When one pays Quarterly Estimated Self Employment Taxes, exactly what are they paying?
"From the IRS page on Estimated Taxes (emphasis added): Taxes must be paid as you earn or receive income during the year, either through withholding or estimated tax payments. If the amount of income tax withheld from your salary or pension is not enough, or if you receive income such as interest, dividends, alimony, self-employment income, capital gains, prizes and awards, you may have to make estimated tax payments. If you are in business for yourself, you generally need to make estimated tax payments. Estimated tax is used to pay not only income tax, but other taxes such as self-employment tax and alternative minimum tax. I think that is crystal clear that you're paying income tax as well as self-employment tax. To expand a bit, you seem to be confusing self-employment tax and estimated tax, which are not only two different things, but two different kinds of things.  One is a tax, and the other is just a means of paying your taxes. ""Self-employment tax"" refers to the Social Security and Medicare taxes that you must pay on your self-employment income.  This is an actual tax that you owe.  If you receive a W-2, half of it is ""invisibly"" paid by your employer, and half of it is paid by you in the form of visible deductions on your pay stub.  If you're self-employed, you have to pay all of it explicitly. ""Estimated tax"" does not refer to any actual tax levied on anyone.  A more pedantically correct phrasing would be ""estimated tax payment"".  Estimated taxes are just payments that you make to the IRS to pay tax you expect to owe.  Whether you have to make such payments depends on how much tax you owe and whether you've paid it by other means.  You may need to pay estimated tax even if you're not self-employed, although this would be unusual.  (It could happen, for instance, if you realized large capital gains over the year.)  You also may be self-employed but not need to pay estimated tax (if, for instance, you also have a W-2 job and you reduce your withholding allowances to have extra tax withheld). That said, if you earn significant income from self-employment, you'll likely have to make estimated tax payments.  These are prepayments of the income tax and Social Security/Medicare taxes you accrue based on your self-employment income. As Pete B. mentioned in his answer, a possible reason that your estiamtes are low is because some taxes have already been withheld from the paychecks you received so far during the year (while you were an employee).  These represent tax payments you've already made; you don't need to pay that money a second time, but you may need to make estimated tax payments for your income going forward." "Your question does not say this explicitly, but I assume that you were once a W-2 employee.  Each paycheck a certain amount was withheld from your check to pay income, social security, and medicare taxes.  Just because you did not receive that amount of money earned does not mean it was immediately sent to the IRS.  While I am not all that savvy on payroll procedures, I recall an article that indicated some companies only send in withheld taxes every quarter, much like you are doing now.  They get a short term interest free loan.  For example taxes withheld by a w-2 employee in the later months of the year may not be provided to the IRS until 15 January of the next year.   You are correct in assuming that if you make 100K as a W-2 you will probably pay less in taxes than someone who is 100K self employed with 5K in expenses.  However there are many factors.  Provided you properly fill out a 1040ES, and pay the correct amount of quarterly payments, you will almost never owe taxes.  In fact my experience has been the forms will probably allow you to receive a refund.  Tax laws can change and one thing the form did not include last year was the .9% Medicare surcharge for high income earners catching some by surprise.    As far as what you pay into is indicative of the games the politicians play.  It all just goes into a big old bucket of money, and more is spent by congress than what is in the bucket.  The notion of a ""social security lockbox"" is pure politics/fantasy as well as the notion of medicare and social security taxes.  The latter were created to make the actual income tax rate more palatable.     I'd recommend getting your taxes done as early as possible come 1 January 2017.  While you may not have all the needed info, you could firm up an estimate by 15 Jan and modify the amount for your last estimated payment.  Complete the taxes when all stuff comes in and even if you owe an amount you have time to save for anything additional.  Keep in mind, between 1 Jan 17 and 15 Apr 17 you will earn and presumably save money to use towards taxes.  You can always ""rob"" from that money to pay any owed tax for 2016 and make it up later. All that is to say you will be golden because you are showing concern and planning.  When you hear horror stories of IRS dealings it is most often that people spent the money that should have been sent to the IRS."
