You access the Import Contributions function by clicking CiviContribute on the CiviCRM home page. There are three items underneath the CiviContribute menu item - Find Contributions, Import Contributions and Manage Contribution Pages .
Click on Import Contributions to go to the Import Contributions screen.
If your organization has contact records in MS Access©, Excel© or other applications, you can easily import them into CiviCRM.
Contact Records for Contributors
Contribution imports require that the Contributors already exist as contact records in your CiviCRM database. If you need to import contributions for contributors who haven't been added to CiviCRM yet - you will do this in 2 steps. First, use Import Contacts to add the contact records. If possible, include a unique External ID for each new contact, which you can then use to match contributions to contributors. Then return to this screen and import the contribution records.
Matching Contributions to Contributors
Contribution import files must contain data needed to match the contribution to the contributor. This "matching" can be handled in several different ways:
Save the CSV file you want to import to your local hard drive (or an accessible drive on your network) before you continue.
There are 4 steps in the Import Contributions process: