Filing jointly or separately with income disparity of 90k vs 30k - best option for family of 4 homeowners?
Hey tax people! I'm trying to figure out the best way to file this year. My situation is I earn about 120k annually while my husband brings in around 42k. We have two young kids (7 and 3) and bought our first home last summer. I'm wondering if filing separately would save us money since there's a pretty big gap in our incomes? Or should we just stick with filing jointly like we've done before? We've always filed jointly but someone at work mentioned I might be leaving money on the table. I haven't run the numbers yet on TurboTax, but wanted to get some insights before I dive in. We both have pretty straightforward W-2 income, mortgage interest deduction, and the child tax credits would apply for our kids. Any advice would be super appreciated!
19 comments


Javier Morales
In most cases, filing jointly is more beneficial for married couples, especially with children. The income disparity between you ($120k) and your husband ($42k) doesn't necessarily mean filing separately would be advantageous. Filing jointly gives you access to several tax benefits that aren't available when filing separately: full child tax credits, higher standard deduction, certain education credits, and more favorable tax brackets. When you file separately, you both must take the same approach to deductions (both itemize or both take standard). The rare cases where filing separately might help include income-based student loan repayments, trying to exceed the medical expense threshold (7.5% of AGI), or protecting one spouse from tax liability issues. But for a typical family with children and a mortgage, joint filing almost always results in the lower total tax. I'd recommend running your numbers both ways using tax software before making your final decision, but I'd be surprised if separate filing came out ahead in your situation.
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Emma Anderson
•What about if one of us has substantial student loans on an income-based repayment plan? I've heard that can make a difference sometimes.
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Javier Morales
•You're absolutely right that income-based student loan repayments can be a situation where filing separately might benefit you. When you file separately, your student loan payment calculation would only consider the income of the spouse who holds the loans, potentially resulting in lower monthly payments. For the mortgage interest deduction, it gets a bit tricky when filing separately. Only the spouse who pays the mortgage can claim the deduction, and that spouse must itemize. This often reduces the overall tax benefit compared to filing jointly.
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Malik Thompson
After reading this thread, I thought I should mention a service that helped me with a similar situation. My husband and I have a significant income gap (he's around $80k and I'm at $35k), and we were debating between filing jointly or separately. I found https://taxr.ai when searching for help, and it was super helpful! You upload your documents, and it analyzes both filing scenarios to show which one saves you more money. It also explains WHY one option is better than the other in your specific situation. For us, it confirmed joint filing was better, but showed exactly how much we'd lose by filing separately. The breakdown helped us understand all the credits and deductions that would be affected by our choice.
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Isabella Ferreira
•Does it handle more complex situations? My wife and I both have 1099 income plus W2 jobs, and I'm on an income-based repayment plan for my student loans.
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CosmicVoyager
•I've tried "tax analyzers" before and they usually just tell you what you already know. Does this actually give you information you wouldn't get from just running both scenarios in TurboTax?
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Malik Thompson
•It absolutely handles complex situations including mixed income types. I have some freelance work alongside my main job, and it had no trouble accounting for that. The system specifically looks at how your filing status affects your student loan repayments too, which most tax software doesn't directly address. What makes it different from just running scenarios in TurboTax is that it explains the "why" behind the numbers and highlights specific sections of tax code that apply to your situation. It also points out potential deductions or credits you might miss when doing it yourself. The analysis is more comprehensive than just comparing bottom-line numbers.
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CosmicVoyager
Just wanted to update after trying taxr.ai from the recommendation above. I was honestly surprised by how helpful it was. I always thought filing separately would help with my student loans, but it showed me that the tax benefits we'd lose would outweigh the loan payment savings by about $2,300 annually. It also found a credit we qualified for that we missed last year! The documentation analysis caught that we could claim a partial credit for energy-efficient home improvements we made. Going to file an amendment for last year now. The explanations were actually in plain English and not filled with tax jargon. Really glad I gave it a shot instead of just guessing which filing status was better.