I've had zero taxable income for the past 2 years and yet the calculations say I owe the government $250 for each year for the Self Employment tax.  How can they charge a non-zero tax on my income when my taxable income is zero?  That is theft. That demands reform. This is wrong.  It should be  or  Now, to get back to self-employment tax.  Self-employment tax is weird.  It's a business tax.  From the IRS perspective, any self-employed person is a business.  So, take your income X and divide by 1.0765 (6.2% Social Security and 1.45% Medicare).  This gives your personal income.  Now, to calculate the tax that you have to pay, multiply that by .153 (since you have to pay both the worker and employer shares of the tax).   So new calculation  or they actually let you do  which is better for you (smaller).   And your other calculations change apace.   And like I said, you can simplify Q1se to  and your payment would be  Now, to get to the second quarter.  Like I said, I'd calculate the income through the second quarter.  So recalculate A based on your new numbers and use that to calculate Q2i.   or  Note that this includes income from both the first and second quarters.  We'll reduce to just the second quarter later.  This also has you paying for all of June even though you may not have been paid when you make the withholding payment.  That's what they want you to do.   But we aren't done yet.  Your actual payment should be  or  Because Q2ft and Q2se are what you owe for the year so far.  Q1ft + Q1se is what you've already paid.  So you subtract those from what you need to pay in the second quarter.  In future quarters, this would be  All that said, don't stress about it.  As a practical matter, so long as you don't owe $1000 or more when you file your actual tax return, they aren't going to care.  So just make sure that your total payments match by the payment you make January 15th.   I'm not going to try to calculate for the state.  For one thing, I don't know if your state uses Q1i or Q1pi as its base.  Different states may have different rules on that.  If you can't figure it out, just use Q1i, as that's the bigger one.  Fix it when you file your annual return.  The difference in withholding is going to be relatively small anyway, less than 1% of your income. Do you have a regular job, where you work for somebody else and they pay you a salary? If so, they should be deducting estimated taxes from your paychecks and sending them in to the government. How much they deduct depends on your salary and what you put down on your W-4. Assuming you filled that out accurately, they will withhold an amount that should closely match the taxes you would owe if you took the standard deduction, have no income besides this job, and no unusual deductions. If that's the case, come next April 15 you will probably get a small refund. If you own a small business or are an independent contractor, then you have to estimate the taxes you will owe and make quarterly payments. If you're worried that the amount they're withholding doesn't sound right, then as GradeEhBacon says, get a copy of last year's tax forms (or this year's if they're out by now) -- paper or electronic -- fill them out by estimating what your total income will be for the year, etc, and see what the tax comes out to be. Don't overthink it. As an employee, whether of your own corporation or of someone else, you get a salary and there are deductions taken out. As the owner of a business you get (hopefully) business profits as well. And, in general, you often have other sources of income from investments, etc. Your estimated tax payments are based on the difference between what was withheld from your salary and what you will owe, based on salary, business income, and other sources. So, in essence, you just add up all the income you expect, estimate what the tax bill will be, and subtract what's been withheld. That's your estimated tax payment. I heard that a C-Corp being a one person shop (no other employees but the owner) can pay for the full amount 100% of personal rent if the residence is being used as a home office. Sure. Especially if you don't mind being audited. Technically, it doesn't matter how the money gets where it goes as long as the income tax filings accurately describe the tax situation. But the IRS hates it when you make personal expenses from a business account, even if you've paid the required personal income tax (because their computers simply aren't smart enough to keep up with that level of chaos). Also, on a non-tax level, commingling of business and personal funds can reduce the effectiveness of your company's liability protection and you could more easily become personally liable if the company goes bankrupt. From what I understand the 30% would be the expense, and the 70% profit distribution. I recommend you just pay yourself and pay the rent from your personal account and claim the allowed deductions properly like everyone else. Why & when it would make sense to do this? Are there any tax benefits? Never, because, no. You would still have to pay personal income tax on your 70% share of the rent (the 30% you may be able to get deductions for but the rules are quite complicated and you should never just estimate). The only way to get money out of a corporation without paying personal income tax is by having a qualified dividend. That's quite complicated - your accounting has to be clear that the money being issued as a qualified dividend came from an economic profit, not from a paper profit resulting from the fact that you worked hard without paying yourself market value. Alright, team!   I found answers to part 1) and part 2) that I've quote below, but still need help with 3).  The facts in the article below seem to point to the ability for the LLC to contribute profit sharing of up to 25% of the wages it paid SE tax on.  