I worked a regular taxed W-2 job most of the year but the last month I did IHSS and got a check of about $1200 in total for a couple weeks of work. I had put my W-2 of my other job and it was about $24000 gross annual income. I was going to get a few hundred back on my return but after I inputted the small IHSS check my whole return disappeared and it says I actually owe $1 for federal taxes. I'm worried about next year's taxes because I've been working fulltime with IHSS now for 2 more months and I have had much bigger checks. Am I going to owe a lot of money next year? I am not a live-in provider. I go to my own home and sleep.
When you entered your additional W-2, it increased your income. It could have put you in a higher tax bracket and/or it could have decreased some credits on your tax return. There's no way we can tell you exactly why your refund decreased without reviewing your tax return.
Review the TurboTax Help article Why did my refund drop when I entered a second W-2? for more information.
If your income increases in 2025, then you will have more taxable income, so your taxes will increase. You will end up owing if you don't have enough taxes withheld from your paychecks.
The IRS has a Tax Withholding Estimator that you can use to help you figure out if you will need to increase your tax withholding for your jobs. Use the Tax Withholding Calculator here.