How to explain an income discrepancy to the IRS?
"The IRS doesn't tax ""increased wealth"" They tax Revenue -- income.  If this money or property came to you as a gift, you would owe no tax on it but the giver probably would owe gift tax.  If it came to you as a loan, you would owe no tax on it but the lender would owe tax on any interest you pay (and must charge at least minimal interest, though they could give that to you as a gift and possibly not have it be taxable). But if came as payment for goods or services or investment or anything of that sort, and you aren't demonstrably tax-exempt, it is income and you are responsible for declaring it as such and paying tax on it."
I'm assuming you are in the US here. From a tax perspective you don't need to take any action to start a business and deduct expenses.  If you have earned income coming from a source other than a W2 paying job, then you have a business.  On your taxes, this means you file a schedule C (which is where you will deduct business expenses) and schedule SE (which computes how much FICA tax you will owe on your business income).  When we talk about starting a business, we usually are talking about creating a corporation or LLC.  No particular tax advantage to that in your case, but there could be liability advantages, if you are concerned about that. If you file losses consistently year after year, the IRS might try and classify your business as a hobby.  That's what you should worry about.  I suppose incorporating might reduce the probability of that, but it might not.  Keep good records in case you need to argue with the IRS.  If you do have to argue with them, they will want to ensure that you only used the laptop and internet for your business.  That's a big if, but it's a potentially scary one. IRS Guidelines on hobby vs. business income Note: besides deducting expenses, another advantage of self-employment is opening a solo-401(k) or SEP or SIMPLE IRA.  These potentially allow you to set aside a lot more money than the typical IRA and 401(k) arrangement.  Thing is, you have to have a lot more earned income to really take advantage of them, but let's hope your app gets you there. Forms 1099 and W2 are mutually exclusive. Employers file both, not the employees. 1099 is filed for contractors, W2 is filed for employees. These terms are defined in the tax code, and you may very well be employee, even though your employer pays you as a contractor and issues 1099. You may complain to the IRS if this is the case, and have them explain the difference to the employer (at the employer's expense, through fines and penalties). Employers usually do this to avoid providing benefits (and by the way also avoid paying payroll taxes). If you're working as a contractor, lets check your follow-up questions: where do i pay my taxes on my hourly that means does the IRS have a   payment center for the tax i pay. If you're an independent contractor (1099), you're supposed to pay your own taxes on a quarterly basis using the form 1040-ES. Check this page for more information on your quarterly payments and follow the links. If you're a salaried employee elsewhere (i.e.: receive W2, from a different employer), then instead of doing the quarterly estimates you can adjust your salary withholding at that other place of work to cover for your additional income. To do that you submit an updated form W4 there, check with the payroll department on details. Is this a hobby tax No such thing, hobby income is taxed as ordinary income. The difference is that hobby cannot be at loss, while regular business activity can. If you're a contractor, it is likely that you're not working at loss, so it is irrelevant. what tax do i pay the city? does this require a sole proprietor   license? This really depends on your local laws and the type of work you're doing and where you're doing it. Most likely, if you're working from your employer's office, you don't need any business license from the city (unless you have to be licensed to do the job). If you're working from home, you might need a license, check with the local government. These are very general answers to very general questions. You should seek a proper advice from a licensed tax adviser (EA/CPA licensed in your state) for your specific case. "Others have given a lot of advice about how to invest, but as a former expat I wanted to throw this in:  US citizens living and investing overseas can VERY easily run afoul of the IRS.  Laws and regulations designed to prevent offshore tax havens can also make it very difficult for expats to do effective investing and estate planning. Among other things, watch out for: US citizens owe US income tax on world income regardless of where they live or earn money FBAR reporting requirements affect foreign accounts valued over $10k The IRS penalizes (often heavily) certain types of financial accounts. Tax-sheltered accounts (for education, retirement, etc.) are in the crosshairs, and anything the IRS deems a ""foreign-controlled trust"" is especially bad. Heavy taxes on investment not purchased from a US stock exchange Some US states will demand income taxes from former residents (including expats) who cannot prove residency in a different US state. I believe California is neutral in that regard, at least. I am neither a lawyer nor an accountant nor a financial advisor, so please take the above only as a starting point so you know what sorts of questions to ask the relevant experts." "I'm assuming that you're in the US.  In that case, the answer is that it depends on how your company set up its reimbursement plan.  The IRS recognizes ""accountable"" and ""nonaccountable"" plans.  Accountable plans have to meet certain requirements.  Anything else is nonaccountable.  If you are reimbursed according to an accountable plan, this is not income and should not be reported to the IRS at all.  