How to determine ad valorem tax

by Adelaida “Ady” M. Artime, P.A. 03/23/2025

Latin for "according to value," the term "ad valorem" is common in tax conversations. An ad valorem tax is flexible and dependent on the value of the specific asset, product or service. If you're a property owner, you're paying an ad valorem tax on your property taxes. To better understand how this term is used, here is a short guide to how ad valorem tax is calculated:

How do you find the ad valorem tax value?

Fair market value - Fair market value is usually determined by a real estate agent after a careful examination of the property and local market. Fair market value is based on factors like size, location, features and condition of the home. It can also be affected by the values of similar properties in your neighborhood.

Appraisal value - Appraisal value is found through a professional home appraisal. Appraisers conduct a thorough inspection of your home to make sure it meets specific standards. Things like condition, age and visual appearance all factor into an appraisal value.

Assessed value - Assessed value is calculated by taking the fair market and appraisal values and applying the local tax assessment rate. Assessment rates are different depending on the municipality and can also change.

These different values combine to help you find the ad valorem tax value of a property. In turn, this value affects how much you owe in annual property taxes. Regardless of whether you want to buy, sell or refinance a home, knowing this term can help you better navigate the world of home finances.

Familiarize yourself with the differences between fair market value, appraisal value and assessed value to gain a better understanding of how your property taxes are calculated.

About the Author

Adelaida “Ady” M. Artime, P.A.

In her role as a real estate and relocation specialist in South Florida and Northern Virginia, Ady Artime prides herself on providing the highest level of service, confidentiality and professionalism to her clients. Based on her own experience as a government liaison, Ady is in familiar territory working with high powered individuals. She possesses a discreet and confidential work ethic, and her keen eye, attention to detail, and experience with multi-million dollar properties have earned her a high-profile, loyal clientele that expect the best from their realtor.

Known for her expertise and strong background in interior design, she stands out from other real estate agents. When a satisfied client says that Ady knows real estate "inside and out", the statement is to be taken literally. Over the course of her career, she has received recognition as an award-winning interior designer. She has designed and implemented interiors for countless luxury projects throughout the United States, and Europe. Her extensive knowledge of all facets of design, including working with architects and construction teams, led to a natural progression into the real estate arena and gives her a definite edge over the competition in serving her clients.

As and agent in South Florida and North Virginia, Ady lends her real estate expertise and design savvy to buyers and sellers. Ady's mission is to develop a faithful, repeat clientele by providing them with superior service and value. She is passionate about her work and takes the time to understand each client's needs and goals to accurately assess the options she provides. From overseeing the staging of a listed property in order to fetch the highest possible price to analyzing a potential purchase from a design and architectural perspective.