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."
"Hearing somewhere is a level or two worse than ""my friend told me.""  You need to do some planning to forecast your full year income and tax bill. In general, you should be filing a quarterly form and tax payment. You'll still reconcile the year with an April filing, but if you are looking to save up to pay a huge bill next year, you are looking at the potential of a penalty for under-withholding.  The instructions and payment coupons are available at the IRS site.  At this point I'm required to offer the following advice - If you are making enough money that this even concerns you, you should consider starting to save for the future. A Solo-401(k) or IRA, or both. Read more on these two accounts and ask separate questions, if you'd like." "Every year, you save your receipts, track your expenses and - when April comes around - pay your taxes. But what if you know of someone who isn't as honest as you are? Someone who skims on their income or misreports information in order to be placed in a lower bracket.  The Internal Revenue Service (IRS) estimates that Americans underpay their [taxes](http://www.investopedia.com/articles/taxes/09/reporting-tax-cheats.asp) by about $345 billion every year, according to Barron's, the popular financial news website and magazine. In fiscal 2009, the IRS collected $48.9 billion in enforcement revenue. This process required the employment of thousands of revenue officers, agents and special agents. Unfortunately, this type of enforcement happens every year and often spans to multiple previous years. In the end, there is still a large amount of tax money that goes unpaid.  There's definitely a gap between the tax evader and the IRS. Evaders are usually exposed due to a slip-up on their part or a tip from a bystander. If you'd like to help close that gap, you can. But why should you, and how is it done?  **Why Help the IRS?**  Nobody likes paying more than their fair share of taxes in order to compensate for others who intentionally evade theirs. Why shouldn't tax evaders give up a portion of their incomes to provide things that benefit the general good, like roads and sewers, when you do? Reporting a tax cheat is like reporting a shoplifter - you're just asking them to pay for something they're trying to unfairly get for free.  **Gather the Evidence**  The IRS is not likely to pursue someone without good reason. If the time and resources are going to be spent, the odds need to be good that the efforts will result in a payoff. Besides determining who, what, where, when and why the person evaded his or her taxes, the IRS will need specific information (type of violation, availability of books or records). Having a hunch without supporting details just isn't good enough.  Also ensure that the evasion is financially significant enough. For example, stating that your neighbor failed to report a $50 babysitting earning is not going to interest the IRS. On the other hand, if you work for a large business that you suspect is underreporting its income, the IRS will likely be very interested.  **Blowing the Whistle on a Tax Cheat**  The IRS may pay awards in exchange for valuable information that leads to the collection of ""taxes, penalties, interest or other amounts from the noncompliant taxpayer,"" according to the agency's website. There are various types of awards granted, depending on the evader's income level and classification (business or individual). The IRS likely chooses to focus its efforts on these larger cases because they have a higher payoff. It has also been suggested that higher income individuals have been found to cheat more frequently and for higher sums of money, mostly because they tend to earn more self-reported income.  **Cover Your Assets**  Fabricating a complaint in order to spite an undesirable neighbor who does, in fact, pay taxes is not a good way to get revenge. When you sign off on the IRS form providing your report, you are stating, ""I declare under penalty of perjury that I have examined this application, my accompanying statement and supporting documentation, and aver that such application is true, correct, and complete to the best of my knowledge."" You don't want to be found guilty of perjury.  **Keep It Legal**  Breaking into the CFO's office at work to get evidence to support your claim is not a good idea. The IRS doesn't want you to break the law to help find a tax cheat. However, if you are the bookkeeper for a company that is cheating on its taxes and part of your job involves working with documents that prove the company is cheating, that paperwork would be acceptable to submit to the IRS.  While the IRS wants to maintain your privacy, if the case against the person you report ends up going to trial, you could be asked to be a witness. If you're comfortable with that possibility, go ahead and put your name on the report.  **Reasons Not to Report a Cheat**  If your ""information"" is really just speculation, it's probably best to keep it to yourself. As explained earlier in this article, the IRS does not have the resources to pursue your hunch.  If you, yourself, are a tax cheat, it might be best to stay in the clear. There's nothing that says that people who submit claims of cheating by others will have their own tax returns examined more carefully. Still, it stands to reason that you wouldn't want to do anything to call IRS attention to yourself if you're not in compliance with its rules.  If you helped plan or initiate the cheating of the person you are reporting, it might be smart to think twice. If you decide to report a crime in which you took part, be prepared for the consequences, and definitely don't expect to receive a reward.  