March 12th, 2026 – “Help! I Can’t Stop Making Tax Spreadsheets!”

[TactiFail]

Hello Hackers!

This month we are joined by lambda who will be presenting their (very timely) talk “Help! I Can’t Stop Making Tax Spreadsheets!”:

> Have you ever wondered how the math adds up for your paychecks? Do you like changing numbers around to imprecisely model how your budget should be set up for next week’s little treats? Want to see if your AGI could fit under the Free File Alliance’s thresholds next year? While I can’t be your financial advisor or trainer for Excel Esports, I can show you how some of the math works and where to figure it out, where this might end up being useful, and why LibreOffice ended up being my tool of choice for this specific task. (I’ll also cover the FFA’s options, because free file doesn’t have to mean doing all the math yourself.)

> Bio: lambda (any/all) is a practicing computer scientist, number cruncher, user of the third person, and everything-doer. A professional SRE with overlapping experience in both software engineering and DevOps, they have interests in security and privacy with special consideration for consumer rights.

Meeting will be on Discord. If you need an invite, look no further: https://discord.gg/HYzJcfVGjH

https://dc612.org/index.php/2026/03/09/march-12th-2026-help-i-cant-stop-making-tax-spreadsheets/