How long do you have to live somewhere to be a resident for tax purposes?
It's not so much about time but about intent.  If your intent is to move there permanently, it would be when you arrive in the state for the purposes of living there (i.e. not from a while before that when you went to check a place out or for an interview).  I believe that most (if not all) states expect you to get a Driver's License from that state within 30-days of moving there. Something like a Driver's License or State ID would be proof of your residency.  These things vary greatly from state to state, so you'd have to research particular states.  Or find someone who's done that already. A bit of searching, specifically for Texas, brought me to this forum thread: If you / he wish to establish residency here -- here being Texas -- get a Texas Driver's License and Voter Registration here. Government issued ID with a Texas address is pretty much bulletproof defense against being found to be a resident of elsewhere. Your battle, if there is one, will not be with Texas, but with your present home of record state and/or local government if there are income taxes associated with having been a resident there during the tax year. Which brings up the other question: You would need to make sure that California does not have some provision that would cause you issues.  (This isn't so much a case of income from a company in the state as it about capital gains, but it is still prudent to check.) If you are going to be trying clever stuff with taxes in different place, you probably need a professional. Different countries definitely have different laws on the subject.  For example (several years ago) the UK considered you absent from the UK for tax purposes from the day you left, provided you were gone for a year, whereas Canada didn't charge you tax as long as you were not in the country for six months in the year. A carefully timed move enabled me to not pay tax at all for six months because I wasn't resident anywhere. Also it was irrelevant whether I intended to stay or not.
Having lived in both places, I have to say you can find a higher income in the US for the same job and can live in a small town versus having to live in a big city in Canada to find decent salaries.  For similar sized cities, the cost of housing is significantly lower in the US than Canada.  That is your biggest factor in cost of living.  If you are thinking of NYC or San Francisco, there are no comparable size cities in Canada and you would probably be better off in Canada.   My tax preparer was amazed at how much I paid in Capital Gains taxes when I left Canada.  Maybe it is different now but I doubt it. The biggest free lunch in the US is a generous capital gains exemption when you sell your primary residence without any lifetime cap or cap on the number of times you can do it.  There are rules on how long you have to live in it before selling. For investment real estate, all expenses are deductible in addition to fictional depreciation so with a mortgage you can have positive cash flow and pay no income tax.  You can keep doing tax deferred exchanges into bigger and bigger rentals.  When you are close to retirement, you can exchange into your ultimate beach home, rent it out a few years, then convert to a primary residence. There are just too many variables here... Will you legally be considered a permanent resident from the moment you move? Will you work from home as a contractor or as an employee? Those are not questions you can answer yourself, they really depend on your circumstances and how the tax authorities will look at them. I strongly encourage you to speak to an advisor. Very generally spoken, at your place of residence you pay taxes for your worldwide income, at the place of your work base (which is not clear if this really would be Turkey) you pay taxes on the income generated there. If it's one and the same country, it's simple. If not, then theoretically you pay twice. However, most countries have double taxation treaties to avoid just that. This usually works so that the taxes paid abroad (in Turkey) would be deducted from your tax debt at your place of residence.  But you might want to read the treaty to be sure how this would be in your specific case (all treaties are publicly available), and you should really consider speaking to a professional. Yes you do. You're under the jurisdiction of at least one country where you're resident, or where you're citizen. You may be under jurisdiction of more than one country. Each country has its own laws about what and how should be taxed and countries have treaties between them to resolve jurisdiction issues and double taxation situations, so you should talk to a tax accountant licensed to provide you with an advice. "If you are a resident of New Zealand for tax purposes, you will be taxed in New Zealand on all of your ""worldwide income"". This is income derived from New Zealand as well as income derived from all other countries Source: http://www.ird.govt.nz/international/nzwithos/income/overseas-income-index.html Another link that will be of use is this: https://www.ato.gov.au/individuals/international-tax-for-individuals/work-out-your-tax-residency/ This is Australia's rules on if you qualify as a resident for tax purposes.  