Yes, a pledge can be deleted but it can also be modified by writing-off remaining payments.

Note that deleting a pledge is a permanent action. To delete a pledge, go to the Gifts Grid (not the Pledges Grid) and select the specific pledge to be deleted and click on the trash can icon. The icon may be located on the far left or far right side of the grid depending on how you have your columns arranged. You will get a confirmation message asking you to confirm that you really want to delete the pledge. You can cancel or continue and the pledge will be deleted. Any other payments due for that pledge will also be deleted, however previous pledge payments will still be shown. This could lead to confusion in the future, since there will not be a pledge associated with payments that were made. Pledges can also be deleted from the constituents record by going to their Gifts Tab, selecting the appropriate pledge from the grid and using the delete icon as described previously.

Instead of deleting a pledge, the other option is to write-off the remaining pledge payments. A pledge write-off will show that the pledge was originally made, however some, or all of the payments were not completed. To write off a pledge, select the appropriate constituent from the Gifts Grid, and select +New>Gift from the menu at the top of the grid. 

Change the gift type to Pledge Write-Off and be sure to select the correct pledge from the Pledges pull-down menu. Enter the amount to be written-off, it can be all of the remaining pledges or a portion as appropriate. The pledge payments that are written-off will be shown with a check mark next to the amount. Click the green Save or Save and New button at the top or bottom of the page to save the changes. 

The pledge payments will now be shown under the Write Off Amount Column. In the Pledge Grid Summary View, only the total pledge will be shown. In the Pledge Grid Detail View, each of the recurring pledge amounts will be shown. Note the three examples at the top of the grid in the Summary View below. The first pledge for a total of $15,000 had only one payment written-off and still has a remaining balance due. The second pledge for a total of $1,000 had $250 paid and the remaining $750 due written off with no balance due. And the third pledge for a total of $500 had no payments made, the entire amount was written-off and there is no balance due. 

The benefit of using the write-off feature is consistency in reporting. If your organization is reporting pledges as receivables, or money owed to your organization, deleting the pledge can upset balances from month to month. Using the write-off feature allows your organization to account for money that was expected, but not paid.