What part of the SE tax is that?  I assume the spirit of the law is to only allow the 25% on the taxable portion of the income, but given that I would have crossed the SS portion of SE tax, I am not 100%.  (From http://www.sensefinancial.com/services/solo401k/solo-401k-contribution/) Sole Proprietorship Employee Deferral The owner of a sole proprietorship who is under the age of 50 may make   employee deferral contributions of as much as $17,500 to a Solo 401(k)   plan for 2013 (Those 50 and older can tack on a $5,500 annual catch-up   contribution, bringing their annual deferral contribution to as much   as $23,000). Solo 401k contribution deadline rules dictate that plan   participant must formally elect to make an employee deferral   contribution by Dec. 31. However, the actual contribution can be made   up until the tax-filing deadline.  Pretax and/or after-tax (Roth)   funds can be used to make employee deferral contributions. Profit Sharing Contribution A sole proprietorship may make annual profit-sharing contributions to   a Solo 401(k) plan on behalf of the business owner and spouse.   Internal Revenue Code Section 401(a)(3) states that employer   contributions are limited to 25 percent of the business entity’s   income subject to self-employment tax. Schedule C sole-proprietors   must base their maximum contribution on earned income, an additional   calculation that lowers their maximum contribution to 20 percent of   earned income. IRS Publication 560 contains a step-by-step worksheet   for this calculation. In general, compensation can be defined as your   net earnings from self-employment activity.  This definition takes   into account the following eligible tax deductions: (1) the deduction   for half of self-employment tax and (2) the deduction for   contributions on your behalf to the Solo 401(k) plan.  A business   entity’s Solo 401(k) contributions for profit sharing component must   be made by its tax-filing deadline. Single Member LLC Employee Deferral The owner of a single member LLC who is under the age of 50 may make   employee deferral contributions of as much as $17,500 to a Solo 401(k)   plan for 2013 (Those 50 and older can tack on a $5,500 annual catch-up   contribution, bringing their annual deferral contribution to as much   as $23,000). Solo 401k contribution deadline rules dictate that plan   participant must formally elect to make an employee deferral   contribution by Dec. 31. However, the actual contribution can be made   up until the tax-filing deadline.  Pretax and/or after-tax (Roth)   funds can be used to make employee deferral contributions. Profit Sharing Contribution A single member LLC business may make annual profit-sharing   contributions to a Solo 401(k) plan on behalf of the business owner   and spouse. Internal Revenue Code Section 401(a)(3) states that   employer contributions are limited to 25 percent of the business   entity’s income subject to self-employment tax. Schedule C   sole-proprietors must base their maximum contribution on earned   income, an additional calculation that lowers their maximum   contribution to 20 percent of earned income. IRS Publication 560   contains a step-by-step worksheet for this calculation. In general,   compensation can be defined as your net earnings from self-employment   activity. This definition takes into account the following eligible   tax deductions: (i) the deduction for half of self-employment tax and   (ii) the deduction for contributions on your behalf to the Solo   401(k).  A single member LLC’s Solo 401(k) contributions for profit   sharing component must be made by its tax-filing deadline. "See Publication 505, specifically the section on ""Annualized Income Installment Method"", which says: If you do not receive your income evenly throughout the year (for example, your income from a repair shop you operate is much larger in the summer than it is during the rest of the year), your required estimated tax payment for one or more periods may be less than the amount figured using the regular installment method. The publication includes a worksheet and explanation of how to calculate the estimated tax due for each period when you have unequal income.  If you had no freelance income during a period, you shouldn't owe any estimated tax for that period. However, the process for calculating the estimated tax using this method is a good bit more complex and confusing than using the ""short"" method (in which you just estimate how much tax you will owe for the year and divide it into four equal pieces).  Therefore, in future years you might want to still use the equal-payments method if you can swing it.  (It's too late for this year since you missed the April deadline for the first payment.)  If you can estimate the total amount of freelance income you'll receive (even though you might not be able to estimate when you'll receive it), you can probably still use the simpler method.  If you really have no idea how much money you'll make over the year, you could either use the more complex computation, or you could use a very high estimate to ensure you pay enough tax, and you'll get a refund if you pay too much." Do you have any insight on average *effective* rates paid by SE owners?  As a counterpoint to your (very valid) links, filing as S-corp allows for taxes on distributions to be exempt from payroll tax and taxed at much lower rates. Also, being SE allows for various deductions not possible for wage earners. There's probably other examples not immediately coming to mind.  