Step #1:
Log in to your Checkbook.io account.
Step #2:
Go to "Settings" on the bottom left-hand side of the page.

Step #3:
When in Settings, click on the "Accounts" tab.

Step #4:
When in Accounts, click "Add Account".

Step #5:
We recommend attempting to add your bank account with Instant Verification.
If Instant Verification does not work for you, please choose Manual Verification.

Step #6:
If you are an individual adding a Personal Bank Account, select 'Individual'
If you are a business adding a Commercial Bank Account, select 'Business'

Step #7:
Follow the prompts displayed to go through the account verification process.
Please ensure the "Default" toggle is on for the desired bank account.
Step #8:
You can follow these instructions to delete your old bank account information.