How long should I keep my tax documents, and why?
How long you need to keep tax records will depend on jurisdiction. In general, if you discard records in a period of time less than your tax authority recommends, it may create audit problems down the road. ie: if you make a deduction supported by business expense receipts, and you discard those receipts next year, then you won't be able to defend the deduction if your tax authority audits you in 3 years. Generally, how long you keep records would depend on: (a) how much time your tax authority has to audit you; and (b) how long after you file your return you are allowed to make your own amendments. In your case (US-based), the IRS has straight-forward documentation about how long it expects you to keep records: https://www.irs.gov/businesses/small-businesses-self-employed/how-long-should-i-keep-records Period of Limitations that apply to income tax returns Keep records for 3 years if situations (4), (5), and (6) below do not apply to you. Keep records for 3 years from the date you filed your original return or 2 years from the date you paid the tax, whichever is later, if you file a claim for credit or refund after you file your return. Keep records for 7 years if you file a claim for a loss from worthless securities or bad debt deduction. Keep records for 6 years if you do not report income that you should report, and it is more than 25% of the gross income shown on your return. Keep records indefinitely if you do not file a return. Keep records indefinitely if you file a fraudulent return. Keep employment tax records for at least 4 years after the date that the tax becomes due or is paid, whichever is later. Note that the above are the minimum periods to keep records; for your own purposes you may want to keep them for longer periods than that. For example, you may be in a position to discover that you would like to refile a prior tax return, because you forgot to claim a tax credit that was available to you. If you would have been eligible to refile in that period but no longer have documentation, you are out of luck. Unfortunately, my taxes tend to be complicated This. In and of itself, is a greater reason to keep the documents. The other answer offered a good summary, but keep in mind, if the IRS decides you fraudulently withheld claiming income, they can go back 7 years.  I bought a rental property in 1987, and sold it in 2016. In that case, keeping the returns seemed the right thing to do to have the paper trail for basis, else I could claim anything, and hope for the best.  I have all my tax returns since my first tax return, 1980. It's one drawer of a file cabinet. Not too great a burden.
"A few practical thoughts: A practical thing that helps me immensely not to loose important paperwork (such as bank statements, bills, payroll statement, all those statements you need for filing tax return, ...) is: In addition to the folder (Aktenordner) where the statements ultimately need to go I use a Hängeregistratur. There are also standing instead of hanging varieties of the same idea (may be less expensive if you buy them new - I got most of mine used): you have easy-to-add-to folders where you can just throw in e.g. the bank statement when it arrives. This way I give the statement a preliminary scan for anything that is obviously grossly wrong and throw it into the respective folder (Hängetasche). Every once in a while I take care of all my book-keeping, punch the statements, file them in the Aktenordner and enter them into the software. I used to hate and never do the filing when I tried to use Aktenordner only. I recently learned that it is well known that Aktenordner and Schnellhefter are very time consuming if you have paperwork arriving one sheet at a time. I've tried different accounting software (being somewhat on the nerdy side, I use gnucash), including some phone apps.  Personally, I didn't like the phone apps I tried - IMHO it takes too much time to enter things, so I tend to forget it. I'm much better at asking for a sales receipt (Kassenzettel) everywhere and sticking them into a calendar at home (I also note cash payments for which I don't have a receipt as far as I recall them - the forgotten ones = difference ends up in category ""hobby"" as they are mostly the beer or coke after sports). I was also to impatient for the cloud/online solutions I tried (I use one for business, as there the archiving is guaranteed to be according to the legal requirements - but it really takes far more time than entering the records in gnucash)." For tax purposes you will need to file as an employee (T4 slips and tax withheld automatically), but also as an entrepreneur. I had the same situation myself last year. Employee and self-employed is a publication from Revenue Canada that will help you. You need to fill out the statement of business activity form and keep detailed records of all your deductible expenses. Make photocopies and keep them 7 years. May I suggest you take an accountant to file your income tax form. More expensive but makes you less susceptible to receive Revenue Canada inspectors for a check-in.  