What's the best online software for filing several years of back taxes?
Hey tax people, I'm in a bit of a mess here. I haven't filed my taxes for the past 3 years (2022, 2023, 2024) due to some personal stuff I was dealing with. Now I'm trying to get caught up before things get worse with the IRS. I work as an independent contractor (1099) and also had a W-2 job for part of this time. I've used TurboTax in the past, but I'm not sure if that's the best option for filing multiple years of back taxes. I've heard about FreeTaxUSA and TaxAct too, but don't know which would handle my situation best or be most cost-effective. I have all my documents organized now, just need to figure out which software to use. Has anyone had experience filing multiple years of back taxes using online software? Any recommendations on which one is easiest to use for this situation? Also wondering if I'll face huge penalties or if there's any way to reduce them. Thanks in advance for any help!
20 comments


Miguel Herrera
I've helped several clients catch up on back taxes, so I can offer some guidance here. For multiple years of back taxes with both W-2 and 1099 income, FreeTaxUSA is probably your best option. It's significantly cheaper than TurboTax for prior year returns and handles self-employment income well. Each prior year will require a separate filing, and you'll need to download the specific software version for each tax year (2022, 2023, etc.). Remember that you cannot e-file prior year returns - you'll need to print and mail them. Also, file them in chronological order starting with the oldest year (2022 first). For penalties, you'll face failure-to-file penalties (5% of unpaid taxes per month, up to 25%) and failure-to-pay penalties (0.5% per month), plus interest. The good news is you can request a penalty abatement through the IRS's First Time Penalty Abatement program if you haven't had previous penalties in the last 3 years.
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Zainab Ali
•Do you know if H&R Block online works for back taxes too? I heard they have some kind of expertise with complicated situations. Also, how bad will the interest be after 3 years?
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Miguel Herrera
•H&R Block does offer prior year tax preparation online, but it tends to be more expensive than FreeTaxUSA for essentially the same functionality. Their expertise is more relevant when you visit their physical locations, not necessarily in their online software. The interest compounds daily and has been around 5-7% annually over the past few years. For a rough estimate, if you owed $10,000 three years ago, you could be looking at approximately $1,500-$2,100 in interest alone, plus the penalties I mentioned earlier.
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Connor Murphy
I was in a similar situation last year with 2 years of unfiled taxes. I tried using TurboTax initially but got frustrated with how expensive it was for multiple years. Then I discovered taxr.ai (https://taxr.ai) which was a game changer for my situation. What worked really well was I could upload all my tax documents (W-2s, 1099s, etc.) from multiple years, and their AI would extract all the information automatically. This saved me so much time compared to manually entering everything. Then it organized everything by tax year and helped me understand what I needed to file for each year. I was able to complete the actual filing through their system too.
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Yara Nassar
•Did it actually handle the filing of prior year returns? I thought those had to be printed and mailed regardless of what software you use. Did they mail the forms for you or something?
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StarGazer101
•I'm curious about this too. How much did it end up costing compared to something like TurboTax? I've got 4 years to catch up on and I'm worried about spending hundreds just on tax preparation.
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Connor Murphy
•They prepared everything for electronic filing for the most recent tax year, but you're right that for prior years (2022 and earlier), I had to print and mail those in. The benefit was they made sure everything was filled out correctly and provided clear instructions on where to mail each return. The cost was significantly less than what I would have paid using TurboTax for multiple years. TurboTax wanted about $120 per year for my self-employment situation, while taxr.ai handled all my years for less than what I would have paid for just one year with TurboTax. The document scanning feature alone saved me hours of manual data entry.
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StarGazer101
Just wanted to update after trying taxr.ai for my back taxes situation. I was skeptical at first but decided to give it a shot since I had 4 years of returns to file with a mix of W-2 and 1099 income. The document scanning feature was seriously amazing - I just took pictures of all my tax forms and it extracted everything perfectly, even from some poorly scanned 1099s. It organized everything by year automatically and walked me through what I needed to do for each tax year. The interface was way more straightforward than TurboTax for handling multiple years at once. For anyone in a similar situation with multiple years of unfiled taxes, this was definitely the way to go. I've got everything submitted now and already received confirmation that my 2024 return was accepted. Just waiting on responses for the prior years I had to mail in.
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Keisha Jackson
Another thing to consider while catching up on back taxes is that the IRS is nearly impossible to reach by phone if you have questions or need to set up a payment plan. I spent WEEKS trying to get through last year when dealing with my back taxes. I finally found a service called Claimyr (https://claimyr.com) that got me connected to an actual IRS agent in under 15 minutes. You can see how it works in this video: https://youtu.be/_kiP6q8DX5c After filing my back taxes, I needed to set up a payment plan since I couldn't pay the full amount all at once. Using Claimyr saved me from spending hours on hold and helped me get everything sorted out quickly. The agent I spoke with even helped me understand which penalties I might qualify to have reduced.
