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Brian Galle

@bdgesq.bsky.social

Berkeley law prof guy, erstwhile Georgetown, DOJ, & points in between. Mostly boring tax stuff; occasional dollops of nonprofits, law & econ, etc. Could be arguing in my spare time.

6,712 Followers  |  553 Following  |  759 Posts  |  Joined: 15.10.2023  |  2.0376

Latest posts by bdgesq.bsky.social on Bluesky

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Billionaire tax author says fears about it unfounded Few of the ultra-wealthy are likely to leave, he says.

One of the main arguments voiced by opponents of the proposed billionaire tax here in California is that it will drive the ultra-wealthy to leave the state. That fear, says initiative co-author @bdgesq.bsky.social, is overblown. In an interview with the @sfexaminer.bsky.social Galle explained why.

11.02.2026 21:00 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Taxation without representation, you might call it.

11.02.2026 20:33 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Indeed, and yet a kind of inevitable result of current taxpayer standing rules.

10.02.2026 17:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It is interesting to think about ER as potentially similar to pension savings where the avg effects we can see in data might be driven by small group of big responders while many firms are unresponsive.

10.02.2026 16:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

An issue that I think is at the heart of many current unemployment insurance problems, and from two people I'll always want to read more from. Click.

10.02.2026 15:55 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

I mean, fair; it was written by a tax professor and that shows. But you can also describe the general thrust of the incentive to employers pretty easily.

10.02.2026 15:49 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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How to Tax the Ultrarich Learn about the Fair Share Tax (FAST), a practical, constitutionally sound plan to tax the ultrarich, close loopholes, and prevent dynastic wealth accumulation.

Our fellow @bdgesq.bsky.social helped design the California wealth tax now being protested by the pro-billionaire advocates.

Last month, he laid out a national approach to taxing extreme wealthβ€”so public services can be sustainably funded.

Because the tax code clearly isn’t working as intended.

09.02.2026 17:53 β€” πŸ‘ 40    πŸ” 13    πŸ’¬ 2    πŸ“Œ 1

Shut it all down. We're never going to top this

07.02.2026 13:38 β€” πŸ‘ 1322    πŸ” 166    πŸ’¬ 63    πŸ“Œ 5

You're welcome! But really, 20 pages are bibliography, so it's only 160 pages. πŸ˜†

06.02.2026 20:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Billionaires march leader ID'd, says effort sincere Startup founder not billionaire, but supports them.

News flash! March to protect billionaires from tax too small for their accountants to even notice is unlikely to draw favorable crowds, billionaire-backers say:

www.sfexaminer.com/news/technol...

(also quotes me; for the data I'm citing, see www.nber.org/papers/w34170)

06.02.2026 17:31 β€” πŸ‘ 4    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
The Role of Unrealized Gains and Borrowing in the Taxation of the Rich As deficits rise and concerns about tax avoidance by the rich increase, we study how unrealized gains and borrowing affect Americans’ income taxes. We have four main findings: First, measuring β€œeconom...

Kate, would love your thoughts about whether LLC borrowing could be an important source of missing data in this recent, influential, study of high-earner borrowing:

repository.law.umich.edu/law_econ_cur...

Also scraping and parsing ucc-1 text seems not hard. My DMs, as they say, are open.

06.02.2026 04:51 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I do hate it but would probably like it better if I were still a 20 minute walk to good seats. Add Darryn Peterson to AD, Trae, Sarr, and some of the guys who aren't ready yet but getting there and you have at least a fun team.

04.02.2026 19:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

But also definitely read Ray's book it's great.

03.02.2026 22:10 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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How to Tax the Ultrarich Learn about the Fair Share Tax (FAST), a practical, constitutionally sound plan to tax the ultrarich, close loopholes, and prevent dynastic wealth accumulation.

Hey, I'm aware of another new book that directly relates tax policy to these data on how little of their lifetime earnings the ultrarich actually manage to spend. What's that one again? Oh, yeah, it's:
rooseveltinstitute.org/publications...

03.02.2026 20:32 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Retweeting for the kid in the t-shirt. The guy dressed as the Monopoly top-hat character...I mean, I chuckled, but a bit easy. Let's get creative out there, people.

03.02.2026 01:36 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 1

Oh wow, uh okay full disclosure we are receiving tremendous amounts of cash to be here.

01.02.2026 19:52 β€” πŸ‘ 91    πŸ” 18    πŸ’¬ 1    πŸ“Œ 0
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How to Tax the Ultrarich Learn about the Fair Share Tax (FAST), a practical, constitutionally sound plan to tax the ultrarich, close loopholes, and prevent dynastic wealth accumulation.

