Commercial Lending Underwriting: The Complete Credit Analysis Process

Commercial underwriting is a written argument. The analysis is not finished when the ratios are calculated; it is finished when a reader who has never met the borrower can follow the reasoning from the financial statements to the recommendation and understand what would have to go wrong for the loan to fail.

This is the process in the order it is actually performed.

Step 1: Understand the Request Before Touching the Numbers

Three questions, answered before any spreading begins.

What is the money for? The use of proceeds determines the correct structure. Working capital needs a revolving line sized to the operating cycle. Equipment needs term debt amortized over the asset's useful life. Real estate needs long-term financing. Financing a long-term asset on a line of credit is the most common structural error in commercial lending, and it produces an evergreen line that never cleans up because the cash went into something that does not turn over.

What repays it? Every credit has a primary repayment source and should have a secondary. Primary is almost always operating cash flow. Secondary might be collateral liquidation, guarantor support, or refinancing — but a credit whose primary source is "sale of the collateral" is not a loan, it is a bet on an asset price.

What is the business, actually? Industry, competitive position, customer concentration, supplier concentration, seasonality, cyclicality, and who runs it. An analyst who cannot explain in three sentences how the business makes money cannot assess whether the projections are plausible.

Step 2: Spread the Financial Statements

Spreading normalizes multiple years of financials into a comparable format. Three years is the standard minimum, with interim statements for the current period.

What to look for while spreading, rather than after:

Revenue trend and its composition. Growth from volume, price, or acquisition are different stories with different sustainability.

Margin behavior. Gross margin compression while revenue grows usually signals price competition or input cost pressure the borrower has not passed through.

Balance sheet velocity. Accounts receivable growing faster than sales means collections are deteriorating or revenue is being recognized aggressively. Inventory growing faster than sales means obsolescence or a demand miss. Both consume cash that the income statement does not show.

Accounts payable stretching. Trade creditors financing the business is a liquidity warning that appears well before the bank sees a payment problem.

Quality of the statements. Audited, reviewed, compiled, or internally prepared — and tax returns as a cross-check. The gap between what a borrower's tax return and financial statement say about income is frequently the most informative number in the file.

Step 3: Analyze Cash Flow

Net income is not cash. Traditional cash flow — net income plus depreciation and amortization — is a rough proxy that ignores working capital swings, and it overstates capacity for a growing company.

Uniform Credit Analysis builds cash flow properly: from sales through operating profit, adjusting for changes in receivables, inventory, and payables, then for capital expenditures, financing, and distributions. It answers the question that matters — after funding its own growth, what cash does this business have available to service debt?

Debt service coverage divides cash flow available for debt service by required principal and interest, including the proposed loan and any other obligations. The specific minimum is set by loan policy and varies by loan type and collateral, but the number matters less than what is in the numerator. Coverage computed on an unrepeatable gain, or before owner distributions the owner will certainly continue taking, is not coverage.

Stress the coverage. What happens at a lower revenue level, a compressed margin, a higher rate on the variable-rate portion, or the loss of the largest customer? A credit that only works at current conditions is a credit with no margin for error, and stating the breakeven explicitly is more useful than any single ratio.

Step 4: Global Cash Flow

For closely held businesses, entity-level analysis is incomplete. Global analysis combines the operating company, affiliated entities, and the owners personally.

Why it matters: owners commonly hold real estate in a separate entity that leases to the operating company, carry personal debt serviced by distributions, or own a second business that is losing money. Any of those can consume the cash the bank is counting on.

Global analysis requires personal financial statements and personal tax returns from the guarantors, and a schedule of all related entities with their debt. Institutions that skip this on smaller credits are the ones surprised when a profitable business cannot pay because the owner's other venture is absorbing the cash.

Step 5: Assess Collateral

Collateral is a secondary repayment source. It does not fix a cash flow problem — it limits the loss when the cash flow problem becomes a default.

For each collateral type, three questions: what is it worth, how confident are we in that value, and what will it cost and take to realize?

• Accounts receivable — aging, concentration, dilution from credits and returns, and whether the account debtors are creditworthy
• Inventory — raw, work-in-process, or finished; commodity or specialized; obsolescence risk; and what it fetches in a liquidation rather than on the balance sheet
• Equipment — general purpose or specialized, with orderly liquidation value rather than book value
• Real estate — appraisal, with attention to whether the value depends on the current occupant's use
• Advance rates discount all of these for exactly these reasons

Perfection is a separate question from value: an unperfected security interest in valuable collateral is worth nothing in a bankruptcy.

Step 6: Evaluate Guarantors

A guaranty is worth the guarantor's liquidity and willingness. Assess net worth, liquidity specifically — real estate equity is not available to make a payment next month — contingent liabilities including other guaranties, and the guarantor's own debt service obligations.

Also consider whether the guaranty is enforceable in practice: a guarantor whose only asset is the equity in the borrower is providing moral commitment rather than a repayment source, which has real value but should not be counted twice.

Step 7: Structure the Credit

Structure is where the analysis becomes a loan.

Facility type matched to purpose. Amortization matched to asset life. Advance rates and borrowing base where collateral turns. Covenants that measure the specific risks the analysis identified — a minimum coverage covenant on a cash-flow-driven credit, a leverage covenant where the concern is over-borrowing, a distribution limit where the owner's draws are the risk. Reporting requirements frequent enough to see a problem developing. Pricing reflecting the risk rating and the relationship.

