Is the EosLog invoice generator really free?

Yes. Generate as many invoice PDFs as you want, free, with no account required. EosLog is the paid product behind the tool — try the free PDF generator first, sign up for the full app only if you want to track invoices, send them by email, accept online payments, and get notified when customers view them.

Do I need an account to generate a PDF?

No. Fill out the form and click Generate PDF — your invoice downloads immediately. We don't save your form data, your customer's information, or your uploaded logo unless you choose to import it into a free EosLog account.

What format is the generated invoice?

A standard PDF (Letter size) with your company logo, a clean line-item table, calculated totals with tax and discount, payment terms, and your contact info in the header and footer. Print it, email it, or upload it anywhere.

Can I add my own logo to the invoice?

Yes. Upload a PNG, JPG, or WebP file under 2MB and it appears in the header of the PDF. The logo file is processed in memory and never saved to our servers.

What payment terms should I put on an HVAC invoice?

Most residential HVAC shops use Net 15 or Due Upon Receipt for service work, and Net 30 for commercial customers. Equipment installs and large repairs often require a deposit at quote and balance due on completion. Spell the terms out clearly so there is no confusion at the time of payment.

How do I bill for refrigerant on an HVAC invoice?

List refrigerant as a separate line item with the type (R-410A, R-32, R-22) and pounds added. Itemize recovery and recharge labor separately if applicable. Most shops mark refrigerant up 2–4× wholesale because supply has tightened. Reclaimed/recovered refrigerant is billed at a higher rate than virgin.

Should I charge late fees on HVAC invoices?

Yes if your terms allow it. Common practice is 1.5%/month (18% APR) starting 30 days after the due date. Include the late-fee policy in the terms section of the invoice and on every monthly statement. Most states cap interest at 18%; check yours before going higher.

Do I need to charge sales tax on HVAC services?

It depends on your state. In most states HVAC labor is non-taxable but parts and materials are taxable. Some states (TX, CT, WV, others) tax services too. Check with your state revenue department or your accountant. The invoice generator lets you set any tax rate.

Free Invoice PDF Generator for HVAC Contractors

Built for HVAC techs and shop owners. Bill a tune-up, diagnostic, or full system replacement in under a minute.

Your company

Company name Phone Email Website Street City State ZIP Brand color (hex) Logo (PNG/JPG, ≤ 2MB)

Customer

Customer name Phone Email Street City State ZIP

Invoice details

Invoice number (optional) Issue date Due date Payment terms Service Date Tax rate (%) Pay online at (optional)

Notes Terms (optional)

Line items

Add what you're billing for. Empty rows are ignored.

No signup, no email. Your PDF downloads the moment you click.

Want more than a one-off PDF?

EosLog turns every invoice into a tracked workflow with online payment collection, automatic late-pay reminders, and full job-to-cash management. Every customer conversation, schedule, and job in one place.

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Free Invoice PDF Generator for HVAC Contractors

Your company

Customer

Invoice details

Line items

That PDF is the end of the story. It doesn't have to be.

Related reading

Want more than a one-off PDF?

Free Invoice PDF Generator for HVAC Contractors

Your company

Customer

Invoice details

Line items

That PDF is the end of the story. It doesn't have to be.

Related reading

The Complete Guide to HVAC Invoicing for Small Shops

Want more than a one-off PDF?