Practice Debt

 

One of the most important financial questions a private practice optometrist can ask is:

How much debt can my practice safely support?

This question arises in many situations. A doctor may be purchasing a practice, buying into a partnership, relocating, expanding, purchasing equipment, building out a new office, refinancing existing obligations, or considering the purchase of commercial real estate. In each case, the practice owner may focus first on the loan amount, interest rate, or monthly payment. Those items matter, but they do not answer the more important question: whether the practice has enough reliable cash flow to support the debt without weakening the business.

The amount of debt an optometry practice can support is not determined by revenue alone. A $2 million practice may not be able to support as much debt as expected if margins are weak, staff costs are high, rent is excessive, or owner compensation has not been properly considered. Conversely, a smaller practice with strong margins, efficient staffing, reasonable rent, and stable patient demand may support debt more comfortably than its revenue size would suggest.

Debt capacity is ultimately a cash flow question. A practice can support debt when it generates enough recurring cash flow to pay operating expenses, provide reasonable doctor compensation, maintain working capital, reinvest in the practice, and make scheduled loan payments with an adequate cushion.

• Revenue Is Not the Same as Debt Capacity

Many doctors initially think about debt capacity in relation to gross collected revenue. For example, a doctor may ask whether a $1 million practice can support a $500,000 loan or whether a $2 million practice can support $1 million of debt. While revenue is important, it is only the starting point.

Revenue does not repay debt. Cash flow repays debt.

An optometry practice must first pay cost of goods sold, staff wages, rent, utilities, insurance, marketing, equipment costs, lab bills, technology costs, billing expenses, payroll taxes, professional fees, and other operating expenses. The doctor also needs to earn a reasonable salary for clinical work performed in the practice. Only after these obligations are considered can the remaining cash flow be evaluated for debt repayment.

A practice that collects $1.5 million but has poor expense control may generate less cash flow than a $1.0 million practice with strong margins. This is why lenders focus on normalized cash flow rather than revenue alone.

• The Core Measurement: Debt Service Coverage Ratio

The most common way lenders evaluate debt capacity is through the debt service coverage ratio, often referred to as DSCR.

DSCR measures the relationship between available cash flow and required annual debt payments. The formula is:

Debt Service Coverage Ratio = Available Cash Flow ÷ Annual Debt Service

If a practice generates $300,000 of available cash flow and annual debt payments are $150,000, the DSCR is 2.00x. This means the practice produces two dollars of available cash flow for every one dollar of required debt service.

If the same practice has annual debt payments of $250,000, the DSCR declines to 1.20x. The practice may still technically cover the debt, but there is less cushion for revenue declines, cost increases, patient volume fluctuations, staffing changes, or unexpected events.

A higher DSCR indicates stronger repayment capacity. A lower DSCR indicates greater risk.

• What Is a Reasonable DSCR?

Different lenders have different requirements, and the appropriate DSCR can vary based on the type of loan, borrower strength, collateral, practice history, liquidity, and transaction risk. However, many lenders generally want to see a DSCR comfortably above 1.00x, often in the range of 1.25x or higher as a minimum threshold for many business loans.

For optometry practice financing, a stronger DSCR is preferred because practice performance can fluctuate due to provider availability, payer mix, optical sales, staffing costs, equipment needs, and economic conditions. A DSCR of 1.25x means the practice has a 25% cash flow cushion above required debt payments. A DSCR of 1.50x means a 50% cushion. A DSCR of 2.00x means the practice generates twice the cash flow required to service debt.

A practice with a DSCR of 1.10x may appear to cover debt on paper, but there is very little room for error. A modest decline in revenue, an increase in payroll, a rent increase, a doctor absence, or a decrease in optical capture could quickly create repayment stress.

• Normalized Cash Flow Is the Starting Point

Before determining how much debt a practice can support, the owner must identify normalized cash flow. Normalized cash flow is the practice’s recurring earning capacity after adjusting for unusual, discretionary, non-recurring, or owner-specific items.

For example, normalized cash flow may consider adjustments for depreciation, amortization, interest expense, non-recurring legal fees, unusual repairs, discretionary travel, owner perks, family salaries above market, or one-time expenses. However, these adjustments must be reasonable and supportable.

A practice owner should be careful not to overstate cash flow by adding back expenses that are actually required to operate the business. Lenders will not automatically accept every add-back. If an expense is recurring, necessary, or likely to continue after financing, it should generally remain in the cash flow analysis.

Normalized cash flow must also include realistic doctor compensation. This is one of the most important adjustments in optometry practice financing.

