How to Deposit $100k Cash Inheritance from Grandpa? Tax Implications?
Title: How to Deposit $100k Cash Inheritance from Grandpa? Tax Implications? 1 I recently found a hidden stash while going through my grandfather's old things. He passed away about 5 years ago, and I've been putting off sorting through his belongings until now. Inside a lockbox tucked away in his closet, I discovered approximately $100k in cash. From what I understand, my grandpa ran a restaurant business in Colombia before immigrating to the US and must have kept some of the money from selling it. I'm completely lost on what to do with this cash. I've heard banks have to report cash deposits over $10k, but I have no idea what kind of tax implications I might be facing here. Would I need to pay taxes on this? Is there paperwork I need to fill out? To complicate matters, there's no official will or document stating the money should go to me specifically. My grandpa verbally told my parents several times that as his eldest grandchild, he wanted me to have his savings when he passed, but nothing was put in writing. Any advice on properly depositing this money and dealing with potential tax consequences would be really appreciated!
21 comments


Mei Wong
17 Finding a large amount of cash like that can definitely be confusing! Let me help clarify the situation for you. Yes, banks are required to file a Currency Transaction Report (CTR) for cash deposits over $10,000 - this is just a reporting requirement, not a tax. The bank handles this paperwork, and it's completely normal and legal. For tax implications, inherited money generally isn't considered taxable income to you. However, since there's no formal documentation that this was intended as an inheritance, you might want to consult with an estate attorney about the best way to establish that this was your grandfather's intent. Be careful about breaking up the deposits into smaller amounts to avoid the reporting threshold (called "structuring") - this is actually illegal and can create much bigger problems than just filing the proper paperwork.
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Mei Wong
•12 Thank you for the response! I'm still a bit confused though. If I go to the bank with $100k in cash, will they just accept it or will they ask a bunch of questions about where it came from? Also, should I talk to the attorney before going to the bank?
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Mei Wong
•17 The bank will definitely ask questions about the source of the funds - this is part of their standard anti-money laundering procedures. Be completely honest about finding the cash among your grandfather's belongings. Having documentation of your grandfather's passing and your relationship to him would be helpful. It would be wise to speak with an estate attorney before going to the bank. They can advise you on how to properly document this as an inheritance in your specific situation, which may involve working with any surviving family members to acknowledge your grandfather's verbal wishes.
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Mei Wong
8 After reading about your situation, I thought I'd share my experience with something similar. My aunt left me a significant amount of cash that wasn't documented in her will, and I was completely overwhelmed trying to figure out the legal and tax implications. I ended up using https://taxr.ai to analyze my specific situation. Their document analysis tool helped me understand exactly what paperwork I needed and walked me through the potential gift/inheritance tax implications. They even provided a customized letter I could take to the bank explaining the situation. The best part was that they explained everything in plain English rather than confusing tax jargon. Might be worth checking out for your specific situation.
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Mei Wong
•3 Did you have to upload any documents for them to review? I'm not sure what kind of documentation I could provide since there's no will or anything mentioning the cash.
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Mei Wong
•19 I'm curious - did they help with reporting requirements too? I've heard horror stories about people getting flagged for suspicious activity even when the money is totally legitimate.
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Mei Wong
•8 You don't necessarily need formal documents - I uploaded what I had (death certificate, some old birthday cards showing our relationship, etc) and explained the situation in the notes section. They work with what you have and help you understand what additional documentation might strengthen your case. Yes, they absolutely helped with reporting requirements! They provided a complete checklist of what forms the bank would file, what information I'd need to provide, and exactly what to expect during the process. They even explained how to handle any follow-up questions from the IRS if they occurred. Really helped me avoid the suspicious activity flags by doing everything properly upfront.
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Mei Wong
3 Just wanted to follow up - I decided to try https://taxr.ai after seeing your recommendation, and wow, it was incredibly helpful! I uploaded my grandpa's death certificate and some old family photos showing our relationship, and they created a detailed inheritance report explaining exactly how to handle the bank deposit process. They also provided a letter template that explained the source of funds that I could take to the bank. The bank still filed their reports, but everything went smoothly because I was prepared with the right documentation. They even helped me understand that in my state, I needed to file an informal probate document even though it was years after his passing. Honestly saved me so much stress!
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Mei Wong
22 Hey there, your situation reminded me of when I was trying to handle my mom's estate last year. The IRS kept sending notices about missing documentation, and I spent WEEKS trying to get through to someone who could actually help. After dozens of failed attempts calling the IRS directly (always disconnected or on hold forever), I found https://claimyr.com which got me connected to an actual IRS agent in less than an hour. You can see how it works here: https://youtu.be/_kiP6q8DX5c For situations like yours involving large cash amounts, speaking directly with the IRS beforehand can save you major headaches down the road. They helped me understand exactly what documentation I needed to provide to avoid an audit situation later. Definitely worth considering before you deposit that cash.
