Do my kids need to file a tax return?
No they do not. From form 1040 instructions, a single, non-blind dependent under age 65 must file if the following are true: You must file a return if any of the following apply.  There is no return required for receipt of a gift. If the gift was stock that they have owned for years there can be one hitch: The basis of the stock doesn't reset when it is gifted. For example if grandparents have owned stock that is currently worth $10,000 today, but they bought it decades ago when it only cost them $1,000; then if the new owner sells it today they will have a gain of $9,000. The clock to determine short term/long term also doesn't reset; which is good. The basis needs to be determined now so that the gain  can be accurately calculated in the future. This information should be stored in a safe place. Gains for dividends are investment income and the rules regarding the kiddie tax need to be followed.
You should talk to a tax professional in your area.  It seems like you should start filing your returns.  In the US there are certain income thresholds that need to be attained before a return is required, though it's often thought of as best practice to file anyway.  Also in the US there are programs designed to encourage delinquent filers to begin filing again, which may include penalty/fee reduction for voluntarily filing.  Somehow I suspect Canada has similar programs. If you stand to inherit a sizable amount of money it seems that you should have a history of tax returns in order to minimize the number of questions that are asked should the money come your way. I'd talk to a tax person before consulting an attorney.  From the tone of your question the Canadian tax authority hasn't initiated anything against you.  You just want to understand the best course of action regarding your tax situation. Depends whom the 1099 was issued to. If it was issued to your corporation - then its your corporation's income, not yours. Why would it go to your tax return? Your corporation and you are two separate legal entities. You will have to file the 1120S, whether you have corporate income or not, it has to be filed each year. So why make a mess of your reporting and not just report the corporation income on its return and your personal income on your own return? If you no longer use the corporation and all the 1099's are issued to you personally, then just dissolve it so that you won't have to file an empty 1120S every year and pay additional fees for maintaining it. "Does her dad still have the records from those tax years? If so, I would suggest using those as a basis and if they're complete, just filing them directly. If we're talking about software recommendations, I would suggest GenuTax as it allows for completing returns all the way back to 2003 without buying separate versions. Alternatively, there are some no-cost options. See the Wikipedia entry Comparison of Canadian-tax preparation software for personal use. Look both at the ""Price"" column and at the ""Freebies"" column. You should start at 2006 and move forward so you can keep track of carry-forward amounts. I'm assuming your girlfriend had no balance owing from those years as she was a student so there's no penalty to worry about." No, you probably do not need to file a tax return if you received no income, and if you meet a number of other criteria. The below is copied and pasted, slightly edited, from the CRA: You must file a return for 2014 if any of the following situations   apply: You have to pay tax for 2014. We sent you a request to file a return. You and your spouse or common-law partner elected to split pension   income for 2014. See lines 115, 116, 129, and 210. You received working income tax benefit (WITB) advance payments in   2014. You disposed of capital property in 2014 (for example, if you sold   real estate or shares) or you realized a taxable capital gain (for   example, if a mutual fund or trust attributed amounts to you, or you   are reporting a capital gains reserve you claimed on your 2013   return). You have to repay any of your old age security or employment insurance   benefits. See line 235. You have not repaid all amounts withdrawn from your registered   retirement savings plan (RRSP) under the Home Buyers’ Plan or the   Lifelong Learning Plan. For more information, go to Home Buyers' Plan   (HBP) or see Guide RC4112, Lifelong Learning Plan (LLP) or You have to   contribute to the Canada Pension Plan (CPP). This can apply if, for   2014, the total of your net self-employment income and pensionable   employment income is more than $3,500. See line 222. You are paying employment insurance premiums on self-employment and   other eligible earnings. See lines 317 and 430. In general, you will want to file a tax return even if none of the above applies. You could, for example, claim a GST/HST credit even with no income. Now, if you receive any income at all, you are going to have to pay taxes, which means you are obligated to file a tax return. If sufficient taxes were deducted from your paycheque, you are still obligated to file a tax return. However, you will not have to pay penalties if you file late, even if you file very late, at least not until the CRA sends you a request to file. But be aware, you won't likely be able to tell if you owe the CRA money until you do your taxes, and if you do end up owing, there are substantial penalties for filing late. In general, I'd strongly advise filing your tax return in almost all circumstances. Since you are living in India and earning income not from salary, you must file your tax return under ITR4(Profits or Gains of Business or Profession). You can do it online on IncomeTax India eFiling website, step by step guide available here. This sort of involves personal finance, and sort of not. But it's an interesting question, so let's call it on topic? Short answer: yes. Long answer: it depends who's asking. If you're trying to qualify for in-state tuition, for example, you need to have been in state for a certain amount of time. For tax purposes, the first year you move to a new state you need to file part-time resident returns in your previous and current state of residency Residents pay tax on all of the income they receive during the calendar year from all sources, so you'll at least need to file and pay New York state income taxes on this money regardless. I can't answer whether you'll need to file and pay Colorado state income tax on this money as well. Generally speaking, you need to file a return for each state in which you live, receive income, or have business interests. If you are required to file a Colorado state income tax return, however, you can claim a credit for taxes paid to another state on your New York state income tax return using form IT-112-R (see the form and instructions). "Worksheets/ Documentation: (From my experience filing my business deductions through several tax preparers.) Keep all your calculations, but only submit the calculations and worksheets requested by the tax form. Most travel deductions are just a category total. If the IRS wants more info, it will ask for it. Information from the book Home Business Tax Deductions (from Nolo) (2012): Traveling with kids: In chapter 9 (""Leaving Town: Business Travel""), in the section ""Taking People With You"", it specifically discusses your situation. Paraphrasing, it says that you can deduct the amount any eligible expenses would have cost you if you were traveling without your kids. So, you can deduct the cost the smaller hotel room that you and your wife would have normally rented if you were alone.  