Receivables & cash collection

Invoice Aging & Collections Calculator

Enter five due-date aging buckets and your collection assumptions. See the overdue total and an oldest-first review table without entering customer details.

74 / REVIEW AGED RECEIVABLES

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Starting values are illustrative. Use your own costs, rates and assumptions.

INPUT GROUP 01

Balances at one reporting date

INPUT GROUP 02

Your collection scenarios, not benchmark probabilities

YOUR CALCULATION

Review oldest overdue balances first, with your own collection scenarios.

Total entered receivables

$20,000.00

Total overdue receivables

$10,000.00

Overdue / total receivables

50.00%

Collections under entered assumptions

$18,400.00

Balance not modeled as collected

$1,600.00

Oldest-first review and collection scenario

Oldest-first review and collection scenario
Age bucketBalanceEntered collection %Scenario collectionsNot modeled collected
91+ days overdue$1,000.0040.00%$400.00$600.00
61–90 days overdue$1,000.0070.00%$700.00$300.00
31–60 days overdue$3,000.0085.00%$2,550.00$450.00
1–30 days overdue$5,000.0095.00%$4,750.00$250.00
Current / not overdue$10,000.00100.00%$10,000.00$0.00

Keep the calculation

Saving is optional and stays on this device. Unsaved edits are not kept when you leave. CSV includes every input and the current results.

Illustrative inputs loaded. Replace them with your own assumptions.

How the invoice aging & collections calculator works

Use one reporting date and days past the invoice due date. Current balances are not overdue; the other four buckets are mutually exclusive ranges. Enter each outstanding balance once. Balance inputs round to cents before the totals are assembled. No customer names, invoice identifiers or due dates are required.

Scenario collections equal each bucket balance multiplied by its entered collection percentage, rounded separately to cents, then summed. The overdue share is overdue balance divided by total entered receivables. A zero total gives an undefined share. Starting percentages are illustrative assumptions and do not encode a measured relationship between age and recovery.

The table places older overdue buckets first as an age-based review order. It does not rank individual debtors, recommend a collection action or establish legal priority. The remainder is simply not modeled as collected under the scenario; it is not a credit-loss allowance, bad-debt expense or determination that a balance is uncollectible.

Worked example

Balances of 10,000 current, 5,000 at 1–30 days, 3,000 at 31–60 days, 1,000 at 61–90 days and 1,000 at 91+ days total 20,000, with 10,000 overdue. Collection assumptions of 100%, 95%, 85%, 70% and 40% yield 10,000 + 4,750 + 2,550 + 700 + 400 = 18,400 scenario collections. Raising the oldest-bucket assumption to 80% increases collections to 18,800.

Sources and assumptions

The source material explains the underlying calculation or pricing structure. Entered prices, costs, schedules and scenario choices are your assumptions; this tool does not obtain supplier quotes or predict actual results.

Calculation methods, testing and sources · Practical calculation guides