How to Make a Simple Invoice? - Step by Step Guide

By InvoiceManagers · Sep 11, 2025

Invoice

Okay, so let’s be honest—making a simple invoice sounds boring, but it’s something every small business owner or freelancer has to do at some point. The first time I had to send one, I literally opened Word, typed “INVOICE” in big bold letters at the top, and kind of guessed the rest. It wasn’t pretty, but it worked.

Over time, I figured out there’s really no secret formula. You just need to make sure the important stuff is on the page, and keep it clear enough that your client knows what to pay and when.

What Goes Into a Simple Invoice?

Think of it like writing a note to your client, but with numbers. A simple invoice usually includes:

  • Your info (name, business, contact details)
  • Their info (the person or company paying you)
  • What you did or sold?
  • How much does it cost?
  • When should they pay?

That’s it. Don’t overcomplicate it.

Step 1: Put Your Info at the Top

Your name, business name, phone, email—whatever makes it easy for the client to know this invoice is coming from you. If you’ve got a logo, slap it in there too. It looks a bit more professional, even if the rest is plain.

Step 2: Add the Client’s Details

This part is straightforward: write who’s paying. I once sent an invoice without the company’s department listed, and it bounced around for weeks. Lesson learned—be specific.

Step 3: Don’t Stress About Invoice Numbers

In the old days, people would sit and type “Invoice #001” or “Invoice #002” manually. Honestly, I used to do the same in Excel, and more than once I repeated the same number without realizing it. Total headache later when checking payments.

But here’s the good part: if you’re using a tool like InvoiceManagers, the invoice number is created automatically. No need to worry about messing it up. Each invoice gets its own unique ID the moment you generate it, so you can focus on the work instead of bookkeeping details.

Step 4: List the Work or Items

No need for long paragraphs here. A small table or list does the trick:

Description Qty Rate Total
Logo Design 1 $200 $200
Website Edits 3 $50 $150

Simple, clear, no confusion.

Step 5: Add Totals and Payment Terms

Put the grand total at the bottom, and write how and when you expect payment. Something like “Due within 7 days, payable by bank transfer.” If you only accept cash, say that. Don’t assume the client just knows.

The Old Way vs. The Smart Way

I used to make all my invoices in Excel. Honestly, it worked… until I forgot to update a date or copied the wrong total. Then I’d be emailing clients trying to “fix” my own mistake. Not fun.

Now, using something like instant invoices Managers is just faster. You type the details once, it formats everything cleanly, and you can even keep track of who’s paid. For anyone tired of editing the same Word doc over and over, this kind of tool is a lifesaver.

Final Thoughts

Making a simple invoice shouldn’t take hours. Keep it clear, keep it tidy, and don’t stress about making it fancy. Once you’ve got your first template down, the rest are just copy, tweak, and send.

And hey—if you mess up the first one, don’t worry. We’ve all sent invoices with typos. The important thing is that your client knows what to pay, how much, and when. Everything else is extra.

👉 Try it now: Generate your free invoice

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