Our fellow @bdgesq.bsky.social helped design the California tax. Now, he’s advancing a nationwide ultra-wealth taxβ€”to rein in extreme wealth and, by extension, curb the political power that currently comes with it in every state in the country.

Read the plan here:

02.02.2026 15:24 β€” πŸ‘ 16    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

"The butlers' march"

01.02.2026 22:03 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Apparently, this is real. Or if it's actually by that Borat guy, he created a very, very deadpan web site.

Anyway, imagine the vanity & self-regard it would take to organize a protest *this* week and it's against a 1% annual tax on billionaires.

01.02.2026 03:05 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

@oxfaminternational.bsky.social reports billionaire wealth has reached a new peak. Policy needs to catch up.

The FAST proposal from @bdgesq.bsky.social offers a practical way to tax the ultrarich in the US ⬇️
https://bit.ly/4btkkp0

31.01.2026 19:50 β€” πŸ‘ 7    πŸ” 8    πŸ’¬ 1    πŸ“Œ 2
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Here's the skinny on the California wealth tax ballot measure

Six months ago, we told you all about how NYC millionaires wouldn’t run for the hills if Mamdani won and raised their taxes.

Now, we’re debunking the same myth with the new California billionaire tax ballot measure.

Learn more in our new Closer Look:
patrioticmillionaires.org/perspectives...

30.01.2026 23:54 β€” πŸ‘ 35    πŸ” 13    πŸ’¬ 0    πŸ“Œ 0

ICYMI, this is one of the coolest projects I’ve peeked behind the curtain on.

If you’re a tax nerd this mechanism is worth your time to understand

30.01.2026 12:27 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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California billionaires’ revolt over a 1% annual tax is β€˜nonsense,’ architect says: A 1% annual tax won’t doom anyone’s business | Fortune UC Berkeley professor Brian Galle told Fortune he’s an β€œenthusiastic capitalist” and his tax ideas have nothing to do with harming the U.S. economy.

β€œI’m interested in how things work. And right now, it [capitalism] doesn’t seem to be working well,” Professor Brian Galle (@bdgesq.bsky.social) spoke to @fortune.com about his new book, How to Tax the Ultrarich: https://bit.ly/3LTOA1V

30.01.2026 04:14 β€” πŸ‘ 18    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
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How to Tax the Ultrarich Learn about the Fair Share Tax (FAST), a practical, constitutionally sound plan to tax the ultrarich, close loopholes, and prevent dynastic wealth accumulation.

In short, the FAST offers a path towards getting a more genuinely progressive tax system that is hard for ultrarich investors to dodge, while fitting into the narrow legal path the Court is willing to accept. Read more: bit.ly/4rk6wBM
12/12

29.01.2026 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

As a special transition rule, anyone who makes the election to pay early within the first 2 years of the new regime would just pay capital gains, not the extra FAST charge. That would strongly incentivize investors to pay tax on their existing $2-4 trillion in untaxed gains right away.
11/12

29.01.2026 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

One other key element is that taxpayers would have the option to pay earlier than sale. This is very similar to existing rules for interests in foreign mutual funds, known as PFICs. We want people to make the election b/c we want that money within Congress’ 10-year budget window.
10/12

29.01.2026 18:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

What this means economically is wealthy investors would no longer have a tax reason to hold onto their property. Government would get the same revenue as it would have under a wealth or MtM tax. We'd get the progressivity, too. Everything would look like wealth or MtM tax, except the timing.
9/12

29.01.2026 18:33 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0

The FAST taxes a successful investor who sells in an amount that leaves them with exactly the $$ they would have had if they had been paying annual tax all along, and re-investing the remaining proceeds. So the rate is higher the more the property has increased in value.
8/12

29.01.2026 18:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

My proposal – which I call the Fair Share Tax, or FASTβ€”aims to get us the revenues and incentives of an MtM tax (taxing gains/losses each year regardless of sale) while still fitting within the Court’s definition of β€œincome” as happening only at sale. The way to do that is to adjust the rate.
7/12

29.01.2026 18:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

But at the federal level, there is a constitutional problem. In 2024, SCOTUS suggested that broad-based wealth & MtM taxes would likely be inconsistent with the 16th Am. definition of β€œincome.” That claim is silly & ahistorical. So is a lot of what this Court says, but it’s the law right now.
6/12

29.01.2026 18:31 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

@bdgesq is following 20 prominent accounts