As with many government processes, there's a lot of red tape to cut through. Therefore, if you're looking for fast cash, you might want to look elsewhere. It can take several years to complete an investigation of tax evasion – and if there is no conviction, there is no award. Not only does the IRS have to determine guilt, it has to actually collect the amount owed before paying you. What's more, if the IRS determines that your tip did not ""substantially contributed to the Service's detection and recovery of tax,"" you will not receive an award.  It's also important to note that, under some circumstances, like attorney-client confidentiality, you may not be able to report tax cheating.  **Other Considerations**  If you earn a whistle blower award, it will need to be reported when you file your taxes. If you're blowing the whistle on your employer and you're not planning to change jobs, an IRS audit could make your work situation extremely unpleasant. This isn't to say that you shouldn't report someone who is cheating, but it is something to consider.  **What's Next**  If you decide to report the person or business you suspect of cheating, use IRS form3949-A. This form asks for basic information on the tax evader you are reporting, the types of violations you believe to be committed, the details of the violation and how you learned about it. If you do not want to fill out this form, you can also simply write the IRS a letter. If you are providing your name and want the possibility of receiving an award, also submit IRS Form 211 which is an application for the award.  **The Bottom Line**  Underpayment of federal income taxes (and, subsequently, state income taxes) is a serious problem. The IRS encourages people to submit tips by allowing anonymous submissions and offering generous rewards for informants who are willing to identify themselves. If you can substantiate your claims and are willing to accept the potential consequences of squealing, reporting a tax cheat can be lucrative not only for the government, but also for you.  **Take Control of Your Money**   Whether you’re buying a home, consolidating debt or Planning a Yearly Budget, Investopedia has the guide to overhauling your personal spending, saving and investing. [Click here](http://www.investopedia.com/accounts/signupnewsletter/?list=pf) to start managing your money like the pros." "That $200 extra that your employer withheld may already have been sent on to the IRS. Depending on the size of the employer, withholdings from payroll taxes (plus employer's share of Social Security and Medicare taxes) might be deposited in the US Treasury within days of being withheld. So, asking the employer to reimburse you, ""out of petty cash"" so to speak, might not work at all.  As JoeTaxpayer says, you could ask that $200 less be withheld as income tax from your pay for the next pay period (is your Federal income tax withholding at least $200 per pay period?), and one way of ""forcing"" the employer to withhold less is to file a  new W-4 form with Human Resources/Payroll, increasing the number of  exemptions to more than you are entitled to, and then filing a new W-4 changing your exemptions back to what they are right now once when you have had $200 less withheld. But be careful. Claims for more exemptions than you are entitled to can be problematic, and the IRS might come looking if you suddenly ""discover"" several extra children for whom you are entitled to claim exemptions." This is a lie. He owed back taxes and his lawyers filed a petition to postpone the due date on the back taxes saying he was not liquid, was coming up on a large liquidity event, and the taxes would be paid immoderately after.  So I doubt the IRS is just waiting around so he can look super rich. "I have a related issue, since I have some income which is large enough to matter and hard to predict. Start with a best guess. Check what tax bracket you were in last year and withhold that percentage of the expected non-withheld income. Adjust upward a bit, if desired, to reflect the fact that you're getting paid more at the new job. Adjust again, either up or down, to reflect whether you were over-withheld or under-withheld last year (whether the IRS owed you a refund or you had to send a check with your return). Repeat that process next year after next tax season, when you see how well your guess worked out. (You could try pre-calculating the entire tax return based on your expected income and then divide any underpayment into per-paycheck additional withholding... but I don't think it's worth the effort.) I don't worry about trying to get this exactly correct. I don't stress about lost interest if I've over-withheld a bit, and as long as your withholding was reasonably close and you have the cash float available to send them a check for the rest when it comes due, the IRS generally doesn't grumble if your withholding was a bit low.  (It would be really nice if the IRS paid us interest on over-withholding, to mirror the fact that they charge us interest if we're late in returning our forms. Oh well.) Despite all the stories, the IRS really is fairly reasonable; if you aren't deliberately trying to get away with something, the process is annoying but shouldn't be scary. The one time they mail-audited me, it was several thousand dollars in my favor; I'd forgotten to claim some investment losses, and their computers noticed the error. Though I still say the motto of the next revolution will be ""No taxation without proper instructions!""" The best thing you can do here is work with the IRS to the best of your ability.  You can attempt to call them, attempt to go to one of their local branches in your area, or just hire an accountant to solve the problem.  Just be mentally prepared to write a check.   You could attempt to figure this all our yourself, but then a lot of tax law is open to interpretation.  This is why I would recommend seeking the IRS's help if you DIY.  