Why do banks insist on allowing transactions without sufficient funds?
The reason they want the transaction to go through is because they make money that way. Remember the overdraft protection might incur a fee. If it does their experience may show them that the fee is a greater source of profit when balanced against the losses incurred because of insufficient funds. Even free overdraft transactions are limited. If they didn't want to make money they would have a way to make sure that multiple overdrafts in a short time window wouldn't require multiple protection events. Remember each time they transfer funds they only bring you to zero. As it is now the coffee you buy after putting money on your subway fare card might also trigger an overdraft transfer. Believe it or not, this is done as a service to you. The reason for this has to do with a fundamental difference between a credit card account and a checking account.  With a credit card account, there is no money in the account; every charge is borrowed money. When you get to your credit limit, your credit transactions will start getting declined, but if the bank does for some reason let one get approved, it's not a big deal for anyone; it just means that you owe a little more than your credit limit. Note that (almost) every credit card transaction today is an electronic transaction.  A checking account, however, has real money in it. When it is gone, it is gone. When a balance inquiry is done, the bank has no way of knowing how many checks you've written that have not been cashed yet. It is a customer's responsibility to know exactly how much money is available to spend.  If you write more checks than you have money for in your account, technically you have committed a crime. Unfortunately, there are too many people now that are not taking the responsibility of calculating their own checking account balance seriously, and bad checks are written all the time. When a bank allows these transactions to be paid even though you don't have enough money in your account, they are preventing a crime from being committed by you. The fee is a finance charge for loaning you the money, but it is also there to encourage you not to spend more than you have.  Even if you use a debit card, it is still tied to a checking account, and the bank doesn't know if you have written enough checks to overdraw your account or not. It is still your responsibility to keep track of your own available balance.  Every time this happens to you, thank the bank as you pay this fee, and then commit to keeping your own running balance and always knowing how much you have left in your account. The laws about this changed in 2010 with the new Overdraft Protection Law HR 1261.  § 140B. (c) Consumer consent opt-In.—A depository institution may   charge overdraft coverage fees with respect to the use of an automatic   teller machine or point of sale transaction only if the consumer has   consented in writing, in electronic form, or in such other form as is   permitted under regulations of the Bureau. Now when you sign up for a bank account you have to opt in to overdraft coverage (the bank transfers funds from other accounts to cover overdrafts), or overdraft protection (the bank simply bounces NSF checks).  I'm pretty sure you could always set this option on your account, but banks were defaulting everyone's account that didn't think to ask such that overdrafts got paid and incurred fees. The law now prohibits them from using that as the default option. This really should be a comment, but I can't yet. The question desperately needs a location tag. In at least some countries(New Zealand), the default action on all insufficient funds transactions is to refuse the transaction. Credit cards are the only common exception. Every bank operating in NZ that I know of acts this way. Sometimes there is a fee for bouncing a transaction, sometimes not, that depends on the bank. Any other option must be explicitly arranged in writing with the bank. Personally, coming from a country where declining transactions is the default, I'd be shocked and angry to be stuck with an automatic transfer from another account. Angry enough to change banks if they won't immediately cease and desist.
How you should record the mortgage payments depends on if you are trying to achieve correct accounting, according to the standards, or if you are just tracking everything for you and your friends. If you're just keeping track for personal reasons, I'd suggest that you set up your check (or journal entry, your preference) how you'd like it to be recorded.  Then, memorize that transaction.  This allows you to use it as many times as you need to, without having to set it up each time.  (Also note: there is no way to record a transaction that decreases cash and increases equity.) If you're trying to keep track of everything according to accounting standards, which it should be if you've set up an official business, then you have a lot more tracking to do with each payment.  Mortgage payments technically do not affect the equity accounts of the owners.  Each mortgage payment should decrease the bank balance, increase interest expense and decrease the mortgage balance, not to mention tracking any escrow account you may have.  The equity accounts would be affected if the owners are contributing funds to the bank account, but equity would increase at the time the funds are deposited, not when the mortgage payments are made. Hope this helps! You could, but the bank won't let you... If you're a sole proprietor - then you could probably open a personal account and just use it, and never tell them that is actually a business. However, depending on your volume of operations, they may switch you on their own to business account by the pattern of your transactions. For corporations, you cannot use a personal account since the corporation is a separate legal entity that owns the funds. Also, you're generally required to separate corporate and personal funds to keep the limited liability protection (which is why you have the corporation to begin with). Generally, business accounts have much higher volumes and much more transactions than personal accounts, and it costs more for the banks to run them. In the US, some banks offer free, or very low-cost, business accounts for small businesses that don't need too many transactions. I'm sure if you shop around, you'll find those in Canada as well. In my experience, this choice is entirely up to the bank itself. There was a time when, given my mothers ATM card I could go to the bank and pull money for her, but the bank has since changed their rules and now they only will allow people listed on the account to access it, card or no card.  