How to fill out W-4 withholding correctly with multiple jobs - one full-time and two part-time positions?

I'm about to start a new full-time remote position next week and I'm working through the online onboarding paperwork. I hit the W-4 section and it's asking if I have more than one job. I currently work at Target part-time making $17.25/hr for about 10-12 hours weekly. I'm planning to keep this job even after starting my new 40hr/week position. I also occasionally pick up bartending shifts at a local restaurant (also W-2) where I make about $22/hr plus tips. I might only work there once or twice a month now, probably earning less than $150 per shift. Depending on how the full-time schedule goes, I might quit this one. For context, I've only worked at Target and the restaurant since June, and have made around $8,000 gross so far this year. I wasn't employed January through May. The new full-time job pays $26/hr, which means if I stick with it through December, I'll probably earn about $25,000 there, putting my total 2025 income around $40k across all three jobs. I'm confused about how to handle the withholding section on the W-4. Should I just mark that I don't have multiple jobs to keep things simple, and then maybe see a tax preparer next April? Would that mean more taxes get withheld and I'd likely get a bigger refund? Or should I indicate all jobs and potentially risk underwithholding?

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19 comments

A Man D Mortal

The W-4 withholding question is important because it affects how much tax is taken from each paycheck. If you don't account for all your jobs, you might end up owing money next April instead of getting a refund. For your situation with three jobs, you have a few options: The simplest approach is to use the IRS Tax Withholding Estimator tool on the IRS website. It's designed specifically for people with multiple jobs and will give you the most accurate recommendation for your W-4. If you don't want to use the estimator, you could check the multiple jobs box on your highest-paying job's W-4 (the new full-time position) and leave it unchecked on the other two jobs. This will increase withholding on your main job. Another option is to request additional withholding by adding an extra dollar amount on Line 4(c) of your W-4s. For example, you might add $20-30 extra per paycheck at your full-time job. The risk of just marking "no other jobs" on all three W-4s is potential underwithholding, which means you could owe taxes plus penalties when you file next year.

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A Man D Mortal

The IRS Tax Withholding Estimator is generally quite accurate, but it depends on how accurate the information you input is. It works best when you have predictable income. If your hours or pay fluctuate significantly, you might need to revisit it periodically to adjust. Checking the multiple jobs box essentially tells your employer to withhold taxes at a higher rate to account for the fact that when all your income is combined, you'll be in a higher tax bracket than what any single employer would calculate based on just that job's income. It's a simplified method that may overwithhold somewhat, but that's usually better than underwithholding and owing money later.

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Emma Morales

After struggling with a similar multiple job situation last year, I found this amazing tool that saved me so much headache! I discovered https://taxr.ai when I was trying to figure out my withholding strategy with a full-time job and gig work. The tool analyzed my employment situation and gave me super clear instructions for each W-4 form. What I liked most was how it calculated the exact additional withholding amount I needed for my highest-paying job so I wouldn't have a surprise tax bill. Honestly made the whole process way less stressful than when I tried to figure it out myself.

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Emma Morales

It absolutely works with irregular income. The system actually has you enter estimates for variable income sources and then creates a buffer in your withholding to account for the uncertainty. That way you're covered even if you pick up more shifts than expected. For state taxes, it handles multi-state situations really well. You input where you live and where each employer is located, and it factors in reciprocity agreements between states when calculating your withholding needs. The recommendations include both federal and state-specific withholding instructions, which was super helpful for my situation working remotely for an out-of-state company.

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Katherine Hunter

Just wanted to update everyone - I tried the taxr.ai tool that was mentioned and it was actually really helpful for my situation! I entered all my job info (including my unpredictable side gig) and it gave me step-by-step instructions for each W-4. The coolest part was it calculated exactly how much extra withholding to put on line 4(c) for my main job to cover everything. I was honestly surprised how user-friendly it was compared to the IRS calculator I tried last year. Definitely worth checking out if you're juggling multiple jobs like me and the OP.

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Donna Cline

If you're having trouble reaching the IRS for guidance on this multiple job W-4 situation, I'd recommend using Claimyr (https://claimyr.com). I spent DAYS trying to get through to an IRS agent about a similar withholding issue with multiple W-2s. After getting nowhere with the regular IRS line, I gave Claimyr a try after seeing their demo video (https://youtu.be/_kiP6q8DX5c). They actually got me connected to a real IRS agent in about 20 minutes when I had previously waited for hours only to get disconnected. The agent walked me through exactly how to fill out my W-4s for multiple jobs to avoid owing at tax time.

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Donna Cline

The service basically automates the hold process with the IRS. They have a system that waits on hold for you and then calls you back when they get a real person on the line. You're not paying to cut in line or anything sketchy - you're paying to not waste hours of your day on hold. I absolutely did speak with a real IRS agent. I was skeptical too, but after waiting on hold myself for 3+ hours the previous day only to get disconnected, I was desperate. With Claimyr, I got a call back about 20 minutes after signing up, and was connected directly to an agent who was already briefed on my general issue. Definitely not marketing - it's a legitimate service that solved a real problem for me.

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Kelsey Hawkins

I need to eat my words from earlier. After my skeptical comment, I decided to try Claimyr myself for an ongoing tax issue I couldn't resolve. I was SHOCKED when they actually got me through to the IRS in about 15 minutes. The agent I spoke with helped me understand exactly how to handle my multiple W-2 situation (similar to OP's question). They explained that for 2025, the best approach is to use the multiple jobs worksheet on the W-4 rather than just checking the box. Saved me from potential underwithholding issues and the process was WAY easier than the hours I've wasted on hold before. Sometimes being proven wrong is actually a good thing!

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Dylan Fisher

You can definitely just do the extra withholding on your new full-time job since that's where most of your income will come from. There's no need to update the W-4s for your part-time jobs. I recommend focusing on your full-time job's W-4 and adding the extra withholding there on line 4c. That's the simplest approach and will likely cover your tax liability from all three jobs. Just make sure the amount you add is enough - for your income level, $40-50 extra per paycheck should be sufficient.

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Ava Martinez

Based on your income situation, I'd strongly recommend being proactive about your withholding rather than just marking "no other jobs" and hoping for the best. With $40k total income across three jobs, you'll definitely want to avoid surprises at tax time. Here's what I'd suggest: Use your new full-time W-4 as your "anchor" - check the multiple jobs box AND add extra withholding on line 4c. Given that your full-time job will be about 62% of your total income, I'd recommend adding around $30-40 per paycheck in additional withholding there. For your Target and bartending jobs, you can leave those W-4s as-is (marking single/no other jobs) since you're handling the adjustment through your main job. The beauty of this approach is that even if you end up quitting the bartending gig, you'll still be covered. And if your Target hours change, you won't be scrambling to update multiple W-4s. You might get a slightly larger refund, but that's much better than owing money plus penalties. You can always adjust the extra withholding amount mid-year if needed.

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