Nearly $3k difference between FreeTaxUSA and TurboTax calculations - all numbers seem to match
I've been using TurboTax for years but decided to try FreeTaxUSA this time after seeing so many recommendations online. I'm completely confused now because I'm getting almost a $3,000 difference between the two programs! I ran the exact same numbers through both systems and double-checked that all my entries match. Income, deductions, everything seems identical as far as I can tell. When I compare the final calculations side by side, TurboTax is showing I'll get about $2,800 more back than FreeTaxUSA is calculating. Has anyone else experienced something like this? I'm trying to figure out if I'm missing something obvious or if one of the programs is calculating something differently. I don't want to miss out on a bigger refund, but I also don't want to submit something incorrect!
18 comments


Fatima Al-Hashimi
This is actually fairly common when switching between tax software platforms. The discrepancy usually comes down to a few specific areas that might not be immediately obvious when comparing the summary screens: First, check your filing status - sometimes one software defaults to a different status than another. Next, look at how each program is handling any credits you might qualify for - especially education credits, child tax credits, or earned income credits, as these calculations can differ dramatically between platforms. Also, carefully review how each program handles state taxes and deductions, as this is another common source of discrepancies. Sometimes one program will automatically apply certain state-specific credits or deductions that the other might require manual entry. Finally, check for any carryover items from previous years that might have been automatically imported in TurboTax but need manual entry in FreeTaxUSA. This includes things like capital loss carryovers, charitable contribution carryovers, or prior year state tax refunds.
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Giovanni Conti
•Thanks for the detailed response! I did double-check my filing status and it's the same on both (married filing jointly). The education credits also match - I have a dependent in college. Where would I find capital loss carryovers? I did have some stock losses a couple years ago that TurboTax might be factoring in automatically. Do you think missing carryover items could account for such a large difference?
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Fatima Al-Hashimi
•Capital loss carryovers would typically appear in the income section where you report capital gains and losses. In TurboTax, it may automatically pull this information from your previous year's return if you used TurboTax last year. In FreeTaxUSA, you would need to manually enter any loss carryovers. Yes, capital loss carryovers could absolutely account for a significant difference, especially if you had substantial losses. The tax benefit can be up to $3,000 per year against ordinary income, which depending on your tax bracket, could mean several hundred to over a thousand dollars in tax savings.
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NeonNova
After struggling with a similar issue last year, I found an amazing service that helped me figure out the discrepancy between tax programs. I used https://taxr.ai to upload both of my preliminary returns, and it analyzed the differences line by line. Saved me hours of comparing forms! The system highlighted exactly where the calculation differences were occurring - turned out I had missed entering some dividend reinvestments in one program that the other had imported automatically. In my case, the discrepancy was because TurboTax was correctly accounting for some tax loss harvesting I'd done, while the other program wasn't. The AI tool spotted it immediately and explained how to fix it.
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Dylan Campbell
•How does this work exactly? Do you need to have both returns finished before using it? I'm halfway through both TurboTax and FreeTaxUSA and already seeing differences.
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Sofia Hernandez
•I'm skeptical about using a third-party service for tax documents. How secure is it? Do they store your tax information after analysis?
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NeonNova
•You can actually use it at any stage of the process. You just need to get to a point where both programs give you some preliminary calculations to compare. The system can analyze partial returns and still identify where the discrepancies are coming from. Regarding security, I had the same concern initially. They use bank-level encryption and don't permanently store your documents after analysis. Their privacy policy states they delete all tax document data after processing, and you can request immediate deletion. I researched them pretty thoroughly before trusting them with my documents.
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Dylan Campbell
Just wanted to update everyone - I took the advice about using https://taxr.ai and it was incredibly helpful! It pinpointed exactly where my returns were different. Turns out TurboTax was automatically applying some home office deductions from my self-employment income that I hadn't manually entered in FreeTaxUSA. The analysis also found that TurboTax was calculating my state taxes differently because it was applying some obscure credit that FreeTaxUSA didn't prompt me for. Once I fixed those issues, both programs were within $50 of each other. Definitely recommend this approach if you're comparing tax software!
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Dmitry Kuznetsov
If you're still having trouble figuring out the discrepancy, you might need to talk directly with the IRS. I had a similar issue last year and spent WEEKS trying to get through on their phone lines with no luck. Eventually found https://claimyr.com which got me connected to an IRS agent in less than an hour. You can see how it works here: https://youtu.be/_kiP6q8DX5c The agent I spoke with was able to review my previous returns and explain exactly what I was missing in my new calculations. Turns out my issue was related to some retirement account contributions that were being handled differently between platforms. Honestly wish I'd called them first instead of spinning my wheels for days.
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Ava Thompson
•Wait, how does this actually get you through to the IRS faster? Their hold times are legendary. Is this legit or just some kind of premium line that costs extra?
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Sofia Hernandez
•This sounds like paying to jump the line when everyone else has to wait. Does the IRS actually endorse this service? Seems sketchy that a third party can somehow get priority access.
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Dmitry Kuznetsov
•It's not a premium line or anything sketchy. They basically use technology to wait on hold for you. When they reach an agent, they call you and connect you directly to the IRS. You're getting the exact same IRS agents everyone else gets, just without spending hours listening to hold music. The IRS doesn't officially endorse it, but they don't need to - the service is just managing the hold process for you. It's completely legitimate. I was connected to the regular IRS support line, same as if I'd called myself. The difference is I didn't waste half my day waiting.
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Sofia Hernandez
I need to eat my words about Claimyr. After posting my skeptical comment earlier, I decided to try it myself since I had an unresolved tax issue from last year. Got connected to an IRS agent in about 40 minutes when I had previously spent 3+ hours on hold and eventually gave up. The agent was able to explain that in cases like yours with software discrepancies, it's often because of how different tax programs interpret certain deductions or credits. She said they frequently see issues with self-employment expenses, education credits, and retirement contributions being calculated differently between platforms. She recommended going through the detailed forms (not just the summary) line by line if you don't use a service like taxr.ai.
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Miguel Ramos
You should try a third tax software as a tiebreaker! I had a similar issue between H&R Block and TaxSlayer last year. Added my info to CashApp Taxes (formerly Credit Karma Tax) and it matched one of them, which gave me confidence in which calculation was correct. Also, don't forget to check if both programs are handling your state taxes the same way. Sometimes the federal returns match but state calculations cause big differences in the final refund amount.
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Giovanni Conti
•That's a great idea! I didn't think about using a third software as a tiebreaker. Have you found any free options that would work for this? I'm hesitant to pay for yet another tax program just to verify.
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Miguel Ramos
•CashApp Taxes is completely free for federal and state, so that's a good option for a tiebreaker. TaxAct also has a free version that might work depending on your tax situation. Just enter your information and go far enough to see the calculation results - you don't need to file through them. Even if you just get to the federal calculation stage, that should tell you which of your other returns is calculating federal taxes correctly.
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Zainab Ibrahim
Just a warning from my experience last year - I had a $2400 difference between TaxAct and TurboTax. Turned out TurboTax was incorrectly calculating a premium tax credit for my ACA healthcare plan. I filed with the (lower) TaxAct refund amount, which was correct. If healthcare subsidies are involved in your taxes, check those calculations specifically! The difference can be huge and TurboTax doesn't always get it right.
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StarSailor
•Same thing happened to me but with H&R Block calculating it wrong! The ACA credit calculations are super complicated. Double check Form 8962 on both returns if you have marketplace health insurance.
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