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Business debt service calculator

Enter the cash a business has available to service debt and the coverage ratio you are being held to, and this works out how much more it can borrow.

The coverage ratio is an input rather than a default because it is a covenant each financier sets, and it varies by sector, security and appetite.

Business debt service calculator

Solves for the additional facility a business cashflow supports at a debt service coverage ratio you set, after existing commitments.

Earnings available for debt service — often EBITDA, adjusted for anything the lender would add back or take out. Enter the figure you can defend.

Principal and interest already committed each year on other facilities.

How many times cashflow must cover total debt service. This is a covenant the financier sets and it varies by lender, sector and security — there is no published standard, so it is entered rather than assumed.

Nominal annual rate on the new facility.

Years over which the new facility amortises.

Indicative additional facility

$1,389,049.20

Debt service the ratio permits
$266,666.67
Already committed
$60,000.00
Available for a new facility
$206,666.67
Monthly repayment on that facility
$17,222.22
Resulting coverage
1.50%
Cash available to service debt
$400,000.00

Betabusiness-borrowing-power v1.0.0

Indicative scenario only, for general information. It is not a credit assessment, not an approval, and not an indication that any financier will lend. Business credit turns on coverage covenants, earnings adjustments, security margins and sector policy that each financier sets privately, so the coverage ratio here is your assumption rather than a published standard. It is not financial advice.

What to enter

  • Cash available to service debt

    Often EBITDA, adjusted for whatever a financier would add back or take out. Use the figure you can defend with statements, not the optimistic one.

  • Existing debt service

    Principal and interest already committed on other facilities. Leaving these out is the most common way this arithmetic gets done wrong.

  • Debt service coverage ratio

    How many times cash must cover total debt service. A higher ratio is a more conservative covenant and permits less borrowing.

Reading the result

The headline is the additional facility that fits inside the covenant once existing debt is served. The resulting coverage line confirms it: at the maximum, coverage should sit at the ratio you entered.

A zero result means existing commitments already consume the debt service the ratio permits. The remedy is either more cash, less existing debt, or a covenant the financier is prepared to relax.

Test it at several ratios. Moving from 1.5 to 1.25 changes the answer far more than most people expect, which is why the covenant is negotiated as hard as the rate.

Worked examples

Every figure below is computed by the same calculator on this page, from the inputs described. Nothing here is typed in by hand, so an example cannot disagree with the tool.

A business with $400,000 of serviceable cash at 1.5 times

Indicative additional facility
$1,389,049
Debt service the ratio permits
$266,667
Already committed
$60,000

The permitted debt service is well below the cash available — that is the covenant doing its job. What is left after existing commitments is what the new facility can consume.

The same business held to two times cover

Indicative additional facility
$940,969
Debt service the ratio permits
$200,000
Already committed
$60,000

A tighter covenant on identical cashflow, and a materially smaller facility. Worth having in front of you before agreeing to a ratio in a term sheet.

How it is worked out

Available cash divided by the coverage ratio gives the total debt service the covenant permits. Existing commitments are subtracted, leaving what a new facility may consume.

That annual amount is divided into monthly payments and inverted through the standard annuity formula at the rate and term entered, giving the principal it services.

How every calculator on this site is built

What it assumes

  • The covenant is the only test

    Real credit decisions also turn on security, sector, trading history, concentration of customers and the guarantors behind the entity. None of that is arithmetic and none of it is here.

  • Cashflow holds steady

    The figure entered is treated as durable. Businesses whose earnings move with a commodity price, a season or one customer should test the answer at a lower figure.

  • Amortising, not interest-only

    The facility is assumed to repay principal and interest over the term. An interest-only period would support a larger facility during it and a larger obligation afterwards.

Where it stops being right

  • Not a credit assessment

    No financier has agreed to anything and this is not an approval. Business credit policy is private and varies more between lenders than consumer policy does.

  • Tax is not modelled

    The cash figure is used as entered. Whether interest is deductible and how that changes the after-tax cost is outside this calculation.

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Putting this calculator on your own site

This calculator can be embedded on a business website, branded to match it, with a call to action that sends the enquiry to that business rather than collecting anything here.