Canadian accepting money electronically from Americans
I am not aware of a version of Interac available in the U.S., but there are alternative ways to receive money: Cheque. The problem with mailed cheques is that they take time to deliver, and time to clear. If you ship your wares before the cheque has cleared and the cheque is bad, you're out the merchandise. COD. How this works is you place a COD charge on your item at the post office in the amount you charge the customer. The post office delivers the package on the other end when the customer pays. The post office pays you at the time you send the package. There is a fee for this, talk to your local post office or visit the Canada Post website. Money order. Have your U.S. customers send an International Money Order, not a Domestic Money Order. Domestic money orders can only be cashed at a U.S. post office. The problem here is again delivery time, and verifying your customer sent an International Money Order. It can be a pain to have to send back a Domestic Money Order to a customer explaining what they have to do to pay you, even more painful if you don't catch the error before shipping your wares. Credit Card. There are a number of companies offering credit card processing that are much cheaper than a bank. PayPal, Square, and Intuit are three such companies offering these services. After I did my investigations I found Square to be the best deal for me. Please do your own research on these companies (and banks!) and find out which one makes the most sense for you. Some transaction companies may forbid the processing of payment for e-cig materials as they my be classed as tobacco.
The mechanism of supply and demand is imperfect.  Producers don't know exactly how many purchasers/consumers for a good there are.  Some goods, by their nature, are in short supply, and some are plentiful. The process of price discovery is one where (in a nominally free market) producers and purchasers make offers and counter-offers to assess what the price should be.  As they do this the historical price changes, usually floating around some long-term average.  As it goes up, we experience inflation.  As it goes down, deflation. However, there isn't a fixed supply of producers and purchasers, so as new ones arrive and old ones leave, this too has an impact on supply and prices. Money (either in electronic or physical form) needs to be available to reflect the transactions and underpin the economy. Most central banks (at least in more established economies) aim for inflation of 2-4% by controlling the availability of money and the cost of borrowing new money.  There are numerous ways they can do this (printing, issuing bonds, etc.). The reason one wants some degree of inflation is because employees will never accept a pay cut even when one would significantly improve the overall economy.  Companies often decrease their prices in order to match lower demand, but employees don't usually accept decreased wages for decreased labour demand. A nominal degree of overall money inflation therefore solves this problem.  Employees who get a below-inflation wage increase are actually getting a wage cut. Supply and demand must be matched and some inflation is the inevitable consequence of this. Wikipedia has a nice definition of financial literacy (emphasis below is mine): [...] refers to an   individual's ability to make informed   judgments and effective decisions   about the use and management of their   money. Raising interest in personal   finance is now a focus of state-run   programs in countries including   Australia, Japan, the United States   and the UK. [...]  As for how you can become financially literate, here are some suggestions: Learn about how basic financial products works: bank accounts, mortgages, credit cards, investment accounts, insurance (home, car, life, disability, medical.) Free printed & online materials should be available from your existing financial service providers to help you with your existing products.  In particular, learn about the fees, interest, or other charges you may incur with these products.  Becoming fee-aware is a step towards financial literacy, since financially literate people compare costs.  Seek out additional information on each type of product from unbiased sources (i.e. sources not trying to sell you something.) Get out of debt and stay out of debt. This may take a while. Focus on your highest-interest loans first. Learn the difference between good debt and bad debt.   Learn about compound interest.  Once you understand compound interest, you'll understand why being in debt is bad for your financial well-being. If you aren't already saving money for retirement, start now.  Investigate whether your employer offers an advantageous matched 401(k) plan (or group RRSP/DC plan for Canadians) or a pension plan.  If your employer offers a good plan, sign up.  If you get to choose your own investments, keep it simple and favor low-cost balanced index funds until you understand the different types of investments.  