Are tax deductions voluntary?
"I did a little research and found this article from 2006 by a Villanova law professor, titled ""No Thanks, Uncle Sam, You Can Keep Your Tax Break"".  The final paragraph of the article says: Under these circumstances, it is reasonable to conclude that a taxpayer is not required to claim a allowable deduction unless a statutory provision so requires, or a binding judicial precedent so specifies. It would be unwise, of course, to forego a deduction that the IRS considers mandatory such as those claimed by self-employed individuals with respect to their self-employment,    whether for purposes of the self-employment tax or the earned income tax credit. Until the statute is changed or some other binding authority is issued, there is no reason taxpayers who wish to forego deductions, such as the dependency exemption deduction, should hesitate in doing so. (The self-employment tax issues in the quote cited by CQM are explicitly discussed in the article as one of a few special kinds of deduction which are mandatory.) This is not a binding statement: it's not law or even official IRS policy.  You could never use it as a defense in the event that this professor turned out to be wrong and the IRS decided to go after you anyway.  However, it is a clear statement from a credible, qualified source." "There are many people who have deductions far above the standard deduction, but still don't itemize. That's their option even though it comes at a cost. It may be foolish, but it's not illegal.  If @littleadv citation is correct, the 'under penalty of perjury' type issue, what of those filers who file a Schedule A but purposely leave off their donations? I've seen many people discuss charity, and write that they do not want to benefit in any way from their donation, yet, still Schedule A their mortgage and property tax. Their returns are therefore fraudulent.  I am curious to find a situation in which the taxpayer benefits from such a purposeful oversight, or, better still, a cited case where they were charged with doing so. I've offered advice on filings return that wasn't ""truthful"". When you own a stock and cannot find cost basis, there are times that you might realize the basis is so low that just entering zero will cost you less than $100 in extra tax. You are not truthful, of course, but this kind of false statement isn't going to lead to any issue. If it gets noticed within an audit, no agent is going to give it more than a moment of time and perhaps suggest, ""you didn't even know the year it was bought?"" but there would be no consequence.  My answer is for personal returns, I'm sure for business, accuracy to the dollar is actually important." "What kind of ""deductions"" are you talking about? Many deductions, like the standard/itemized deductions, come after the AGI, and do not affect the AGI, so I don't see how this would make any difference. Maybe you are talking about deductions that come before the AGI? If you want to increase your AGI legitimately, here's a way: Every year, itemize deductions on your federal return, and over-withhold your state income tax (assuming your state has income tax) by a lot, and/or make voluntary extra payments to your state income tax. As a result, you will get a huge refund on your state taxes the following year. Then you will need to include this refund as income on line 10 of the federal return that year, which will be included in the AGI. (Of course, you will also be able to deduct a lot of state income tax paid every year in the federal itemized deductions, but those come after the AGI.)" "Legally: gods know. I would strongly recommend asking the Law asre of Stack Exchange to advise on that. Practically: What's the worst that happens? They audit, you say ""Yeah, I could probably have claimed these deductions but I didn't want to; is that a problem?"", they decide and either nothing happens or they issue you the unwanted refunnd. They aren't going to fine you for overpaying. Unless this would expose something criminal -- or you're a public figure and it would be embarassing -- this strikes me as falling firmly within the bounds of ""no harm, no foul""."
The IRS Guidance pertaining to the subject.  In general the best I can say is your business expense may be deductible.  But it depends on the circumstances and what it is you want to deduct. Travel Taxpayers who travel away from home on business may deduct related   expenses, including the cost of reaching their destination, the cost   of lodging and meals and other ordinary and necessary expenses.   Taxpayers are considered “traveling away from home” if their duties   require them to be away from home substantially longer than an   ordinary day’s work and they need to sleep or rest to meet the demands   of their work. The actual cost of meals and incidental expenses may be   deducted or the taxpayer may use a standard meal allowance and reduced   record keeping requirements. Regardless of the method used, meal   deductions are generally limited to 50 percent as stated earlier.    Only actual costs for lodging may be claimed as an expense and   receipts must be kept for documentation. Expenses must be reasonable   and appropriate; deductions for extravagant expenses are not   allowable. More information is available in Publication 463, Travel,   Entertainment, Gift, and Car Expenses. Entertainment Expenses for entertaining clients, customers or employees may be   deducted if they are both ordinary and necessary and meet one of the   following tests: Directly-related test: The main purpose of the entertainment activity is the conduct of business, business was actually conducted   during the activity and the taxpayer had more than a general   expectation of getting income or some other specific business benefit   at some future time.   Associated test: The entertainment was associated with the active conduct of the taxpayer’s trade or business and occurred directly   before or after a substantial business discussion. Publication 463 provides more extensive explanation of these tests as   well as other limitations and requirements for deducting entertainment   expenses. Gifts Taxpayers may deduct some or all of the cost of gifts given in the   course of their trade or business. In general, the deduction is   limited to $25 for gifts given directly or indirectly to any one   person during the tax year. More discussion of the rules and   limitations can be found in Publication 463. If your LLC reimburses you for expenses outside of this guidance it should be treated as Income for tax purposes. Edit for Meal Expenses: Amount of standard meal allowance.   