Stop Overpaying: How to Accurately Measure the Cost of Capital

Using APR to compare early payment options

As a supplier, you probably see lots of different offers to get paid early:

• Invoices with static terms like 2/30, net 31
• Cards and lines of credit quoted with APR
• Dynamic discounting programs, such as C2FO Early Pay™

It makes it hard to see which option is really the lowest cost of capital.

Why understanding the true cost of capital dictates business survival today

With traditional bank lines of credit remaining highly sensitive to macroeconomic shifts, optimizing alternative liquidity channels is no longer optional. In today’s economy, cash in hand is worth a lot more than cash thirty days from now. Knowing your comparative APR lets you treat early payments as a tool to fight inflation instead of just a cost of doing business.

The trick is understanding the APR

We can translate each option and compare them more easily  by calculating the APR applied. Using APR as a standardized metric to express the cost of early invoice payment allows easier comparison of costs. Converting a flat discount percentage into a yearly rate based on the number of days payment is accelerated, allows businesses to compare the cost of early payment programs directly against other liquidity options, such as bank lines of credit, factoring, or asset-based lending.

Example on a 100 dollar invoice

Assume your standard term is net 31.

You already offer a static discount:

• 2/30, net 31
  The buyer discounts the invoice payment by two percent if they pay on day 30.

Now you are looking at whether a dynamic discount is worth it:

• It’s an extra 0.5 percent if they pay on day 10 through a program like C2FO Early Pay™.

What this tells you

• The static 2 percent for only 1 day (day 31 to day 30) is extremely expensive when you annualize it. It is equivalent to an over 700% APR.
• The extra 0.5 percent cost to move payment from day 30 to day 10 works out to about 9% APR.
• If your card or line of credit costs more than that, using the dynamic early payment can be the cheaper and faster way to fund your working capital.
  

When this approach can help you

Looking at the APR is useful when you:

• Need cash earlier for inventory, payroll, or growth.
• Want to assess options and know if an extra discount is worth it.

Working capital tips:

• Before you accept any early payment offer, check it against your current bank line of credit or credit card rates. If the APR of an early payment program is lower than your bank’s rate, use the early payment first.
• Keep cash moving to beat inflation: In a high-cost economy, holding onto an invoice for 30 or 60 days means your money is losing value while it sits. Accelerating that cash at a reasonable APR lets you reinvest in inventory or payroll immediately, protecting your purchasing power.

Frequently asked questions

What is the APR in supply chain finance?
APR is a standard financial metric meaning Annual Percentage Rate, or the cost of capital. Converting a short-term invoice discount into an annualized interest rate allows businesses to directly compare the costs of early payment programs with traditional financing options such as bank lines of credit or factoring.

How do you calculate APR on an invoice?
To calculate the APR, divide the discount percentage by the number of days the payment is accelerated, then multiply the result by 365 days. For example, a $2\%$ discount for getting paid 20 days early is calculated as: $(0.02 \div 20) \times 365 = 36.5\%$ APR.

Why is dynamic discounting usually better than static discounting?
Static discounting often charges a high flat fee for a very brief acceleration window, resulting in an incredibly high APR. Dynamic discounting scales the discount based on how early you get paid, which lowers the annualized cost and gives you more control over your cash flow.