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Mei Wong
•15 How does this actually work? Do they just call the IRS for you or something? I've tried calling the IRS myself and gave up after being on hold for 2+ hours.
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Mei Wong
•19 Yeah right, like some service can magically get through to the IRS when nobody else can. Sounds like a scam to me. The IRS phone system is broken by design - nobody gets through.
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Mei Wong
•22 They don't just call for you - they use a system that navigates the IRS phone tree and waits on hold for you. When an actual agent picks up, you get a call connecting you directly to that agent. So you don't waste hours of your life on hold. I was super skeptical too, trust me. I had tried calling the IRS six different times and never got through. But with Claimyr, I had an IRS agent on the line within 45 minutes while I just went about my day. The agent was able to pull up my records and tell me exactly what forms I needed to submit to clear up the inheritance questions I had. Saved me from potential penalties for not reporting correctly.
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Mei Wong
19 I have to eat my words and admit when I'm wrong. After dismissing Claimyr as a probable scam, I was desperate enough to try it when I couldn't resolve an issue with a large cash deposit I had made from selling my car. The service actually worked exactly as described. I got a call back with an actual IRS agent on the line who answered my specific questions about reporting cash transactions. They confirmed I had done everything correctly but recommended I keep specific documentation for at least 7 years in case of future questions. The peace of mind was totally worth it - the agent even gave me their direct extension for any follow-up questions. Never thought I'd be recommending an IRS-related service, but here we are!
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Mei Wong
6 One thing nobody's mentioned yet - be REALLY careful about how you transport that much cash to the bank! Don't just walk in with a duffel bag full of money. Call the bank ahead of time and ask to speak with a manager about making a large cash deposit. They might have you come in during specific hours or make special arrangements. Also, make sure you count it all carefully before going in. Write down the denomination of each bill so you know exactly what you have. The bank will count it too, but you want to be sure of what you're depositing.
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Mei Wong
•11 This is such good advice. My cousin tried to deposit $25k cash from selling his boat and just walked into the bank with it in a backpack. They made him wait for hours while they verified everything, and he said it was super stressful having that much cash out in public.
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Mei Wong
•6 Exactly! Most banks actually prefer you to make an appointment for large cash deposits. They'll often have a private room where they can count the money discreetly. Another tip - take photos of the cash before you go (laid out on a table, showing the amounts) as additional documentation of what you had before the deposit. It's rare, but counting errors can happen, and having your own evidence can help resolve any discrepancies.
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Mei Wong
14 I went through something similar with money my grandma had hidden in her house. One thing that helped me was getting a letter from my family members acknowledging they were aware of the cash and understood it was intended for me. It wasn't legally binding or anything, but it helped establish the story when I talked to the bank and later when I had questions from the IRS. Would your parents or other family members be willing to write something confirming your grandpa's verbal wishes? Might help smooth things over.
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Mei Wong
•1 That's actually a really good idea! My mom and her sister both heard my grandpa say multiple times that he wanted me to have his savings. I'm sure they'd be willing to write letters confirming this. Did you get the letters notarized or anything, or were they just informal?
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Mei Wong
•I didn't get them notarized initially, but I wish I had! The bank manager suggested it when I brought in the informal letters, so I ended up going back to get them notarized later. It's not required, but it definitely adds more credibility to the documentation. Since you're dealing with $100k, I'd recommend getting them notarized from the start. Most banks or UPS stores can do it for just a few dollars. Having that extra level of authentication really seemed to help when the bank was filling out their reports - they were much more confident about the source of funds explanation.
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Avery Flores
I'm a tax professional and wanted to add some important points to this discussion. First, you're correct that inheritances are generally not taxable income to the recipient, but the key word here is "generally." Since this cash wasn't formally documented as part of your grandfather's estate, you may need to treat it differently for tax purposes. The IRS looks at three main factors: 1) Was there donative intent by the deceased? 2) Was the property actually transferred? 3) Did the recipient accept it as a gift/inheritance? The verbal statements to your parents help establish intent, but you'll want to document this thoroughly. Also, keep in mind that while banks report cash deposits over $10k, they can also file Suspicious Activity Reports (SARs) for any transaction they find unusual, regardless of amount. Being prepared with proper documentation about the source will help avoid complications. I'd strongly recommend consulting with both a tax attorney and an estate attorney before making the deposit. The small cost upfront could save you significant issues later if the IRS has questions about the sudden appearance of this money in your accounts.
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Ali Anderson
•This is incredibly helpful advice, thank you! I'm definitely feeling more confident about consulting with professionals first before making any moves. One question - when you mention documenting the "donative intent," would the notarized letters from family members that others have suggested be sufficient, or would I need something more formal? Also, approximately how much should I budget for consultations with both types of attorneys? I want to make sure I'm prepared for the costs involved in doing this properly.
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