Past Due Notice

Easily and automatically send reminders for past due notices and get paid. Perfect for Quickbooks, Xero, Harvest, Freshbooks and more

A past due notice is an effective way to notify your customers that they have unpaid invoices or past due invoices. Unpaid invoices are the bane of a small or medium sized business cash flow. According to a study by U.S. Bank, 82 percent of small businesses fail due to poor cash flow management. The average small business has $84,000 in unpaid invoices, with 81% of them being more than 30 days past due.

Mailform's integration with Quickbooks is focused on solving this problem for small and medium sized businesses. Mailform with Quickbooks helps small and medium sized businesses recover unpaid invoices, and get paid faster. Here's how it works:

  1. Log into Mailform (or create an account here:
  2. Sync your Mailform Account with your Quickbooks account. Mailform automatically import your unpaid invoices and the addresses of those customers
  3. Choose which unpaid invoices you'd like to send
  4. Select your print and mail options - you can choose to print single vs. double sided, black and white vs in color, and whether you want to send your invoices via USPS Certified Mail (so you can get tracking numbers)
  5. Hit "Confirm"

That's it! All unpaid or past due invoices are sent via USPS First Class Mail or Certified Mail. Small businesses have recovered millions in revenue from unpaid invoices. With Mailform, you can do it to.

Try it now at, or email if you have questions, comments or suggestions!

If you're looking to send past due notices fast, Mailform supports the USPS Overnight Service (via USPS Priority Mail Express). In addition, you can send via USPS Priority Mail for expedited, but less expensive service. If you're interested in the absolute fastest option, our sister service SendOvernightMail enables you to print and Mail via Fedex (orders are shipped via Fedex Kinkos): using Fedex Overnight, Fedex 2 Day, and several other Fedex services via Fedex Kinkos. All Fedex and USPS Priority options come with delivery confirmation via email, and you'll get a tracking number that you can independently use to verify that your documents were delivered.

These happy customers and businesses are using Mailform

"Mailform saves me time. Period."

- Alex Andon, Simility

"We print monthly invoices and the quick support is fantastic!"

- Brett Florio, FoxyCart