Definition of gross income (Arizona state tax filing requirements)
Disclaimer: I am not a tax professional. Please don't rely on this answer in lieu of professional advice. If your sole source of Arizona income is your commercial property, use the number on line 17 of your federal form 1040. This number is derived from your federal Schedule E. If you have multiple properties (or other business income from S corporations or LLCs), use only the Schedule E amount pertaining to the AZ property. "I would suggest reading through page 1 of the Arizona Nonresident form instructions at the web address below: https://www.azdor.gov/Portals/0/ADOR-forms/TY2015/10100/10177_inst.pdf To quote: ""You are subject to Arizona income tax on all income derived from Arizona sources. If you are in this state for a temporary or transitory purpose or did not live in Arizona but received income from sources within Arizona during 2015, you are subject to Arizona tax. Income from Arizona sources includes the following: ...the sale of Arizona real estate...""" Many states have a simple method for assessing income tax on nonresidents.  If you have $X income in State A where you claim nonresident status and  $Y income overall, then you owe State A a fraction (X/Y) of the income  tax that would have been due on $Y income had you been a resident of State A.  In other words, compute the state income tax on $Y as per State A rules, and send us (X/Y) of that amount.  If you are a resident of State B, then State B  will tax you on $Y but give you some credit for taxes paid to State A. Thus, you might be required to file a State A income tax return regardless of how small $X is.  As a practical matter, many commercial real-estate  investments are set up as limited partnerships in which most of the annual taxable income is a small amount of portfolio income (usually interest income that you report on Schedule B of Form 1040), and the annual  bottom line is lots of passive losses which the limited partners report (but do not get to deduct) on the Federal return.  As a result, State A is unlikely to come after you for the tax on, say, $100 of interest income each year because it will cost them more to go after you than they will  recover from you. But, when the real estate is sold, there will (hopefully) be a big capital gain, most of which  will be sheltered from Federal tax since the passive losses finally get  to be deducted.  At this point, State A is not only owed a lot of money (it knows nothing of your passive losses etc) but, after it processes the income tax return that you filed for that year, it will likely demand that you file income tax returns for previous years as well.
"Yep. You're single, you're possibly still a dependent on your parent's taxes (in lieu of rent), and you're finally bringing home bacon instead of bacon bits. Welcome to the working world. Let's say your gross salary is the U.S. median of $50,000. With bi-weekly checks (26 a year; common practice) you're getting $1923.08 per paycheck. In the 2013 ""Percentage Method"" tax tables, here's how your federal withholding is calculated as a single person paid biweekly: Federal taxes are computed piecewise; the amount up to A is taxed at X%, then the amount between A and B is taxed at Y%, so if you make $C, between A and B, the tax is (A*X) + (C-A)*Y. The amount A*X is included in the ""base amount"" for ease of calculation. Back to our example; let's say you're getting $1923.08 gross wages per check. That puts you in the 25% marginal bracket. You pay the sum of all lesser brackets (which is the ""base amount"" of the 25% bracket), plus the 25% marginal rate on every dollar that falls within the bracket. That's 191.95 + (1923.08 - 1479) * .25 = 191.95 + (444.08 * .25) = 191.95 + 111.02 = $302.97 per paycheck. The ""effective"" tax rate on the total amount, as if you were being charged a flat tax, is 15.75%, and this is just for the federal income tax. Add to this MA state income taxes (5.25% flat tax), FICA (aka Medicare; 1.45% flat) and SECA (aka Social Security; 6.2% up to a ""wage base"" that $50k doesn't even approach), and your effective tax rate on each dollar you earn is 15.75% + 5.25% + 1.45% + 6.2% = 28.65%. This doesn't include any state unemployment taxes that may be withheld separately, but as the rate I come up with is pretty darn close to what you've figured (meaning I slightly overestimated your gross income and thus your effective tax rate), my bet is that SUTA's either employer-paid in MA, or it's just part of MA state income tax. It gets better, at least at the federal level: The amount of your state income taxes is tax-deductible at the federal level if you itemize your deductions. That may not be a factor for you as you'd have to come up with more than $6,100 of other tax-deductible expenses to make itemizing the better option than taking the standard deduction (big-ticket items are mortgage expenses other than principal payments, hospital stays such as for childbirth or major accident, and state and local taxes such as sales, property and income). If you can claim yourself as a dependent (meaning your parents can't), then $150 of each check ($3,900 of your annual salary) is no longer taxed for federal withholding, lowering the amount of money taxed at the 25% marginal rate. You effectively save $37.50 biweekly ($975 annually) in taxes. Get married and file jointly, and your spouse, her personal exemption, and an extra standard deduction amount (if you don't itemize) go on your taxes. The tax rates for married couples filing jointly are also lower; they're currently calculated (or were in 2012) to be the same as if two equal earners were to file separately, so if your spouse doesn't work, your taxes on the single income are calculated at the rates you'd get if you earned half as much. It doesn't work out to half the taxes, but it is a significant ""marriage advantage"". Have kids, and each one is another little $3,900 tax write-off. It's nowhere near the cost of having or raising the child, but it helps, and having kids isn't about the money. Owning a home, making charitable deductions, having medical expenses, etc are a toss-up. The magic number in 2013 is $12,200 for a married couple, $6,100 for a single person. If your mortgage interest, insurance premiums, property taxes, medical expenditures, charitable donations, any contributions from your take-home pay to a tax-deferred savings account (typically these accounts are paid into by your employer as a ""pre-tax deduction"" and never show up as taxable income, but you could just as easily move money from your take-home pay into tax-deferred savings) and any other tax-deductible payments add up to more than 12 large, then itemize. If not, take your standard deduction. As a single taxpayer just starting out in life, you probably don't have any of these types of expenditures, certainly not enough to give up the SD. I did the math on my own taxes in 2012, and was surprised at how little the government actually gets of my paycheck when all's said and done. Remember back in the summer of 2012 