Also, SE taxes equal taxes otherwise paid by employer + employee. It's just that those employer taxes don't appear on the employee's paystub so not everyone realizes this. If you have a one-time event, you are allowed to make a single estimated payment for that quarter on Form 1040-ES.  People seem to fear that if they make one such payment they will need to do it forevermore, and that is not true.  The IRS instructions do kind of read that way, but that's because most people who make estimated payment do so because of some repeating circumstance like being self-employed. In addition, you may qualify for one or more waivers on a potential underpayment penalty when you file your Form 1040 even if you don't make an estimated payment, and you may reduce or eliminate any penalty by annualizing your income - which is to say breaking it down by quarter rather than the full year.  Check on the instructions for Form 2210 for more detail, including Schedule AI for annualizing income.  This is some work, but it might be worthwhile depending on your situation. https://www.irs.gov/instructions/i2210/ch02.html You will not necessarily incur a penalty.  You can potentially use the Annualized Income Installment method, which allows you to compute the tax due for each quarter based on income actually earned up to that point in the year.  See Publication 505, in particular Worksheet 2-9.  Form 2210 is also relevant as that is the form you will use when actually calculating whether you owe a penalty after the year is over. On my reading of Form 2210, if you had literally zero income during the first quarter, you won't be expected to make an estimated tax payment for that quarter (as long as you properly follow the Annualized Income Installment method for future quarters).  However, you should go through the calculations yourself to see what the situation is with your actual numbers. You must pay your taxes at the quarterly intervals. For most people the withholding done by their employer satisfies this requirement. However, if your income does not have any withholding (or sufficient), then you must file quarterly estimated tax payments.  Note that if you have a second job that does withhold, then you can adjust your W4 to request further withholding there and possibly reduce the need for estimated payments.  Estimated tax payments also come into play with large investment earnings. The amount that you need to prepay the IRS is impacted by the safe harbor rule, which I am sure others will provide the exact details on. Assuming you are Resident Indian. As per Indian Income Tax  As per section 208 every person whose estimated tax liability for the year exceeds Rs.   10,000, shall pay his tax in advance in the form of “advance tax”. Thus, any taxpayer   whose estimated tax liability for the year exceeds Rs. 10,000 has to pay his tax in   advance by the due dates prescribed in this regard. However, as per section 207, a   resident senior citizen (i.e., an individual of the age of 60 years or above) not having any income from business or profession is not liable to pay advance tax.   In other words, if a person satisfies the following conditions, he will not be liable to pay advance tax:   Hence only self assessment tax need to be paid without any interest. Refer the full guideline on Income tax website One possibility that I use: I set up an LLC and get paid through that entity. Then I set up a payroll service through Bank of America and set up direct deposit so that it is free.  I pay myself at 70% of my hourly rate based on the number of hours I work, and the payroll service does all the calculations for me and sets up the payments to the IRS.  Typically money is left over in my business account. When tax time rolls around, I have a W2 from my LLC and a 1099 from the company I work for. I put the W2 into my personal income, and for the business  I enter the revenue on the 1099 and the payroll expenses from paying myself; the left over in the business account is taxed as ordinary income. Maybe it's overkill, but setting up the LLC makes it possible to (a) set up a solo 401(k) and put up to $51k away tax-free, and (b) I can write off business expenses more easily. I agree with your strategy of using a conservative estimate to overpay taxes and get a refund next year. As a self-employed individual you are responsible for paying self-employment tax (which means paying Social Security and Medicare tax for yourself as both: employee and an employer.) Current Social Security Rate is 6.2% and Medicare is 1.45%, so your Self-employment tax is 15.3% (7.65%X2) Assuming you are single, your effective tax rate will be over 10% (portion of your income under $ 9,075), but less than 15% ($9,075-$36,900), so to adopt a conservative approach, let's use the 15% number.  Given Self-employment and Federal Income tax rate estimates, very conservative approach, your estimated tax can be 30% (Self-employment tax plus income tax) Should you expect much higher compensation, you might move to the 25% tax bracket and adjust this amount to 40%. Havoc P's answer is good (+1). Also don't forget the other aspects of business income: state filing fees, county/city filing fees, business licenses, etc.  Are there any taxes you have to collect from your customers? If you expect to make more this year, then you should make estimated quarterly tax payments.  The first one for 2011 is due around the same time as your federal income tax filing.