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Primary formula: operating cash available รท debt service

Educational only: Business decision support, not accounting, tax or legal advice.

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Update policy: Reviewed when formulas or official dependencies change.

Scope: Market-neutral small-business planning using your own assumptions.

What this planner helps you decide

Best for

Owners stress-testing whether operating cash can cover scheduled debt and lease obligations.

Outputs

Total debt service, base and downside coverage, cash gap to the selected threshold and downside status.

Start here

Use one period for cash and debt payments, then choose a conservative cash-reduction scenario.

Use a different tool when: Do not use this to compare periodic loan repayments and total interest across financing terms; use Business Loan Repayment Planner for that decision. Use this tool to stress-test operating cash coverage of scheduled debt obligations.

Cash & growth

Debt Service Coverage: total debt service

Total debt service, base and downside coverage, cash gap to the selected threshold and downside status.

Amounts use the same currency as your inputs. No currency conversion is performed.

Planning assumptions

Use records and assumptions from one consistent period. Values stay in this browser.

Your numbers stay in this browser

Cash available for debt service for the selected period. Use one consistent currency and time basis.

Interest payments due in the same period. Use one consistent currency and time basis.

Principal repayments due in the same period. Use one consistent currency and time basis.

Other contractual debt-like payments due in the period. Use one consistent currency and time basis.

%

Stress reduction applied to operating cash available.

User-selected minimum operating-cash coverage threshold.

Decision result

Each output is bound to its own registered engine formula step.

PDF and CSV exports stay on this device. Clean page links contain no inputs.
Base coverage ratio
1.5ร—
Debt Service
120,000.00
Downside Coverage Ratio
1.28ร—
Base Coverage Gap
30,000.00

Scenario comparison

Each row names the assumption axis changed from the baseline.

ScenarioResultDifference
Current scenario1.50Baseline
Lower Downside cash reduction1.500.00
Higher Downside cash reduction1.500.00

Save these results, change an input, then compare the updated figures with this baseline.

The baseline is temporary in this tab and is not added to shared scenario links or generated reports.

Calculation details

View calculation detailsView the formulas and inputs used for these results.

Base coverage ratio

Base Coverage Ratiooperating cash available รท debt service1.5 ratio
Result1.5ร—

Uses one consistent market-neutral ex-tax basis and planning period. The engine retains full precision; only presentation is rounded.

Debt Service Coverage Planner formulas โ†’
Inputs used by these formula steps
Base Coverage RatioOperating Cash Available
180,000
Base Coverage RatioInterest Due
30,000
Base Coverage RatioPrincipal Due
75,000
Base Coverage RatioLease And Other Debt Due
15,000
Base Coverage RatioDownside Cash Reduction Rate
0.15
Base Coverage RatioMinimum Coverage Ratio
1.25

Debt Service

Debt Serviceinterest due + principal due + lease and other debt due120,000.00
Result120,000.00

Uses one consistent market-neutral ex-tax basis and planning period. The engine retains full precision; only presentation is rounded.

Debt Service Coverage Planner formulas โ†’
Inputs used by these formula steps
Debt ServiceOperating Cash Available
180,000
Debt ServiceInterest Due
30,000
Debt ServicePrincipal Due
75,000
Debt ServiceLease And Other Debt Due
15,000
Debt ServiceDownside Cash Reduction Rate
0.15
Debt ServiceMinimum Coverage Ratio
1.25

Downside Coverage Ratio

Downside Coverage Ratiooperating cash available ร— (1 โˆ’ downside reduction) รท debt service1.28 ratio
Result1.28ร—

Uses one consistent market-neutral ex-tax basis and planning period. The engine retains full precision; only presentation is rounded.

