For this year, 2020, it is especially important to use the full
year when writing dates to protect yourself from becoming a
victim of fraud.
Abbreviating to the last two digits of the year can create a
fraud opportunity, as the date could easily be changed by adding
numbers to the end.
For example: 1/9/20 could become post-dated to 1/9/2019 or dated
to be in the future to 1/9/2021.
Protect your information and write out the full year of 2020 on
checks, forms, and other documentation.