To clarify, are they connected to QuickBooks Self-Employed (QBSE) online banking? If these transactions are missing, make sure to filter the date to All. If you connected your bank for the first time, QuickBooks downloads your most recent or 90 days' worth of transactions.
Should you need to get older transactions, you can bring them in to QBSE using Excel CSV files. You can use either a 3-column or 4-column format. I've attached a screenshot for your reference.
Then, you'll have to make sure you've chosen the correct columns in the mapping stage. Otherwise, QuickBooks will not be able to read the data. To make the mapping stage easier, you can do the following:
Delete columns you do not need from your CSV to avoid any confusion. The columns that are required by QuickBooks are:
Date - Correct and standardize the date format to a single format (for example, dd/mm/yyyy).
Description
Amount
Change the names of the columns in your CSV to match the titles in QuickBooks.
Before deleting any rows and columns, please ensure to secure a backup copy. Follow the steps below to start the importing process.
Go to the Gear icon.
Select Imports.
Select Import older transactions for the account you want to add transactions to.
Select Browse and find the file you downloaded from your bank. It's usually in your Downloads folder.
Select the file and select Open to start the import.
Review the column headers and data. Make sure the Date, Description, and Amount columns on the CSV match the columns and order in QuickBooks. The other column headers can be in any order.
Select Continue to complete the import.
Follow the on-screen instruction.
After you download your transactions in QuickBooks, you can begin reviewing them. This organizes your income and expenses. This way, you'll know what areas of your business have the biggest impact.
Here are some helpful resources that will ensure your success: