Pedants will argue that you shouldn't refer to Code Section 183 - Activities not Engaged in For Profit as the "hobby loss rule", because the word hobby appears nowhere in the statute. The pedants scored a point in 2021, but I will still be sticking with the term. It looked like a slow year for hobby loss developments, but we finished with two major cases including a big taxpayer win. Let’s take a look.

Year-End Tax Planning Under the One Big Beautiful Bill Act (OBBBA)
The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, doesn’t reinvent the tax code it refines it. Much like its predecessor, the Tax Cuts and Jobs Act (TCJA), it keeps many familiar provisions in play: lower rates, expanded SALT flexibility, and broader deductions. But here’s the real story: While most tax pros are busy memorizing what stayed the same, the planners who will win 2025 are the ones spotting what just became possible. OBBBA quietly opens a handful of powerful new planning windows — each one capable of delivering real, measurable savings for the right client. The key is knowing which changes are worth your time… and which are just political garnish. Below, we’ve curated the most strategic, high-impact moves to make before year-end 2025, the ones that separate the advisors who explain the law from those who leverage it. Most tax pros will stop at what changed. The smart ones will keep reading to learn how to use it.


