Blog
Create Professional Invoices for Free
June 16, 2026 · 6 min read time
TL;DR: If you only send a couple of invoices each month, you should not have to pay for a full billing system before you need one. DoubleTime's free Core plan lets you create and send 2 invoices per month, with no subscription required.
Invoicing should not feel like a project of its own.
The work is done. The client knows what you delivered. You know what needs to be billed.
At that point, the next step should be simple: create a clear invoice, send it, and keep a record.
But a lot of invoicing tools are built for people who invoice all the time. That can be useful once billing gets busy. It can also feel like too much if you are freelancing occasionally, testing a side project, or only billing one or two clients in a month.
You do not always need a full accounting setup.
Sometimes you just need to send a professional invoice and get paid.
Why simple invoicing gets complicated
If you have ever tried to send a basic invoice, this might feel familiar:
You sign up for a tool
You create the invoice
You look for the send button
You find out the feature you need sits behind an upgrade
There is nothing wrong with paid billing software. If you invoice heavily, need deeper accounting features, or want advanced reporting, paying for the right system makes sense.
The problem is that not every freelancer is at that stage.
For occasional work, a subscription can be a mismatch. You are not trying to run a large back office. You are trying to bill for work you have already finished.
That is why free invoicing matters.
Not as a trial that pressures you to upgrade, but as a simple way to handle light billing when light billing is all you need.
What a professional invoice actually needs
A professional invoice does not need to be fancy.
At a minimum, it should include:
Your name or business name
Your client details
A clear description of the work
Line items with quantities, rates, or fixed amounts
The total payable
Tax details where they apply
Payment terms or payment instructions
That is the core of a useful invoice.
The rest is about clarity.
Your client should be able to see what they are being charged for, how much they owe, when payment is due, and how to pay you. You should be able to look back later and understand what was sent.
That sounds basic, but it matters. A clean invoice helps the client trust what they are paying, and it helps you avoid awkward follow-up later.
Start with the work you need to bill
Before opening an invoicing tool, get clear on what the invoice is for.
For hourly work, that might mean reviewing the time you captured for a client or project. For fixed-price work, it might mean listing the deliverables, milestones, or services you agreed to provide.
Either way, the goal is the same: turn the work into clear line items.
A simple flow looks like this:
Create or choose the client.
Add the work that needs to be billed.
Confirm the rate, quantity, tax, and total.
Review the invoice before sending it.
Send it and keep a record.
That is enough for a lot of freelancers, contractors, consultants, and side projects.
What to check before you send it
Before sending an invoice, take a minute to check the details that usually cause problems later.
Look at the client name and email. Check the dates. Make sure the line items are clear enough that the client can recognise the work. Confirm the rate or fixed amount. Check the total. Add payment terms if you use them.
If tax applies, make sure it is shown in a way that matches how you bill.
None of that needs to take long.
The point is not to turn invoicing into a long review process. The point is to send something you feel confident about.
Where DoubleTime fits
DoubleTime is built around the moment where completed work becomes client billing.
Instead of treating invoicing as a separate chore, it keeps work, rates, clients, and invoices close together. You can capture billable work as you go, then turn that work into invoice lines when billing time arrives.
You can also skip time tracking.
If you already know what you need to bill, you can create an invoice with manual line items, review the details, and send it without setting up anything bigger first.
That makes DoubleTime useful for two common situations:
You tracked the work and want the invoice to come from that record.
You already know the amount and just need to create a clean invoice quickly.
With DoubleTime's free Core plan, you can create and send 2 invoices per month for free. There is no subscription required, and you do not need to add a credit card to start.
For occasional invoicing, that is often enough.
When you might need more than free invoicing
Free invoicing is useful when your billing needs are simple.
If you are sending invoices every week, managing more clients, checking unpaid invoices often, or needing more invoice options, a paid plan or a fuller accounting system may be the better fit.
DoubleTime's Pro plan is there for busier billing. It includes unlimited invoicing, overdue invoice reports, unbilled work reports, Pro invoice layouts, unbranded client invoices, and advanced tax controls.
But if you are early, occasional, or only sending a couple of invoices each month, starting free keeps things lighter.
Get your first invoice out the door
If invoicing has been sitting on your list because the tools feel heavier than the task, keep the first version simple.
You can start with:
Create your first client.
Set your hourly rate or use fixed line items.
Add captured work or manual invoice lines.
Check the total and payment terms.
Send the invoice.
That is enough to move from nothing to a sent invoice without committing to a subscription.
You can do that with DoubleTime's free Core plan and send up to 2 invoices per month without starting a paid subscription.
Final thought
You should not need to pay just to ask a client to pay you.
And you should not have to second guess what you send.
If you only send a few invoices each month, your invoicing tool should fit that reality.
It should be simple enough to start, professional enough to send, and flexible enough to grow when billing gets busier.