Contractor Invoice Generator: Create Professional Branded Invoices in Seconds from Excel

If you’re an owner-builder or independent contractor, you already know the pain: you’ve tracked every cost in your spreadsheet, the work is done, and now you have to sit down and manually create invoices. One by one. Different formats. Forgetting tax. Missing your logo. Chasing clients for payment.

That ends today.

I built a simple invoice generator that turns your Excel data into clean, professional, fully branded PDF invoices in seconds — even dozens at a time.

It’s called the Invoice Tool, it costs just $19 per month, and it was made for people using the Home Cost & Schedule Planner (or any small business that wants to create invoices using a spreadsheet).

Link: Try the Contractor Invoice Generator Now →

PDF example: branded contractor invoice pdf example invoice generated by https://invoice-tool.streamlit.app/

Why I Built This Tool

The Home Construction Spreadsheet already saves you hundreds of hours on estimating, scheduling, and cash-flow planning. Paired with this tool, you can create fast, consistent invoicing.

So I created a Streamlit app that does exactly what builders need:

  • Takes the line items you already have in Excel
  • Adds your branding, tax rates, due dates, PO numbers, and custom notes
  • Generates perfect PDFs (or a whole ZIP file of dozens)
  • Looks 100% professional so clients and banks take you seriously

No more copy-pasting into Word or clunky online templates.

Key Features of the Contractor Invoice Generator

  • Upload your Excel file (we provide a free downloadable template)
  • Add your company logo and all business details in the sidebar
  • Choose tax rate, due date, thank-you note, PO number, and custom message
  • Generate one invoice or hundreds at once
  • Download the PDFs

Retainage, progress billing, change orders, and subcontractor invoices all work perfectly when you use the template.

How It Pairs Perfectly with the Home Cost & Schedule Planner

You already have every cost, phase, and subcontractor line item in your spreadsheet.

Here’s the 2-minute workflow most users follow:

  1. Finish your draw schedule or phase in the Home Construction Spreadsheet
  2. Copy the relevant rows into the free Excel invoice template
  3. Upload to the invoice tool
  4. Hit Generate → instant professional invoices

Your clients and lender see the same clean, consistent branding every time. It makes you look like a full-service general contractor even if you’re doing it all yourself.

How to Use It (Step-by-Step)

I made a quick 4-minute YouTube tutorial that walks you through everything:

Watch the Tutorial: “No More Manual Invoicing!” →

Or here’s the quick version:

  1. Go to the tool and download the Excel template
  2. Fill in your line items (or copy from the Home Construction Spreadsheet)
  3. Open the sidebar and upload your logo + business info
  4. Upload your completed Excel file
  5. Click Generate Invoices
  6. Download your PDFs, conveniently in a ZIP

Quick note: The app runs on the Streamlit Community Cloud, so if it’s been sitting idle it may take 10–20 seconds to “wake up.” Just refresh the page and wait a moment — it’s back online instantly.

Pricing – Only $19 per Month

For less than the cost of one coffee run, you get unlimited invoice generation, full branding, bulk ZIP downloads, and priority updates.

No per-invoice fees. No contracts. Cancel anytime.

Want Someone to Create the Invoices For You?

If you’d rather skip the tool and have everything done for you (perfect if you’re in the middle of a build and don’t want to learn one more thing), an associate also offers a done-for-you invoice service on Fiverr.

He’ll take your Excel data (using the same template), add your branding, generate professional PDFs, and send you a ready-to-email PDF files.

Order the Done-For-You Invoice Service on Fiverr →

Most builders choose the $19/mo tool for unlimited invoices, but the Fiverr option is great for one-off batches or when you’re super busy on site.

Ready to Get Paid Faster?

Stop wasting evenings on paperwork. Start sending professional invoices that actually get paid on time.

👉 Open the Contractor Invoice Generator (takes 10 seconds to wake up)

And if you haven’t grabbed the Home Cost & Schedule Planner yet, that’s the perfect place to start — it gives you the exact data this invoice tool loves to use.

Get the Home Construction Spreadsheet →

Let me know in the comments (or shoot me an email) what you think of the invoices once you try it. I’m constantly adding small improvements based on feedback from real builders.

Happy building,

Bill Turner

Spreadsheets4Life