Covenants should be chosen, not copied. A covenant package lifted from a template measures whatever the template measured, which is rarely the risk in front of you.

Step 8: Risk Rate and Write It Up

The risk rating drives pricing, allowance, and reporting, and it must be supportable on the file's own facts.

The credit memo is the deliverable. A good one states the request and use of proceeds, the business and its context, the financial analysis with the actual numbers, the primary and secondary repayment sources, the risks and the specific mitigants, the proposed structure with the rationale for each element, exceptions to policy and why they are recommended, and a clear recommendation.

The test of a credit memo is whether a reader can identify what would have to happen for the loan to fail — and whether the writer named that scenario themselves. Analysts who write only the positive case produce memos that read well and teach nobody anything, including the credit committee.

Structured coverage is available through our Commercial Lending course, the Business Credit Analysis Bootcamp, Analyzing Business Financial Statements and Tax Returns, and the Certificate in Business and Commercial Lending.

What Separates Strong Analysts

Three habits, none of which are technical.

They call the borrower. The financial statements raise questions that only the owner can answer, and the answers frequently change the analysis. An analyst who works entirely from documents is guessing at the parts that matter most.

They write the risks first. Starting the memo with what could go wrong, before writing the recommendation, prevents the analysis from being constructed backwards from a conclusion someone in production has already reached.

They track their own credits. Analysts who follow the loans they underwrote — which ones downgraded, which covenants got breached, which risks they named and which they missed — develop calibrated judgment in two years. Analysts who hand the file off and move on take a decade to learn the same thing, if they learn it at all.

Working With Production Rather Than Against It

The relationship between credit and production is the most consequential dynamic in commercial lending, and it is rarely addressed in technical training. Analysts who handle it well approve more good loans and decline fewer of them late.

Three practices do most of the work.

Engage before the memo is written. A lender who learns in the credit memo that the structure will not work has already told the borrower something else. An analyst who raises the structural issue during the initial conversation — this needs to be a term loan, not a line; this needs a coverage covenant; this needs updated guarantor financials — lets the lender manage the borrower's expectations while there is still room to.

Distinguish the deal-breaker from the condition. Not every weakness is a decline. Insufficient collateral can be addressed with a guaranty, a lower advance rate, or additional pricing. Thin coverage can be addressed with a longer amortization or a distribution restriction. An analyst whose only outputs are approve and decline is less useful than one who can say what would have to change.

Write the risks in the borrower's language. A credit memo that describes a "receivable concentration exceeding policy thresholds" tells a committee less than one saying "sixty-two percent of revenue comes from one customer whose contract renews in fourteen months." The second version can be discussed; the first invites a policy argument.

The cultural point underneath this is that credit and production have the same interest and different incentives. Both want loans that perform. Production is measured on volume in the current quarter, and credit is measured on losses that appear two years later — which is precisely why the institution separates the functions. Analysts who understand that the tension is structural rather than personal stop taking pushback as a challenge to their judgment and start treating it as information about what the borrower actually needs.

Where the tension becomes a problem is when it goes unresolved and unrecorded. Credits approved over documented credit objection are legitimate — boards and senior officers are entitled to accept risk the analyst would not — but the objection should be in the file. Institutions that record dissent learn from their loss history. Institutions where the memo is rewritten until it supports the decision learn nothing, and repeat the same mistake with a different borrower.

Frequently Asked Questions

What is the difference between traditional and UCA cash flow?

Traditional cash flow adds depreciation and amortization back to net income, ignoring working capital changes. Uniform Credit Analysis builds cash flow from sales through operating profit while adjusting for changes in receivables, inventory, and payables, then for capital expenditures and financing. UCA is materially more accurate for growing companies, where growth consumes cash the income statement does not reveal.

Why is global cash flow analysis necessary?

Because closely held businesses and their owners share cash. Owners commonly hold real estate in an affiliated entity, carry personal debt serviced by distributions, or own a second business absorbing cash. Entity-level analysis can show adequate coverage while the combined obligations of the borrower, affiliates, and guarantors do not support the debt.

What debt service coverage ratio is acceptable?

Loan policy sets the minimum, and it varies by loan type, collateral, and industry. What matters more than the threshold is the quality of the cash flow in the numerator — coverage calculated on a non-recurring gain, or before owner distributions that will certainly continue, overstates capacity regardless of how strong the ratio looks.

Is collateral a substitute for cash flow?

No. Collateral is a secondary repayment source that limits loss severity when a credit defaults; it does not create repayment capacity. Credits approved primarily on collateral value are disproportionately represented in workout portfolios, because liquidation is slow, expensive, and realizes less than appraised value.

How should covenants be selected?

By reference to the specific risks the analysis identified — coverage covenants where cash flow is the concern, leverage covenants where over-borrowing is, distribution limits where owner draws are, and reporting requirements frequent enough to see deterioration early. Copying a covenant package from a template measures the template's risks rather than the borrower's.

What makes a good credit memo?

One that lets a reader who has never met the borrower follow the reasoning from the financials to the recommendation, and that names explicitly what would have to happen for the loan to fail. It should state the request and use of proceeds, the business context, the analysis with real numbers, primary and secondary repayment, risks with specific mitigants, the structure and why, any policy exceptions, and a clear recommendation.