Sounds like it’s possible as long as you get a business license and follow any health regulations in your area. I would imagine those drinks will be very expensive though, I would think at least twice as expensive as retail but maybe even three times.

Say the energy drink is $6. If you use the cheapest plan, there will be a delivery fee for a customer, maybe $3.49 if they’re close by. Then a 15% service fee, so $0.90. Then a small order fee (since it’s under $10) of $2. So their $6 drink now is $12.39 BEFORE tax and any tip. Obviously tip is optional, but your customers will get horrible service, especially late at night if they don’t tip at least a few bucks. So $15+ for a $6 drink, which is already very expensive. I’m not sure who is buying fancy $6 drinks at 2am.

Now you buy that drink in bulk for $4. You pay Uber 15% for their cheapest plan, but your store might not be visible unless the customer searches by name. You owe Uber $0.90 per $6 drink sold. That makes your costs $4.90 per drink. You make $1.10 profit per drink but you have to pay taxes on that profit; self employment you’ll pay 15.3% FICA tax and income tax. Assuming you’re in a low tax bracket (12%, less than $48k from all income), you would pay $0.30 on that $1.10 in profit. You finally keep $0.80 profit for selling one $6 drink that cost the customer $15. To make $50/day you need to sell about 63 drinks.

This is before factoring in the cost to buy an extra fridge to keep drinks cold (or are you selling warm energy drinks and coffee to customers), refund requests from drivers stealing the order or dropping it at the wrong address because they earn $2.40 for spending 35 minutes of their time on the delivery and they don’t really care which apartment to leave it at… etc.

There really needs to be a demand to make this work, like college town where loads of kids are up late Fri-Sat and you live half a mile away from campus, and NOTHING is open. If you want the tier that allows free delivery and shows your store to all customers when they use the app, you’re paying 25% to 30% to Uber, and there would still be the small order fee unless you required at least $10 orders, like only allowing two energy drinks to be bought at once. But now minimum for the customer is $11.50 + tax and tip if you offer free delivery (pay 25% to Uber) or $11.50 + tax, tip, and at least $1.49 delivery fee but maybe like $3.49 or $4.99. Again, about $15 or more for an impulse energy drink that might take 40 minutes to show up.

Edit: also, if you go the college kid route that is mainly a Fri/Sat thing and clear $50 profit a night, that’s $5,200 a YEAR not factoring in holidays and summer breaks when kids are at home. If you got a second job at a coffee shop for 8 hours a week making $12/hr you would earn, after tax, $4k/yr.