If the bank is aware of who you are and knows that your friend is not you, they may be skeptical of allowing your friend to withdraw any money, or they might not care, it's at their discretion.  If they do not know who either of you are, if your friend has the card and information needed, that will likely be sufficient, unless they ask for identification. In the United States, savings accounts generally have higher interest rates than checking or money market accounts.  Part of this is the government restriction on the number of automated transactions per month that can be done on a savings account: this is supposed to allow banks to lengthen the time frame of the cash part of their investments for savings.  This limit is why direct deposit of one's paycheck is almost always into a checking or money market account... and why many people have savings accounts, especially with Internet banks, because they pay significantly higher interest rates than brick and mortar banks. I can see that building credit is a valid reason. I would also suggest another scenario, when you have locked up money in long-term savings, with a substantial penalty for early withdrawal. If you suddenly needed money then you might save money by borrowing against the long-term deposit rather than pay the penalties. This is especially true if you needed the money only for a short time. Banks should be risk averse by default. They make loans to people and businesses after measuring their ability to repay.  After they approve a big project loan like an apartment building, they don't give all the money to the builders upfront. They give money as progress is made and they make sure the funds are not being used inappropriately. There's no reason they couldn't do all this while owning the project, but that would also open them to lawsuits later on if anything wasn't built to code. By keeping the project at arm's length, they avoid future liability. A financial institution is not obligated to offer you a loan. They will only offer you a loan if they believe that they will make money off you. They use all the info available in order to determine if offering you a loan is profitable.  In short, whether they offer you a loan, and the interest rate they charge for that loan, is based on a few things: How much does it cost the bank to borrow money? [aka: how much does the bank need to pay people who have savings accounts with them?]; How much does the bank need to spend in order to administer the loan? [ie: the loan officer's time, a little time for the IT guy who helps around the office, office space they are renting in order to allow the transaction to take place]; and How many people will 'default' and never be able to repay their loan? [ex: if 1 out of 100 people default on their loans, then every one of those 100 loans needs to be charged an extra 1% in order to recover the money the bank will lose on the person who defaults]. What we are mostly interested in here is #3: how likely are you to default? The bank determines that by determining your income, your assets, your current debts outstanding, your past history with payments (also called a credit score), and specifically to mortgages, how much the house is worth.  If you don't have a long credit history, and because you don't have a long income history, and because you are putting <10% down on the condo [20% is often a good % to strive for, and paying less than that can often imply you will need mandatory mortgage insurance, depending on jurisdiction] the bank is a little more uncertain about your likelihood to pay.  Banks don't like uncertainty, and they can deal with that uncertainty in two ways: (1) They can charge you a higher interest rate; OR (2) They can refuse you the loan. Now just because one bank refuses you a loan, doesn't mean all will - but being refused by one bank is probably a good indication that many / most institutions would refuse you, because they all use very similar analytical tools to determine your 'risk level'. If you are refused a loan, you can try again at another institution, or you can wait, save a larger down payment, and build your credit history by faithfully paying your credit card every month, paying your utilities, and making your car and rent payments on time. This will give the banks more comfort that you will have the ability to pay your mortgage every month, and a larger down payment will give them comfort that if the housing market dips, you won't owe more than the house is worth. My parting shot is this: If you are new in your career with no income history, be very careful about buying a property immediately, even if you get approved. A good rule of thumb is to only buy a property when you plan on living there for at least 5 years, or else you are likely to lose money overall, after factoring closing costs and maintenance fees. If you are refused a loan, that's probably a good sign that you aren't financially ready yet, but even if a bank approves you for a loan, you might not be ready yet either. "After this happened the second time, I wonder if there could be a ""catch"" on this.  No I mean, what is my bank's real motivation for allowing me to spend more money.  Credit card companies make money in a few ways. By giving you a higher limit the credit card company hopes you will spend more on the card. This immediately gets them more merchant fees and if they are lucky means you will have to carry the balance for a while earning them interest. If they get really lucky you will miss a payment or two earning them some fees. Of course if they let you borrow too much you might never pay it back. So the credit limit is a balancing act. Letting you borrow more money gives them the potential to make more money but also the potential to lose more money. As you build up a history of paying as agreed they feel comfortable lending you more money."