You may be able to see if a retailer still sells the 2024 version.If you can't get the one time purchase, you would need to see if the cost is beneficial.For real estate -  Quickbooks desktop > Quickbooks online because you can set up multiple entities within quickbooks desktop and not pay an additional cost per entity that Quickbooks online would charge you.Best of luck! 

Over the past decade, I’ve built and managed purpose-driven homes in CA that serve communities while generating stable, long-term cash flow.In addition to running care homes, I also consult with aspiring care home owners across multiple states, including Texas, Arizona, and Michigan (Detroit area).

Just one additional option.  

These are professionals with additional training and a stricter code of ethics.

That's an ADDITIONAL capitol investment made. 

There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.

Accessory Dwelling Units (ADUs) are an increasingly popular way to generate additional rental income on an existing property.

In addition to @Nicholas L.'

You cannot get any meaningful answers until you specify what is your "side gig", how much money it's going to bring and how much expenses it's going to incur, and what kind of expenses.And, as a rule of thumb, unless you clear $50k after all expenses, you probably will not benefit from any entities tax-wise. 

In addition, when you have leverage you have the other benefits which @Ali Boone mention.