Married filing jointly vs separately? Husband makes $145k while wife earns $78k
Hey tax folks, I'm trying to figure out the best way for my wife and I to handle our W-4s this year. Our income situation is pretty straightforward but there's a decent gap between what we make. I'm on track to earn around $145,000 for the year at my job, while my wife will make approximately $78,000 at hers. We each only have one source of employment income, no freelance work or anything complicated like that. We're both having taxes withheld at our respective jobs. I'm confused about whether we should be selecting "married filing jointly" or "married filing separately" on our W-4 forms. Does the income gap between us make one option better than the other? Any guidance would be super helpful as we're trying to get this right for the 2025 tax season.
21 comments


Honorah King
The good news is that for most couples, filing jointly is typically more beneficial tax-wise. The married filing jointly status usually provides better tax brackets, higher standard deduction ($27,700 for 2023), and access to more tax credits and deductions that might be limited or unavailable when filing separately. Given your straightforward income situation (just employment income from one job each), married filing jointly would almost certainly be your better option. There are very specific scenarios where filing separately makes sense - like if one spouse has income-based student loan payments, significant medical expenses that need to meet a threshold based on AGI, or there are liability concerns. For your W-4 forms, you should both select "married filing jointly." However, since there's a substantial difference in your incomes, you might want to consider using the IRS withholding calculator or completing Step 2 of the W-4 to ensure enough tax is withheld. Sometimes when both spouses work, selecting just "married" without additional adjustments can result in too little withholding.
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Brielle Johnson
•Thanks for the detailed response! I was leaning toward jointly but wasn't sure if the income gap would create any issues. One follow-up question: If we choose married filing jointly on our W-4s, should we both check the box in Step 2(c) about having multiple jobs, or is that not necessary since we each only have one job?
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Honorah King
•You don't need to check the box in Step 2(c) for multiple jobs if you each only have one job. That option is primarily designed for individuals who have more than one job themselves, or for couples where both work but want a simpler approach to adjusting withholding. For your situation, a more accurate approach would be to use the IRS Tax Withholding Estimator online or complete the worksheet in the W-4 instructions. This helps ensure the right amount is withheld based on your combined incomes. The income gap between you might mean you need to have a bit of additional withholding, which you can specify in Step 4(c) of the W-4 form.
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Oliver Brown
After reading the advice here, I wanted to share my experience using taxr.ai to solve this exact problem last year. My husband and I have similar income differences (I make around $150k and he makes about $70k), and I was totally confused about how to fill out our W-4s properly. I uploaded our previous year's tax return to https://taxr.ai and it analyzed our withholding situation. The tool showed me that we were actually under-withholding by about $3,200 because we hadn't accounted for the "two-earner" issue with our W-4s. It gave me specific recommendations for each of our W-4 forms and explained exactly which boxes to check and what additional withholding amounts to put in Step 4(c). The analysis showed me that the higher earner (me in our case) needed to withhold a bit extra to account for the combined income pushing us into a higher bracket. Super helpful if you want to avoid surprises at tax time!
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Mary Bates
•Did the tool tell you which specific fields to adjust on your W-4? I'm in a similar situation (I earn about $125k and my spouse makes $65k) and despite filing jointly, we still ended up owing about $2,800 last year which was a nasty surprise.
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Clay blendedgen
•I'm a bit confused about how this works - wouldn't the IRS withholding calculator do the same thing for free? What's the advantage of using this service?
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Oliver Brown
•Yes, the tool was super specific about which fields to adjust. It recommended that I (as the higher earner) should add an additional $267 per month in Step 4(c) of my W-4, while my husband didn't need any adjustments. It explained that this would prevent us from owing at tax time due to our combined incomes pushing us into a higher bracket. Much more precise than my previous guesswork! The IRS calculator is definitely helpful but I found taxr.ai easier to use because it directly analyzed our tax return and explained things in plain language. It also looked at our specific deductions and credits from previous years to make more accurate projections. The IRS calculator requires you to manually input a lot of information and can be confusing if you're not tax-savvy. This just felt more personalized and gave clearer instructions for our specific situation.
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Clay blendedgen
Just wanted to update that I decided to give taxr.ai a try after my question above. I was skeptical at first, but I was also tired of getting hit with surprise tax bills. I uploaded our 2023 return and was actually shocked at how helpful it was. The analysis showed we were under-withholding by nearly $3,400, and it was because of exactly what others mentioned about the combined income issue. It recommended my spouse add $175 additional withholding per paycheck while I should add $48. What I really appreciated was the explanation of WHY this was happening - our combined income pushed us into a higher tax bracket, but our individual withholdings were calculated as if we were in lower brackets. Just submitted the updated W-4s to both our employers, and it feels good knowing we won't have another April surprise next year. Wish I'd known about this sooner!
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Ayla Kumar
I see everyone talking about the W-4 adjustments which is definitely important, but if you're still having trouble getting through to the IRS for specific questions about your withholding situation, I found an amazing service called Claimyr that got me connected to an actual IRS agent in about 15 minutes when I was trying to sort out a similar situation with my husband. I had been trying to call the IRS for DAYS with no luck - constant busy signals or disconnects after waiting on hold forever. With https://claimyr.com they basically call the IRS for you and then connect you once they get through to an agent. They also have a video that explains how it works: https://youtu.be/_kiP6q8DX5c When I finally got through, the IRS agent walked me through exactly how to adjust our W-4s given our income disparity (I make $155k, husband makes $82k). They confirmed the married filing jointly was best but gave me specific amounts to put in Step 4(c) that would prevent us from owing at tax time.