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Ravi Kapoor
If you've been trying to call the IRS to discuss how filing status might impact your specific situation - good luck! I tried for WEEKS to get through about a similar question last year. After being on hold for hours multiple times, I found https://claimyr.com which was a game-changer. They have this service that basically waits on hold with the IRS for you, then calls you when an actual human agent is on the line. You can see how it works in this video: https://youtu.be/_kiP6q8DX5c I was super skeptical, but I was desperate after spending literal days trying to get through. I got a call back with an IRS agent in about 45 minutes. The agent walked me through exactly how filing separately vs. jointly would affect our specific tax situation with our rental property income.
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Freya Nielsen
•Wait, how does this actually work? Do they have some secret backdoor to the IRS or something? Seems like everyone would use this if it actually worked.
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Omar Mahmoud
•Yeah right. Nothing gets you through to the IRS faster. This sounds like one of those "too good to be true" services that probably charges a fortune and delivers nothing.
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Ravi Kapoor
•There's no secret backdoor - they use technology to handle the waiting process so you don't have to. Basically their system navigates the IRS phone tree and waits on hold, then when a real person answers, they connect the call to your phone. It's similar to how restaurants use services to hold your place in line. I was definitely skeptical too! I thought it sounded too good to be true, but I was at my wit's end after being disconnected three times after 2+ hour holds. They don't guarantee specific wait times since that depends on IRS call volume, but they handle the waiting so you can go about your day instead of being stuck listening to hold music.
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Omar Mahmoud
I have to apologize to everyone here - especially to Profile 14 who recommended Claimyr. I was totally wrong about this service. After being so skeptical, I decided to try it as a last resort when I couldn't get an answer about my filing status question. I needed clarity on how our student loan forgiveness would be treated if we filed separately vs jointly. I got connected to an IRS agent in about 90 minutes (which is LIGHT SPEED compared to my previous attempts). The agent was super helpful and explained exactly how our filing choices would affect the loan forgiveness taxation. Saved me at least 8-10 hours of hold time and frustration. Sometimes I hate being wrong, but in this case, I'm actually really glad I was!
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Chloe Harris
Just a data point for the original poster - my wife and I have similar income disparity (I make about 110k, she makes around 45k) and we have a 5-year-old. We've run the numbers both ways for the past three years, and filing jointly has ALWAYS saved us between $1,800-$2,500 compared to filing separately. The main reason is that filing separately makes you ineligible for so many credits and deductions. Plus the tax brackets for "married filing separately" aren't just half of the "married filing jointly" brackets - they're actually worse in many income ranges. The only year we seriously considered filing separately was when my wife had massive medical expenses that wouldn't have met the threshold under our combined income.
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Diego Vargas
•How do the child tax credits work if you file separately? Do you each get to claim one kid or does only one spouse get to claim them?
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Chloe Harris
•With married filing separately, generally only one spouse can claim a qualifying child for the Child Tax Credit. You can't split the children between spouses like you might think. Additionally, if you file separately, the income threshold for the Child Tax Credit phase-out is lower than when filing jointly, so you might get reduced credit or none at all depending on your income. This is actually one of the biggest disadvantages of filing separately when you have kids - you potentially lose thousands in tax benefits compared to filing jointly. In our case, that was about $4,000 in various child-related tax benefits we would have partially or completely lost by filing separately.
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NeonNinja
Am I the only one who hates that the answer to every tax question is always "it depends" or "run the numbers both ways"?? Like, there should be a simple rule of thumb for when filing separately makes sense vs filing jointly. Tax software should automatically tell you which is better for your situation without making you do everything twice.
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Anastasia Popov
•The rule of thumb actually IS pretty simple: married filing jointly is better for about 95% of couples. The only major exceptions are: 1) One spouse has huge medical expenses 2) One spouse is on income-based student loan repayment 3) One spouse has previous tax issues (liens, back taxes, etc) the other wants to avoid 4) Couples in community property states with specific situations
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NeonNinja
•Thanks for breaking it down like that! Makes more sense now why everyone keeps saying to use the joint filing. I guess I was hoping there would be some income threshold where it flips, like "if one spouse makes 3x more than the other, then separate is better" or something simple. Good to know that joint filing is almost always the default best choice. Will save me some time next year!
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