2400 N 24th St Quincy, IL - 217.242.5707
Welcome
Lantz Tax & Accounting Services is a small town accounting firm that is located in Quincy, Illinois. In March 2007, Mavis Lantz, CPA, opened Lantz Tax & Accounting Services when her dream of owning her own business came a reality. She has over 30 years of experience and specializes in a variety of areas. Please check out our Areas of Practice page if you are interested in learning what we do!

IRS IP PIN
If you need to retrieve your IP Pin number online, please click here. Please click the blue box that says "Get an IP PIN." Once you click that button, you will be prompted to either sign in to your ID.me account or create an account. Once logged in, you will find your IP Pin under the Profile tab.
**Per the IRS website, online IP Pins will not be available until January 6, 2026.**
Our 2025 Newsletter is now available!
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