Better rate for investment between CD or savings
Excel has two functions you can use: Your question has the CD with a APR and the savings account that mentions both APR and APY. So convert them both to APY to compare them. The savings account (2.27 APY) will return more money based on the numbers in your question (2.27% vs 1.56%) The previous part was the math part of the answer. The following takes into other considerations. For this case the Savings account will return a larger amount of money if the conditions don't change. The CD rate is guaranteed, but the savings account could change every business day. The savings rate could go up, or down. If you expect the savings account rate to rain higher than the CD you might not want to lock into the CD. If you expect the savings rate will drop then get the CD. Of course  there are penalties if you cash in the CD early.
I would put about a month's worth of expenses in the highest-paying savings account that you find convenient to access. For the rest, I recommend Ally's High-Yield CDs — specifically, the 5-year option. Normally 5 years would be way too long to commit short-term savings to a CD. However, the Ally CDs allow you to break them for a penalty of only two months worth of interest. If you look at the graph below (from when the rates were 3.09% APY), you can see the effective interest rate at every possible time you break the CD early. Doing the math, if you can keep your savings in the account for at least four months, it will outperform any other current FDIC-backed investment that I am aware of, for the length of time the money was invested.  (credit: MyMoneyBlog) A lot of online savings accounts, and even high-yield checking accounts, have equivalent or better rates than CDs.  So, do you research, and I bet you can find a great rate, while keeping your money liquid. The problem with CDs is that you can't get at your money until the CD matures (without paying penalties).  If you can keep the money in a savings (or high-yield checking) account you will be much better off. Ultimately, a blend of the two approaches may be the best option. Based on your question, I am going to assume your criterion are: Based on these, I believe you'd be interested in a different savings account, a CD, or money market account. Savings account can get you up to 1.3% and money market accounts can get up to 1.5%.  CDs can get you a little more, but they're a little trickier. For example, a 5 year CD could get up to 2%. However, now you're money is locked away for the next few years, so this is not a good option if this money is your emergency fund or you want to use it soon. Also, if interest rates increase then your money market and savings accounts' interest rates will increase but your CD's interest rate misses out. Conversely, if interest rates drop, you're still locked into a higher rate. This is Ellie Lan, investment analyst at Betterment. To answer your question, American investors are drawn to use the S&P 500 (SPY) as a benchmark to measure the performance of Betterment portfolios, particularly because it’s familiar and it’s the index always reported in the news. However, going all in to invest in SPY is not a good investment strategy—and even using it to compare your own diversified investments is misleading. We outline some of the pitfalls of this approach in this article: Why the S&P 500 Is a Bad Benchmark. An “algo-advisor” service like Betterment is a preferable approach and provides a number of advantages over simply investing in ETFs (SPY or others like VOO or IVV) that track the S&P 500.  So, why invest with Betterment rather than in the S&P 500? Let’s first look at the issue of diversification. SPY only exposes investors to stocks in the U.S. large cap market. This may feel acceptable because of home bias, which is the tendency to invest disproportionately in domestic equities relative to foreign equities, regardless of their home country.  However, investing in one geography and one asset class is riskier than global diversification because inflation risk, exchange-rate risk, and interest-rate risk will likely affect all U.S. stocks to a similar degree in the event of a U.S. downturn. In contrast, a well-diversified portfolio invests in a balance between bonds and stocks, and the ratio of bonds to stocks is dependent upon the investment horizon as well as the individual's goals.  By constructing a portfolio from stock and bond ETFs across the world, Betterment reduces your portfolio’s sensitivity to swings. And the diversification goes beyond mere asset class and geography. For example, Betterment’s basket of bond ETFs have varying durations (e.g., short-term Treasuries have an effective duration of less than six months vs. U.S. corporate bonds, which have an effective duration of just more than 8 years) and credit quality. The level of diversification further helps you manage risk.  Dan Egan, Betterment’s Director of Behavioral Finance and Investing, examined the increase in returns by moving from a U.S.-only portfolio to a globally diversified portfolio. On a risk-adjusted basis, the Betterment portfolio has historically outperformed a simple DIY investor portfolio by as much as 1.8% per year, attributed solely to diversification.   