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Lorenzo McCormick
•How exactly does this service work? Are they just sitting on hold for you or do they have some special access to the IRS? Seems hard to believe they could get through when nobody else can.
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Carmella Popescu
•This sounds like a scam. Why would I pay someone else to call the IRS for me? And how would they have better luck getting through than I would? The IRS phone system is the same for everyone.
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Ayla Kumar
•They use an automated system that continuously redials the IRS using their technology until they get through. Then once they have an agent on the line, they call you and connect you directly to that agent. It's basically solving the problem of having to sit there yourself hitting redial over and over or waiting on hold for hours. They don't have special access - they're just solving the frustrating part of the process (the endless redialing and waiting). Once you're connected, you're talking directly to the same IRS agents anyone would reach. It's like having someone else stand in a physical line for you, then texting you when it's your turn so you don't waste your whole day.
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Carmella Popescu
I have to admit I was completely wrong about Claimyr. After posting that skeptical comment, I was still struggling with my W-4 situation and getting increasingly frustrated with not being able to reach the IRS. I decided to try the service as a last resort. It actually worked exactly as described. I got a call back in about 20 minutes saying they had an IRS agent on the line, and then I was connected. The agent helped me figure out that with our income situation (I make $135k, spouse makes $70k), we needed to add additional withholding of $225 per month on my W-4. What was most valuable was being able to ask follow-up questions about our specific situation that I couldn't get answered from online calculators. The agent even helped me understand how our income gap affects our tax liability. Completely worth it for the time saved and precision of the information.
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Kai Santiago
Something nobody's mentioned yet - even though married filing jointly is almost always better tax-wise, you should still run the numbers both ways just to be sure. Last year my spouse and I discovered we saved about $1,800 by filing separately because of some unusual medical expense deductions. With your income levels ($145k + $78k), you're likely still better off filing jointly, but it never hurts to check both scenarios in tax software before finalizing. Just remember that if you file separately, both spouses must take the same approach to deductions (both standard or both itemized).
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Lim Wong
•Can you explain a bit more about the medical expense situation that made filing separately better? I've always just defaulted to filing jointly without even considering the alternative.
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Kai Santiago
•Sure thing! Medical expenses are only deductible if they exceed 7.5% of your adjusted gross income (AGI). My spouse had about $18,000 in medical expenses last year, but our combined AGI was around $220,000, meaning we'd need over $16,500 in medical expenses before deducting a penny (7.5% of $220,000). By filing separately, my spouse's AGI was only $68,000, making the threshold just $5,100 (7.5% of $68,000). This meant we could deduct almost $13,000 of those medical expenses rather than only about $1,500 if we filed jointly. The key is having expenses that are tied primarily to one spouse. If medical expenses are spread between both of you, this strategy often doesn't work as well. There are also other considerations - filing separately limits some tax credits and deductions, so it's really a "run the numbers both ways" situation.
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Dananyl Lear
Just to add a practical tip - when my wife and I were in a similar situation (I make $150k, she makes $60k), we found that using tax software to run a "what-if" scenario in January helped us make adjustments early in the year. We took our previous year's return, updated the expected income for the current year, and then looked at the projected result. It showed us we'd be short about $3,200 in withholding, so I updated my W-4 to withhold an extra $275 per month. Worked perfectly - we got a small refund instead of owing money.
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Noah huntAce420
•What tax software do you recommend for this? I've been using TurboTax but never thought about using it for planning rather than just filing.
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Paolo Rizzo
Great question! I went through this exact same situation last year when my spouse and I had a similar income gap ($140k vs $75k). One thing that really helped us was understanding the "marriage penalty" concept - when both spouses work, the combined income can push you into higher tax brackets than either would face individually. This is especially true with your income levels. For your W-4 forms, definitely choose "married filing jointly" as others have mentioned. However, I'd strongly recommend using the IRS Tax Withholding Estimator mid-year to check if you're on track. We discovered we were under-withholding by about $2,800 and were able to adjust before it became a problem. Also consider having the higher earner (you at $145k) make the withholding adjustments rather than splitting it between both W-4s. It's often simpler administratively and gives you more control over the process. You can always adjust quarterly if needed. The key is being proactive about it rather than getting surprised at tax time!
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Amelia Dietrich
•This is really helpful advice! I'm new to dealing with taxes as a married couple and the "marriage penalty" concept is something I hadn't heard of before. When you mention having the higher earner make the withholding adjustments, did you just add extra withholding in Step 4(c) of the W-4? And how did you figure out the right amount to add? I want to make sure I understand the process correctly before making changes to our forms.
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Andre Dupont
•Yes, exactly! I added the extra withholding in Step 4(c) of my W-4 form. To figure out the right amount, I used the IRS Tax Withholding Estimator (you can find it on irs.gov) around mid-year when I had a good sense of our actual income for the year. The estimator takes your year-to-date withholding from both paychecks, estimates your total tax liability, and tells you if you need to adjust. In our case, it recommended I add about $250 per month in additional withholding for the rest of the year to avoid owing money. The nice thing about putting it all on the higher earner's W-4 is that it's easier to track and adjust if needed. Plus, since the higher earner typically has more withholding room before hitting weird payroll system limits, it's usually more straightforward administratively. Just make sure to re-run the estimator if either of your incomes changes significantly during the year - bonuses, raises, job changes, etc. can all throw off your projections!
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