A short-term investment is an investment that you can easily change back into cash – such as a high-interest savings account or a money market account.
An online savings account can be a good option, especially under the year mark. They are low-risk and low reward options, but it delivers what it promises when you sign up to a guaranteed interest returns rate and can withdraw easily.
There are many choices, and online-only companies like Chip have been beating some of the traditional banks, so make sure you do your research and compare all options.