The standard meal allowance is   the federal M&IE rate. For travel in 2010, the rate for most small   localities in the United States is $46 a day. Source IRS P463 Alternately you could reimburse at a per diem rate You already received a tax deduction, more or less, as you didn't pay tax on this income. Beyond that, no; the money is lost if you don't spend it.  See this explanation for example, among many others; it's specific to FSA, but they work generally the same way. To go into a bit more detail, read the IRS publication on the subject; basically, what's happening here is that you're receiving a fringe benefit, rather than salary.  So yes, you agreed to voluntarily reduce your salary by $255 or whatever per month in exchange for funds in this account. As such, they're nontaxable, which both your employer and you find helpful; but the downside is it's not really your money - it's a fringe benefit.  Nice that it's tax free, and dissimilar to a medical or dependent care FSA, it doesn't have an expiration date; but it does go away when you leave your employer, and you don't get it back.  It's money you never had. If your deductions are higher than the standard deduction, you will be able to subtract property taxes from your income. In your example, that means that taxes are computed based on $95,000. In 2011, the standard deduction varies between $5,800 (single filer) and $11,600 (married filing jointly). Tax credits are subtracted from your tax obligation. The most common tax credit for most people is student loan interest. If you pay $500 in student loan interest, that sum is subtracted from your tax bill. "Depending on what your other deductions are and the amount you are wanting to donate, you can save some money by ""batching"" deductions into every other year. For example, if you are single in 2015, the standard deduction is $6,300. This means the first $6,300 in deductions you have basically don't ""matter"" because the standard deduction is larger. You only ""count"" itemized deductions greater than $6,300. Let's imagine you are donating $10k in 2015 and 2016 and have no other itemized deductions. If you donate in both years, you basically get a net deduction of ($10,000 - $6,300) * 2 = $7,400 over the standard deduction. However, if you donate $10k in 2015 and the next $10k on Dec31, 2015, then you now have donated $20k in 2015 and $0k in 2016. This affects your taxes because you now get ($20,000 - $6,300) = $13,700 in ""bonus"" deductions. You still get the full $6,300 standard deduction in 2016 as well. This can be a significant impact on your taxes (especially if you are married as the married deduction is double the single or have minimal other itemizable deductions).." &gt;According to the IRS, penalties and fines are only non-deductible when they are paid for actual violations of laws/regulations.  That's not quite correct. Section 162(f) says [bolding is mine]:   &gt;No deduction shall be allowed under subsection (a) for any fine or similar penalty **paid to a government** for the violation of any law.  That means they can only claim a deduction on the portion of the fine that isn't paid to the US government.   I'm doing a little research to see if I can find out what the dealy-o is. Yes. W4 determines how much your employer will withhold from your wages. Leaving everything at default would mean that your salary is your only taxable income, and you only take default deductions. Your employee will calculate your tax withholding based on that. But, if your salary is >200k, I assume that you have other income (investment/capital gains, interest on your bank account), which you will have to pay taxes on. You're probably going to have some deductible expenses (business/partnership expenses, mortgage interest, donations, college funds etc) as well. So it is very likely, unless you're really not smart about money, that you have more to do with your taxes than just the employers' withholding. "This seems to depend on what kind of corporation you have set up. If you're set up as a sole proprietor, then the Solo 401k contributions, whether employee or employer, will be deducted from your gross income.  Thus they don't reduce it. If you're set up as an S-Corp, then the employer contributions, similar to large employer contributions, will be deducted from wages, and won't show up in Box 1 on your W-2, so they would reduce your gross income.  (Note, employee contributions also would go away from Box 1, but would still be in Box 3 and 5 for FICA/payroll tax purposes). This is nicely discussed in detail here. The IRS page that discusses this in more (harder to understand) detail is here. Separately, I think a discussion of ""Gross Income"" is merited, as it has a special definition for sole proprietorships. The IRS defines it in publication 501 as: Gross income.    Gross income is all income you receive in the form of money, goods, property, and services that is not exempt from tax. If you are married and live with your spouse in a community property state, half of any income defined by state law as community income may be considered yours. For a list of community property states, see Community property states under Married Filing Separately, later. Self-employed persons.    If you are self-employed in a business that provides services (where products are not a factor), your gross income from that business is the gross receipts. If you are self-employed in a business involving manufacturing, merchandising, or mining, your gross income from that business is the total sales minus the cost of goods sold. In either case, you must add any income from investments and from incidental or outside operations or sources. So I think that regardless of 401(k) contributions, your gross income is your gross receipts (if you're a contractor, it's probably the total listed on your 1099(s))." To expand a little on what littleadv said, you can only deduct what something cost you. Even if you had done volunteer work for a charity as a sole prop you could only deduct your actual costs. If you paid an employee to do charity work or to learn something related to the business that would be deductible as a normal business expense.  