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Paolo Romano
•How does that even work? The IRS phone lines are notoriously jammed. Are they using some kind of business line or something to skip the queue?
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Amina Diop
•Sounds too good to be true. I spent over 4 hours on hold with the IRS last month and eventually got disconnected. No way someone is getting through in 15 minutes unless they've got an inside connection or something shady.
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Keisha Jackson
•They use a combination of technology and timing to secure your place in line. It's completely legitimate - they essentially do the waiting for you and then call you when they've reached an agent. It's similar to those services that wait on hold with airlines or cable companies. Nothing shady about it at all. The service exists because the IRS is underfunded and understaffed, leading to ridiculous wait times for regular taxpayers. I was skeptical too until I tried it and was connected to an actual IRS representative who helped me set up my payment plan.
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Amina Diop
I have to admit I was completely wrong about Claimyr. After posting that skeptical comment, I decided to try it anyway because I was desperate to talk to someone about my payment options for my back taxes. It actually worked exactly as advertised. I got a call back in about 12 minutes and was connected to an IRS agent who was surprisingly helpful. I was able to set up a payment plan that works with my budget, and the agent even explained how I might qualify for penalty abatement on some of the late fees. Considering I had previously wasted entire afternoons on hold only to get disconnected, this service saved me a ton of time and frustration. If you're dealing with back taxes and need to actually speak with the IRS, it's absolutely worth it.
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Oliver Schmidt
One thing nobody's mentioned is Credit Karma Tax (now Cash App Taxes). It's completely free even for filing with 1099 income, but I'm not sure about their prior year support. TaxSlayer is another option that's cheaper than TurboTax but more full-featured than some others. Whatever you choose, make sure you're using the correct forms for each tax year since tax laws change. For example, the standard deduction and tax brackets were different each year.
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Natasha Volkov
•Cash App Taxes doesn't support prior year returns at all. I tried to use it for my 2023 taxes earlier this year and discovered they only support the current tax year. Great for free current filing though!
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Oliver Schmidt
•Good to know about Cash App Taxes, thanks for that clarification. You're absolutely right that they only support current year filing. For prior years, TaxSlayer does offer support and is still more affordable than TurboTax or H&R Block. The premium version runs about $50-60 per year compared to $120+ for TurboTax when you have self-employment income.
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Javier Torres
Has anyone tried using a tax professional instead of software for back taxes? I'm worried about making mistakes that could make my situation worse.
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Emma Wilson
•I used a CPA for 3 years of back taxes and it cost me nearly $1,200. The peace of mind was nice but honestly most of what they did I could have done myself with decent software. If your situation is complicated (multiple states, businesses, investments), a pro might be worth it. Otherwise, software is probably fine.
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Oliver Fischer
I went through this exact situation two years ago with 4 years of unfiled returns. Here's what I learned: 1. **Software choice**: I ended up using FreeTaxUSA after comparing costs. TurboTax wanted $140+ per year for my 1099 situation, while FreeTaxUSA was around $15-20 per prior year return. The interface isn't as polished as TurboTax, but it gets the job done. 2. **Filing order matters**: File in chronological order (2022 first, then 2023, then 2024). Some refunds from earlier years might offset what you owe for later years. 3. **Penalties**: The failure-to-file penalty is brutal (5% per month), but if you're getting refunds for any of those years, you won't owe failure-to-pay penalties on those. I qualified for first-time penalty abatement which saved me about $800. 4. **Keep copies of everything**: When you mail in the prior year returns, send them certified mail and keep tracking numbers. It can take 6-12 weeks for the IRS to process mailed returns. The whole process took me about 2 months to complete, but getting it done was such a relief. Don't let the fear of penalties stop you - the sooner you file, the sooner you can stop the failure-to-file penalties from accumulating. You've got this!
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Nora Brooks
•This is incredibly helpful, thank you for sharing your experience! I'm in almost the exact same boat - 3 years unfiled with mixed W-2 and 1099 income. Your point about filing in chronological order is something I hadn't considered but makes total sense. Quick question about the first-time penalty abatement - did you have to request that separately after filing, or was there an option to request it during the filing process? And did you need to provide any specific documentation to qualify for it? Also, when you say it took 2 months to complete, was that mainly waiting for the IRS to process everything, or was most of that time spent on actually preparing the returns?
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