Debt Service Coverage Planner formulas โ†’
Inputs used by these formula steps
Downside Coverage RatioOperating Cash Available
180,000
Downside Coverage RatioInterest Due
30,000
Downside Coverage RatioPrincipal Due
75,000
Downside Coverage RatioLease And Other Debt Due
15,000
Downside Coverage RatioDownside Cash Reduction Rate
0.15
Downside Coverage RatioMinimum Coverage Ratio
1.25

Base Coverage Gap

Base Coverage Gapoperating cash available โˆ’ debt service ร— minimum coverage ratio30,000.00
Result30,000.00

Uses one consistent market-neutral ex-tax basis and planning period. The engine retains full precision; only presentation is rounded.

Debt Service Coverage Planner formulas โ†’
Inputs used by these formula steps
Base Coverage GapOperating Cash Available
180,000
Base Coverage GapInterest Due
30,000
Base Coverage GapPrincipal Due
75,000
Base Coverage GapLease And Other Debt Due
15,000
Base Coverage GapDownside Cash Reduction Rate
0.15
Base Coverage GapMinimum Coverage Ratio
1.25

Inputs used

Operating cash available
180,000
Interest due
30,000
Principal due
75,000
Lease and other debt due
15,000
Downside cash reduction
0.15
Minimum coverage ratio
1.25
Open this calculator with preset values

This calculator supports documented, shareable scenario URLs. Compatible assistants and applications can construct links using the parameters below.

Scenario links contain only allowlisted numeric and closed-choice inputs shown in the URL; Margin101 excludes free text and identifying fields. Anyone you share the URL with can read those numbers, so do not include private or identifying data.

Example: https://margin101.com/tools/debt-service-coverage/?sv=1&downsideCashReductionRate=0.15&interestDue=30000&leaseAndOtherDebtDue=15000&minimumCoverageRatio=1.25&operatingCashAvailable=180000&principalDue=75000

ParameterMeaningUnitAllowed valuesPresenceDefault
downsideCashReductionRateStress reduction applied to operating cash available.decimal fraction of operating cash removed in the downside scenario (1 = 100%)0 to 1Required0.15
interestDueInterest payments due in the same period. Use one consistent currency and time basis.currency units/selected debt-service period0 to 100000000Required30000
leaseAndOtherDebtDueOther contractual debt-like payments due in the period. Use one consistent currency and time basis.currency units/selected debt-service period0 to 100000000Required15000
minimumCoverageRatioUser-selected minimum operating-cash coverage threshold.decimal debt-service coverage ratio: operating cash / total debt service1 to 20Required1.25
operatingCashAvailableCash available for debt service for the selected period. Use one consistent currency and time basis.currency units/selected debt-service period0 to 100000000Required180000
principalDuePrincipal repayments due in the same period. Use one consistent currency and time basis.currency units/selected debt-service period0 to 100000000Required75000

Debt Service Coverage: total debt service

Coverage is a planning ratio based on the entered definition of operating cash and debt service, not a covenant assessment.

Formula summary

Primary formula
operating cash available รท debt service

Read the full methodology

Data used here

  • The estimate uses your inputs and the general business formula documented in the methodology.

Decision checks

Act on the result

Reconcile every debt payment and confirm the lender covenant definition before using the ratio in a financing decision.

Stress-test the decision

Increase the downside cash reduction and include lease or other debt-like obligations that may have been omitted.

When this estimate can be misleading

  • This model excludes lender fees, tax effects, covenant wording and lender-specific assessments.
  • Results depend on complete, consistently classified inputs.
  • Demand, timing, quality and strategic fit remain separate decisions.
  • This is educational business decision support, not accounting, tax, legal or financial advice.
  • Coverage is a planning ratio based on the entered definition of operating cash and debt service, not a covenant assessment.

Educational estimate, not advice. See all assumptions & limitations โ†’

Guides to interpret the decision and its assumptions.

Frequently asked questions

How do I stress-test operating cash coverage of scheduled debt obligations?

Reconcile every debt payment and confirm the lender covenant definition before using the ratio in a financing decision.

Which planning assumptions should I stress-test?

Compare a plausible alternative scenario and verify the decision-critical assumption that changes the plan most.