If you sell on eBay or run a Shopify store, you already know invoicing sounds simple until you actually try to do it. EBay calls its documents different things depending on whether you’re the buyer or the seller. Shopify, for its part, doesn’t generate invoices for your orders automatically at all. A fact that surprises a lot of new store owners the first time a customer asks for one. This guide walks through exactly how invoicing works on both platforms, where each one falls short. And what to do when you need something faster, cleaner, or more flexible than what’s built in.
How to Generate an Invoice on eBay
eBay handles invoices a little differently depending on which side of the sale you’re on.
If you’re a seller and a buyer hasn’t paid yet, you can send them an invoice directly. Open Seller Hub, go to Orders, filter by Awaiting Payment, and select Send Invoice next to the order. From there you can adjust shipping charges, combine multiple items into a single invoice (handy when a buyer wins several auctions from you and you want to offer combined shipping), add a short note, and choose which payment methods you accept. Preview it, then hit send. The buyer gets it by email and can pay straight from it.
One thing that trips people up: eBay won’t let you generate an invoice for an order that’s already been paid. Once payment has gone through, there’s technically nothing left to invoice — the transaction is closed. If your buyer needs a document for their records at that point, the correct move is to send them the order receipt instead, not chase a “send invoice” button that no longer exists.
If you’re a buyer and you want a copy of your purchase for expense tracking or taxes, eBay doesn’t email you a traditional invoice by default the way some retailers do. Instead:
- Go to your Purchase History and find the order
- Select View Order Details
- Click Printer Friendly to get a clean, print-ready version, or use Ctrl+P if you want the item photo included
That printer-friendly page functions as your receipt and contains everything most accountants or expense tools need — order number, item details, price breakdown, and date.
Quick notes on eBay invoicing
- You have roughly 30 days after a listing ends to send a payment invoice — after that, the option disappears
- Combined invoices only work if you’ve turned on “Allow combined payments and shipping” in your Shipping Preferences
- Since eBay moved most sellers to Managed Payments, funds go straight to your linked bank account, not PayPal, so don’t add outdated PayPal instructions to your invoice notes
How to Generate an Invoice on Shopify
Here’s the part that catches a lot of merchants off guard: Shopify doesn’t generate customer-facing invoices out of the box. It generates packing slips and order confirmations, which look similar but aren’t the same thing — an invoice needs to clearly state it’s a request (or record) of payment, usually with tax details laid out, and a packing slip simply isn’t built for that.
So can Shopify generate invoices at all? Yes, just not automatically from your order dashboard. You have three real options:
1. Shopify’s own free invoice generator. This is a separate, standalone tool on Shopify’s website — it’s not tied to your store’s order data, so you fill in the details manually. It works fine for one-off invoices or quotes, lets you drop in your logo, and exports to PDF at no cost. The catch is that because it’s not connected to your store, you’re retyping information you technically already have sitting in your Shopify admin.
2. A Shopify invoice app. If you’re issuing invoices regularly, this is the more sensible route. Apps in this category pull order data automatically, apply tax rules correctly for your region, let you brand the invoice with your store’s colors and logo, and — in the better ones — attach the invoice as a PDF straight onto the order confirmation email so the customer never has to ask. Most offer a free tier for stores with a modest order volume, with paid plans kicking in once you need bulk generation or multi-currency support.
3. A general-purpose free online invoice generator. If you only need to create invoices occasionally, or you sell across more than one channel and don’t want a Shopify-specific app cluttering your store, a standalone free tool works just as well without installing anything.
Creating an invoice in Shopify, step by step
Whichever method you pick, you’ll typically need to fill in the same core fields:
- Your business name, address, and logo
- The customer’s name and billing details
- A unique, sequential invoice number
- Line items with quantity, unit price, and any applicable tax
- Shipping and discounts, if relevant
- Payment terms and due date
Once that’s filled in, download it as a PDF, and either email it directly or attach it to your existing order confirmation.
Which Approach Should You Actually Use?
If you’re a casual eBay seller doing a handful of sales a month, eBay’s built-in “Send Invoice” flow is genuinely enough — there’s no reason to complicate it. Shopify store owners have a slightly different problem, because nothing happens automatically: you either accept that gap and use Shopify’s manual generator for occasional requests, install an app if invoicing is a daily task, or reach for a fast, free tool that isn’t locked into either platform.
That last option matters more than it sounds. A lot of sellers run inventory across eBay, Shopify, and a handful of marketplaces at once, and switching tools every time the sales channel changes gets old fast. A free, no-signup invoice generator like NexBillio lets you create a clean, branded, tax-ready PDF invoice in under a minute regardless of where the order actually came from — no app install, no account, and no per-invoice fee eating into a $12 sale. For anyone juggling multiple storefronts, that consistency alone is worth more than any single platform’s native tool.
Whatever you choose, the fundamentals stay the same: a clear invoice statement, a unique number, complete buyer and seller details, and an itemized breakdown your customer can actually read. Get those right, and the platform you’re selling on stops being the hard part.
