Business Line of Credit Calculator

Work out what drawing on a line of credit actually costs over the repayment period.

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Business Line of Credit Calculator

Enter the drawdown, rate, fees and repayment schedule.

Total cost over the period
β€”
Enter values above
Interest paid
β€”
Fees paid
β€”
Balance at the end
β€”
Effective annual cost
β€”
Average balance
β€”

Worked example

With the default inputs shown below, this calculator returns the following results:

InputValue
Credit limit ($)50000
Drawdown amount ($)30000
Interest rate (%)9.5
Monthly account fee ($)25
Months of use6
Repayment per month ($)5000
ResultValue
Total cost over the period$1,003.45
Interest paid$853.45
Fees paid$150.00
Balance at the end$853.45
Effective annual cost6.69%
Average balance$17,967.32

Values shown are produced by this page in your browser; change any input to update them.

How to use the Business Line of Credit Calculator

  1. Credit limit ($) β€” default 50000
  2. Drawdown amount ($) β€” default 30000
  3. Interest rate (%) β€” default 9.5
  4. Monthly account fee ($) β€” default 25
  5. Months of use β€” default 6
  6. Repayment per month ($) β€” default 5000
  7. Press Calculate to update the results instantly.

Frequently asked questions

Interest accrues daily on the outstanding balance, so paying down early genuinely reduces the cost. Most facilities charge a small monthly or annual fee whether or not you draw.
Only the drawdown costs interest. The limit matters for the fee calculation and for whether the facility is large enough for your working-capital cycle.
When the need is seasonal or unpredictable. A line flexes up and down with working capital; a term loan is cheaper per dollar but you pay interest on the whole amount from day one.

Sources & references