Yeah so gambling losses are deducible at least in my state. So if I had a losing 2 week session, then I would take 30% of those loses out of my savings account.
So yeah the basic idea is, put 15% of the prior year to start the 4%APY on a larger dollar amount. Once that 15% is your current tax liability you can start putting away 30% of your bi weekly profit into it.
Yeah so the idea is to "tax plan", but like you said you may not make as much as you did the previous year which is fine because the savings account money is yours! Some other people will buy short term bonds like 3-6 months and get 5% APY. (US tres)
I limit my risk with sportsbetting by hedging and arbitraging, so I have not had a losing month. Because of site limits I may not make $100k+ this year, but am still implementing the same tax planning strategy.
* FYI I only use regulated sportsbooks in the US that are available in my state, and do not use crypto sports sites.