Velosys

ATS – an Open Source Property Tax Solution

Open source, customizable, and contains all the data you need to accurately calculate and collect property taxes.

Key Features

  • Manage Assessments, Levies, Real and Personal Property, New Construction / Destroyed Property, Bankruptcies, Foreclosures, LIDs, and much more.
  • Make payment plans and advance payment plans.
  • A Personal Property Online (PPOL) module that provides a public-facing website for business owners to update their Personal Property information.
  • Complete flexibility to set up the accounting and interface with your existing accounting software.
  • Easily control whether to assign late fees, NSF payments, etc.
  • Flexible queries.
  • All application data accessible from a RESTful API.
ATS-screens

Expert Implementation, Customization, and Support

ATS is open source, so while it is freely available, your county isn’t Kitsap County, and you do things differently. You may be more comfortable with a different database. You may want to interface with different applications. You may want a completely different UI altogether.

Velosys, a software development firm based in Poulsbo, Washington, has been Kitsap County’s partner in implementing ATS, and is available to assist with ATS deployment for other counties. Whether you need software customization, deployment, training, or just consultation, Velosys stands ready to add value to your county’s operations.

General-Purpose Restful API
ATS has two parts: a UI and an API. The UI talks to the API only, it doesn’t access data directly.

The API is a general-purpose RESTful API that isn’t just for the UI; it can be accessed by any application that can make an API call. For example, your accountants can make a spreadsheet that lists everyone who hasn’t paid taxes so far this year. Your IT department can make a power app or a simple .NET app to track a specific situation in minutes. Once in ATS, all that valuable data is unlocked and usable by your county. And because the ATS UI uses the API exclusively, your API results will match with the ATS UI.

Kitsap County is using MsSql for their database, and ATS will work with MsSql with no modifications. We are using Entity Framework (EF) for all our database access, so using a different EF-supported database will be a seamless modification change. See https://learn.microsoft.com/en-us/ef/core/providers/?tabs=dotnet-core-cli to learn about all the databases EF can support.

ATS, Assessor Treasurer Software, is a property tax management software application in development by Kitsap County, Washington. Kitsap is considering open-sourcing the project and making it available to other counties.