What happens when PayPal overdrafts a checking account (with an ample backup funding source available)?
You should check directly with the seller. I suspect you will find they have not recieved any money. Paypal tend to hang on to money as long as possible in all transactions, and will do anything to avoid giving out cash before it has come in. PayPal will be contacting you shortly, I'm sure.  You'll see the reversal on their site in a few days as well as a fee from their end I bet. "I made this mistake and tried calling Paypal...the first time I have ever been unhappy with their service.  The girl gave me some number but didn't make it clear whether it was an order reference number or a reference phone number for the company I ordered from.  I called within 10 minutes of placing my order and they were unable to cancel or change the payment method.  I did find however, that even though you can't pay paypal with your credit card, some banks will let you.  I went into my account and ""paid"" my account the amount needed using my credit card from the same bank that I had intended to use in the first place...hopefully it went through quickly enough to not get a service fee from Paypal"
I never understood why anyone would overdraft their checking account, until a conversation with a bank teller recently who told me that most young folks these days don't bother to balance their checkbooks anymore or to even bother with a checkbook at all -- they just check their available balance to see how much is in their checking account (totally ignoring any checks or other charges that may have been made against their account but have not yet been debited).        It's hard to believe that young people can be that stupid, but apparently some are. There are several red flags here. can they get my bank account info in any way from me transferring money to them? Probably yes. Almost all bank transactions are auditable, and intentionally cause a money track. This track can be followed from both sides. If they can use your bank account as if they were you, that is a bit deeper than what you are asking, but yes they (and the polish cops) can find you through that transfer. I did look up the company and didn't find any scam or complaints concerning them. Not finding scams or complains is good, but what did you find? Did you find good reviews, the company website, its register, etc, etc? How far back does the website goes (try the wayback machine) Making a cardboard front company is very easy, and if they are into identity theft the company is under some guy in guam that never heard of poland or paypal. As @Andrew said above, it is probably a scam. I'd add that this scam leverages on the how easier is to get a PayPal refund compared to a regular bank transfer. It is almost impossible to get the money back on an international transaction. Usually reverting a bank transfer requires the agreement in writing of the receiver and of both banks. As for paypal, just a dispute from the other user: You are responsible for all Reversals, Chargebacks, fees, fines, penalties and other liability incurred by PayPal, a PayPal User, or a third party caused by your use of the Services and/or arising from your breach of this Agreement. You agree to reimburse PayPal, a User, or a third party for any and all such liability. (source) Also, you might be violating the TOS: Allow your use of the Service to present to PayPal a risk of non-compliance with PayPal’s anti-money laundering, counter terrorist financing and similar regulatory obligations (including, without limitation, where we cannot verify your identity or you fail to complete the steps to lift your sending, receiving or withdrawal limit in accordance with sections 3.3, 4.1 and 6.3 or where you expose PayPal to the risk of any regulatory fines by European, US or other authorities for processing your transactions); (emphasis mine, source) So even if the PayPal transfer is not disputed, how can you be sure you are not laundering money? Are you being paid well enough to assume that risk? "As the other answers stated: Yes PayPal will transfer money from your bankaccount automatically if your PayPal balance isn't sufficient. Let's add some proof to the story: (Note, I am in the EU, specifically the Netherlands, situation might be different in other parts of the world) If I login to PayPal and go to my wallet, I have a section that looks like this:  If I click on it, I am presented with a screen with details about the connection.  Note the ""Direct debit instruction"". If I click on the ""view"" link I am presented with the following text (emphasis mine): [snip some arbitrary personal details] This authorisation allows (A) PayPal to send instructions to your bank account and (B) your bank to debit your account in accordance with the instructions from PayPal. As part of your rights, you are entitled to a refund from your bank under the Terms and Conditions of your agreement with your bank. A refund must be claimed within 8 weeks starting from the date on which your account was debited. Your rights are explained in a statement that you can obtain from your bank. Below this text is a button to delete the authorization." "This is based on my experience with Chase and may not be applicable to other banks. As you mentioned Chase as one of the banks you do business with hopefully this will be helpful to you. The money does come out of your account immediately. If the check isn't cashed in a certain amount of time, the check expires and you get the money credited back to your account. Once you have made a bill payment online you can check on the status of your check by looking at your payment activity, finding the payment in question, and following the ""proof of payment"" link.   There is will provide you with information on your payment which you can submit to your payee to prove when you submitted the payment, and which they can use to verify with the bank that you really did send the payment as you claimed.  Once the check is cashed, this page will also contain images of the front and back of the cashed check, so you can prove that the recipient really did cash it.  You can see from this info that the check is being funded from a different account number than your own, which is good for security purposes since (per Knuth, 2008) giving someone else your bank routing number and account number as found on your personal checks basically provides them with all they need to (fraudulently, of course) clean out your account." Can a third party deposit to my account? (Say I'm selling something and I ask him/her to just deposit the payment to my account? No, but PayPal. "Insufficient funds will cause a check to bounce. If there is evidence that you ""kited"" the check deliberately, that's a potential fraud charge. If the vendor accepts that you were just stupid/careless, you'll probably just have to pay a penalty processing fee in addition to making good the payment.  