I am not an accountant or a lawyer but my reading of this is you actually have to reside in Australia to be considered a resident - whether or not you have a bank account there doesn't appear to play into it. Additionally, Australia and NZ have a ""double taxation agreement"", explained here: http://www.ird.govt.nz/yoursituation-nonres/double-tax/ So this should prevent you from being taxed in both places." "The IRS taxes worldwide income of its citizens and green card holders.  Generally, for those Americans genuinely living/working overseas the IRS takes the somewhat reasonable position of being in ""2nd place"" tax-wise.  That is, you are expected to pay taxes in the country you are living in, and these taxes can reduce the tax you would have owed in the USA.  Unfortunately, all of this has to be documented and tax returns are still required every year.  Your European friends may find this quite surprising as I've heard, for instance, that France will not tax you if you go live and work in Germany.   A foreign company operating in a foreign country under foreign law is not typically required to give you a W-2, 1099, or any of the forms you are used to. Indeed, you should be paying taxes in the place where you live and work, which is probably somewhat different than the USA.  Keep all these records as they may be useful for your USA taxes as well.  You are required to total up what you were paid in Euros and convert them to US$.  This will go on the income section of a 1040.  You should be paying taxes in the EU country where you live.  You can also total those up and convert to US$.  This may be useful for a foreign tax credit. If you are living in the EU long term, like over 330 days/year or you have your home and family there, then you might qualify for a very large exemption from your income for US tax purposes, called the Foreign Earned Income Exclusion.  This is explained in IRS Publication 54.  The purpose of this is primarily to avoid double taxation. FBAR is a serious thing.  In past years, the FBAR form went to a Financial Crimes unit in Detroit, not the regular IRS address.  Also, getting an extension to file taxes does not extend the deadline for the FBAR.   Some rich people have paid multi-million dollar fines over FBAR and not paying taxes on foreign accounts.  I've heard you can get a $10,000 FBAR penalty for inadvertent, non-willful violations so be sure to send those in and it goes up from there to $250k or half the value of the account, whichever is more.  You also need to know about whether you need to do FATCA reporting with your 1040.  There are indeed, a lot of obnoxious things you need to know about that came into existence over the years and are still on the law books -- because of the perpetual 'arms race' between the government and would be cheaters, non-payers and their advisors.  http://www.irs.gov/publications/p54/ http://americansabroad.org/" "There's no ""183 days"" rule. As a US citizen you must pay taxes on all your income, where you live is irrelevant." It also depends on where you work. If you move your home and your job then the date you establish residency in the new state is the key date. All income before that date is considered income for state 1, and all income on or after that date is income for state 2.  If there is a big  difference in income you will want to clearly establish residency because it impacts your wallet. If they had the same rates moving wouldn't impact your wallet, but it would impact each state. So make sure when going from high tax state to low tax state that you register your vehicles, register to vote, get a new drivers license... It becomes more complex if you move your home but not your job. In that case where you work might be the deciding factor. Same states have agreed that where you live is the deciding factor; in other cases it is not. For Virginia, Maryland, and DC you pay based on where you live if the two states involved are DC, MD, VA. But if you Live in Delaware and work in Virginia Virginia wants a cut of your income tax.  So before you move you need to research reciprocity for the two states. From Massachusetts information for Nonresident and Part-Year Resident Income, Exemptions, Deductions and Credits Massachusetts gross income includes items of income derived from   sources within Massachusetts. This includes income: a few questions later: Massachusetts residents and part-year residents are allowed a credit   for taxes due to any other jurisdiction. The credit is available only   on income reported and taxed on a Massachusetts return. Nonresidents   may not claim the taxes paid to other jurisdiction credit on their   Massachusetts Form 1-NR/PY. The credit is allowed for income taxes paid to: The credit is not allowed for: taxes paid to the U.S. government or a   foreign country other than Canada; city or local tax; and interest and   penalty paid to another jurisdiction. The computation is based on comparing the Massachusetts income tax on   income reported to the other jurisdiction to the actual tax paid to   the other jurisdiction; the credit is limited to the smaller of these   two numbers. The other jurisdiction credit is a line item on the tax form but you   must calculate it on the worksheet in the instruction booklet and also   enter the credit information on the Schedule OJC. So if you move your house to New Hampshire, but continue to work in Massachusetts you will owe income tax to Massachusetts  for that income even after you move and establish residency in New Hampshire. "What theyre fishing for is whether the money was earned in the U.S.  