• Doctor Compensation Must Be Considered

A practice cannot support debt simply because the owner is underpaying themselves. If a doctor works full time in the practice but takes minimal compensation, the practice’s reported net income may look stronger than it truly is.

For example, assume a practice reports $250,000 of net income, but the owner only paid themselves $50,000 for full-time clinical work. If a market-level doctor salary is $150,000, then $100,000 of the reported profit may not be true excess cash flow. It may simply represent unpaid doctor labor.

From a lender’s perspective, the practice must support both reasonable doctor compensation and debt repayment. This is especially important in acquisitions, partner buy-ins, and start-up projections. If the buyer cannot earn a reasonable living while repaying the loan, the debt structure may not be sustainable.

A bankable debt structure should not require the doctor to work for below-market compensation indefinitely.

• How to Estimate Debt Capacity

Once normalized cash flow is determined, debt capacity can be estimated by dividing cash flow by the required DSCR.

For example, assume an optometry practice has normalized cash flow of $300,000 and the lender requires a DSCR of 1.25x.

Maximum annual debt service would be: $300,000 ÷ 1.25 = $240,000

This means the practice could theoretically support annual debt payments of up to $240,000 while maintaining a 1.25x DSCR.

If the desired DSCR is more conservative, such as 1.50x, the maximum annual debt service would be: $300,000 ÷ 1.50 = $200,000

This shows how lender requirements and risk tolerance affect borrowing capacity.

The next step is converting annual debt service into a loan amount. The supported loan amount depends on the interest rate and repayment term. A longer repayment term generally allows a larger loan amount because annual payments are lower. A higher interest rate reduces the supported loan amount because more of each payment goes toward interest.

Example: Practice Debt Capacity:

Assume the following:

• Normalized practice cash flow: $300,000
• Required DSCR: 1.25x
• Maximum annual debt service: $240,000
• Loan term: 10 years
• Interest rate: 6.00%

At a 10-year amortization and 6.00% interest rate, annual debt service of approximately $240,000 could support a loan of roughly $1.76 million.

However, this is not necessarily the amount the practice should borrow. It only indicates what the cash flow may support mathematically under those assumptions. A prudent lender and borrower would also consider liquidity, collateral, practice trends, buyer experience, existing debt, personal obligations, market risk, and whether the practice needs additional working capital after closing.

• Loan Term Has a Major Impact on Debt Capacity

The repayment term significantly affects how much debt a practice can support. A $500,000 loan amortized over five years has a much higher monthly payment than the same loan amortized over ten years. As a result, shorter-term loans require stronger cash flow.

This is why equipment loans, acquisition loans, working capital loans, and real estate loans may all produce different debt capacity results. Equipment financing may be structured over five to seven years. Practice acquisition loans may be structured over ten years or longer. Commercial real estate loans may amortize over twenty to twenty-five years. The longer the amortization, the lower the annual debt service, assuming the same rate and loan amount.

However, longer terms are not always better. A longer term may improve cash flow but increase total interest paid. The right structure balances affordability, cash flow protection, asset life, lender requirements, and long-term financial goals.

• Existing Debt Must Be Included

A common mistake is evaluating only the new loan payment. Debt capacity must include all required practice debt payments. Existing equipment loans, acquisition loans, lines of credit, seller notes, credit cards, lease obligations treated like debt, and other fixed repayment obligations all reduce remaining debt capacity.

For example, if a practice has $300,000 of normalized cash flow and already pays $75,000 per year in existing debt service, the new debt must be evaluated after considering the existing debt. The practice does not have the full $300,000 available for new obligations.

Lenders will generally calculate total annual debt service, including existing and proposed debt, and then compare it to available cash flow.

• Global Cash Flow Also Matters

For smaller professional practices, lenders often evaluate both practice cash flow and global cash flow. Global cash flow includes the borrower’s personal income, personal debt obligations, household expenses, other business interests, real estate obligations, and sometimes spousal income or guarantor support.

This matters because the doctor’s personal financial obligations can affect the ability to support the business. A practice may generate enough cash flow, but if the owner has high personal debt, significant student loans, real estate obligations, or lifestyle expenses, the overall repayment picture may be weaker.

Conversely, strong personal liquidity, outside income, or a financially strong guarantor may help mitigate business risk, particularly in start-up or transition financing.

• Liquidity Affects How Much Debt Is Prudent

Debt capacity is not only about whether the practice can make the payment in a normal year. It is also about whether the practice can survive a difficult period. Liquidity provides the cushion.

Practice liquidity includes cash in the business, operating reserves, and available working capital. Personal liquidity includes savings, marketable securities, and other liquid assets available to support the owner or practice if needed.

