AI Invoice Generator for General Contractor

An AI Invoice Generator for General Contractor work that turns your itemised scope, allowances and change orders into a clear payment request in minutes.

Generate yours See how Waxe works

Built for General Contractor

Where it hurts

Owners compare bids line by line and assume the cheapest is equivalent without a clear scope
Change orders and unforeseen conditions cause friction unless the proposal sets a clear process
Material and labour cost volatility makes fixed pricing risky without stated assumptions and allowances
Schedule, phasing and trade coordination are hard to convey without a structured timeline
Buyers need proof of licensing, insurance, bonding and safety record before they sign

Pricing model: fixed price or cost-plus with allowances

What you hand over

Site assessment and scope definition
Itemised cost estimate with allowances
Project schedule and phasing plan
Permits and regulatory coordination
Subcontractor and trade management
Materials procurement and quality control
Change-order process and final walkthrough

Papercraft concept: a invoice tailored for General Contractor — How a invoice adapts to General Contractor.

What goes into a Invoice

1
Invoice number & dates
A unique invoice number with issue and due dates so each contractor billing is traceable against the job and its payment window.
2
From & bill-to details
Your company's from-details beside the owner's bill-to information, identifying both parties on the project clearly.
3
Itemised line items
An itemised line-item table breaking out labour, materials and allowances with description, quantity, unit price and amount for the work delivered.
4
Subtotal, tax & discount
A subtotal followed by applicable tax or discount, keeping fixed-price or cost-plus figures transparent before the total.
5
Total due
A single bold total due that reconciles to your quoted model, so the owner sees one clear number to pay.
6
Payment instructions
Plain payment instructions covering accepted methods, terms and where to remit, removing back-and-forth before you get paid.
7
Notes & references
Notes and references tying the invoice to the original estimate, allowances and any signed change orders for the job.

How Waxe builds your contractor invoice

How Waxe generates a invoice, shown as papercraft

1
Describe the completed work
Tell Waxe which phase or job is being billed and paste your scope, line items and allowances. She reads the labour, materials and any change orders you delivered. No template hunting and no blank page to start from.
2
Itemise every line
Waxe builds the line-item table with description, quantity, unit price and amount for each entry. Allowances and change orders get their own named rows. Fixed-price phases or cost-plus labour and markup are laid out to match how you quoted the job.
3
Reconcile the totals
She sums the subtotal, applies the correct tax or discount, and sets one bold total due. The numbers reconcile to your fixed-price or cost-plus model. Stated assumptions and allowances are carried into the notes so nothing is left to interpretation.
4
Add payment terms and references
Waxe fills in payment instructions, accepted methods and due dates, then references the original estimate and any signed change authorisation in the notes. The owner gets a clear path to pay and a record of what changed since the bid.
5
Review and send
Open the finished invoice in the editor, adjust any line, wording or note, and send. The whole pass takes about five minutes for a few cents. Each invoice stays consistent with the brand and layout of the last one you issued.

What a finished contractor invoice looks like

An on-brand result leads with your firm's header and a clean from-and-bill-to block, then an itemised table where labour, materials, allowances and change orders each read on their own line. The subtotal, tax and a single bold total due sit where an owner expects them. Payment instructions and notes referencing the original estimate close the document, so it looks like paperwork your company issued, not a generic form.

Invoice design direction for a General Contractor business — A design direction for a invoice.

The old invoice template vs. waxTable

You reopen last job's invoice template and overwrite cells, hoping you caught every stale number.

Waxe builds a fresh invoice from the actual scope and line items you delivered this job.

Change orders get crammed into a single vague line because the template has no room for them.

Each change order becomes its own itemised row with description, quantity, unit price and amount.

You re-key allowances and re-check formulas by hand, and a broken subtotal slips through.

Subtotal, tax or discount and the bold total due reconcile automatically to your quoted model.

Fixed-price and cost-plus jobs share one rigid layout that fits neither cleanly.

