Where to start
Installment payments allow donors to give your nation a finite amount of money during a finite period of time. For example, a donor can agree to give $450 in 24 installments, which means her credit card will be charged $18.75 every month for two years. Keep in mind that you cannot accept installment payments on the same donation page you process monthly donations.
Accepting installment payments
Activate installment payments under Donation settings > Basics.
1. Select the One-time payment button.
2. Check the "Allow payment as installments" checkbox.
3. A dropdown menu will appear for you to select the maximum number of monthly installments you will accept.
You must select a number of months, up to 31, and then click Save settings for the installment option to be saved.
On the donation page, your donor will select the number of installment payments they would like from a dropdown menu.
To cancel a donor’s installment payment, follow the same steps as you would to cancel a monthly recurring donation.
If you are not seeing these options in Donation settings > Basics, you are probably using a custom theme created before this feature was available.