The 20 Seconds That Changed How I Invoice

By Dan Reeve — Working handyman, founder of SMASH Invoices. About Dan →

For the first two years of building SMASH Invoices, I wasn't sure if it would actually work in the field. It worked in theory. It worked in testing. But I hadn't used it at a real job, in real conditions, with a real customer waiting.

Then I did a fly screen job.

The job that proved it

It was a standard residential call-out. Old fly screens — two of them — needed replacing. I measured up, bought the mesh and frames, drove back, fitted them. The whole job was maybe 90 minutes from door to door.

I finished up. Started packing my tools. And instead of getting in the van and telling myself I'd invoice it tonight, I stopped. Pulled out my phone. Hit the button. Spoke for about 20 seconds.

"Replaced two fly screens, new mesh and aluminium frames. Labour one hour. Two fly screen kits."

The quote appeared on screen. My labour rate. The materials priced automatically — the mesh, the frames. GST calculated. My business name and ABN at the top. A total at the bottom that matched what I'd intended to charge.

I hit send.

The customer received a portal link to their phone before I'd finished putting the last tool in the bag.

They paid the same day.

Why that job was different

I'd done hundreds of jobs by then. Most of them invoiced correctly — eventually. Some of them not at all.

The Discovery Parks job. The real estate job. The ones that slipped away because there was always going to be a better time to do the admin.

The fly screen job was different because the gap closed to zero.

There was no "I'll do it tonight." There was no pile building up for Sunday. The job was done and the invoice was sent in the same three-minute window. The customer had a professional, itemised, GST-compliant quote before I reversed out of the driveway.

That was the moment I knew it was real. Not the code. Not the interface. Not the testing. That job.

What 20 seconds actually means

Twenty seconds is nothing. It's the time between finishing a job and getting in the van. It's the time between packing the last tool and starting the engine.

Before SMASH, that 20 seconds was dead time. Transition time. Time that led to a van drive, a busy afternoon, a full evening, a Sunday pile, and eventually a $200 job that never got invoiced.

After SMASH, that 20 seconds is the invoice. The whole thing. Spoken, built, sent, done.

The estimate from that fly screen job also became something else I hadn't expected: my shopping list for the next job. The materials were already listed. The quantities were already noted. I knew exactly what I'd used and how long it had taken.

I'd built an invoicing app and accidentally made a job management tool at the same time.

"First job I used it properly I was doing a gutter clean. Spoke while I was coiling the pressure washer hose. Customer had paid by the time I got to my next job. I've done every invoice on the spot ever since." — Michael D., Handyman, Sydney NSW [PLACEHOLDER]

What the fly screen job cost before SMASH existed

To understand what that 20-second moment actually means, you have to understand what the same job looked like before.

Finish job. Drive home. Cup of tea. Kids. Dinner. I'll do it after. After comes and the laptop is right there and the invoice is right there in my head and it still doesn't happen. Because tired.

Sunday. Google Docs. Opening balance. Wait — what were the materials? I know there were two kits. Were they from Bunnings or Home Hardware? What did I pay? I'll round it. Call it $40. The invoice goes out Monday. Customer pays Wednesday. Two working weeks after the job was done.

That was the baseline. That was normal. Two weeks between doing the work and having the money. Two weeks of carrying the cost of materials. Two weeks of mental overhead on a $200 job.

Twenty seconds changed all of that.

What changed after the fly screen job

I went back to the driveway the next day and did the same thing on a tap replacement job. And the day after that on a fence repair. Within a week I was invoicing every job before I left the driveway.

I stopped having a Sunday pile. I stopped making $50 errors from memory. I stopped forgetting which jobs had and hadn't been invoiced. My cash flow changed. My stress level changed. My Sundays changed.

The fly screen job is 90 minutes of work. The invoice is 20 seconds. That ratio — 90 minutes of skilled trade work to 20 seconds of admin — is what SMASH was built to achieve. Not approximately. Exactly.

📱 Watch: The Fly Screen Job Dan invoices a real residential job in under 20 seconds — voice to sent, before leaving the driveway. Watch on YouTube → | Watch on Instagram →

Frequently asked questions

How long does it actually take to invoice a job using SMASH Invoices? For a repeat job with saved services in your personal catalog, under 30 seconds from speaking to invoice sent. For a new job with multiple materials, 45–60 seconds. The 20-second figure is realistic for jobs the app has seen before and applies to most standard residential trade call-outs.

Do I need to set anything up before using SMASH on a real job? Initial setup takes approximately 10 minutes. You upload 1–3 existing invoices — any format — and the app learns your rates automatically. After that, you're ready to invoice any job by voice. No additional configuration is required for standard services.

What happens if I describe the job wrong? You review the generated invoice before sending. If a line item is incorrect, tap to edit. The correction takes a few seconds and updates your personal catalog for future accuracy. The review step is designed to be a 5-second glance, not a full check — the invoice is almost always right for standard jobs.

Does the invoice look professional when the customer receives it? Yes. The customer receives a portal link to a fully formatted invoice with your business name, logo (if added), ABN, itemised line items, GST breakdown, total, and payment button. The format is identical to a typed invoice from any professional invoicing software.

Can I invoice and send before I leave the job site? Yes. This is the core design principle of SMASH Invoices. The entire workflow — voice description, review, send — is designed to be completed before the user leaves the job location. The customer receives the invoice link within seconds of it being sent.

SMASH Invoices — Just talk. SMASH does the rest. The first invoice took 20 seconds. Yours will too. Start Free →