Who should claim our child on taxes if we're unmarried but living together?
Hey tax folks, I'm in a bit of a situation with my girlfriend. We've been living together for almost 3 years now and have a 2-year-old daughter. We're not married (no plans to be anytime soon tbh) but we're committed and share expenses pretty equally. I make about $62,000 as a project manager while she makes around $48,000 as a teacher. Tax season is coming up and we're confused about who should claim our daughter as a dependent. We both contribute to her expenses, but I pay slightly more for daycare and health insurance since I carry her on my plan. My girlfriend usually spends more on clothes and daily needs though. Last year we just decided she would claim our daughter because someone told us the lower income person should do it, but I'm not sure if that was right? I've heard about this head of household thing too but don't really understand if one or both of us can use that status. Does it really matter who claims her? Will we get a bigger refund if one of us claims her versus the other? Any advice would be super appreciated because we want to do this right!
21 comments


Andre Dubois
This is actually a common situation and there are specific IRS rules about who can claim a child when parents aren't married but live together. The IRS has what they call "tiebreaker rules" for exactly this situation. Since you both live with the child for the same amount of time, the next tiebreaker is that the parent with the higher Adjusted Gross Income (AGI) gets to claim the child. In your case, that would be you with the $62,000 income, not your girlfriend with $48,000. However, there's more to consider here. Only one of you can file as Head of Household, which generally provides better tax benefits than filing Single. The parent who claims the child as a dependent typically gets to file as Head of Household. Also, claiming your daughter means eligibility for other tax benefits like the Child Tax Credit (worth up to $2,000 per child) and potentially the Child and Dependent Care Credit for those daycare expenses. You might want to calculate your taxes both ways to see which arrangement benefits your household the most financially. Sometimes it makes sense to let the lower-income parent claim the child if they can make better use of the tax credits.
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Carmen Flores
•Thanks for explaining those tiebreaker rules - I had no idea! So technically according to the IRS rules, I should be the one claiming her since I make more? But you mentioned it might actually be better for her to claim our daughter anyway? We're confused about this Head of Household thing too - does it make a big difference compared to filing Single?
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Andre Dubois
•According to the strict IRS tiebreaker rules, yes, you would be the one entitled to claim your daughter since you have the higher AGI. However, the IRS allows parents to decide which one claims the child if you both agree - as long as all other qualifying criteria are met. Head of Household filing status does make a significant difference compared to filing Single. It provides a larger standard deduction ($20,800 vs $13,850 for Single filers in 2025) and more favorable tax brackets. This typically results in a lower tax bill. Additionally, the person who claims your daughter would be eligible for the Child Tax Credit and potentially other child-related credits like the Child and Dependent Care Credit for daycare expenses.
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CyberSamurai
After seeing this post, I wanted to share my experience! I was in a similar situation with my partner last year and we were going back and forth about who should claim our son. I found this awesome tool called taxr.ai (https://taxr.ai) that literally saved us hundreds. What's cool about it is you can upload your tax documents and it analyzes them to show you different scenarios - like who should claim the kid or what filing status to use. For us, it turned out that having my partner claim our son was better overall even though I make more money because of her student loan situation. The best part was it took all the guesswork out and showed us exactly how much we'd get back either way. Super straightforward and made the decision easy!
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Zoe Alexopoulos
•Does this taxr.ai thing work if you have multiple kids? My girlfriend and I have twins and I wonder if we should each claim one or if one of us should claim both? We tried figuring it out last year and I think we messed up.
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Jamal Carter
•I'm kinda suspicious of these online tax tools. How do you know it's giving accurate advice? Do they guarantee their calculations? Last thing I need is an audit because some website gave me wrong info.
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CyberSamurai
•Yes, it absolutely works with multiple kids! It can run different scenarios like each claiming one child versus one person claiming both. It will show you exactly how each situation affects your total household tax outcome so you can make the best decision. As for accuracy, I totally get being cautious. What convinced me was that it's using the same tax calculation engines that professional preparers use, not just some random algorithm. They explain exactly which tax rules they're applying and how. Plus they offer audit assistance if anything does get flagged, but I've used it for two years now with zero issues.
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Zoe Alexopoulos
Just wanted to follow up about taxr.ai since I mentioned my twins situation. I actually tried it after seeing the recommendation here and holy crap, what an eye-opener! We had been doing our taxes completely wrong for TWO YEARS. Turns out I should've been claiming both kids and filing as Head of Household while my girlfriend filed as Single. The difference was almost $3,200 compared to how we filed last year (each claiming one kid). The tool showed us step by step why this arrangement works better with our specific incomes and deductions. It also flagged that we could amend last year's return to get money back. Just submitted those amendments and waiting now. Can't believe we missed out on so much money before!
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Mei Liu
If you're still having trouble figuring this out, you might want to call the IRS directly and ask them. I know, I know - everyone says you can't get through to them. But I discovered this service called Claimyr (https://claimyr.com) that gets you through to an actual IRS agent usually within 15 minutes instead of waiting for hours or getting disconnected. You can see how it works here: https://youtu.be/_kiP6q8DX5c I was skeptical at first but I was desperate to resolve a dependent claiming issue with my ex. Used Claimyr and got through to an IRS agent who explained exactly what I needed to do in my situation. It was such a relief to get an official answer straight from the source instead of guessing or getting conflicting advice online.