How your side trips affect your business deductions: According to the book, since you spent 50% or more of your time on business activities while traveling in the U.S.: Deducting meals shared with your kids: You can deduct meals as either entertainment or travel expenses.  I would recommend you buy one of Nolo's books on deductions, as it goes into much more detail than I do here." "I'm assuming that by saying ""I'm a US resident now"" you're referring to the residency determination for tax purposes. Should I file a return in the US even though there is no income here ? Yes. US taxes its residents for tax purposes (which is not the same as residents for immigration or other purposes) on worldwide income. If yes, do I get credits for the taxes I paid in India. What form   would I need to submit for the same ? I am assuming this form has to   be issued by IT Dept in India or the employer in India ? The IRS doesn't require you to submit your Indian tax return with your US tax return, however they may ask for it later if your US tax return comes under examination. Generally, you claim foreign tax credits using form 1116 attached to your tax return. Specifically for India there may also be some clause in the Indo-US tax treaty that might be relevant to you. Treaty claims are made using form 8833 attached to your tax return, and I suggest having a professional (EA/CPA licensed in your State) prepare such a return. Although no stock transactions were done last year, should I still   declare the value of total stocks I own ? If so what is an approx. tax   rate or the maximum tax rate. Yes, this is done using form 8938 attached to your tax return and also form 114 (FBAR) filed separately with FinCEN. Pay attention: the forms are very similar with regard to the information you provide on them, but they go to different agencies and have different filing requirements and penalties for non-compliance. As to tax rates - that depends on the types of stocks and how you decide to  treat them. Generally, the tax rate for PFIC is very high, so that if any of your stocks are classified as PFIC - you'd better talk to a professional tax adviser (EA/CPA licensed in your State) about how to deal with them. Non-PFIC stocks are dealt with the same as if they were in the US, unless you match certain criteria described in the instructions to form 5471 (then a different set of rules apply, talk to a licensed tax adviser). I will be transferring most of my stock to my father this year, will   this need to be declared ? Yes, using form 709. Gift tax may be due. Talk to a licensed tax adviser (EA/CPA licensed in your State). I have an apartment in India this year, will this need to be declared   or only when I sell the same later on ? If there's no income from it - then no (assuming you own it directly in your own name, for indirect ownership - yes, you do), but when you sell you will have to declare the sale and pay tax on the gains. Again, treaty may come into play, talk to a tax adviser. Also, be aware of Section 121 exclusion which may make it more beneficial for you to sell earlier." Let's have a look at Who must send a tax return: You’ll need to send a tax return if, in the last tax year: And we're done. It doesn't matter that your tax will come out to zero - you still need to TELL them this, otherwise how are they going to know? 'Person liable for zero tax who doesn't send their tax return' and 'Person liable for a million quid of tax who doesn't send their tax return' look the same... "Do I understand correctly, that we still can file as ""Married filing   jointly"", just add Schedule C and Schedule SE for her? Yes. Business registration information letter she got once registered   mentions that her due date for filing tax return is January 31, 2016.   Does this prevent us from filing jointly (as far as I understand, I   can't file my income before that date)? IRS sends no such letters. IRS also doesn't require any registration. Be careful, you might be a victim to a phishing attack here. In any case, sole proprietor files a regular individual tax return with the regular April 15th deadline. Do I understand correctly that we do not qualify as ""Family   partnership"" (I do not participate in her business in any way other   than giving her money for initial tools/materials purchase)? Yes. Do I understand correctly that she did not have to do regular   estimated tax payments as business was not expected to generate income   this year? You're asking or saying? How would we know what she expected? In any case, you can use your withholding (adjust the W4) to compensate." "In a word, no. If your income is high enough to have to file a return, you have to file a return. My accountant has a nice mindset for making it more palatable. I'll paraphrase: ""Our tax system is ludicrously complicated. As a result, it is your duty as an American to seek out and take advantage of every deduction and credit available to you. If our politicians and leaders put it into the tax code, use it to your advantage."" A friend of mine got a free golf cart that way. It was a crazy combination of credits and loopholes for electric vehicles. That loophole has been closed, and some would say it's a great example of him exercising his patriotic duty." As Mhoran stated, no dependents, no need.  Even with dependants, insurance is to cover  those who would otherwise have a hardship. Once the kids are off to college and house paid for, the need drops dramatically.  There are some rather complex uses for insurance when estates are large but potentially illiquid. Clearly this doesn't apply to you. Unfortunately, you are required, but most states do have agreements with neighboring states that let the states share the collected taxes without the person having to pay double taxes. So being as this is your first tax return in your current situation, you might be wise to have a professional fill it out for you this year and then next year you can use it as a template. Additionally, I really would like to see someone challenge this across state lines taxation in court. It sure seems to me that it is a inter-state tariff/duty, which the state's are expressly forbidden from doing in the constitution. "If you're ""living off the land"" and make no money, then you don't have to file.  Though you might be able to actually make money through credits and the like if you do file. If you've lost more than you've made, then you'll probably need to file since someone will have needed to report that they paid you (W-2 or 1099-MISC).  If the IRS receives a form saying that you made X and you don't file, they aren't going to just take your word for it that you lost more than you made, right?  That, and if you want a refund, you'll almost certainly need to file to get it."