It's essentially an interest shelter, and/or avoiding double taxation.   They're saying if you keep income you make outside the US in a bank inside the US, the US thanks you for storing your foreign money here and doesn't tax the interest (but the nation where you earned that income might).   There is no question that the AirBNB income is ""connected with a US trade or business"".   So your next question is whether the fraction of interest earned from that income can be broken out, or whether IRS requires you to declare all the interest from that account.   Honestly given the amount of tax at stake, it may not be worth your time researching.   Now since you seem to be a resident nonresident alien, it seems apparent that whatever economic value you are creating to earn your salary, is being performed in the United States. If this is for an American company and wages paid in USD, no question, that's a US trade or business. But what if it's for a Swedish company running on Swedish servers, serving Swedes and paid in Kroner to a Swedish bank which you then transfer to your US bank? Does it matter if your boots are on sovereign US soil?  This is a complex question, and some countries (UK) say ""if your boots are in our nation, it is trade/income in our nation""... Others (CA) do not.  This is probably a separate question to search or ask. To be clear, the fact that your days as a teacher or trainee do not count toward residency, is a separate question from whether your salary as same counts as US income." Getting the first year right for any rental property is key. It is even more complex when you rent a room, or rent via a service like AirBnB. Get professional tax advice. For you the IRS rules are covered in Tax Topic 415 Renting Residential and Vacation Property and IRS pub 527 Residential Rental Property There is a special rule if you use a dwelling unit as a personal   residence and rent it for fewer than 15 days. In this case, do not   report any of the rental income and do not deduct any expenses as   rental expenses. If you reach that reporting threshold the IRS will now expect you to to have to report the income, and address the items such as depreciation. When you go to sell the house you will again have to address depreciation. All of this adds complexity to your tax situation. The best advice is to make sure that in a tax year you don't cross that threshold. When you have a house that is part personal residence, and part rental property some parts of the tax code become complex. You will have to divide all the expenses (mortgage, property tax, insurance) and split it between the two uses. You will also have to take that rental portion of the property and depreciation it. You will need to determine the value of the property before the split and then determine the value of the rental portion at the time of the split. From then on, you will follow the IRS regulations for depreciation of the rental portion until you either convert it back to non-rental or sell the property.  When the property is sold the portion of the sales price will be associated with the rental property, and you will need to determine if the rental property is sold for a profit or a loss. You will also have to recapture the depreciation. It is possible that one portion of the property could show a loss, and the other part of the property a gain depending on house prices over the decades. You can expect that AirBnB will collect tax info and send it to the IRS As a US company, we’re required by US law to collect taxpayer   information from hosts who appear to have US-sourced income. Virginia will piggyback onto the IRS rules. Local law must be researched because they may limit what type of rentals are allowed. Local law could be state, or county/city/town. Even zoning regulations could apply. Also check any documents from your Home Owners Association, they may address running a business or renting a property.  You may need to adjust your insurance policy regarding having tenants. You may also want to look at insurance to protect you if a renter is injured. "The other answer has mentioned ""factual resident"", and you have raised the existence of a U.S./Canada tax treaty in your comment, and provided a link to a page about determining residency. I'd like to highlight part of the first link: You are a factual resident of Canada for tax purposes if you keep   significant residential ties in Canada while living or travelling   outside the country. The term factual resident means that, although you left Canada, you   are still considered to be a resident of Canada for income tax   purposes. Notes If you have established ties in a country that Canada has a tax treaty   with and you are considered to be a resident of that country, but you   are otherwise a factual resident of Canada, meaning you maintain   significant residential ties with Canada, you may be considered a   deemed non-resident of Canada for tax purposes. [...] I'll emphasize that ""considered to be a resident of Canada for income tax purposes"" means you do need to file Canadian income tax returns. The Notes section does indicate the potential treaty exemption that you mentioned, but it is only a potential exemption. Note the emphasis (theirs, not