Get your taxes done using TurboTax

Can someone please explain: I started my job in October 2022. My W2 wages are $3521.39. When I completed my W4 - I selected Head of Household & Step 3 - I put $4000 (for my 2 dependents) - My question is why $0 of federal taxes were taken out? Do I have to make a minimum amount before federal taxes are taken out? I want to make sure my W4 is right for 2023 and the correct taxes are taken out. Thanks