, high recurring COGS should not be adjusted away simply because the owner believes it could be improved. A buyer may improve it later, but valuation usually focuses on current sustainable performance unless there is strong support for an expected change.

Staffing costs often represent one of the largest operating expenses in an optometry practice. A valuation should consider whether staffing levels and compensation are reasonable for the practice’s size and service model.

If a practice is understaffed because the owner is performing administrative duties, normalized cash flow may need to include the cost of additional staff. If a practice is overstaffed or paying above-market wages to related parties, adjustments may be appropriate.

For example, a solo practice may show strong cash flow because the owner personally handles billing, recall, HR, marketing, and management after hours. A buyer may not be able or willing to sustain that workload. If additional staff or management support is needed, normalized cash flow should reflect that cost.

The Income Approach is one of the most common and meaningful valuation approaches for private optometry practices. Under this approach, value is based on the economic benefit the practice is expected to generate.

The Capitalization of Earnings Method, a common income approach method, uses a representative level of normalized cash flow and divides it by a capitalization rate. The capitalization rate reflects the risk and expected return associated with the practice.

For example, if normalized cash flow is $250,000 and the capitalization rate is 25%, the indicated value is $1,000,000. If normalized cash flow is only $150,000 at the same capitalization rate, the indicated value is $600,000.

This demonstrates why normalizing cash flow matters so much. A $100,000 difference in normalized cash flow can create a $400,000 difference in value when using a 25% capitalization rate.

The quality of the normalization analysis directly affects the reliability of the valuation conclusion.

Normalized cash flow is also important under the Market Approach. Market multiples may be applied to revenue, EBITDA, seller’s discretionary earnings, or other financial metrics. If the underlying earnings are not normalized, the market indication may be misleading.

For example, if a market multiple is applied to EBITDA but EBITDA includes understated doctor compensation or inflated add-backs, the resulting value may be overstated. Similarly, a revenue multiple may produce an incomplete picture if the practice has unusually low margins.

A practice with $1,500,000 in revenue and $350,000 of normalized cash flow may deserve a different value than a practice with the same revenue but only $100,000 of normalized cash flow. Market data must be interpreted in the context of profitability and risk.

For valuation purposes, cash flow must be more than historical. It must be reasonably transferable to a buyer or continuing owner.

A practice may have produced strong cash flow under the seller, but if that cash flow depends heavily on the seller’s personal relationships, unique clinical reputation, unusually low compensation, unpaid family labor, or unsustainable hours, the future cash flow may be less reliable.

Transferability is especially important in professional practices. Patients may be loyal to the individual doctor rather than the practice. Staff may be loyal to the seller. Referral sources may depend on personal relationships. If those relationships do not transfer, cash flow may decline after closing.

A strong practice has enterprise goodwill. It has systems, staff, recall processes, branding, patient experience, provider depth, and operating procedures that allow the business to continue beyond the owner.

A weakly transferable practice may still have value, but the risk is higher.

Valuation analysts often review multiple years of financial performance. A single year may not reflect sustainable earnings. The practice may have experienced a temporary disruption, unusual expense, provider absence, revenue spike, or one-time event.

A weighted average may be used to place greater emphasis on more recent years while still considering historical performance. This is especially useful when the practice is growing, declining, or recovering from a temporary event.

For example, assume normalized cash flow was $150,000 three years ago, $175,000 two years ago, $190,000 last year, and $220,000 in the current year. A valuation may give greater weight to the most recent year if the growth appears sustainable.

However, if the most recent year was unusually strong due to a one-time event, placing too much weight on that year may overstate value. The analyst must understand why cash flow changed.

The purpose of weighting is to estimate sustainable future cash flow, not simply to select the highest number.

Normalizing adjustments must be documented. Buyers, lenders, partners, and valuation analysts need evidence supporting the adjustments. Unsupported adjustments reduce credibility.

Useful documentation may include tax returns, profit and loss statements, payroll records, invoices, lease agreements, employment contracts, production reports, vendor statements, compensation schedules, and written explanations from management.

For example, if the owner claims $50,000 of travel expenses are personal, the owner should be prepared to support that claim. If the owner claims a family member is overpaid by $40,000, there should be a reasonable basis for determining market compensation.

The more supportable the adjustments, the more reliable the valuation.

One common mistake is adding back every expense the owner dislikes. Not every expense is discretionary. Some expenses are necessary to operate the practice, even if the owner believes they are high.

Another mistake is ignoring market doctor compensation. This is one of the most frequent causes of overstated value in owner-operated practices.

A third mistake is failing to account for replacement labor. If the owner or a family member performs necessary work without proper compensation, a buyer will need to replace that labor.

Another mistake is relying only on the most recent year. A strong recent year may be encouraging, but it must be evaluated in context. A weak recent year may also require explanation if it was caused by temporary factors.

Owners also make the mistake of confusing tax planning with economic performance. A tax return may be designed to minimize taxable income. A valuation must determine economic cash flow.