Once you have addressed the issue to the satisfaction of the IRS agent, this will no longer be a problem.  Provided you have a good attitude (which you express in your question) and are honest, I have found them very easy to work with.  You will be a refreshing change of pace to the actual tax cheats. While I understand that you are not seeking advice on what got you your situation, I would like to offer some encouragement.  Good for you for learning from, and addressing your mistakes.  Doing this will serve you well in the future. I have a very hard time believing you pay 60% of gross. Otherwise, I believe you're right in the way this works: Suppose you make $100k and pay 25% of that in taxes. 100,000 * .25 = 25,000 But if you spend $1,000 pretax, then it's as if you were paid $99,000 99,000 * .25 = $24,750 So the difference is $250.  Which is the same as that $1,000 * .25. Aside from the fact that probably nobody is ever going to come and ask for that proof unless your amounts get five digits (or you're unlucky), if you never before reimbursed yourself, your old tax declarations would clearly show that. You can't prove a negative, so the only potential is that you had reimbursements before, and an audit might ask you to prove that the new ones are not duplicates of those. In this case, if you have other receipts / proof for all those other reimbursements, they are obviously not duplicates. I am not an expert in mattes of amending returns, but from what I heard you are allowed to go back four or five years and amend your returns (we are talking the American IRS here, right?). If they realized all this after that much time, it seems strange. I am wondering if something was left out of the story... You're asking three different questions...  Q1: What's to stop people not reporting income earned in this manner?  A: Nothing. Absolutely nothing. The IRS doesn't have the means to keep track of your cash flow and your reported taxes on the fly.  Q2: How could the IRS possibly keep track of that? A: When you get audited. If it ever did come up that things didn't balance you would end up owing back taxes, with interest and possibly fines.  Q3: Moral obligations aside... why report? A: Since you've dismissed 'doing your duty as a citizen' as a moral obligation, the only other real one is that it's a pain in the butt to get audited and it is expensive if you lie and get caught. If you're under audit - you should get a proper representation. I.e.: EA or CPA licensed in California and experienced with the FTB audit representation. There's a penalty on failure to file form 1099, but it is with the IRS, not the FTB. If I remember correctly, it's something like $50 or $100 per instance. Technically they can disqualify deductions claiming you paid under the table and no taxes were paid on the other side, however I doubt they'd do it in a case of simple omission of filing 1099 forms. Check with your licensed tax adviser. Keep in mind that for the IRS 2011 is now closed, since the 3-year statute of limitations has passed. For California the statute is 4 years, and you're almost at the end of it. However since you're already under audit they may ask you to agree to extend it. You proceed with a proper legal advice. You should not ignore IRS letters. You should have taken your chances in trying to reach a compromise with them, but that ship has likely sailed already. You might want to consider bankruptcy. Ask your parents for a couple of hundreds of dollars to pay for a legal consultation with a lawyer and a CPA and proceed from there. "The short answer is that the IRS knows this is an issue, so they are prepared to deal with the ""discrepancies.""  The filer does not need to something special to call it to their attention.  Keep good records and consistently report according to your accounting processes.   Exactly how the IRS resolves / flags this, I don't know.  Maybe someone else can answer, but you can imagine that if they track you for multiple years they should have some idea of how many dollars are rolling over and whether you might have ""forgotten"" to report something from a few years ago that happened at a year-end break." You should probably talk to a professional tax adviser. This doesn't seem to be a common situation. From the top of my head, without being a lawyer or a tax professional, I think of it like this: The income is for year 200..., and should have been taxed then. You constructively received it then, and not claimed it. You probably had withholding from this salary that should have been reported to you then on W2 (you can get a copy from the IRS). I'd say you're to amend the return for year 200... with the new income, if it wasn't reported then. Although if more than 3 years passed (6, if its 25% or more of your gross income for that year), its beyond statute. However, as I said, I'm not a lawyer and not a professional tax adviser, so you cannot in any way rely on my opinion for anything that would result in not paying any taxes or penalties you should have. You should talk to a licensed tax professional (EA/CPA/Lawyer licensed in your State). "Do you have other income that you are not considering?  Interest and dividends would be an example, but there are all sorts of options.   Also with your witholding is it set up such that your employers have any idea of your tax bracket ultimately based on your combined incomes?  Usually what they do is take out money assuming you will be in the tax bracket of any given paycheck spread out over the course of a year.  For example, for federal I had an option to select (in an online form that fills out my W4 for me) ""married: withold at higher single rate"" and did to try and cover this fact.  Eventually I may end up having to calculate my own witholding to fix a too-low problem like yours."