mine) on the word ""may"" in the last paragraph above. Please don't assume ""may"" is necessarily favorable with respect to your situation. The other side of the ""may"" coin is ""may not"". The Determining your residency status page you mentioned in your comment says this: If you want the Canada Revenue Agency's opinion on your residency   status, complete either Form NR74, Determination of Residency Status   (Entering Canada) or Form NR73, Determination of Residency Status   (Leaving Canada), whichever applies, and send it to the International   and Ottawa Tax Services Office. To get the most accurate opinion,   provide as many details as possible on your form. So, given your ties to Canada, I would suggest that until and unless you have obtained an opinion from the Canada Revenue Agency on your tax status, you would be making a potentially unsafe assumption if you yourself elect not to file your Canadian income tax returns based on your own determination. You could end up liable for penalties and interest if you don't file while you are outside of Canada. Tax residency in Canada is not a simple topic. For instances, let's have a look at S5-F1-C1, Determining an Individual’s Residence Status. It's a long page, but here's one interesting piece:  1.44 The Courts have stated that holders of a United States Permanent Residence Card (otherwise referred to as a Green Card) are   considered to be resident in the United States for purposes of   paragraph 1 of the Residence article of the Canada-U.S. Tax   Convention. For further information, see the Federal Court of Appeal's   comments in Allchin v R, 2004 FCA 206, 2004 DTC 6468.   [...] ... whereas you are in the U.S. on a TN visa, intended to be temporary. So you wouldn't be exempt just on the basis of your visa and the existence of the treaty. The CRA would look at other circumstances. Consider the ""Centre of vital interests test"": Centre of vital interests test [...] “If the individual has a permanent home in both Contracting States, it   is necessary to look at the facts in order to ascertain with which of   the two States his personal and economic relations are closer. Thus,   regard will be had to his family and social relations, his   occupations, his political, cultural or other activities, his place of   business, the place from which he administers his property, etc. The   circumstances must be examined as a whole, but it is nevertheless   obvious that considerations based on the personal acts of the   individual must receive special attention. If a person who has a home   in one State sets up a second in the other State while retaining the   first, the fact that he retains the first in the environment where he   has always lived, where he has worked, and where he has his family and   possessions, can, together with other elements, go to demonstrate that   he has retained his centre of vital interests in the first State.” [emphasis on last sentence is mine] Anyway, I'm acquainted with somebody who left Canada for a few years to work abroad. They assumed that living in the other country for that length of time (>2 years) meant they were non-resident here and so did not have to file. Unfortunately, upon returning to Canada, the CRA deemed them to have been resident all that time based on significant ties maintained, and they subsequently owed many thousands of dollars in back taxes, penalties, and interest. If it were me in a similar situation, I would err on the side of caution and continue to file Canadian income taxes until I got a determination I could count on from the people that make the rules." When you live in your own rental property, it no longer counts as your 'rental property'. It becomes your own living property and legally you cannot get tax benefits. California is very aggressive when it comes to determining residency. While you have a legitimate defense, I suggest talking with a California-licensed CPA or EA practicing in California, which are experienced in dealing with the FTB residency audits. "IRS Pub 554 states (click to read full IRS doc):  ""Do not file a federal income tax return if you do not meet the filing requirements and are not due a refund. ... If you are a U.S. citizen or resident alien, you must file a return if your gross income for the year was at least the amount shown on the appropriate line in Table 1-1 below. "" You may not have wage income, but you will probably have interest, dividend, capital gains, or proceeds from sale of a house (and there is a special note that you must file in this case, even if you enjoy the exclusion for primary residence)" If you already filed the DC return, you can try and wait with filing the NJ return until you get the answer from DC.  You can file an extension request with the NJ division of taxation here. Or, you can file without claiming the credit, and worst case amend later and claim it if DC refuse to refund. I find it highly unlikely that DC will decide that a person staying for a couple of months over the year in hotels will count as a resident. The basis of the home is the cost of land and material. That's it.  Your time isn't added to basis. No different than if you spend 1000 hours in a soup kitchen. You deduct miles for your car and expenses you can document but you can't deduct your time.  Over 2 years, you could have a gain up to $500K per married couple and pay no tax.