Late payments are not just annoying. They create drag.
When clients pay late, the problem is not only the money arriving late. It is the time you spend checking status, writing reminders, and wondering whether now is the right moment to follow up again.
This calculator gives you a fast estimate of that drag, then points you to automated invoice reminders as the action step.
Interactive calculator
Estimate your late payment drag
Plug in your normal invoice volume, average invoice size, payment delay, and manual follow-up time. Nudge calculates the delayed cash flow and time cost instantly.
Your estimate
Late payments are slowing down more than one invoice.
Monthly receivables delayed
$8,640
Approximate revenue still sitting outstanding in a typical month because clients pay late.
Yearly delayed cash flow estimate
$103,680
A twelve-month view of the same delay using your current invoice pace and average lateness.
Time spent chasing payments
4.0 hrs/mo
That is about 48.0 hours per year spent on reminders, thread checks, and payment follow-up.
Late payments create pressure in two ways. Cash lands later than it should, and you burn time managing the follow-up manually. A simple reminder system reduces both forms of drag.
Calculation rules for v1
- • Monthly receivables delayed = invoices per month × average invoice value × (average days late ÷ 30)
- • Yearly delayed cash flow estimate = monthly receivables delayed × 12
- • Time spent chasing payments shows both monthly hours and yearly hours
This is directional, not accounting advice. It is meant to make the drag obvious enough that fixing the follow-up problem feels urgent.
The cost is bigger than one overdue invoice
- • slower cash flow
- • more admin time
- • more awkward reminders you keep postponing
- • less time for paid client work
If you want a manual fallback before signing up, copy the sequence on invoice reminder email templates.
Stop the delay at the follow-up step
If you are using a general invoicing tool and still doing reminder work manually, compare fit on Wave alternative for freelancers. Or head back to the homepage for the main product overview.