It's the third week of a bath remodel. You've floated the tile, the vanity, the tub, the valve, and ten days of labor, and your checking account looks like the job is losing money. It isn't. You just haven't billed anything yet.
That's the trap on any job that runs longer than a few days. One invoice at the end means you're the bank. You cover materials and payroll for a month, then wait another two or three weeks for the check, and in the gap the next job wants a deposit you don't have sitting around.
There's a cleaner way to run it, and it's old news in commercial work: bill the draw when you hit the milestone, not when the whole job wraps. Tear-off done, that draw goes out. Rough-in passes, that draw goes out. The money moves while the work moves, and the final bill stops being a scary number the customer goes quiet on.
What a draw actually is
A draw is a partial payment tied to a chunk of work you've finished, agreed on before the job starts. Instead of one bill for $18,000 at the end, you've got four bills of about $4,500 that go out as you clear each phase. Same total, spread across the weeks you're actually spending money.
Commercial GCs have billed this way forever because nobody floats a six figure job out of their own pocket. The same math works on a reroof or a panel upgrade. You're carrying real cost for weeks, so you should be collecting as you go.
The customer usually likes it better too. A $4,500 bill after they watched you haul off the old roof feels fair. An $18,000 bill three weeks after the last guy drove away feels like a gut punch, even when every line on it is honest.
Tie the draw to the schedule, not your memory
Here's where most owners lose the money. They mean to bill at rough-in, but rough-in passes on a Thursday, they're already on the next job, and the invoice doesn't go out until they catch up on paperwork Sunday night. Three times out of ten it slips a week. Once in a while it never goes out at all and just gets rolled into the final.
The fix is to trigger the invoice off your schedule instead of your head. You already track phases somewhere, a calendar, a job app, a whiteboard in the shop. Each phase gets a dollar amount attached to it. When you mark the phase done, that's the signal to bill, not a note you hope to remember later.
Done right, marking "rough-in passed" on your phone from the driveway kicks a draft invoice to your email or your bookkeeper. You glance at it, hit send, and you're billed before you've pulled off the street.
Break the job into milestones before you start
You can't bill phases you never defined, so the setup happens at the quote, not halfway through. Split the job into three to five chunks a customer can see with their own eyes, and put a number on each one.
A few that map to real work:
- Reroof: deposit at contract, draw at tear-off complete, draw at dry-in and flashing, balance at final cleanup and photos.
- Bath remodel: deposit for materials, draw at demo done, draw at rough-in passed, draw at tile and fixtures set, balance at the punch list.
- Service upgrade: deposit at contract, draw when the new panel and meter are set, balance after the utility reconnect and inspection sign-off.
- Multi-unit swap (say a triple-decker getting all three heating systems): bill per unit as each one's done, not all three at the end.
Tie each draw to something physical and verifiable. "Rough-in passed" has an inspection date on it. "50% complete" is an argument waiting to happen. Pick triggers nobody can dispute.
The invoice has to go out the same day
A draw billed three days late is just a smaller version of the original problem. The whole point is speed, so the invoice needs to leave the day you hit the phase, while the customer is still looking at fresh progress.
This is the part worth automating. A simple setup watches for the phase to get marked done and drafts the invoice from a template you already built, right amount, right line item, customer's info filled in. You approve it. It sends. No digging back through the quote to remember what the rough-in draw was supposed to be.
Payment terms matter here too. Put "due on receipt" or net 7 on draw invoices, not net 30. You're billing for work that's already standing in front of them, so there's no reason to hand back a month of float you just worked to collect.
Be honest about what this won't fix
Milestone billing keeps cash moving. It doesn't make a slow payer fast. If somebody's going to drag their feet at net 30, they'll drag at phase three too, and now you've at least caught three phases worth of money before it got bad instead of finding out at the very end.
It also doesn't replace a deposit. You still want material money up front on anything where you're fronting a big order, because the first draw might be two weeks out and the supply house wants paying now.
Bigger jobs bring their own paperwork too. Draws don't sort out lien rights, retainage, or a contract that actually holds up, and that's a conversation with whoever handles your contracts. The billing rhythm is one piece, not the whole thing.
Worth doing this week
You don't need software to start. You need your phases defined and a habit of billing the day you hit them.
- Pull your next job that runs longer than a week. Write down three to five milestones with a dollar amount on each, before it starts.
- Put "due on receipt" or net 7 on the draw invoices, and save it as a reusable template so you're not rebuilding it every time.
- Pick the trigger for each draw, something verifiable like an inspection date or a unit finished, not a percentage you'd have to argue.
- Next time you mark a phase done, send that invoice before you leave the site. Prove to yourself it moves the cash.
- If it sticks and the remembering is the hard part, wire it to your schedule so the draft invoice fires itself off the calendar.
Set it up once and every long job pays you along the way instead of all at the scary end. If connecting your schedule to your invoicing is the piece you'd rather hand off, that's the kind of plumbing we set up for Massachusetts trades every day.