It is your responsibility to track your account balance and not write bad checks. If the timing could be bad, don't write the check yet. If you insist on paying with money you may not have, talk to your bank about setting up overdrafts to draw from another account, or automatic overdraft loans... or use a credit card rather than paying by check." Of course its possible. Under what terms and with what fees depends on your bank/country regulations, but generally speaking - loaning is the major source of income for banks, especially short-term account overdrafts (which is essentially a loan, usually at a high rate). In the US you can (now, since the new regulations kicked in) instruct the bank not to pay checks/decline debit card purchases if you don't have sufficient funds on the account. Otherwise you can instruct them to pay (at their discretion) to avoid bouncing checks, and accept NSF fees (usually pretty high). Some banks provide overdraft lines of credit (then you won't have NSF fees, and will just pay interest when tapping into that line), others provide option to automatically withdraw the missing amount from a linked account (checking or credit card). I think part of the reason people overdraft is because the online banking app/website doesn't show a true indication of your account balance. I've had mine (at Bank of America) adjust to $30 less than it told me I had when I checked due to processing payments being altered. The initial story sounds normal. Happens every day. Checksums cannot prevent this, since it is a typo by the sender. The sender typed in a wrong account number. That account number happened to exist (so the sender wouldn't get any immediate error message), your account. But, that innocent story can also be used as part of a money laundering plan. Namely, to give the money a legitimate source. Also can be used in a scheme to frame you for something. The question of how the person got your phone number raises suspicion. The bluffs to avoid the normal paperwork, and then disappearing, make it incriminating. No doubt. Take this to the police. The question arises: even if the plan (whatever it was) failed, why didn't he do the paperwork and get the money back? The answer is that that would leave a trail to possibly be picked up in a future investigation. "Your broker will charge you commissions and debit interest on your ""overdraft"" of $30,000. However it is very likely that your contract with the broker also contains a rehypothecation clause which allows your broker to use your assets. Typically, with a debt of $30,000, they would probably be entitled to use $45-60,000 of your stocks. In short, that means that they would be allowed to ""borrow"" the stocks you just bought from your account and either lend them to other clients or pledge them as collateral with a bank and receive interest. In both cases they will make money with your stocks. See for example clause #14 of this typical broker's client agreement. Applied to your example: In other words they will make $60 + $450 + $1,800 = $2,310 the first year. If the stock is expensive to borrow and they manage to lend it, they will make a lot more. There are by the way a few important consequences:" "The whole concept of ""spending a fraudulent check"" is misleading. Both in practice and legally there are two separate transactions - you (not) receiving funds by depositing a fraudulent check, and you sending a cash transfer further on. Regarding the fraudulent check, generally your bank is 'responsible' in the sense that it's their responsibility to recover the money from you - it will not receive any money from the bank that supposedly issued the fake check, and if they give it to you, you spend all that money and are unable to pay it back, that's their problem and not of the other institutions. Regarding the cash transfer, from the bank point of view it's solely your responsibility - it was really you who made that payment, you explicitly authorised/instructed the banks to deliver money to the recipient, and none of those banks have the duty to return it. You have been defrauded by the recipient of this payment, and may attempt to recover the money from the fraudster - but that's not particularly likely to happen even in the case of a successful arrest and conviction.  Very fast reaction with involvement of police may block the ""vendor's"" account before they are able to withdraw the money. If that is the case, you might be able to recover your money or part of it." "When I deposit my paycheck in CapOne I have an email before I am out of the app that they received my check. I have access to some portion of the cash now and the rest the next business day, however they put things in order to NOT overdraft me. For instance, if I am overdrawn $150 but the charge is ""pending"", putting the check in they will deposit the check before posting the charge that would overdraft me.  Plus I can use Apple Pay with it.  My local CUs have app deposit, but it takes DAYS for a deposit to just show up. Plus, no Apple Pay." "My sister, who is in her mid twenties and not the most financially responsible kept telling me that the bank was doing ""weird shit"".   I looked at her statements and noticed something else wells fargo does. She has a checking account that has a ten or fifteen dollar monthly fee.  If her account ever got near that number or in the negative that is when that fee would be charged. So basically instead of charging that fee at the same time every month they would wait till that charge would cause an overdraft which would spark a $35 dollar fee.    Yes I also proved that they are still reordering. I told her to save all her receipts for one month. Her account was at $50. She made a five dollar food purchase, and several other small purchases and then had to pay a small bill that took her over. Via the receipts it was easy to see that all the other small purchases were done two to three days ahead of the one that actually over drafted her. Which cost her almost $200 in overdraft fees.  She is actually not that bad with money, she works 40 hours a week but she just does not make enough to live on and this kind of practice puts her in a hole over and over again." "BoA used to do this too (probably still do). I opened an account at BoA and got low one month, and then a friend of mine cashed a $50 check that I'd given him months prior (that he said he would never cash because ""your money is no good here""). That freaking $50 check cost me hundreds of dollars. They charged me the overdraft fee, a bounced check fee, and then ran the fucking thing through again to see if it would cash when they knew it wouldn't, so I ended up with all the fees doubled!   I closed my account after that, and 2 months later, I got a notice that my account had a negative balance of more than $100 because they had charged me the monthly fee for the checking account after I closed it, and since the account was empty... buttfuckbybankapalooza." "Lol, wtf kind of question is this?    First off, there is no single ""derivatives market"".  There's listed derivatives (ETD's) and OTC.  Then you can break each of those broad markets down into forwards, futures, options (includes all exotics such as binaries, single barriers, double barriers, one touches, double no touches, knock ins, knock outs, reverse knock ins, reverse knock outs, window barriers, etc), and swaps (including swaptions).  All of these are product specific (FX, FI, Credit, Equities, Commodities, etc).... so its more appropriate to look at derivatives with respect to the market they are in rather than all derivatives across all markets.  Now to your question... your question makes absolutely no sense.  Are you wondering what the daily volume is?  Notional outstanding?  Total exposure?"