when everyone was mad at Romney for making millions and only paying an effective income tax rate of 14%, which was compared to the middle class's marginal rate of 25-28%? Well, my family of 3, living on a little more than the median income from one earner (me), taking the married standard deduction, three personal exemptions, and a little extra for student loan interest, paid an effective federal income tax rate of something like 3.5%. Of course, the FICA and SS taxes don't allow any deductions (not even for retirement savings), so add in the 4.2% SS (in 2012) and 1.45% FICA and the full federal gimme was more like 9-10%." Starting and running a business in the US is actually a lot less complicated than most people think. You mention incorporation, but a corporation (or even an S-Corp) isn't generally the best entity to start a business with . Most likely you are going to want to form an LLC instead this will provide you with liability protection while minimizing your paperwork and taxes. The cost for maintaining an LLC is relatively cheap $50-$1000 a year depending on your state and you can file the paperwork to form it yourself or pay an attorney to do it for you. Generally I would avoid the snake oil salesman that pitch specific out of state LLCs (Nevada, Delaware etc..) unless you have a specific reason or intend on doing business in the state.  With the LLC or a Corporation you need to make sure you maintain separate finances. If you use the LLC funds to pay personal expenses you run the risk of loosing the liability protection afforded by the LLC (piercing the corporate veil). With a single member LLC you can file as a pass through entity and your LLC income would pass through to your federal return and taxes aren't any more complicated than putting your business income on your personal return like you do now. If you have employees things get more complex and it is really easiest to use a payroll service to process state and federal tax with holding.  Once your business picks up you will want to file quarterly tax payments in order to avoid an under payment penalty.  Generally, most taxpayers will avoid the under payment penalty if they owe less than $1,000 in tax after subtracting their withholdings and credits, or if they paid at least 90% of the tax for the current year, or 100% of the tax shown on the return for the prior year, whichever is smaller. Even if you get hit by the penalty it is only 10% of the amount of tax you didn't pay in time. If you are selling a service such writing one off projects you should be able to avoid having to collect and remit sales tax, but this is going to be very state specific. If you are selling software you will have to deal with sales tax assuming your state has a sales tax. One more thing to look at is some cities require a business license in order to operate a business within city limits so it would also be a good idea to check with your city to find out if you need a business license. As you have indicated, the 1042-S reflects no income or withholding.  As such, you are not required to file a US tax return unless you have other income from the US.  Gains on stocks are not reported until realized upon sale. FYI, your activity does not fit the requirements of being engaged in a trade or business activity.  While the definition is documented in several places of the Code, I have attached Publication 519 which most accurately represents the application to your situation as you have described it. https://www.irs.gov/publications/p519/ch04.html#en_US_2016_publink1000222308 "A loan is not a taxable income. Neither is a gift. Loans are repaid with interest. The interest is taxable income to the lender, and may or may not be deductible to the borrower, depending on how the loan proceeds were used. Gifts are taxable to the donor (the person giving the gift) under the gift tax, they're not a taxable income to the recipient. Some gifts are exempt or excluded from gift tax (there's the annual exemption limit, lifetime exclusion which is correlated to the estate tax, various specific purpose gifts or transfers between spouses are exempt in general).  If you trade for something of equal value, is that considered income? Yes. Sale proceeds are taxable income, however your basis in the item sold is deductible from it. If you borrow a small amount of money for a short time, is that considered income? See above. Loan proceeds are not income. does the friend have to pay taxes when they get back their $10? No, repayment of the loan is not taxable income. Interest on it is. Do you have to pay taxes if you are paid back in a different format than originally paid? Form of payment doesn't matter. Barter trade doesn't affect the tax liability. The friend sold you lunches and you paid for them. The friend can deduct the cost of the lunches from the proceeds. What's left - is taxable income. Everything is translated to the functional currency at the fair market value at the time of the trade. you are required to pay taxes on the gross amount Very rarely taxes apply to gross income. Definitely not the US Federal Income taxes for individuals. An example of an exception would be the California LLC taxes. The State of California taxes LLCs under its jurisdiction on gross proceeds, regardless of the actual net income. This is very uncommon. However, the IRC (the US Federal Tax Code) is basically ""everything is taxable except what's not"", and the cost of generating income is one of the ""what's not"". That is why you can deduct the basis of the asset from your gross proceeds when you sell stuff and only pay taxes on the net difference." Yes, at that stage income is income regardless of source. Assuming you're talking about overall profit, not just the individual wins when gambling. "As was stated, households earning over $250k/yr don't all get their income one way. Below that threshold, even in the six figure range, most households are in one of two categories; salary/wage/commission workers, and those living off of nest eggs/entitlements (retired, disabled, welfare). Above $250k, though, are a lot of disparate types of incomes: Now, you specifically mentioned wage earners above $250k. Wage earners typically have the same ""tax havens"" that most of us do; the difference is usually that they are better able to make use of them: In other words, there are many ways for a high-end wage earner to live the good life and write a lot of it off." "You are on the right track, for tax purposes its all ordinary income at the end of 2016. If the free lance ""employer"" will withhold fed,state and local tax, then that takes care of your estimated tax. If they can't or won't, you will need to make those estimates and make payments quarterly for the fed and state tax at your projected tax liability.  Or, you can bump up withholding by your day job employer and cover your expected tax liability at year end without making estimated tax payments." No, it would not show up on the income statement as it isn't income. It would show up in the cash flow statement as a result of financing activities.