Calculate Estimated Tax on Hobby Business LLC
"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." "I assume your employer does standard withholding?  Then what you need to do is figure what bracket that puts you in after you've done all your normal deductions.  Let's say it's 25%.  Then multiply your freelance income after business expenses, and that's your estimated tax, approximately.  (Unless the income causes you to jump a bracket.) To that you have to add approximately 12-13% Social Security/Medicare for income between the $90K and $118,500.  Filling out Form 1040SSE will give you a better estimate. But there is a ""safe harbor"" provision, in that if what you pay in estimated tax (and withholding) this year is at least as much as you owed last year, there's no penalty.  I've always done mine this way, dividing last year's tax by 4, since my income is quite variable, and I've never been able to make sense of the worksheets on the 1040-ES."
"If this is truly hobby income (you do not intend to operate as a business and don't have a profit motive) then report the income on Line 21 (""other income"") of form 1040.  If this is a business, then the income and expenses belong on a Schedule C to form 1040. The distinction is in the treatment of profits and losses - your net profits on a business are subject to self-employment tax, while hobby income is not. Net losses on a business are deductible against other income; net losses on a hobby are miscellaneous itemized deductions in the ""2%"" box on Schedule A.  From a tax point of view, selling apps and accepting donations are different. Arguably, donations are gifts; gifts are not taxable income.  The hobby/business and income/gift distinctions are tricky. If the dollar amounts are small, nobody (including the IRS) really cares. If you start making or losing a lot of money, you'll want to get a good tax person lined up who can help you decide how to characterize these items of income and expens, how to put them on your return, and how to defend the return on audit if necessary." There's no reason to keep the California LLC if you don't intend to do business in California.  If you'll have sales in California then you'll need to keep it and file taxes accordingly for those sales.  You can just as easily form a new LLC in Washington state and even keep the same name (if it's available in Washington, that is). Keeping the California LLC just creates paperwork for whatever regulatory filings California will require for no purpose at all.   As for your question about it looking suspicious that you just set up an LLC and then are shutting it down, nobody's going to care, to be honest.  As with your situation, plans change, so it isn't really all that unusual.  If you're concerned the government will say something, don't. From Schwab -  What are the eligibility requirements for a business to establish a SEP-IRA? Almost any type of business is eligible to establish a SEP-IRA, from self-employed individuals to multi-person corporations (including sole proprietors, partnerships, S and C corporations, and limited liability companies [LLCs]), tax-exempt organizations, and government agencies. What are the contribution limits? You may contribute up to 25% of compensation (20% if you’re self-employed3) or $49,000 for 2011 and $50,000 for 2012, whichever is less. If we set the PC aside, you and the son have an LLC renting office space, this addresses the ability of the LLC to offer the retirement account. "I'm not an accountant, and you should probably get the advice of one to be sure about what to do.  However, if the business is a sole-proprietorship, you'd complete a Schedule C for the business, and you'd end up with a loss at the end.  If the investment you made in the business is considered to be entirely or partially ""at risk"" per the IRS definition, you'd get to claim all or part of the loss as a reduction in your income.  If the business was an LLC, then you're beyond my already limited knowledge. There may be some other considerations based on whether this was really a business vs a hobby, and whether or not you're going to try to continue with the business, or whether you've shut it down.  I'm not sure about those parts, but they'd be worth exploring with an accountant." "I would suggest you pay quarterly. Or, if you prefer, do the extra withholding. Don't wait until the end of the year. My experience is that of having a day job with freelance work on the side. I've spent a few years just freelancing, and I paid quarterly as requested to avoid the penalties. Now that I have a good day job again, my freelancing is just a small part of my income, and so I end up with a net return and no longer have to pay quarterly. You shouldn't wait until the end of the year to pay. This is assuming your wife is bringing in a decent income. The only scenario where you would want to wait is if her income is only a small amount (such as my wife's plans for an Etsy store). To the IRS, it doesn't really make a difference whether you withhold extra or pay quarterly. Of those two choices, my preference is to pay