LedgerLumen

Cash calculator

Invoice aging and cash collection calculator

See which unpaid invoices need attention first.

Use this calculator to understand which invoices need attention first and how much cash is sitting in overdue receivables.

LedgerLumen invoices screen showing sample invoice records, due dates, balances, and overdue status

At a glance

Cash collection work is clearer when current invoices and overdue balances are separated by age.

What it buckets

Enter customer, due date, and unpaid balance details to group invoices into current, 1-30, 31-60, and 60+ day buckets.

When to use it

Use it before customer follow-up, weekly cash review, or advisor conversations about receivables.

What to do next

Start with the oldest and largest balances, then keep invoice status connected to customer and project records in LedgerLumen.

Free tools

Use the tool that matches today's record problem.

Cash calculator

Invoice aging and cash collection calculator

Use this calculator to understand which invoices need attention first and how much cash is sitting in overdue receivables.

  • Bucket unpaid invoices by due-date age
  • Separate current receivables from overdue balances
  • Prioritize follow-up by customer and amount
Open tool

Trust and fit

Built for the owner who still has to answer the money questions.

  • Runs in the browser for this no-login tool
  • Built for unpaid invoice visibility
  • Keeps cash follow-up separate from tax or accounting advice

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