If you are reimbursed under a nonaccountable plan, then this is income but you might be able to get a deduction on your tax return if you itemize. Most established companies have accountable plans for normal business expenses. More detail from IRS: http://www.tax.gov/TaxabilityCertainFringeBenefits/pdf/Accountable_v_Nonaccountable_Plans_Methods_of_Reimbursing_Employees_for_Expense.pdf" "Take a look at IRS Publication 15. This is your employer's ""bible"" for withholding the correct amount of taxes from your paycheck. Most payroll systems use what this publication defines as the ""Percentage Method"", because it requires less data to be entered into the system in order to correctly compute the amount of withholding. The computation method is as follows: Taxes are computed ""piecewise""; dollar amounts up to A are taxed at X%, and then dollar amounts between A and B are taxed at Y%, so total tax for B dollars is A*X + (B-A)*Y. Here is the table of rates for income earned in 2012 on a daily basis by a person filing as Single: To use this table, multiply all the dollar amounts by the number of business days in the pay period (so don't count more than 5 days per week even if you work 6 or 7). Find the range in which your pay subject to withholding falls, subtract the ""more than"" amount from the range, multiply the remainder by the ""W/H Pct"" for that line, and add that amount to the ""W/H Base"" amount (which is the cumulative amount of all lower tax brackets). This is the amount that will be withheld from your paycheck if you file Single or Married Filing Separately in the 2012 TY. If you file Married Filing Jointly, the amounts defining the tax brackets are slightly different (there's a pretty substantial ""marriage advantage"" right now; withholding for a married person in average wage-earning range is half or less than a person filing Single.). In your particular example of $2500 biweekly (10 business days/pp), with no allowances and no pre-tax deductions: So, with zero allowances, your employer should be taking $451.70 out of your paycheck for federal withholding. Now, that doesn't include PA state taxes of 3.07% (on $2500 that's $76.75), plus other state and federal taxes like SS (4.2% on your gross income up to 106k), Medicare/Medicaid (1.45% on your entire gross income), and SUTA (.8% on the first $8000). But, you also don't get a refund on those when you fill out the 1040 (except if you claim deductions against state income tax, and in an exceptional case which requires you to have two jobs in one year, thus doubling up on SS and SUTA taxes beyond their wage bases). If you claim 3 allowances on your federal taxes, all other things being equal, your taxable wages are reduced by $438.45, leaving you with taxable income of $2061.55. Still in the 25% bracket, but the wages subject to that level are only $619.55, for taxes in the 25% bracket of $154.89, plus the withholding base of $187.20 equals total federal w/h of $342.09 per paycheck, a savings of about $110pp. Those allowances do not count towards other federal taxes, and I do not know if PA state taxes figure these in. It seems odd that you would owe that much in taxes with your withholding effectively maxed out, unless you have some other form of income that you're reporting such as investment gains, child support/alimony, etc. With nobody claiming you as a dependent and no dependents of your own, filing Single, and zero allowances on your W-4 resulting in the tax withholding above, a quick run of the 1040EZ form shows that the feds should owe YOU $1738.20. The absolute worst-case scenario of you being claimed as a dependent by someone else should still get you a refund of $800 if you had your employer withhold the max. The numbers should only have gotten better if you're married or have kids or other dependents, or have significant itemized deductions such as a home mortgage (on which the interest and any property taxes are deductible). If you itemize, remember that state income tax, if any, is also deductible. I would consult a tax professional and have him double-check all your numbers. Unless there's something significant you haven't told us, you should not have owed the gov't at the end of the year." Estimated tax payments should be a reasonable estimate of what you owe for that time period. If it seems reasonable to you, it is probably reasonable. Sure, you can adjust for varying-length periods. As long as, in the end, you can and do pay what you owe, and don't underpay the estimated/withholding by enough that you owe a penalty, the IRS isn't all that picky about how the money is actually distributed through the year. "Buried on the IRS web site is the ""Fillable Forms Error Search Tool"". Rather than including an explanation of errors in the rejection email itself, you're expected to copy and paste the error email into this form, which gives more details about what's wrong. (Don't blame me; I didn't design it.) If I copy your error message in, here's the response I get: There is an error with the “primary taxpayer’s Date of Birth” in Step 2 Section 4.  The date of birth that was entered does not match IRS records. Make sure you enter the correct birth date, in the correct format, in the correct space. Scroll down, and enter the current date (“Today’s date”).  Today’s date is the day you intend to e-file the return again. Also, if you are making an electronic payment you must re-date that section. E-File your return. You say that you've already checked your birthday, so I don't know as this is particularly helpful. If you're confident that it's correct and in the right place, I think your next step needs to be contacting the IRS directly. They have a link at the bottom of the error lookup response on how to contact them specifically about their solution not working, or you could try contacting your local IRS office or giving them a call." For purposes of the EIN the address is largely inconsequential. The IRS cannot (read: won't) recover the EIN if you fail to write it down after the website generates it for you. On your actual tax form the address is more consequential, and this is more so a question of consistency than anything. But an entity can purchase property anywhere and have a different address subsequent years. Paying the actual taxes means more than the semantical inconsistencies. The whole purpose of separate accounts is to make an audit easier, so even if someone imagines that some action (such as address ambiguity) automatically triggers an audit, all your earnings/purchases are not intermingled with personal stuff, which just streamlines the audit process. Consequences (or lack thereof) aside, physical means where physical property is. So if you have an actual mailing address in your state, you should go with that. Obviously, this depends on what arrangement you have with your registered agent, if all addresses are in Wyoming then use the Wyoming address and let the Registered Agent forward all your mail to you. Don't forget your $50 annual report in Wyoming ;) How did you open a business paypal without an EIN? Business bank accounts? Hm... this is for liability purposes...