Read the material provided by the plan sponsor, try online tools provided, and seek out additional information from unbiased sources. If your employer doesn't offer an advantageous retirement plan, open an individual retirement account or IRA (or personal RRSP for Canadians.)  If your employer does offer a plan, you can set one of these up to save even more.  You could start with access to a family of low-cost mutual funds (examples: Vanguard for Americans, or TD eFunds for Canadians) or earn advanced credit by learning about discount brokers and self-directed accounts. Understand how income taxes and other taxes work.  If you have an accountant prepare your taxes, ask questions.  If you prepare your taxes yourself, understand what you're doing and don't file blind.  Seek help if necessary.  There are many good books on how income tax works.  Software packages that help you self-file often have online help worth reading – read it. Learn about life insurance, medical insurance, disability insurance, wills, living wills & powers of attorney, and estate planning.  Death and illness can derail your family's finances.  Learn how these things can help. Seek out and read key books on personal finance topics.  e.g. Your Money Or Your Life, Why Smart People Make Big Money Mistakes, The Four Pillars of Investing, The Random Walk Guide to Investing, and many more. Seek out and read good personal finance blogs.  There's a wealth of information available for free on the Internet, but do check facts and assumptions. Here are some suggested blogs for American readers and some suggested blogs for Canadian readers. Subscribe to a personal finance periodical and read it.  Good ones to start with are Kiplinger's Personal Finance Magazine in the U.S. and MoneySense Magazine in Canada.  The business section in your local newspaper may sometimes have personal finance articles worth reading, too. Shameless plug: Ask more questions on this site. The Personal Finance & Money Stack Exchange is here to help you learn about money & finance, so you can make better financial decisions.  We're all here to learn and help others learn about money. Keep learning! From experience, Mastercard and Visa charge vendors about the same (around 2%-5%) while American Express and Diners Club are astonishingly expensive (6%-10%) and you'll find that few small retailers are very comfortable accepting these. The variation comes from the volume of trade that vendors provide.  A big retailer will negotiate a very low rate while smaller businesses will be hit with higher charges. "You answered your own question ""whether someone buys is a different thing"". You can ask any price that you want. (Or given an electronic brokerage, you can enter the highest value that the system was designed to accept.) The market (demand) will determine whether anyone will buy at the price you are asking. A better strategy if you want to make an unreasonable amount of money is to put in a buy order at an unreasonably low price and hope a glitch causes a flash crash and allows you to purchase at that price. There may be rules that unravel your purchase after the fact, but it has a better chance of succeeding than trying to sell at an unreasonably high price." Yes.  If you reply back, they'll confirm that Uncle Alex did indeed leave you $7 million, and you just need to send them a few thousand dollars for taxes and estate fees and then they'll wire you the money.  And then there'll be customs fees.  And then more taxes.  And of course, there will be separate import fees.  And so on until you run out of money. &gt;*The Canadian dollar was higher Wednesday, benefitting from the major deal struck that will see American fast food giant Burger King Worldwide Inc. buy Canadian coffee-and-doughnut chain Tim Hortons Inc. for $12.5-billion.*  &gt;*The loonie rose 0.41 of a cent to 91.72 cents (U.S.).*  &gt;*The cash and stock deal will see the parent of the U.S. firm, 3G Capital, own 51 per cent of a new company which will be the world’s third-largest quick service restaurant company.*  Cross-post from /r/MAConservative "I sent myself an Tangerine email money transfer. They sent me an email which took me to a website. After I entered the secret answer, they asked me for the destination bank account's details. They asked me to enter the transit number once, the institution number once, and the account number twice. They also showed a bold warning message: ""Please ensure that the details of your Canadian Bank Account (account number and bank information) are entered correctly."" Asking for the account number twice isn't a perfect safeguard, but it's better than nothing. In some countries, bank account numbers include a ""check digit"" for typo prevention, but I was unable to find any evidence online that this is true in Canada. Tangerine's system isn't 100% mistake-proof, but it's good enough that I think I'm going to use it." I'm going to give the checkmark to Joe, but I wanted to convey my personal experience. I bank with TD in New Jersey and was informed by the teller that I simply needed to endorse the check myself and indicate Parent of Minor. I cannot attest if other banks will accept this, but it at least works for TD and my situation in particular.