quarterly - it's easy to set up calendar reminders on the quarterly payment dates, which are always the same. I did the same as bstpierre when estimating my payments: just take last year's tax (for the business) and divide by 4 (adjusting for any obvious situational differences). That's usually close enough. Paying quarterly instead of via withholding means you get to hold on to your money (on average) for 6 weeks longer. Granted, that doesn't mean much with today's interest rates, but it's something. You may prefer the simpler accounting for withholding, though - you can ""set and forget""." I think you're making a mistake. If you still want to make this mistake (I'll explain later why I think its a mistake), the resources for you are: IRS.GOV - The IRS official web site, that has all the up-to-date forms and instructions for them, guiding publications and the relevant rules. You might get a bit overwhelmed through. Software programs - TurboTax (Home & Business for a sole propriator or single member LLC, Business for more complicated business), or H&R Block Business (only one version that should cover all) are for your guidance. They provide tips and interactive guidance in filling in all the raw data, and produce all the forms filled for you according to the raw data you entered. I personally prefer TurboTax, I think its interface is nicer and the workflow is more intuitive, but that's my personal preference. I wrote about it in my blog last year. Both also include plug-ins for the state taxes (If I remember correctly, for both the first state is included in the price, if you need more than 1 state - there's extra $30-$40 per state). Your state tax authority web site (Minnesota Department of Revenue in your case). Both Intuit and H&R Block have on-line forums where people answer each others questions while using the software to prepare the taxes, you might find useful information there. As always, Google is your friend. Now, why I think this is a mistake. Mistakes that you make - will be your responsibility. If you use the software - they'll cover the calculation mistakes. But if you write income in a wrong specification or take a wrong deduction that you shouldn't have taken - it will be on your head and you're the one to pay the fines and penalties for that. Missed deductions and credits - CPA's (should) know about all the latest deductions and credits that you or your business might be entitled to. They also (should) know which one got canceled and you shouldn't be continuing taking them if you had before. Expenses - there are plenty of rules of what can be written off as an expense and how. Some things should be written off this year, others over several years, for some depreciation formula should be used, etc etc. Tax programs might help you with that, but again - mistakes are your responsibility. Especially for the first time and for the newly formed business, I think you should use a (good!) CPA. The CPA should take responsibility over your filing. The CPA should provide guarantee that based on the documents you provided, he filled all the necessary forms correctly, and will absorb all the fees and penalties if there's an audit and mistakes were found not because you withheld information from your CPA, but because the CPA made a mistake. That costs money, and that's why the CPA's are more expensive than using a program or preparing yourself. But, the risk is much higher, especially for a new business. And after all - its a business expense. "Actually, calculating taxes isn't that difficult.  You will pay a percentage of your gross sales to state and local sales tax, and as a single-owner LLC your profits (after sales taxes) should pass through to your individual tax tax return (according to this IRS article. They are not cumulative since they have different bases (gross sales versus net profit). That said, when determining if your future business is profitable, you need to ask ""what aspects of the business can I control""? Can you control how much each item sells for? Increasing your prices will increase your gross margins, which should be higher than your fixed and variable costs.  If your margins do not exceed your costs, then you will note be profitable. Note that as a vendor you are at a slight disadvantage to a retailer, since tax has to be baked in to your prices.  A retailer can advertise the pre-tax price, and pass-through sales tax at the point of sale.  However, people expect to pay more at a vending machine, so the disadvantage is very small (you aren't directly competing with retailers anyways)." Your tax return will be due on April 18th of 2017 for the amounts made in 2016. Based on the figures that you have provided, assuming you are 18, and assuming you are a single taxpayer your total tax will be around $2600.00 ($2611.25 to be exact, without additional credits or deductions to AGI accounted for). The $1,234 in fed. inc. tax that you have already paid is considered to be a prepaid by the government. If at year-end you have provided more than you have made the government will refund you the excess (federal tax return).