Is U.S estate tax applicable to joint brokerage account of non-US citizens if one party dies?
If the brokerage account holds US assets, such as the stock of US companies, then it may be taxable under some conditions. The rules are complex and depend on the nationality of the individuals, because the results may be affected by tax treaties between the United States and whatever country the person is from.
Generally speaking, granting rights to one bank account (e.g. making a joint account) does not extend rights to other accounts or otherwise let one joint owner create new obligations on the other owner (e.g. opening a line of credit that the other owner must pay for), except to the extent of the joint account.  I assume there are no UK rules that would change this feature. The other party can of course withdraw all the money without need for your approval.  This also means that the joint account could be exposed to all the creditors of either party.  If your account joint tenant has huge debts, the creditors could theoretically look to the joint account for satisfaction.  At least, that would be an issue under US law. Frankly, it may be simpler to get a separate account for the other person (if possible) and make transfers with online banking.  It could also make sense to get a rechargeable banking card, if those are in the UK, which works like a debit card and can be reloaded through various means (sometimes a call, sometimes online deposits, sometimes in physical stores).  There may be fees to getting such a card or a second account, of course.  The benefit is that the cardholder has no access to your account and you control recharging.  Such cards are widely available in the US to people who otherwise would not qualify for traditional bank accounts. Note also the FATCA complication with adding a US person to your account.  My understanding is that a number of non-US banks will simply close the accounts of Americans, rather than deal with FFI hassles under FATCA. AFAIU, you don't need pay any taxes for you amount in NRE account since this amount is already taxed. I also think, you do not need to pay taxes on the interest earned on NRE account. However, you need to disclose the amount in your Indian Bank(s), if at any point of time, exceed $10K (When converted from INR to $). This is FBAR. Sending money to non-NRE account would come under Indian Tax scanner. For instance, if your parents use that money to pay EMIs or any huge purchase, then that might cause an issue. Most of the times, these type of purchases go unnoticed. However, the party who is taking money, may ask for source, especially if its a financial institution or Govt bodies. Also, for non-NRE accounts, you need to pay taxes and on interest earned. Hope this helps! Opening account in foreign bank is possible, but you must have strong proofs you use it for legitimate purposes. More chances to get an account if you visit Europe and able to stay, for example, for a week, to visit bank in person and wait for all the checks and approvals. Also keep in mind that there will be deposit/withdraw limits and fees applicable, that are significantly stricter and larger for non-EU citizen. In my opinion, if your amounts are not large, it might not worth it. If amounts are large, you might consider business account rather than personal, as is the example of strong proof I meant. "This forum is not intended to be a discussion group, but I would like to add a different perspective, especially for @MrChrister, on  @littleadv's rhetorical question  ""... estates are after-tax money, i.e.: income tax has been paid on them,    yet the government taxes them again. Why?"" For the cash in an estate, yes, that is after-tax money, but consider other assets such as stocks and real estate. Suppose a rich man bought stock in a small computer start-up company at $10 a share about 35 years ago, and that stock is now worth $500 a share. The man dies and his will bequeaths the shares to his son. According to US tax law, the son's basis in the shares is $500 per share, that is, if the son sells the shares, his capital gains are computed as if he had purchased the shares for $500 each. The son pays no taxes on the inheritance he receives. The deceased father's last income tax return (filed by the executor of the father's will) does not list the $490/share gain as a capital gain since the father did not sell the stock (the gain is what is called an unrealized gain), and so there is no income tax due from the father on the $490/share. Now, if there is no estate tax whatsoever, the father's estate  tax return pays no tax on that gain of $490 per share either. Would this be considered an equitable system? Should the government not tax the gain at all? It is worth noting that it would be possible for a government to eliminate estate taxes entirely, but instead have tax laws  that say that unrealized gains on the deceased's property would be taxed (as capital gains) on the deceased's final tax return." Found a great article (with bibliography) that covers taxation on investment activity by non resident aliens - even covers the special 15% tax on dividends for Canadian residents. It's (dividend tax rate) generally 30% for other NRAs  (your 2nd question). And it confirmed my suspicion that there are no capital gains taxes for NRAs. (1st Q) Source: http://invest-faq.com/articles/tax-non-us-nat.html If you keep the account in your name only and your girlfriend is depositing money into it, then she is in effect making gifts of money to you. If the total amount of such gifts exceeds $14K in 2014, she will need to file a gift tax return (IRS Form 709, due April 15 of the following year, but not included with her Federal tax return; it has to be sent to a specific IRS office as detailed in the Instructions for Form 709). She would need to pay gift tax (as computed on Form 709) unless she opts to have the excess over $14K count towards her Federal lifetime combined gift and estate tax exclusion  of $5M+ and so no gift tax is due.  Most estates in the US are far smaller than $5 million and pay no Federal estate tax at all and for most people, the reduction of the lifetime combined... is of no consequence.  Another point (for your girlfriend to think about): if you two should break up and go your separate ways at a later time, you are under no obligation to return  her money to her, and if you do choose to do so, you will need to file a gift tax return at that time. If you will be returning her contributions together with  all the earnings attributable to her contributions, then keep  in mind that you will have paid income taxes on those earnings all along since the account is in your name only.  Finally, keep in mind that the I in IRA stands for Individual and your girlfriend is not entitled to put her contributions into your IRA account. Summary: don't do this (or open a joint account as tenants in common) no matter how much you love each other. She should open accounts in her name only and make contributions to those accounts. I can't answer from the Indian side but on the UK side, if you and your friend are not related then there is no tax implication - you are effectively giving each other gifts - other than a possible inheritance tax liability if one of you dies within 7 years of the transfer and has an estate above the IHT allowance. First: In most cases when you inherit stocks the cost basis is stepped up to the date of the death of the person you inherited them from. So the capital gain/loss is likely reset to zero. The rules vary a bit for joint accounts, but retirement accounts (401k/ROTH) are considered individual accounts by the IRS. The rules on this have changed a lot in recent history, so it may depend on when he died. Update: As JoeTaxpayer pointed out and I confirmed via this site , the gains are NOT stepped up for retirement accounts, so this is a moot point anyway.  Further evidence that retirement accounts can be complicated and seeking professional guidance is a good idea. ...[T]here is no step-up in cost basis   upon the death of the IRA owner. Most   other assets owned by an individual   receive a step-up in cost basis upon   the death of the person, eliminating   all capital gains on those assets up   to that point in time. Second:  Even if you can deduct an investment (capital) loss, you can only deduct it to offset capital gains on another investments. Also you can only do this up to $3k per year, though you can roll over excess capital losses into future years. Bottom line: I really doubt you are going to be able to claim a deduction. However, due to the complexity of the situation and the amount of money involved. I strongly suggest you talk to a qualified tax adviser and not rely solely on information you gather through this site.