If you can read french, you can use this simple spreadsheet for your expenses. Your accountant will be happy. Just like with IRS refunds issued in errors, after 3 years it's legally yours, they can't go after you anymore. So savings account until then or just mail them a check if that is what your conscious is saying. The I-9 form is required because you are working. It is kept by the employer as proof that you have the proper documents to work. If the government was to inspect their records they can be fined if they don't have those document, in fact they have to keep them for several years after your employment is done. A w-4 form is a federal tax form. There also was probably a state version of the form.  When you completed the w-4 it is used by your employer to determine how much in taxes need to be withheld. Employers don't know your tax situation. Even though you are on work study, you still could have made enough money over the summer to pay taxes. But if this is your only job, and you will not make enough money to have to pay taxes, you can fill out the form as exempt. That means that last year you didn't make enough money to have to pay taxes, and you don't expect to make enough to have to pay taxes this year. If you are exempt, no federal income tax will be withheld. They might still withhold for social security and medicare. The state w-4 can also be used to be exempt from state taxes. If they withhold any income taxes you have to file one of the 1040 tax forms to get that income tax money back. You will have to do so for the state income tax withholding.  A note about social security and medicare. If you have an on campus job, at the campus you attend, during the school year; they don't withhold money for social security and medicare. That law applies to students on work study jobs, and on non-work-study jobs. for single dependents the federal threshold where you must file is: > You must file a return if any of the following apply. Your gross income was more than the larger of— a. $1,000, or b. Your earned income (up to $5,850) plus $350. If you were NRI during the period you earned the income, its tax free in India and you can bring it back anytime within 7 years. There is a limit on total amount but its quite huge. If you were not an NRI during that period [when you earned in US] then whatever you have earned is taxable even in India, it does not matter whether you keep the funds in US or bring it back to India. You get the benefit of Double Tax and can deduct the tax already paid. I've found it's just simpler to keep all of my receipts rather than debate which receipts to keep and which to throw away. I shove all my receipts from August in an envelope labeled August.   Then, next year (12 months later) I shred the envelope.    That way, if I see a bank error, need to find a receipt to do a return or warranty work, etc. I have all of them available for a year.   Doing 1 envelope per month means I only have 12 envelopes at any time and I can shred an entire envelope without bothering to sort through receipts inside the envelope. I don't like keeping my tax information online.  Personally, I buy TaxCut from Amazon for $25-30. I store my info securely on resources under my control. Call me a luddite or a weirdo, but I also file using paper, because I don't see the advantage of paying for the privilege of saving the government time and money. Maybe it's just because of the foundation date. If I start a company on August 1st, I would like its FY starts on that date too, in order to track my first whole year. Would be quite useless to finish my year on December, after just five months. I want to have data of my first year after a twelve months activity. "There are probably many correct answers to this question, but for most people, the main reason is qualified dividends. To be a qualified dividend (and therefore eligible for lower tax rates), the dividend-paying stock or fund must be held for ""more than 60 days during the 121-day period that begins 60 days before the ex-dividend date"". Since many stocks and funds pay out dividends at the end of the year, that means it takes until mid- to late February to determine if you held them, and therefore made the dividend qualified. Brokerages don't want to send out 1099s in January and then possibly have to send out revised versions if you decide to sell something that paid a dividend in December that otherwise would have been qualified." I got notice from Charles Schwab that the forms weren't being mailed out until the middle of February because, for some reason, the forms were likely to change and rather than mail them out twice, they mailed them out once. Perhaps some state tax laws took effect (such as two Oregon bills regarding tax rates for higher incomes) and they waited on that. While I haven't gotten my forms mailed to me yet, I did go online and get the electronic copies that allowed me to finish my taxes already. "I would advise against ""pencil and paper"" approach for the following reasons: You should e-file instead of paper filing. Although the IRS provides an option of ""Fillable Forms"", there's no additional benefit there. Software ensures correctness of the calculations. It is easy to make math errors, lookup the wrong table It is easy to forget to fill a line or to click a checkbox (one particular checkbox on Schedule B cost many people thousands of dollars). Software ask you questions in a ""interview"" manner, and makes it harder to miss. Software can provide soft copies that you can retrieve later or reuse for amendments and carry-overs to the next year, making the task next time easier and quicker. You may