The definition, and the arithmetic behind it
Debt service coverage compares annual cash flow available for debt service against annual debt service, meaning principal plus interest on all borrowings. Take a business whose adjusted cash flow for the year is $300,000, with total principal and interest payments of $240,000 across a term loan and equipment financing. Divide one by the other and the ratio is 1.25: for every dollar of payments the business generated a dollar and a quarter of cash. Below 1.00, the business did not earn its payments and something else funded them.
Now run the same business through a stricter definition. Deduct $45,000 of cash taxes actually paid and $40,000 of equipment the business must replace to keep operating, and cash available falls to $215,000. Against the same $240,000 of payments, the ratio is 0.90 and the file is declined. Nothing about the business changed. The only thing that moved was which costs the lender considers to come ahead of them, and that is why the definition in your credit agreement is worth more attention than the target.
Lenders test the ratio twice. At underwriting they calculate it on the trailing twelve months, then again on the proposed debt including the new loan, which is the calculation that actually decides the approval. After funding, the covenant is normally tested annually on your year-end statements, sometimes quarterly on a rolling twelve-month basis. Passing at approval and failing in year two is common, and it is a default even when every payment has cleared.
The numerator is the negotiation
Ask any lender for their definition of cash flow and you will get a different sentence, which is exactly why you should ask in writing. Some start from EBITDA. Some start from net income and add back non-cash charges and interest. Some deduct cash taxes, some deduct maintenance capital spending, and some deduct owner dividends and draws. Each version is defensible. Each produces a different ratio from identical statements.
| How the lender defines the cash flow | What it counts | Effect on your ratio |
|---|---|---|
| EBITDA | Earnings before interest, tax, depreciation and amortization | The most generous version, and the one that ignores the tax and equipment you actually pay for |
| EBITDA less cash taxes | Recognizes that CRA is paid before lenders are | Falls by whatever the corporation actually remitted, which surprises owners who bonus down instead |
| Less maintenance capital spending | Subtracts the equipment needed just to hold revenue steady | The honest version for asset-heavy businesses, and the harshest for contractors and manufacturers |
| Net income plus non-cash items | Starts at the bottom line rather than at EBITDA | Penalizes discretionary owner bonuses unless they are formally added back |
| Less owner draws and dividends | Treats owner pay as a cost the business cannot avoid | Common where the lender doubts the owner can live on less, and it usually costs a tenth of a point or more |
| Global coverage | Business cash flow plus household income, against business and personal debt | The version most owner-managed files are really tested on once guarantees are signed |
Two add-back arguments are worth making early. Owner compensation above what a hired manager would cost is discretionary and belongs in the numerator, provided you can live with the constraint the lender will attach to it. Genuinely non-recurring costs belong there too, with evidence: an invoice, a settlement, a system implementation. What does not survive is an add-back that reappears every year. How each of these gets treated during the spread is covered in how banks evaluate business financial statements.
The denominator counts more than your loan payments
Debt service is every committed repayment, not the one facility you are discussing. It normally includes the current portion of long-term debt plus interest, capital lease payments, equipment financing, and interest on the operating line. Where a shareholder loan is being repaid on a schedule, some lenders include that too, and others require it be postponed so the payments stop. If you are asking for new money, the new payments are annualized into the denominator even though you have not made one yet.
One feature of the denominator explains why the ratio is stricter than owners expect. Interest is deductible, principal is not: repayment comes out of after-tax dollars. A business with a large principal component is spending pre-tax earnings well above the payment amount to make it, which is why definitions that deduct cash taxes from the numerator are more reasonable than they first appear. It is also why extending amortization improves coverage so quickly, since it moves the payment mix towards interest and away from principal.
Operating leases sit in a useful grey area. Because the payments are already inside your operating expenses, they reduce EBITDA rather than appearing in debt service, whereas a capital lease shows in both places. That difference means a lease-versus-buy decision quietly moves your covenant maths, and it is worth checking against your credit agreement before signing an equipment deal.
Global coverage: when the bank adds your household to the test
In owner-managed lending the ratio is often calculated globally. The lender combines the operating company, the property company that owns your building, any holding company in the group, and in many cases your personal income and personal debt, because you have guaranteed the loan and the risk is not really separated. A comfortable business ratio can fail once a personal mortgage, an investment property and a car loan are added.
Two structural facts drive the global calculation. Rent paid between your operating company and your own property company is restated to market, so paying yourself generous rent to move cash into the holding company can weaken business coverage while improving nothing in the lender view. And dividends taken out of the operating company to service personal debt are counted where the household needs them, meaning the same dollar cannot be both retained cash flow and your mortgage payment.
This is where the owner-pay decision meets the financing decision. The lowest-tax compensation mix is frequently the one that makes the personal side of a global test look weakest, because dividends and retained profit report differently than salary does. Deciding that in isolation is how a good tax plan becomes a financing problem twelve months later.
How the ratio gets improved before the test, not after
Coverage responds to a handful of levers, each with a cost:
- Extend amortization or refinance short-amortization debt: the fastest and largest improvement, at the price of more total interest over the life of the loan
- Term out an operating line balance that never revolves: it converts a permanent working capital gap into scheduled debt, which is cleaner but adds principal to the denominator
- Reduce owner draws in the test period: effective and verifiable, and painful if the household depends on them
- Defer discretionary capital spending past the measurement date: legitimate for timing, useless if the equipment is genuinely needed
- Document add-backs before year-end: the least costly lever, because it changes what the analyst is allowed to count rather than what you spend
- Fix the definition in the agreement: negotiate the add-back list, the test frequency and a cure right when the credit is first written, when you have the most leverage
What does not work is discovering the number after the statements are filed. The covenant is tested on figures you have already reported, so the only window to influence it is before the year closes. Calculating your own coverage each quarter, on the lender formula rather than a generic one, turns a covenant breach into a conversation you start rather than a letter you receive.
What changes the answer, and how we handle it
Five facts decide what your ratio actually is:
- The exact definition of cash flow in your agreement: EBITDA, after tax, after capex or after draws, each version is a different business
- How much of your payments are principal: it is paid with after-tax dollars, so amortization length moves coverage more than the interest rate does
- Whether the test is global: personal debt, guarantees and the property company can carry the whole result
- The stability of earnings: a lender will accept a lower ratio from a predictable business and demand more from a volatile one
- Timing: a large purchase, a bonus or a slow quarter landing just before the measurement date can decide a covenant on its own
We calculate coverage the way your lender does, using their words, and we do it during the year rather than after it. That means a quarterly reading, a clear view of how a planned purchase or bonus will move it, an add-back schedule supported by documents, and forward coverage built into the projections a lender will test against, prepared as set out in how to prepare financial projections for a business loan. Delivering business financing and projections as a CPA in Ontario mostly means removing surprises from this one ratio.
If a renewal is approaching or a covenant looks tight, the useful move is to model it now, while capital spending, compensation and timing are all still decisions. Our approach to lender work is described in business financing support for owner-managed businesses, and Financing & Lender Support covers the engagement itself. A free 15-minute discovery call is enough to find out where your number sits.
