Being a startup or not doesn't protect you from poor management choices :-). Companies that don't need outside investment any more are no longer start ups. Getting some additional capital to expand it not fatal if they can't secure it, they just can't expand. For a start up if they can't close the next round of funding, they die.
Answering the next question is a bit trickier. You said "nets (profit) me $5k/month" which can be interpreted in a number of ways. So I'll answer with the two most common interpretations.
If you're SaaS business can pay you and anyone else needed to run it, a salary and some benefits, and at the end of the year, after accounting for depreciation of assets, expenses, and taxes is $5K in the 'black' (so the LLC, S-Corp, what have you, could 'bank' that $5K for future expansion) then no it isn't a start up any more. It may be a boutique business but its a going concern.
If you run a SaaS business with no employees, and use the revenue to pay your living expenses, have no benefits and you happen to end up with $5K unspent at the end of the year, its more of a consultancy than a startup.
Good examples in an adjacent field are accounting companies versus accounting consultants. My mother-in-law ran her own little tax accounting business for years. Not a startup (it was self sustaining) but not large either.
Answering the next question is a bit trickier. You said "nets (profit) me $5k/month" which can be interpreted in a number of ways. So I'll answer with the two most common interpretations.
If you're SaaS business can pay you and anyone else needed to run it, a salary and some benefits, and at the end of the year, after accounting for depreciation of assets, expenses, and taxes is $5K in the 'black' (so the LLC, S-Corp, what have you, could 'bank' that $5K for future expansion) then no it isn't a start up any more. It may be a boutique business but its a going concern.
If you run a SaaS business with no employees, and use the revenue to pay your living expenses, have no benefits and you happen to end up with $5K unspent at the end of the year, its more of a consultancy than a startup.
Good examples in an adjacent field are accounting companies versus accounting consultants. My mother-in-law ran her own little tax accounting business for years. Not a startup (it was self sustaining) but not large either.