A practice with strong cash flow but minimal liquidity may still be vulnerable. If collections slow, a key employee leaves, equipment breaks, or revenue declines, the practice may have little room to absorb the disruption. Lenders view liquidity as an important secondary support for repayment

A practice with strong liquidity can often support debt more comfortably than a practice with the same cash flow but no cash reserves.

• Collateral Does Not Determine Debt Capacity

Collateral matters, but collateral does not repay the loan in the ordinary course of business. In optometry financing, collateral may include equipment, inventory, accounts, furniture, fixtures, general intangibles, and goodwill. In real estate financing, collateral may include the office building or condominium.

However, most optometry practice loans are primarily cash-flow loans. Used equipment may have limited liquidation value. Inventory may be difficult to liquidate at book value. Goodwill only has value if the practice continues operating successfully. Therefore, lenders look first to cash flow.

Collateral can improve the risk profile, but it rarely compensates for insufficient cash flow.

• Debt Capacity Is Different for Each Type of Loan

The amount of debt a practice can support depends on the loan purpose.

An equipment loan should be evaluated based on whether the equipment improves productivity, increases revenue, reduces costs, or supports patient care. If the equipment does not generate a return or improve operations, it may reduce cash flow rather than strengthen the practice.

An acquisition loan should be evaluated based on whether the acquired practice’s normalized cash flow supports the debt and provides reasonable doctor compensation. The purchase price must be reasonable relative to cash flow and value.

A partner buy-in loan should be evaluated based on the buyer’s compensation, distributions, ownership percentage, and the practice’s overall cash flow. Governance documents and distribution policies matter because ownership does not automatically guarantee cash flow to the borrowing partner.

A relocation or expansion loan should consider temporary disruption, build-out costs, increased rent, equipment needs, marketing expense, and whether the new location will support higher revenue. Expansion can strengthen a practice, but it can also increase fixed costs.

A working capital loan should be evaluated carefully because working capital is not tied to a single asset. If working capital is used to cover recurring operating losses, it may only postpone a deeper problem. If used to support growth, seasonal timing, start-up costs, or transition needs, it may be appropriate.

• The Danger of Borrowing to the Maximum

A practice may be able to support a certain debt amount mathematically, but that does not mean it should borrow the maximum. Borrowing to the edge of capacity leaves little room for error.

Private practice owners should preserve flexibility. The practice may need future equipment, staff additions, technology upgrades, marketing investment, leasehold improvements, or working capital. If all available cash flow is committed to debt service, the practice may be unable to respond to opportunities or challenges.

Prudent borrowing considers not only whether the loan can be repaid, but whether the practice remains healthy after the loan is made.

• Warning Signs That Debt May Be Too High

Debt may be excessive if the practice must reduce doctor compensation below market to make payments, delay necessary equipment replacement, defer staff hiring, reduce marketing, stretch vendor payments, rely heavily on credit cards, or use personal funds repeatedly to cover operating shortfalls.

Other warning signs include declining revenue, falling gross margins, rising staff costs, high rent, low liquidity, increasing accounts payable, unpaid taxes, aggressive add-backs, or a DSCR that barely exceeds 1.00x.

When these signs appear, the issue may not be the loan structure alone. It may indicate that the practice needs operational changes before taking on additional debt.

• How Practice Owners Can Improve Debt Capacity

Practice owners can increase debt capacity by improving cash flow and reducing risk. This may include increasing revenue per exam, improving optical capture, controlling cost of goods sold, managing staff expense, renegotiating vendor terms, reducing unnecessary overhead, improving recall systems, expanding medical services, strengthening billing processes, and maintaining clean financial records.

Owners can also improve debt capacity by building liquidity, reducing existing debt, maintaining strong personal credit, and preparing accurate financial projections. Lenders respond positively to borrowers who understand their numbers and can explain how the proposed financing will improve the practice.

Conclusion

The amount of debt an optometry practice can support depends on recurring normalized cash flow, realistic doctor compensation, existing debt obligations, loan terms, interest rate, liquidity, collateral, management strength, and the purpose of the financing. Revenue is important, but revenue alone does not determine debt capacity. Cash flow does.

A healthy practice should be able to repay debt while continuing to pay the doctor, support staff, maintain equipment, invest in growth, and preserve a financial cushion. The goal is not to borrow the largest amount possible. The goal is to structure debt in a way that supports the practice’s long-term stability and value.

For private practice optometrists, understanding debt capacity is not just a financing exercise. It is a business discipline. Practices that understand their cash flow, monitor their expenses, maintain liquidity, and borrow strategically are better positioned to grow, weather challenges, and create long-term value for the owner.

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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