not always know about all the available deductions and credits. Instead of researching the tax changes every year, just flow with the interview process of the software, and they'll suggest what may be available for you (lifetime learners credit? Who knows). Software provides some kind of liability protection (for example, if there's something wrong because the software had a bug - you can have them fix it for you and pay your penalties, if any). It's free. So why not use it? As to professional help later in life - depending on your needs. I'm fully capable of filling my own tax returns, for example, but I prefer to have a professional do it since I'm not always aware about all the intricacies of taxation of my transactions and prefer to have a professional counsel (who also provides some liability coverage if she counsels me wrong...). Some things may become very complex and many people are not aware of that (I've shared the things I learned here on this forum, but there are many things I'm not aware of and the tax professional should know)." If you live in a country that taxes interest, and if this is a significant amount of money in a high interest account then the tax forms will serve as a reminder. Even though the advice is to forget about the money, so that you don't dip into it for trivial things; you do need to look at it every so often to make sure it is still in a high interest account. The info about the account also needs to be kept in a place where somebody else can track it down if a spouse or dependent has to use the money in the emergency. "Rob - I'm sorry your first visit here has been unpleasant.  What you are asking for is beyond the capability of most software. If you look at Fairmark.com, you find the standard deduction for married filing joint is $12,200 in 2012, and $12,400 in 2013. I offer this anecdote to share a 'deduction' story - The first year I did my MIL's taxes, I had to explain that she didn't   have enough deductions to itemize. Every year since, she hands me a   file full of paper substantiating medical deductions that don't exceed   7.5% of her income. In turn, I give her two folders back, one with the 5 or so documents I needed, and the rest labeled ""trash"". Fewer than 30% of filers itemize. And a good portion of those that do, have no question that's the right thing to do. e.g. my property tax is more than the $12K, so anything else I have that's a deduction adds right to the number.  It's really just those people who are at the edge that are likely frustrated. I wrote an article regarding Standard Deduction vs Itemizing, in which I describe a method of pulling in one's deductible expenses into Odd years, reducing the number in Even years, to allow a bi-annual itemization. If this is your situation, you'll find the concept interesting.  You also ask about filing status. Think on this for a minute. After pulling in our W2s (TurboTax imports the data right from ADP), I do the same for our stock info. The stock info, and all Schedule A deductions aren't assigned a name. So any effort to split them in search of savings by using Married Filing Separate, would first require splitting these up. TurboTax has a 'what-if' worksheet for this function, but when the 'marriage penalty' was lifted years ago, the change in status had no value. Items that phaseout over certain income levels are often lost to the separate filer anyway. When I got married, I found my real estate losses each year could not be taken, they accumulated until I either sold, or until our income dropped when the Mrs retired.  So, while is respect your desire for these magic dials within the software, I think it's fair to say they would provide little value to most people.  If this thread stays open, I'd be curious if anyone can cite an example where filing separately actually benefits the couple." 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... Considering your question, I have been in the market for a house to buy. There is a house that I   like and I wanted to know if I could afford it. You state your Assets: Awesome! Current Income:  Great job putting $1000/month into your 401k!  That is $12,000/year saved for retirement. Excellent! Current expenses: Why do you want to buy a house for more than 4x your gross income, and 3x median house price (U.S.)?  Are you planning on living in the house for at least 5-7 years?  There is a risk that interest rates will rise, and that will affect your ability to sell the house. Expected expenses: Adding your other essentials, You are considering increasing your expenses by $1000-1200/month. Looking at the amounts you quoted for direct housing expenses, you will have committed $2600/month to a mortgage payment.  Adding your other estimated essentials, you will spend over $3700/month (leaving $2200/month for everything else). You may have higher utilities for a house than an apartment, you are doing well with your food budget, and your cellphone is lower than many.  You anticipate $650/month ($7800/year) tax savings (be careful, congress is looking for ways to increase tax revenue). You want to keep your essential expenses under 50% (much more than 50% is difficult, and I am trying to get to 40%).  You may live in an area where housing costs are an out-sized expense.  But an option would be to save more, and a larger down payment could lower the monthly expenses below that 50% mark.