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Liam O'Donnell
•How does this actually work? The IRS phone lines are notoriously impossible to get through. Are they somehow skipping the line or what? Seems too good to be true.
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Amara Nwosu
•Yeah right. Nobody gets through to the IRS. This is definitely a scam. I've tried calling them like 20 times this year about a refund issue and never got through once. There's no magic "skip the line" button.
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Mei Liu
•They use a technology that continuously redials and navigates the IRS phone tree for you. When a line opens up, it calls your phone and connects you directly to the agent. There's no line skipping - it's just automating the frustrating part of having to keep calling back. I was definitely suspicious too, but it's legit. The way I see it, the IRS phone system is basically like trying to get concert tickets - keep hitting redial and hope you get lucky. This service just does the redialing for you, and you only pay if you actually get connected to an agent. My call was with an actual IRS employee who could access my tax records and everything.
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Amara Nwosu
Ok I have to eat my words about Claimyr. After posting that skeptical comment I was still desperate about my refund situation so I thought what the hell, might as well try it. It actually worked. I got through to an IRS agent in about 22 minutes (not quite the 15 they advertised but WAY better than my previous attempts of never). The agent was able to see that my refund was held up because of a discrepancy with a 1099 form I received and helped me understand what documentation I needed to submit to resolve it. I'm still shocked that it worked. Would have saved me months of stress if I'd known about this earlier. Sometimes being wrong feels pretty good lol.
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AstroExplorer
I think everyone's missing something important here. If you guys are splitting expenses pretty equally, you might want to consider alternating years for who claims your daughter. My partner and I do this - I claim our kid in even years, she claims in odd years. This way both of you get to benefit from the tax advantages periodically, and it feels fair. Just make sure you're clear with each other about when the switch happens so you don't accidentally both try to claim your daughter in the same year (that will definitely trigger an IRS notice).
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Giovanni Moretti
•Is alternating years actually allowed by the IRS? I thought the tiebreaker rules were strict about who can claim the kid each year. Wouldn't this raise red flags?
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AstroExplorer
•Yes, alternating years is completely allowed as long as both parents agree to it. The tiebreaker rules only come into play when there's a dispute or both parents try to claim the same child in the same year. Many couples in your situation use this approach because it feels fair and keeps both parents eligible for child-related tax benefits over time. The IRS doesn't have any rules against this arrangement. Just make sure you're both clear about which year belongs to whom, and consider putting the agreement in writing just to avoid any confusion down the road.
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Fatima Al-Farsi
Quick piece of advice nobody mentioned yet - whoever claims the child should also be the one to claim any childcare expenses on Form 2441 for the Child and Dependent Care Credit. That credit can be worth up to $3,000 for one kid! Since you mentioned paying more for daycare, you might benefit more from claiming your daughter even beyond the dependent exemption itself. Also worth checking if either of your employers offers dependent care FSA - that's pre-tax money you can use for daycare which is basically an automatic 22-24% discount depending on your tax bracket.
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Dylan Cooper
•My employer offers that FSA thing but I never understood how it works with the tax credit. Can you use both? Seems like double-dipping.
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Abigail Spencer
•You can use both but not for the same expenses - that would indeed be double-dipping which the IRS doesn't allow. Here's how it works: If you put money into a dependent care FSA, you have to subtract that amount from the childcare expenses you claim for the Child and Dependent Care Credit. So if you spent $8,000 on daycare but used $5,000 from your FSA, you can only claim the remaining $3,000 for the tax credit. The FSA is usually better because it's pre-tax savings (immediate 22-24% benefit), while the credit phases out at higher incomes. But you can definitely use both strategies together to maximize your overall tax savings on childcare costs.
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Victoria Jones
Carmen, I've been in a similar situation and here's what I learned after making some mistakes early on. The key is to run the numbers both ways before deciding - don't just go with the "lower income should claim" rule of thumb. Since you make more ($62k vs $48k), the IRS tiebreaker rules technically give you the right to claim your daughter. But that doesn't mean it's always the best financial decision for your household overall. Here's what I'd suggest: Calculate your taxes both ways. Look at the total refund/tax owed for both of you combined when (1) you claim her and file Head of Household vs (2) she claims her and files Head of Household. The difference can be significant - sometimes hundreds or even over $1000. Don't forget to factor in the Child and Dependent Care Credit for those daycare expenses - that can be worth up to $3,000 and only the person claiming the child can use it. Since you're paying more for daycare and health insurance, this might tip the scales in favor of you claiming her. Also consider your girlfriend's student loan situation if she has any - sometimes the education credits and deductions can make it more beneficial for the lower-income parent to claim the child. Bottom line: The IRS doesn't care who claims her as long as you both don't try to claim her in the same year. So run the numbers and go with whatever maximizes your household's total tax benefit!
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Mason Stone
•This is really helpful advice! I'm new to navigating taxes as an unmarried couple with a child, and I had no idea there were so many factors to consider beyond just who makes more money. The part about calculating both scenarios makes total sense - I never thought about looking at our combined household benefit rather than just individual returns. And I definitely didn't know about the Child and Dependent Care Credit being tied to whoever claims the dependent. That could be a game-changer since daycare costs are one of our biggest expenses. Quick question - when you say "run the numbers both ways," are you talking about using tax software to calculate hypothetical scenarios, or is there a simpler way to estimate the difference? I'm worried about making the wrong choice and leaving money on the table like some others mentioned they did.
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