Finally, some owners assume that potential improvements should be valued as though they have already occurred. A buyer may be able to improve optical capture, reduce COGS, add medical services, or increase fees. However, unless those improvements are already implemented or highly supportable, they generally represent buyer upside rather than seller value.

Lenders rely heavily on normalized cash flow when evaluating practice acquisition financing, partner buy-ins, equipment financing, expansions, and refinancing. The lender must determine whether the practice can support the proposed debt.

A lender will evaluate whether normalized cash flow can cover annual debt service with an adequate cushion. This is commonly measured through the debt service coverage ratio. If normalized cash flow is overstated, the loan may appear stronger than it truly is. If cash flow is understated, a good transaction may appear weaker than it is.

For example, a practice with $300,000 of normalized cash flow and $150,000 of annual debt service has 2.00x coverage. If normalized cash flow is later determined to be only $200,000, coverage falls to 1.33x. That difference can materially affect the credit decision.

Lenders therefore scrutinize add-backs, doctor compensation, debt obligations, and recurring expenses. A well-supported normalization analysis improves lender confidence.

Owners who plan to sell should begin reviewing normalized cash flow years before the expected transition. Waiting until the year of sale may be too late to correct financial issues.

A seller can improve value by cleaning up financial records, reducing unnecessary discretionary expenses, documenting add-backs, adjusting family compensation, maintaining equipment, improving optical performance, stabilizing staff, and building transferable systems.

For example, an owner planning to sell in five years may discover that staff costs are high, optical capture is low, and doctor compensation is not clearly reported. Addressing these issues early can improve cash flow, strengthen valuation, and make the practice more financeable for a buyer.

Practice value is built before the sale process begins.

Assume an optometry practice reports the following:

• Revenue: $1,200,000
• Net income before taxes: $120,000
• Depreciation: $25,000
• Interest expense: $10,000
• Owner salary paid: $70,000
• Market doctor salary: $160,000
• Personal auto expense: $12,000
• Non-recurring legal fee: $18,000
• Unpaid spouse billing labor replacement cost: $45,000

A simplified normalization might begin with net income of $120,000. Depreciation and interest may be added back, increasing cash flow by $35,000. Personal auto and non-recurring legal fees may add another $30,000. However, the owner salary is below market by $90,000, and the unpaid spouse labor requires a $45,000 replacement cost. Those amounts reduce normalized cash flow.

The calculation would be:

Reported net income: $120,000

Add depreciation: $25,000

Add interest: $10,000

Add discretionary auto: $12,000

Add non-recurring legal: $18,000

Deduct market doctor salary adjustment: $90,000

Deduct replacement billing labor: $45,000

 

Normalized cash flow: $50,000

In this example, the practice looked like it generated $120,000 of income, but after reflecting market doctor compensation and replacement labor, the true transferable cash flow is only $50,000. This would have a major impact on value and financing.

This example also demonstrates why buyers and lenders cannot rely on reported net income alone.

Owners can improve normalized cash flow by increasing revenue, improving optical capture, reducing cost of goods sold, managing staff expense, controlling rent, improving billing, reducing unnecessary overhead, increasing provider productivity, and developing medical services.

They can also improve the quality of cash flow by maintaining clean financial records, separating personal expenses, documenting non-recurring items, compensating family members appropriately, and developing systems that reduce dependence on the owner.

A practice with clean, recurring, well-documented cash flow is easier to value, easier to finance, and easier to transition.

Conclusion

Normalizing cash flow is one of the most important steps in determining the value of a private optometry practice. It converts reported financial results into a more accurate picture of the practice’s sustainable earning capacity. This process is essential because tax returns and profit and loss statements often include owner-specific, discretionary, non-recurring, or non-market items that may distort true economic performance.

For private practice owners, the lesson is clear: practice value is driven by sustainable, transferable cash flow. Gross revenue matters, but cash flow determines whether a buyer can pay the purchase price, whether a lender can finance the transaction, whether a partner can buy in, and whether the owner can achieve long-term wealth-building goals.

A strong normalization analysis should consider owner doctor compensation, associate compensation, family payroll, personal expenses, non-recurring costs, depreciation, interest, rent, staffing, equipment needs, and the transferability of goodwill. Each adjustment should be reasonable, documented, and grounded in economic reality.

Owners who understand normalized cash flow are better prepared to build value, evaluate offers, plan for succession, negotiate with buyers, and obtain financing. More importantly, they are better equipped to manage their practices as financial assets, not just clinical workplaces.

In private practice optometry, the practices with the greatest long-term value are not necessarily those with the highest revenue. They are the practices that consistently convert revenue into reliable, transferable cash flow.

AUTHOR: Ken Ferreira is the President and CEO of Vision One Credit Union and is certified practice appraiser. Vision One Credit Union has been serving private practice optometrists since 1951 reinvesting over $500 million into private practices nationwide.

If you have any questions regarding this information or would like our feedback or assistance in reviewing your agreement, please feel free to contact Ken Ferreira, Chief Executive Officer at kferreira@visionone.org.

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