You finished the job. Now it’s time to get paid for it.

If you’re still doing this the old way, you know the drill: open a blank Word document, build a table by hand, type in the line items, double-check the math, save it as a PDF, then switch over to your email client, attach the file, and write “Please find attached invoice” for the two-hundredth time.

It works. It’s also slow, easy to mess up, and gives you zero visibility into whether the client has even opened it, let alone paid it.

An automatic invoicing tool skips all of that. You fill in a form once, and the tool builds the invoice, sends it, and tracks what happens next. Here’s exactly how that works, and how to set it up with ABsort in under ten minutes.

What a Good Invoicing Tool Should Actually Do

Before picking a tool, it helps to know what “good” looks like. At minimum, an invoicing tool should let you:

  • Create professional, branded invoices without formatting anything by hand
  • Send invoices directly to clients by email, with no separate attachment step
  • Accept payment through an embedded link, so clients can pay in one click
  • Track which invoices are paid, unpaid, or overdue at a glance
  • Send automatic payment reminders, so you’re not the one nagging
  • Set up recurring billing for retainer or subscription clients
  • Generate basic income and expense reports without extra spreadsheet work

ABsort covers all seven. Here’s what actually sending an invoice looks like.

How to Send an Invoice to a Client Using ABsort

1. Create your ABsort account. Go to absort.net and click “Get Started.” Setup takes a couple of minutes, no credit card required to start.

2. Add your business details once. The first time you create an invoice, ABsort asks for your business name, logo, address, and preferred payment methods. This information gets saved and reused automatically on every future invoice, so you only enter it once.

3. Go to the Invoices section and click “Create Invoice.” You’ll see a form with three parts: your business details (already filled in from step 2), your client’s details, and the invoice line items.

4. Add your client. If it’s a new client, enter their name, email, and billing address. If you’ve invoiced them before, just select them from your saved client list, no retyping.

5. Add line items. List each product or service, the quantity, and the rate. ABsort calculates the subtotal, applies any tax rate you’ve set, and shows the total in real time as you type, so you can catch errors before you send anything.

6. Set the due date and payment terms. Pick a specific due date rather than a vague “net 30.” ABsort lets you attach late fee terms here too, which shows up directly on the invoice so the client sees it upfront.

7. Preview, then send. Check the preview to make sure everything looks right, then click send. ABsort emails the client a clean, branded invoice with a secure payment link built in, no PDF attachment required. They can pay by card or bank transfer directly from the email.

8. Track the status from your dashboard. Once sent, the invoice shows up in your dashboard as Sent, Viewed, Paid, or Overdue. You’ll know the moment a client opens the email, and you’ll know the moment they pay, without asking them.

Setting Up Automatic Payment Reminders

This is the part that saves the most time. Instead of manually remembering to follow up on unpaid invoices, ABsort lets you set a reminder schedule once, and it runs automatically after that.

A typical setup looks like:

  • A friendly reminder 3 days before the due date
  • A neutral notice on the due date itself
  • A slightly firmer follow-up a few days after the due date
  • A final reminder that references any late fee you’ve set

You configure this once in your account settings, and every invoice you send from then on follows the same schedule. If the client pays at any point, the reminders stop automatically. If you’d rather write your own reminder wording, you can edit the templates directly.

Setting Up Recurring Invoices for Retainer Clients

If you bill the same client every month, whether it’s a retainer, a subscription, or ongoing project work, you don’t need to build a fresh invoice each time. ABsort lets you mark any invoice as recurring, choose the frequency (weekly, monthly, or a custom schedule), and it will generate and send itself automatically going forward.

We cover the full setup, including how to handle mid-cycle price changes and pausing a subscription temporarily, in a dedicated guide to recurring invoices.

What to Include on Every Invoice to Avoid Delays

A surprising number of late payments come down to invoices missing basic information, forcing the client to email back and ask for clarification before they can even process payment. Every invoice should include:

  • A unique invoice number
  • Your business name, address, and tax ID if applicable
  • The client’s correct billing name and address
  • A clear description of each line item, not just “services rendered”
  • The exact due date, not just payment terms like “net 15”
  • Your accepted payment methods and a direct payment link

ABsort fills in most of this automatically once your business profile is set up, which is exactly why templates cut down on back-and-forth emails asking “can you clarify this line item.”

Common Invoicing Mistakes to Avoid

Waiting too long to invoice. The longer you wait after finishing the work, the more the invoice feels like a surprise rather than a natural next step. Send it within 24 hours of completing the work or milestone.

Making clients hunt for how to pay. If the invoice doesn’t include a direct payment link, you’re adding an extra step that gives clients a reason to put it off. Embed the payment method directly.

Not tracking invoice status. Sending an invoice and forgetting about it means you find out it’s overdue only when your bank balance looks lower than expected. A dashboard view of paid, unpaid, and overdue invoices should be something you check weekly, not something you have to reconstruct from memory.

Skipping late fee terms. You don’t have to enforce a late fee on every client, but stating the policy upfront makes clients meaningfully more likely to pay on time even if you never actually charge it.

Frequently Asked Questions

Can I send an invoice without the client creating an ABsort account? Yes. Clients receive the invoice and payment link by email and can pay directly, no account required on their end.

Can I accept partial payments or deposits? Yes, you can split an invoice into a deposit and a final balance, or set a custom payment schedule for larger projects.

What happens if a client doesn’t pay? ABsort’s automatic reminder sequence handles the first few follow-ups. If a payment is significantly overdue, the dashboard flags it so you can decide on next steps, whether that’s a personal follow-up or applying a late fee.

Try It Yourself

Sending invoices shouldn’t take longer than the work itself. Create your first invoice with ABsort and see how much time a proper system saves compared to Word and email.