Line items are structured to match how you priced the job, by phase or by labour and markup.

Payment terms and references to the original estimate are missing, so owners call to ask.

Payment instructions and notes tying back to the estimate and change orders are filled in.

Formatting an invoice by hand burns an evening before you can send it.

A complete, on-brand invoice is ready in about five minutes for a few cents.

Why contractors bill with waxTable

The business upside of faster proposals, shown as papercraft

Invoices in minutes, not an evening

Hand Waxe the scope and line items and a finished invoice is ready in about five minutes. There is no template to fight and no formulas to re-check. You spend the saved time on the next job, not on formatting.

A few cents per document

Each invoice costs a few cents instead of hours of unbilled office time. The arithmetic on labour, materials and allowances is handled for you. You get professional paperwork without paying for it in lost evenings.

Every change order itemised

Change orders and unforeseen conditions get their own clear line items rather than a vague catch-all. The owner sees exactly what shifted from the original scope. That clarity reduces friction and disputes when the bill arrives.

Fixed-price or cost-plus, both clean

Waxe structures line items to match the way you actually priced the job. Fixed-price phases and cost-plus labour with markup each read correctly. Stated assumptions and allowances ride along in the notes so volatility is documented, not argued.

Clear totals that get you paid

One bold total due, plain payment instructions and references to the original estimate leave nothing to question. Owners know what to pay and how to pay it. Fewer follow-up calls means money lands in your account sooner.

2 days → 5 minfrom brief to finished document

a few centsper generated document

11business document types

on-brandcolours, fonts, and logo every time

Questions, answered

What is an AI Invoice Generator for General Contractor billing?

It is waxTable's document workspace, run by the agent Waxe, that builds a contractor invoice from the work you actually delivered. You describe the site scope, line items and allowances, and Waxe assembles the invoice number, dates, bill-to details and an itemised cost table. The total due, applicable tax or discount, and payment instructions are laid out clearly. Notes capture change orders and references to the original estimate. What used to take an evening of formatting takes about five minutes for a few cents.

How does it handle change orders and allowances on an invoice?

Change orders and unforeseen conditions cause friction unless the paperwork shows them clearly, so Waxe gives them their own treatment. Allowances from your cost estimate appear as named line items, and any change order is itemised with its own description, quantity, unit price and amount. The subtotal, tax or discount, and bold total update around them. The notes section references the original scope and any signed change authorisation. The owner sees exactly what shifted and why, line by line.

Does it work for fixed-price and cost-plus jobs?

Yes. Whether you bill a fixed price or cost-plus with allowances, Waxe structures the line items to match how you priced the job. Fixed-price work can be invoiced by phase or milestone, while cost-plus work itemises labour, materials and the agreed markup. Stated assumptions and allowances are carried into the notes so material and labour volatility is documented, not disputed. The subtotal, tax and total due reconcile to the model you actually quoted.

Can the invoice match my contracting company's brand?

Yes. Waxe pulls your company name, logo, colours and contact details into the from-and-bill-to block and the header. The line-item table, totals and payment instructions follow a clean, professional layout an owner can read at a glance. You can adjust wording, line items and notes directly in the editor before sending. The result looks like a document your firm issued, not a generic form. Every invoice you generate stays consistent with the last.

How fast can I send an invoice after a job phase wraps?

Once a phase or job is complete, you hand Waxe the scope and line items and have a finished invoice in about five minutes. There is no template to wrestle, no formula to re-check, and no formatting to babysit. Invoice number, dates, subtotal, tax, total due and payment instructions are filled and aligned. You review, tweak any line, and send. It costs a few cents per document instead of hours of your evening.

Your next invoice, in five minutes

Tell Waxe about the client and get a complete, on-brand invoice to review — the work of two days for a few cents. There is no blank page to start from and nothing to format by hand; you answer a short brief, Waxe does the drafting, and you keep full control of the final document in the editor.

Generate your invoice