Invoicing for drywall contractors

Invoice Koi is an invoice app for drywall contractors, so the price you worked out on site is an invoice before the van is loaded.

Make an invoice free

The iPhone app is coming to the App Store.

An illustration of a taping knife, a mud pan, a mixing paddle, a bucket and a corner bead, with a koi swimming among them.

It is a trade that prices fast and bills slowly. The quote is worked out on a wall in two minutes, the job takes two days, and the invoice waits a week because writing it means sitting down with a laptop you do not own.

01On the document

What drywall contractors
put on an invoice.

Save these items with your own rates. Tap to add them to an invoice, with the unit, price and totals filled in.

Line	Unit
Hang drywall	sq ft
Tape and finish, level 4	sq ft
Texture, spray	sq ft
Patch and repair	hrs
Board, mud and tape	job
Haul-away and cleanup	job

Set your own prices. The app's starter rates are placeholders. To bill one job today with nothing installed, the free drywall contractor invoice template opens in your browser with these lines on it.

A job, grouped Subtotals per section

HANG

Hang drywall$1,120

Board, mud and tape$640

Subtotal$1,760

FINISH

Tape and finish, level 4$980

Texture, spray$520

Subtotal$1,500

CLEAN UP

Haul-away and cleanup$260

Subtotal$260

Total$3,520

Grouped line items work on all nine templates.

A photograph of a drywall contractor taping a seam on a newly hung wall, mud pan and knife set down, phone in one hand.

02Why drywall contractors use it

Three things that
save the evening.

Written on site, not on a laptop

The whole document is built on the phone, with no signal and no account, so the invoice goes out the day the job finishes.

Square-foot rates you set once

Hanging, taping and texture each with their own sq ft rate. Type the area and the line fills itself.

Tax worked out per line

Per-line tax and discounts, and reports that tell you what you owe by period without a spreadsheet.

03 · Questions

Asked by drywall contractors.

Can I write the invoice on my phone on site?

That is what it is for. Pick the client, tap your rates, send the PDF, with no signal if that is what the site has.

Can I price by the square foot?

Yes. Every price-book line carries its own unit, so sq ft and hourly labor sit on the same invoice.

What does it cost?

A subscription for sending: an annual plan or a weekly one, with a free trial where your store offers one. Setting up your business and writing drafts are free. Payments collected through Koi cost 0.35% with a subscription, or 0.7% + $0.10 without one, plus Stripe fees.

Weighing up apps? Invoice Koi vs Joist and Invoice Koi vs Contractor+ set the features side by side, including where they win. Or see all 12 comparisons.