By Anton Mar, BillGrid

Picture a Friday afternoon. The crew has finished the job, the tools are packed and the next week’s work is lined up. Back at the office, someone opens the invoice.

The job number is in one email. A receipt is on somebody’s phone. There was an extra visit on Tuesday, but did the customer approve it? And who has the purchase order?

The work is finished. The scavenger hunt is just getting started.

That gap is worth a little attention. The person who knows what happened on site has information the person sending the bill needs. In a small business, both people may be you, several days apart.

A short handoff can save some retracing of steps: identify the job, sort out what’s ready to bill and decide who sends it. The aim is to be able to open a job record and prepare the bill without rereading a month’s messages. Here’s a note you can copy into the tools you already use.

1. Make the job easy to recognize

“The Smith job” may be perfectly clear to the crew. It gets less helpful when Smith has three locations and two jobs under way.

Put the customer, site and job reference together where the bill will be prepared. Include the purchase order if the customer requires one. Add the billing period or milestone, the person who can confirm the work, and where the invoice needs to go.

That last detail deserves a check. The person who asked for the work may be different from the person processing the bill. An invoice sent to a familiar contact can still miss the required billing inbox or portal.

Use what you already have. If the purchase order is in the job record, carry it through. If the billing instructions were agreed at setup, keep them with the job. Ask people to fill the gaps, rather than fill out the same information again.

2. Give the extras somewhere to go

Most of the original scope may be straightforward. Then there is the return visit, the extra material or the receipt that arrived after the rest of the paperwork.

Keep three things clear: what’s ready to bill, what’s already been billed and what still needs a decision. A note saying “check extras” leaves the next person with the whole puzzle. “Tuesday return visit: approval pending; Alex to confirm with customer” gives them a next step.

A time entry needs context, too. Hours recorded against a fixed-price job may support the agreed price without becoming another charge. On an hourly job, dates, descriptions and agreed rates need to travel with the hours. For a receipt, make clear which job it belongs to and whether the cost is already included or billed separately under the agreement.

Take a simple, hypothetical example. A service contractor is preparing a bill with:

• $2,400 for a completed fixed-price milestone.
• $180 for an approved extra visit.
• $120 for another extra that is still awaiting a decision.
• Technician hours recorded against the fixed-price work.

In this example, $2,580 is ready for the bill, before any applicable tax or agreed adjustments. The technician hours aren’t charged again on top of the fixed price. The $120 gets a separate follow-up note with a person responsible for resolving it, so it doesn’t quietly disappear.

Now suppose this customer’s instructions require a purchase order, and the reference is missing. Flag that before sending: “PO needed; Alex to obtain from customer.” Once Alex adds it to the job record, the invoice can be checked and submitted through the agreed route.

The arithmetic was the easy part. The useful work was separating the approved charges, keeping the unresolved extra visible and catching the missing reference while the bill was still in the office. A missing reference can leave a much larger bill waiting.

3. Put a name next to “send”

“Ready to bill” is a useful status. It still needs someone to press send.

Name the person preparing the invoice, anyone who needs to check it, and when it should go out. Use the timing and format agreed for that job, including any scheduled payment application. The checklist should help assemble what’s needed for that process.

After sending, record the invoice number, date and destination. Keep the submission receipt or portal reference if there is one. If the bill comes back, add the reason and who is fixing it. “Sent” and “needs a correction” call for different work; it helps to tell them apart at a glance.

A billing note you can copy

Keep this beside the job’s existing records. Link to the details instead of copying every receipt and message into it.

Job: Customer, site/project, job or PO reference.
Send to: Billing contact, inbox or portal; required supporting documents.
Bill this time: Completed work being billed, agreed amounts or rates, and links to supporting records.
Already covered: Work included in the price or billed previously.
Still open: Question, person responsible and next action.
Send: Person responsible and date; add the invoice number and submission receipt once sent.

For the example above, the middle of that note could read:

Bill this time: $2,400 milestone + $180 approved visit = $2,580 before applicable tax or adjustments; approval saved with job.
Already covered: Technician hours included in the $2,400 fixed price.
Still open: $120 extra awaiting approval; Alex to confirm with customer. PO missing; Alex to obtain before submission.
Send: Jordan to review and send after the PO is recorded, at the agreed billing date.

The open-items line does two jobs: it keeps an unanswered question from being mistaken for an approved charge, and it keeps that possible charge from being forgotten. It also tells the next person exactly what to do. If you run the business alone, put your own name there; the next person may be you on Monday.

Start with the next few bills

Pick one finished job that hasn’t been billed and try filling in the note. Leave unknowns visible. “PO missing” is useful information; a blank field is easy to overlook.

Give each gap a next action, then use the note on the next few jobs. If the same question keeps coming up, move that check earlier. Get the billing reference at setup. Save approval for an extra against the job when it arrives. Connect the receipt to the work while someone still remembers the purchase.

At the end of the cycle, look at the finished jobs still waiting to be billed and add up the amounts otherwise ready for submission. That gives you a concrete place to focus. A missing PO holding up a $2,580 bill deserves a clearer next action than “do paperwork.”

Software can help carry those records through to billing. A sensible first test is whether it saves you from typing or hunting for information you’ve already recorded.

By the next Friday, see which questions you no longer have to ask. That is a small improvement you can feel: fewer loose ends between a finished job and an invoice on its way.

About the author

Anton Mar is part of the BillGrid team, working to make the steps between doing client work and getting paid less of a chore. BillGrid connects projects, tasks, time and expenses with estimates, invoices, payments and file delivery. The aim is to help businesses spend less time entering the same information and more time running their business.