Do I file for 2025 or 2026 taxes?

I'm sorry if this is the most obvious and dumbest question, but for my own anxiety I thought I'd ask -

I'm starting a new job next week and will probably make about $6000 or less by April 15th - and basically want to know, do I file for 2025 taxes or 2026 for it? Will the company send out the right forms in time for me to file this year?