Determine the aging bracket and vintage of an invoice from the original issue date.
Calculate the age of any invoice in days from its issue date to today with this free tool.
An invoice age calculator measures how many days have passed since an invoice was issued. This is used in accounts receivable management to track which invoices are aging and which require immediate follow-up.
Older invoices are harder to collect. Knowing the age of each outstanding invoice helps you prioritise.
Accounts receivable teams typically group invoices into aging buckets: 0-30 days, 31-60 days, 61-90 days, and 90+ days. The older the invoice, the higher the collection risk.
Regular invoice aging analysis shows you the health of your receivables.
Invoice age is measured from the issue date. Days overdue is measured from the due date. An invoice issued 45 days ago with Net 30 terms is 15 days overdue.
Both metrics are important: age for general tracking, overdue days for late fee and urgency calculations.
Enter the invoice issue date. The calculator shows how many days old the invoice is as of today.
Compare this to the payment term to determine whether the invoice is still within terms or overdue.
For invoices within terms: no follow-up needed yet. For invoices close to the due date: send a friendly reminder. For overdue invoices: escalate follow-up frequency based on the number of overdue days.
A structured follow-up process based on invoice age significantly improves your collection rate.
Tez Invoice is our free online invoice generator. No sign up. No watermark. Download clean PDF or JPEG invoices in seconds, right from your browser.
Common questions about Invoice Age Calculator: Find How Many Days Old Any Invoice Is on Tez Invoice.
The number of days since an invoice was issued, measured from the issue date to today.
Yes. Free with no sign up.
Invoice age is from the issue date. Days overdue is from the due date. An invoice can be 45 days old but only 15 days overdue if the terms are Net 30.
Grouping outstanding invoices into age buckets (0-30, 31-60, 61-90, 90+ days) to identify collection risks.
At 30 days overdue, escalate to a formal demand. At 60-90 days, consider professional collection assistance.
Yes. Free with no sign up and no usage limits.
Yes. Fully responsive on all devices.
No. In-browser processing only.
Yes. Designed for small businesses and freelancers.
Use the free Invoice Generator on Tez Invoice.