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DSCR compares cash available for debt service with required principal and interest payments. Work through a business example, distinguish cash-flow and EBITDA conventions, and reconcile the result to the repayment schedule.
DSCR, the debt service coverage ratio, measures cash available for debt service against the required payments for the same period. A business with $360,000 available and $300,000 of scheduled principal and interest has coverage of 1.20 times. Start with the financing agreement: the numerator, covered obligations and testing period determine what that ratio means.
DSCR = Cash available for debt service / Required debt service
Required debt service = Included principal payments + Included interest payments
The numerator is a period flow. The denominator is the payments required over that period, rather than the outstanding balance of the loans. Dividing cash flow by total debt answers a different question, covered in cash debt coverage.
For a business cash-flow view, finance might start with EBITDA and deduct cash taxes, maintenance capital expenditures and increases in operating working capital. That is the convention used below. A covenant might instead prescribe EBITDA, adjusted EBITDA or another defined amount. Do not replace that definition with a preferred management measure and call the result covenant compliance.
The SEC's non-GAAP guidance distinguishes EBITDA from differently adjusted measures and discusses disclosure of credit-agreement measures and their covenant limits. That distinction matters inside the company too: maintain a bridge from the financial statements to every permitted adjustment.
Bring a period P&L, the supporting cash-flow schedules and the required repayment schedule. The schedule should identify the borrowing entity, facility, due date, principal, cash interest and whether the item is included under the selected definition. Keep actual payments separate from required payments so an overdue installment cannot disappear from the denominator.
For the numerator, retain the EBITDA reconciliation and the rows supporting taxes, capital expenditures and working-capital movements. A closing balance sheet alone cannot show those period flows. Use the same entities, currency and period throughout; a subsidiary's debt service cannot be compared with cash from the whole group unless that scope is intended and permitted.
Treasury owns the debt schedule, accounting owns the underlying balances and finance owns the calculation. The person responsible for the financing agreement should confirm the interpretation before anyone reports compliance. The OCC's commercial-loan examination procedures specifically call for assessing whether operating cash flow can meet scheduled amortizing payments.
A US distributor measures the quarter ended September 30, 2026. Its internal cash-flow definition deducts the following cash uses from EBITDA before comparing the result with required payments. All inputs below are illustrative company records, rather than an industry benchmark.
| Numerator step | Calculation | Amount (USD) |
|---|---|---|
| EBITDA from reconciled P&L | Starting amount | 540,000 |
| Cash taxes | Deduct | 65,000 |
| Maintenance capital expenditures | Deduct | 45,000 |
| Increase in operating working capital | Deduct | 70,000 |
| Cash available for debt service | 540,000 - 65,000 - 45,000 - 70,000 | 360,000 |
Working capital is a cash use here because operating balances absorbed cash during the quarter. The selected definition deducts maintenance capital expenditures; it should separately identify any other investment excluded from this calculation. Exclusion from a ratio does not make a cash payment disappear from the liquidity plan.
The loan schedules for that same quarter give the denominator:
| Debt-service step | Calculation | Amount (USD) |
|---|---|---|
| Term loan A scheduled principal | Repayment schedule | 200,000 |
| Term loan B scheduled principal | Repayment schedule | 40,000 |
| Cash interest on included loans | Interest schedule | 60,000 |
| Required debt service | 200,000 + 40,000 + 60,000 | 300,000 |
| Result | Calculation | Value |
|---|---|---|
| Cash-flow DSCR | 360,000 / 300,000 | 1.20x |
| EBITDA-based coverage, for comparison | 540,000 / 300,000 | 1.80x |
| Cash remaining after debt service (USD) | 360,000 - 300,000 | 60,000 |
Ratios are shown to two decimal places. The higher EBITDA-based result reflects omitted cash uses; it does not represent additional cash in the bank. Use DSCR versus interest coverage when the question is whether to include principal or measure interest alone.
First reconcile the numerator: $360,000 plus the deducted taxes, capital expenditures and working-capital increase must return to the $540,000 starting amount. Reconcile that starting amount to the P&L under the selected EBITDA convention.
Next match every included due date to the debt schedule and confirm that the required principal and interest sum to $300,000. Tie the loan balances to the ledger, but do not confuse that balance reconciliation with proof of the payments due. Look for a maturity or mandatory repayment recorded outside the regular amortization tab.
Finally, multiply the unrounded DSCR by required debt service: 1.20 times $300,000 returns $360,000. This arithmetic identity checks the division. It cannot validate missing obligations, an unsupported addback or a wrongly classified cash use.
Suppose this distributor's agreement uses the same cash-flow definition and requires at least 1.15x. That is an illustrative contractual requirement, not a recommended minimum for other companies.
| Headroom step | Calculation | Result |
|---|---|---|
| Assumed contractual minimum | Agreement input | 1.15x |
| Cash required at that minimum (USD) | 300,000 x 1.15 | 345,000 |
| Cash above the minimum (USD) | 360,000 - 345,000 | 15,000 |
| Receipt delay used for stress test (USD) | Scenario input | 45,000 |
| Stressed cash available (USD) | 360,000 - 45,000 | 315,000 |
| Stressed DSCR | 315,000 / 300,000 | 1.05x |
The original calculation leaves $60,000 after debt service but only $15,000 above the assumed covenant requirement. The receipt-delay scenario still covers the scheduled payments on this period basis, yet falls below that requirement. That difference is why treasury needs both a payment forecast and a covenant calculation.
Timing also matters within a period. Quarterly coverage cannot prove that cash is available on each due date. Project-specific cash waterfalls need their own conventions; see DSCR in project finance. Program-specific lending requirements belong in SBA debt service coverage, rather than a universal business threshold.
Bring your cash-flow workbook and repayment schedule to Covirage with the numerator and debt-service definitions agreed by finance. Covirage maps the columns; its tools compute and check the coverage figures, and the external AI model explains the result with every figure traced to its rows. Create a free Covirage account and bring a sample of your own export.
See Covirage for finance teams for analysis from the files your team already uses.
A ratio of one means the defined numerator exactly equals the required debt service for the measured period. There is no cushion on that calculation. It does not prove each payment can be made on time, because cash receipts and payment dates may fall unevenly within the period.
No. EBITDA does not itself deduct cash taxes, capital expenditures or cash absorbed by working capital. A loan agreement may nevertheless specify EBITDA or adjusted EBITDA as its numerator. Label that convention and keep a separate cash bridge when assessing payment capacity.
Use the requirement in the relevant financing agreement and compare it with the company's risk and cash timing. A lender may require a cushion above full coverage. There is no single minimum that applies to every business, facility or covenant calculation.
Required principal repayments generally belong in debt service alongside interest, subject to the agreement's definition. Check how it treats revolvers, balloon payments, leases and mandatory prepayments. Interest expense alone measures a narrower obligation and cannot substitute for a full repayment schedule.