Now, let’s assume that the investor at hand (Investor A) is a sophisticated investor who understands the importance of diversification. Additionally, let’s assume that he understands the optimal allocation for his age, risk appetite, and investment horizon. Investor A will still benefit from investing with Betterment.  Automating his portfolio management with Betterment helps to insulate Investor A from the ’behavior gap,’ or the tendency for investors to sacrifice returns due to bad timing. Studies show that individual investors lose, on average, anywhere between 1.2% to 4.3% due to the behavior gap, and this gap can be as high as 6.5% for the most active investors. Compared to the average investor, Betterment customers have a behavior gap that is 1.25% lower. How? Betterment has implemented smart design to discourage market timing and short-sighted decision making.  For example, Betterment’s Tax Impact Preview feature allows users to view the tax hit of a withdrawal or allocation change before a decision is made. Currently, Betterment is the only automated investment service to offer this capability. This function allows you to see a detailed estimate of the expected gains or losses broken down by short- and long-term, making it possible for investors to make better decisions about whether short-term gains should be deferred to the long-term. Now, for the sake of comparison, let’s assume that we have an even more sophisticated investor (Investor B), who understands the pitfalls of the behavior gap and is somehow able to avoid it. Betterment is still a better tool for Investor B because it offers a suite of tax-efficient features, including tax loss harvesting, smarter cost-basis accounting, municipal bonds, smart dividend reinvesting, and more. Each of these strategies can be automatically deployed inside the portfolio—Investor B need not do a thing. Each of these strategies can boost returns by lowering tax exposure. To return to your initial question—why not simply invest in the S&P 500? Investing is a long-term proposition, particularly when saving for retirement or other goals with a time horizon of several decades. To be a successful long-term investor means employing the core principles of diversification, tax management, and behavior management. While the S&P might look like a ‘hot’ investment one year, there are always reversals of fortune. The goal with long-term passive investing—the kind of investing that Betterment offers—is to help you reach your investing goals as efficiently as possible.   Lastly, Betterment offers best-in-industry advice about where to save and how much to save for no fee. Others have pointed out why one typically chooses a CD: to lock in an interest rate that's higher than most other savings accounts (at the expense of having quick access to your money). While most savings accounts have practically 0% return, there are high yield savings accounts out there with little to no strings that offer ~1% APY. I've personally not found CDs to be compelling when viewed against those, especially for something like an emergency fund where I'd rather just know it's available without having to think about penalties and such. Some people ladder CDs so that they're always no more than a month or so away from having access to some of the money, but for the return I've decided I prefer to just avoid the hassle. For 2.25%, which I haven't really seen, I might consider it, but in any case, you're better served by paying more to your loans. 10-15% of the bat you want to keep liquid in a savings account with interest at 1.5% that best at the moment. In case of a real emergency.  Look in to dividend stocks they can bring in 10-15% on your investment and fairly liquid as well.  There's also rental properties but 40k isn't much room to move around with in that area. "There are two reasons you would get a higher yield for savings accounts: either because it is not guaranteed by a national deposit insurance fund (CDIC I presume in Canada), or you have to hold it for a longer term. Money Market Accounts are insured in the U.S. and are also very liquid since you can debit from it any time. Because of this, they offer much lower rates of interest than comparable products.  If you look at the savings products such as the 1.50% momentum savings account offered by ScotiaBank, you actually have to hold a $5000 balance and not make any debit from it for 90 days in order to get the extra 0.75% that would get you to 1.50%. Essentially this is roughly equivalent to offering you a 1.50% GIC with a 0.75% withdrawal penalty fee, but simply presented in more ""positive"" terms. As for the Implicity Financial Financial 1.75% offering, it looks like it is not insured by the CDIC." A CD ladder is an ideal way to hold your emergency funds and eke out a few more percentage points of return.  Buy CDs in denominations close to one month's expenses, and ladder 1 per month with 3, 6 or 12 month CDs (depending on your total cash allocation to emergency funds). By using a frequency that matches your available funds, in a best case scenario, you can perpetually roll over (or as your savings increase, extend to a longer frequency).  If you have an emergency, you have a month's expenses in cash or cash coming in within a month.