The long term apartment rent its perfect . Take care to have the rent contract on your name , or a rent contract for the space you using.
After that go to the IRS and say you work on your own too as an online streamer or affiliate marketer and you get paid n ur bank account ( for example monthly pay) and this is your part time job. They will ask you an estimation of your earnings. Tell them 350 euros per month. So they open you like an micro bussines ( not being corporate you pay less taxes) At the end of the year take all your bank account incomes ( or monthly if they ask so ) and bring them at the accountant with expenses bills too like ( pc for ex , camera , do not include the sex toys
) ) Tell accountant that you use a room of your apartment for this activity so he includes a part of the rent and light too.
No matter if then in your bank account comes more money , you will pay taxes for what hit your bank account no matter if you declared only 350 euros per month.
Registring your own bussines will help and fasten your Temporary residence aproval. Also it will fasten your permanent residence in the future because you are able to mantain yourself without depending of someone.
If you go for this procces after the temporary comes then it will help you with obtaining very easy the next residence after 1 year.
Portugal its very slow in paper work , people do not stress so much
) but once you have done it then you are safe and you do not have to run as a donkey every year.
If you go to find an accountant first he will tell you too where to go and fill the proper papers. just tell him you are an online streamer or online entretainer or webmaster and the most important tell him you get paid monthly or 1 time in 2 weeks via your bank account ( because if you go for alternative like epayments or paxum cards and daily pay it will be an paper nightmare). If you get extra money on ePayments or Paxum then do not tell anyone
just safe them or have fun
)) they do not have to know all
You are very welcome
You can ask advice anytime i will try to answer with what i know and when i can . Kisses.