What Is Slow Payments Costing Your Business? 

Most business owners focus heavily on the cost of accepting a credit card. But there is another massive cost that routinely gets ignored: the cost of waiting 30, 45, or even 60 days to get paid.

When your customers take weeks to clear an invoice, your business is the one left floating payroll, inventory, materials, fuel, rent, insurance, and daily operating expenses.

In Plain English You are acting like the bank for your customers.

This calculator helps estimate the precise financial value of getting paid faster by utilizing a simple, baseline time-value-of-money formula:

Cost of Capital ÷ 365 × Days Faster Paid

For example: If a business has an 8.25% weighted cost of capital and accelerates their invoicing to get paid 27 days faster, that payment acceleration alone is worth roughly 0.61% of the total invoice value back into the business.

See What Faster Payments Could Be Worth 

Enter your monthly invoice volume, your current average days to get paid, and your expected payment time with Smart Invoicing. The calculator will estimate the monthly and annual value of getting paid faster.

This is not just about card fees. It is about cash flow, working capital, and reducing the amount of time your business waits for money it already earned. Don't let slow payments stall your company's growth.

See What Faster Payments Could Be Worth

Enter your monthly invoice volume, your current average days to get paid, and your expected payment time with Smart Invoicing. The calculator will estimate the monthly and annual value of getting paid faster.

This is not just about card fees. It is about cash flow, working capital, and reducing the amount of time your business waits for money it already earned. Don't let slow payments stall your company's growth.

$
Total amount invoiced to customers each month
days
Your typical net payment period today (e.g. Net 30, Net 45)
days
Customers pay online via link — often same day or next day
%
Weighted average, line of credit rate, or opportunity cost
Formula: Cost of capital ÷ 365 × days paid faster × monthly volume.
Annual value of faster payment
$5,724
Projected annual benefit at your inputs
Monthly value
$477
Estimated monthly benefit of faster payment
Days paid faster
42
Reduction in AR lag
Daily cost rate
0.0226%
Per day per dollar outstanding

What these results mean

Improved cash flow and reduced cash tied up in accounts receivable
Fewer collection calls and follow-up emails chasing overdue invoices
Lower reliance on lines of credit to cover operating expenses
Cover payroll and vendor expenses faster without borrowing
Customers pay by card, ACH, Apple Pay, Google Pay, or payment link
Stop financing your customers' cash flow with your own working capital

If your customers pay faster, your business can actively reverse the negative impact of slow payments and reduce the amount of cash tied up in accounts receivable.

Stop acting like the bank for your customers. With NPSONE Smart Invoicing, businesses can bypass slow payments entirely by sending invoices with secure payment links, letting customers pay online — without waiting for checks, manual ACH instructions, or back-and-forth collection emails.

Stop Waiting. Start Getting Paid Faster. 

    NPSONE Smart Invoicing helps businesses send invoices, accept payments online, and give customers an easier way to pay. Your customers may want 30 days. 

Your customers may want 30 days. 

Their credit card can give them that. 

Your business does not have to. 

This calculator is for informational purposes only and provides an estimate based on the numbers entered. Actual results may vary based on your payment terms, customer behavior, processing costs, borrowing costs, accounting practices, and business operations. Nationwide Payment Systems does not provide legal, tax, or financial advice. Please consult your financial advisor, accountant, or legal professional before making business decisions. 

Invoice Acceleration & Cash Flow FAQ

1. What does this calculator measure? +
2. What is cost of capital? +
3. Why does getting paid faster matter? +
4. Is this the same as calculating credit card processing fees? +
5. Can customers still get terms if they pay by credit card? +
6. Who is this calculator best for? +
7. How does NPSONE Smart Invoicing help? +
8. Can this work with QuickBooks? +
9. Does faster payment eliminate collections? +
10. What should I do after using the calculator? +