Which forms are necessary for my 2025 French income tax declaration?

Hello,

I’m in the middle of organising my French income tax forms (this is my second year, but I’m submitting via paper again, as I find this simpler).

I’ve found the guide that you posted on the blog very helpful so far, but I wanted to doublecheck that I’ve understood correctly which forms I need to submit. I’m a micro-entrepreneur with an online tutoring business who has opted for the versement libératoire.

The tax office sent me paper copies of the 2042 K and 2042 CK PRO forms, and I’ve completed most of these, but I had a couple of questions regarding some sections:

For the 2042 K form, as a micro-entrepreneur, do I need to fill out Section 1 (traitements, salaires, pensions, rentes) or Section 8 (Prélèvement à la Source et Divers)?

Then, for the 2042 CK PRO form, have I understood your guide correctly - am I to only fill out the first page? Or are there sections later in this form which I need to fill out too?

My final question is, regarding the other forms that you mention in the guide (Form 2042-C, Form 2042 RICI, Form 2047), do I need to fill these out and send them even if they are not relevant and I have nothing to declare on them? (I have no rental income, pension income, tax credits, dividends, donations, etc. to declare; I already know that Form 3916 is relevant to me, so I will be completing this.)

Thank you for any advice you can give me!