License and permit renewals v1.0.0 · Windows, macOS and Linux

Know which licenses and permits are due.

CertaDue is a renewal tracker for small businesses that keep licenses, permits and deadlines in email, calendars and spreadsheets. Every record shows what's due, whether you've checked it against an official source, and what to do next. It runs on your own computer, and your records never leave it.

Commercial license

$49 one-time

One payment licenses CertaDue for your business permanently, with no subscription. Your license ID and download link appear right after checkout and are emailed to you. Personal, non-commercial use is free.

Buy a license · $49 one-time

CertaDue's renewal queue on sample data: four licenses for a sample HVAC business, one each in Action Required, Review Needed, Secure and Unverified, each with a masked identifier, a deadline, an official source link and a next action

Business owner checking license paperwork and renewal dates — Keeping every renewal date in view

What it does

One record per license or permit

Name, issuing authority, license number, renewal deadline, official source link and whether you've verified it. Add, edit or remove records at any time.

A status you can predict

Action Required at 30 days or less (or overdue), Review Needed at 31 to 60, Secure beyond 60. Anything not verified, or without a usable deadline, stays Unverified. It never guesses a deadline.

A next action on every record

Each record says what to do now, for example “Prepare renewal now. 19 days remaining.” Summary tiles count each status.

Identifiers masked

License numbers show only the last 4 characters on screen. Export the list as JSON with the numbers masked, so the file is safe to share with a bookkeeper.

Adding a record takes one form. Paste the agency's page as the official source, and mark it verified only once you've checked the deadline there yourself.

What it doesn't do

CertaDue doesn't file, pay, sign or attest anything, and it doesn't contact government agencies for you. It doesn't find your licenses for you or claim full coverage of any jurisdiction, and it isn't legal, tax or compliance advice. You enter each record and deadline yourself, and “verified” means you checked the official source. Don't enter EINs, SSNs, bank or card details, or government portal logins.

What you need

Windows 10 or 11. Nothing else to install. Unzip and double-click the Windows start script.
macOS. Python 3, which macOS offers to install the first time you run the start script.
Linux. Python 3.7 or newer.
Any of them. A current Chrome, Edge, Firefox or Safari. No internet connection needed once it's unzipped.

The download includes INSTALL.md with the steps for each system. The start script serves CertaDue to your own browser at a local address that only your computer can reach.

Product facts

Who it's for: A small business that tracks licenses, permits, registrations and renewal deadlines by hand. Built first for South Carolina home-service businesses: HVAC, plumbing, electrical, roofing and general contracting.
What it does for you: One queue of licenses and permits, each with its deadline, official source, status and next action.
What runs, and where: On your own computer. A start script for Windows, macOS or Linux opens it in your browser. No account and no server of ours.
You provide: Your business profile and each license or permit, entered by hand.
Your data: Your records stay in your browser on the computer you run it on, and are never sent anywhere. Clearing that browser's site data deletes them.
Who checks the results: You. You confirm each record against the official source.
Price and billing: $49 one-time, with no subscription or renewal. Personal, non-commercial use is free.
License: One business, permanently, for this major version. The terms are the LICENSE file inside the download.
Known limits: One computer and one browser. No accounts, sync or team sharing.
No email or SMS reminders. You open it to see what's due.
No import. The export masks license numbers, so it's a readable record, not a backup you can load into another computer.
Version: 1.0.0