What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
There's an option in properties for stripe payment to Charge Customer at a later time.
Click on Properties
Choose immediately or later under "Charge Customer"
To partially bill your customer you can the "Subscription" type and put a "First Payment" amount then charge the balance. Please check this guide https://www.jotform.com/help/166-How-to-setup-a-recurring-payment-option. The only problem with the subscription type is a recurring payment.
not sure if this answers my question..........I want to charge them immediately (deposit) AND then also charge them later (balance)
Unfortunately, this is not possible with Stripe since the subscriptions are recurring payments and have to stop them manually. However, it is possible to achieve your requirement by using PayPal subscription method.
Alternatively, you may consider receiving custom amount on the same JotForm so that the user have to submit the form twice.
Hope this information helps. Please let us know if we can be of any further help. Thank you!