# Invoices & estimates

> Create, send, edit and track invoices and estimates, including recurring invoices.

Source: https://support.billingmart.com/invoices
Updated: 2026-10-26

- [Create an invoice](https://support.billingmart.com/invoices/create-an-invoice.md): Start a draft, add your customer and line items, and see how BillingMart works out the totals before you send.
- [Custom fields on invoices and estimates](https://support.billingmart.com/invoices/custom-fields.md): Add your own details, such as a job address or a policy number, to invoices and estimates, and learn which ones print and which block a send.
- [Send an invoice](https://support.billingmart.com/invoices/send-an-invoice.md): What Save and send does, who gets the email, what happens when the customer's email is not confirmed, and what counts as a send.
- [Change, void or delete an invoice](https://support.billingmart.com/invoices/change-void-or-delete-an-invoice.md): What you can edit on a draft and on a sent invoice, how to void one, why a paid invoice refuses, and what deleting means.
- [Credit notes and adjustments](https://support.billingmart.com/invoices/credit-notes.md): Lower what a customer owes with a credit note, close a balance you will not collect with a write-off, and see how each shows on the invoice.
- [Create, send and convert an estimate](https://support.billingmart.com/invoices/estimates.md): Write an estimate, send it for your customer to accept or decline in their portal, and turn an accepted one into a draft invoice.
- [Recurring invoices](https://support.billingmart.com/invoices/recurring-invoices.md): Set up a schedule that creates and sends the same invoice on a repeating date, and learn what repeats unchanged and what happens at your sending limit.
- [Installment plans](https://support.billingmart.com/invoices/installment-plans.md): Split one total across a set number of invoices that go out on a schedule, and see how the shares are worked out and what your plan must include.
- [Payment reminders](https://support.billingmart.com/invoices/payment-reminders.md): How automatic reminders before, on and after the due date work, how to change the cadence, send one by hand or pause one invoice, and what stops them.
- [What counts as a send](https://support.billingmart.com/invoices/what-counts-as-a-send.md): Which actions use up your monthly sends, which never do, and what still works when you reach your limit.
- [Invoice PDFs and languages](https://support.billingmart.com/invoices/pdf-and-languages.md): Get an invoice as a PDF, choose the language your customer sees, and learn which of the 13 languages are translated and which scripts the PDF cannot print yet.
- [Templates, logo and colours](https://support.billingmart.com/invoices/templates-and-branding.md): How invoice templates, the pay page theme, your logo and your colours work, where each one shows up, and why nothing goes live until a person publishes it.