Some common sense would show that if you could deduct something that didn't cost you anything (your time) you could deduct away all of your income and avoid paying taxes altogether. Back to your more nuanced question could 2 businesses you own bill each other for services? Yes, but you will still have to pay taxes for money earned under each of them. You will also need to be careful that the IRS does not construe the transactions as being done solely to lower your tax bill. "Disclaimer: This should go without saying, but this answer is definitely an opinion. (I'm pretty sure my current accountant would agree with this answer, and I'm also pretty sure that one of my past accountants would disagree.) When I started my own small business over 10 years ago I asked this very same question for pretty much every purchase I made that would be used by both the business and me personally. I was young(er) and naive then and I just assumed everything was deductible until my accountant could prove otherwise. At some point you need to come up with some rules of thumb to help make sense of it, or else you'll drive yourself and your accountant bonkers. Here is one of the rules I like to use in this scenario: If you never would have made the purchase for personal use, and if you   must purchase it for business use, and if using   it for personal use does not increase the expense to the business, it   can be fully deducted by the business even if you sometimes use it personally too. Here are some example implementations of this rule: Note about partial expenses: I didn't mention partial deductions above because I don't feel it applies when the criteria of my ""rule of thumb"" is met. Note that the IRS states: Personal versus Business Expenses Generally, you cannot deduct personal, living, or family expenses. However, if you have an expense for something that is used partly for business and partly for personal purposes, divide the total cost between the business and personal parts. You can deduct the business part. At first read that makes it sound like some of my examples above would need to be split into partial calulations, however, I think the key distinction is that you would never have made the purchase for personal use, and that the cost to the business does not increase because of allowing personal use. Partial deductions come into play when you have a shared car, or office, or something where the business cost is increased due to shared use. In general, I try to avoid anything that would be a partial expense, though I do allow my business to reimburse me for mileage when I lend it my personal car for business use." You cannot deduct anything. Since you're actually moving, your tax home will move with you. You can only deduct the moving expenses (actual moving - packing, shipping, and hotels while you drive yourself there). The answer is simple. You can generally claim a deduction for an expense if that expense was used to derive an income. Most business expenses are used to derive profits and income, most individual expenses are not. Of course social policy sometimes gets in the way and allows for deductions where they usually wouldn't be allowed. Regarding the interest on a mortgage being deductible whilst the principal isn't, that is because it is the interest which is the annual expense. By the way deductions for mortgage interest in the USA for a house you live in is only allowed due to social policy, as there is no income (rent) being produced here, unlike with an investment property. Prachi - While most non-resident aliens are not allowed to claim the standard deduction here are some exceptions: IRS Law under Article 21: ARTICLE 21 Payments Received by Students and Apprentices This falls under the U.S.A.-India Tax Treaty. Sources: I hope this helps. So, yes, I do believe you would be able to claim the standard deduction, although it's always good to check with a tax adviser. In 2012, the standard deduction is $5950 for a single person.  Let's assume you are very charitable, and by coincidence you donate exactly $5950 to charity.  Everything that falls under itemized deductions would then be deductible.  So, if your property tax is $6000, in your example - Other adjustments come into play, including an exemption of $3850, I am just showing the effect of the property tax.  The bottom line is that deductions come off income, not off your tax bill. The saving from a deduction is $$ x your tax bracket. "If it's work you'd be producing specifically for this organization, that would not be deductable. Per Publication 526, Charitable Deductions, ""You can't deduct the value of your time or services, including: … The value of income lost while you work as an unpaid volunteer for a qualified organization."" On the other hand, if you were say an author of a published book or something (not specifically written for this organization), you could donate a copy of the book and probably deduct its fair market value (or perhaps only your basis, if it's your business's inventory)." "It's not possible to determine whether you can ""expect a refund"" or whether you are claiming the right number of exemptions from the information given.   If your wife were not working and you did not do independent contracting, then the answer would be much simpler.  However, in this case, we must also factor in how much your contracting brings in (since you must pay income tax on that, as well as Medicare and, probably, Social Security), whether you are filing jointly or separately, and your wife's income from her business.   There are also other factors such as whether you'll be claiming certain child care expenses, and certain tax credits which may phase out depending on your income.   If you can accurately estimate your total household income for the year, and separate that into income from wages, contracting, and your wife's business, as well as your expenses for things like state and local income and property taxes, then you can make a very reasonable estimate about your total tax burden (including the self-employment taxes on your non-wage income) and then determine whether you are having enough tax withheld from your paycheck.  Some people may find that they should have additional tax withheld to compensate for these expenses (see IRS W-4 Line #6)."