If you want to allow your clients to pay for a fixed rate item in an installment, use Moxie's payment plans.

You'll want to create your first invoice template before you begin. You can create a specific type of template for your payment plans if you'd like.

Click in a client and then invoice then + or click in accounting > invoices then + to create an invoice. Choose "payment plan" from the options.

In the settings tab, you can choose which invoice template you want to use for this payment plan, when the invoice will be due, tax, late fees, and payment instructions.

Use the toggle to turn on online payments (or off if you don't want to give your clients that option). You can also turn on and off payment reminders for this specific invoice set.

Pro tip - Manage your invoice reminders for your whole account by going to workspace settings > preferences > invoices.

You can add items from your product and service library (or create a new item) or pull in an active fixed price (flat rate) project that you have already created for the client.

Click the payment plan tab to create your plan.

Choose if you'd like the invoice to send automatically or if you'd like to approve it. If you're using online payments, you can also automatically charge the card on file on the due date that you set. This utilizes a Stripe connection. After your client has made a payment, you can use the card on file to automatically charge payments after that.

You'll be able to choose which payment method is used with a dropdown box once you turn on automatic payments. If the box is blank, it will use the default card you've chosen.

Click "+ Add payment event" to add as many installments as you'd like.

For each installment, you'll add a label (this is client-facing), what type of payment (milestone or date), and the percentage of what is due.
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When you use date based installments, Moxie will automatically generate the invoice on the date specified. When you opt for milestone based installments, you will need to click the milestone button in the Payment plan to generate the next installment invoice.

When you're ready to activate your payment plan, click the 3 dots in the upper right and choose the activate option. While the payment plan is in Draft status no installment invoices will be created.

Once the system automatically creates an installment invoice (if date based) or you flag the milestone as complete, an invoice will appear in your workspace. If you did not check the box to automatically send the invoices for each payment, you'll see a notification that lets you know the invoice is ready for your approval. Click the invoice to view and send it. Click "share" and send the invoice via PDF or Moxie email. If the invoice was set to auto send, the document will be sent to the client contacts flagged with Invoice for Default preferences.

If you choose milestone payment, you'll choose when the milestone is complete and ready to be invoiced. After you've activated this payment plan, you'll see it in your client > invoices > payment plans tab.
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Click the invoice to view it. In the upper right corner, you'll have a button that shows the next payment event. Click it to mark if the milestone is completed.

Your client can easily see which payment they are making and what has already been paid on their invoice. At the bottom of each of the payment plan invoices, they will have a box that shows all of the installments which clear marks that show which installment they are paying.