Solvent

Free invoice generator for freelancers and contractors

A free invoice generator lets you bill a client in minutes: fill in your business details, add line items, and download a finished PDF with no login and no software fee. Solvent's version does one thing the others don't. It shows you, in real time, how much of that invoice belongs to the IRS before you ever hit send.

Your business

Stays in your browser. Never uploaded anywhere.

Used only on your invoice, not this page.

Bill to

Invoice details

Line items

Amount$0.00

Tax, discount & shipping

Payment & notes

Your business

Invoice

# INV-0001

Issued Jul 25, 2026

Due Aug 24, 2026

Bill to

Client name

DescriptionQtyRateAmount
1$0.00$0.00
Subtotal$0.00
Total due$0.00

Thank you for your business.

Clearing your browser data clears your invoice history. Use "Export invoice history (CSV)" any time to keep a copy.

This quarter, this browser

$0 invoiced this Q3 → ~$0 estimated set-aside.

Sep 15, 2026$0

For a precise number that also accounts for income tax, see the Solvent Quarterly Tax Estimator.

Your invoices are saved only in this browser and never sent to us.

Why this one's different. Most free invoicing tools stop at the PDF. You get paid, then you're on your own figuring out what you actually owe. This guide walks through building a complete invoice step by step, then shows how to use Solvent's built-in set-aside calculator so you're not staring down a tax bill you didn't see coming.

How to create an invoice in 7 steps

1. Add your business and client details. Start with your name or business name, your address, and an email your client can reach you at. Then do the same for your client. Give the invoice a due date, an issue date, and a number, and keep the numbering sequential (001, 002, 003) so you're not hunting through old emails once tax season rolls around.

2. Add line items. List what you actually did: a short description, the quantity (hours worked or units delivered), and your rate. The generator multiplies those out automatically. The vaguer your line items, the more likely a client is to question the total, so skip generic labels like "services rendered" and write what you did instead.

3. Set tax, discount, and currency. Apply sales tax or a discount if either applies, and pick your currency from the dropdown if you're billing a client outside the US. Switching currencies updates every line item and the total instantly, so you can build the invoice in whatever currency your client actually pays in.

4. Choose which payment methods to display. Tell the client how you want to get paid, whether that's bank transfer, PayPal, Venmo, or Zelle. Listing the specific account or handle here, rather than making the client ask for it separately, is one of the simplest ways to get paid faster.

5. Add your logo and brand colors. Upload a logo and set a brand color if you have one. It's a small touch, but a branded invoice reads as more established than a plain template, and that matters more than people expect when you're trying to land repeat work.

6. Add a personal note or thank-you message. Leave a short note at the bottom: a thank you, a reminder, whatever's relevant. This is also the spot to spell out your late payment policy in plain terms, so there's no ambiguity if a payment runs late.

7. Preview, then download your invoice. Check the document over before it goes out. Once it looks right, download the finished PDF and send it to your client however you normally do. You can also export your full invoice history to CSV at any time, so you keep a record even if you clear your browser.

What every invoice needs to include

SectionRequired information
Required fieldsInvoice number, issue date, payment due date, and full contact details for both parties
Line items and totalsClear descriptions of services, quantities, individual rates, and the final amount owed
Payment terms and instructionsAccepted payment methods and your standard terms, for example Net 30
Branding and currencyYour logo, brand colors, and the correct currency selection

How to track what you owe as an invoice

Watch the running quarterly total update as you add line items. Every line item you add increases your gross revenue for the quarter, and Solvent's tool keeps a running total as you go. You can see where you stand without opening a spreadsheet or doing the math by hand.

See your estimated tax set-aside calculated automatically from that total. Self-employment tax is 15.3% on net earnings over $400.1Solvent uses that rate as a baseline and shows you roughly what to hold back from each invoice. Treat it as a floor, not a full tax bill: your actual liability also depends on your income tax bracket, so for a precise number, run your totals through the self-employment tax explained guide and the quarterly estimated tax calculator.

Follow the link to the quarterly estimated tax calculator to confirm the current 1040-ES due date. The IRS wants four payments a year, not one lump sum at tax time. The first 2026 payment, covering income from January through March, is due April 15, 2026.2The calculator link updates as each deadline passes, so you're always looking at the next one due, not the last one you already paid.

Download your invoice history as a CSV at tax time for Schedule C. Browser-based tools lose everything if you clear your cache, which is a real risk if this is the only record you're keeping. Export your invoice history as a CSV whenever you want, and keep it somewhere safe for when you sit down with the Schedule C guide for 1099 filers. Worth running your expenses through the home office deduction calculator while you're at it.

The differences between invoices, quotes, receipts, and credit notes

Invoice vs. quote. A quote is what you send before the work starts, an estimate the client uses to decide whether to hire you. An invoice comes after, and it's a request for payment, not a proposal.

Invoice vs. receipt. An invoice asks for money. A receipt confirms it already showed up. You send one before the client pays and issue the other right after.

Invoice vs. credit note. A credit note runs the other direction: it reduces what a client owes, usually because of an overpayment or a canceled order. Think of it as a partial reversal of an invoice you already sent.

Frequently asked questions about creating invoices

Where can I create an invoice for free?

Use the Solvent invoice generator at the top of this page to build one in a few minutes. There's no login and no watermark on the finished document, and you can download the PDF the moment it's ready to send to a client.

Is there a free app for creating invoices?

Solvent doesn't have a dedicated app in the App Store or Google Play right now, but the web tool is fully responsive and works fine on a phone browser. You can build and send an invoice from your phone without installing anything.

What is the best free invoice generator?

That depends on what you need it to do. If you just need a PDF, most free generators are interchangeable. Solvent is the only one we know of that also estimates your quarterly tax set-aside as you build the invoice, which matters if you're self-employed and billing directly.

How can I generate an invoice for free?

Fill in your business and client details, add your line items, and the tool calculates the total for you automatically. From there, download it as a PDF or send it directly to your client. No signup, no fee, no software to install.

Can ChatGPT generate an invoice?

It can draft the text and rough layout if you describe exactly what you need, but it won't produce a clean PDF or calculate your self-employment tax for you. A dedicated generator handles both in a fraction of the time, and it's free either way.

Is Google invoice free?

Google doesn't have a standalone invoice product, but Google Docs and Sheets both offer free templates you can copy and edit. You'll be doing the math and formatting by hand, though, and neither one tracks what you actually owe in taxes.

Can I set up recurring invoices?

Not yet. Solvent's free tool is built for one invoice at a time, so you'll need to create a new one for each billing cycle. Keeping the browser tab open in the meantime makes it quick to reuse your last invoice's details.

Solvent provides educational estimates, not tax advice. Confirm your specific situation with a CPA or enrolled agent.
Nicolas Straut

Nicolas Straut

Personal and business finance writer, former Forbes contributor

Sources

  1. IRS, Self-employment tax (Social Security and Medicare taxes)
  2. IRS, Form 1040-ES, Estimated Tax for Individuals