14 shifts · 4 electricians · one work week
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The invoice lands. Your customer reads four electricians, one week, and a total — and cannot reconstruct a single hour of it. They do not conclude they are wrong. They conclude they are being padded.
That is not a pricing problem. The charge was fair. The explanation was missing.
Below is the explanation: a complete billing packet for a sample commercial T&M job, followed by a breakdown of what each part of it does in an argument. Copy the format. It works in a spreadsheet if that is what you have.
Sample document
Northgate Electric, LLC, Halstead Construction Group (GC), the job, and the crew are invented. The format and the arithmetic are real. This is not anyone's actual job or actual customer.
Sample document · Illustrative data, not a real customer · fieldtimesheet.com/sample-billing-packet
14 shifts · 4 electricians · one work week
The breakdown
Here is one row from the packet above. Every point below refers back to it, or to what the rest of the page does around it.
Thu, Jun 11 · 7:02 AM – 3:48 PM
Danny Alvarez
Pulled and terminated circuits 12-18, second-floor east wing.
Strip that row down to what most timesheets actually carry and you are left with 8.77 hrs. A customer cannot argue with 8.77 hours. They cannot agree with it either — there is nothing in it to agree with. So they push back on the total, because the total is the only thing on the page they can see.
The description is the entire difference. Circuits 12-18 is checkable. Second-floor east wing is somewhere they can go stand. A charge the customer can picture stops being a number they negotiate.
One line per shift is enough. Name the thing and name where it is. That is the whole standard, and it has to stay that small — a note that costs an electrician two minutes at the end of a ten-hour day will be blank.
7:02 AM to 3:48 PM is a record. 8.5 hrs is a claim.
Rounded numbers are the fastest way to make an honest invoice look assembled after the fact. Everyone in construction knows what 8.00 hours every day for a week means: somebody filled in a timesheet on Friday from memory. Odd times read as a clock, because that is what they are.
It protects you in the other direction too. The Wednesday foreman line runs to 4:14 PM, about three quarters of an hour past when the rest of the crew left. That time is billable, it is on the document, and nobody had to remember it on Friday.
The question a GC actually asks is who was even here Tuesday — usually because their superintendent does not remember, not because they think you are lying.
A name answers it in one second. It also lets them check you against their own gate log or sign-in sheet, which is the fastest way for a skeptical customer to stop being skeptical: they verify one line themselves, and stop auditing the rest.
Four names cover fourteen shifts here, and one of them is a 4.75-hour Tuesday. Showing a short day builds more credibility than a page of identical eights.
Three rates appear on this packet: $110/hr, $95/hr, $62/hr. Foreman, journeyman, apprentice. Rates that vary by classification tell the customer they are paying for the person who actually did the work, instead of a blended number that quietly bills an apprentice as a journeyman.
What is not on this page matters just as much. There is no labor cost, no hourly wage, and no margin anywhere on it. What you pay your electricians is nobody's business but yours, and a document that leaks it will be used against you on the next negotiation and the next bid.
So check the report you are actually sending. If it has a Cost column or a Total Labor Cost line, it is an internal job-costing document. Keep it. Do not send it.
$9,892.47 is the last thing on this page, sitting under 108.83 hours of work that has already been accounted for.
Put the total first and it becomes the only thing being evaluated. The reader has no basis for it yet, so it arrives as an assertion. Put it last and it arrives as a sum. By the time your customer reaches it they have read fourteen lines they had no reason to dispute, and the total inherits that.
This is why a billing packet is not an invoice. The invoice states the amount. The packet earns it.
Every line here is marked On site, meaning the clock-in was confirmed at the jobsite. That is corroboration a customer can accept: the hours were logged where the work happened, not from a truck across town.
It stops there on purpose. No map, no route, no minute-by-minute trail. Location is checked once, at clock-in, and never again.
That distinction is not a privacy footnote, it is the reason the document exists. Your crew is being backed up by this record, not followed by it — and a crew that believes that is a crew that keeps writing the line in column three.
The habit
The document only does its job if it arrives before the question. Six rules, in order of how much argument they save.
Attach the packet to the same email as the invoice, the same day. A packet that shows up three weeks later, after a phone call, reads as a document built to win an argument. The identical packet sent up front reads as how you do business.
The PM or the owner approves the money. The superintendent saw the work. Copying the super means a question gets settled by someone who was there, before it reaches the person holding the check.
If the work ran on a change order or a T&M authorization, that number belongs on the packet header and the same number belongs on the invoice line. Matching numbers turn two documents into one story. Mismatched numbers are what a dispute is made of.
A GC who has already read four weekly packets does not audit the fifth invoice. Weekly also means corrections happen while people still remember the day, instead of at final billing when the full amount is sitting on the table.
Keep two documents: one internal labor-cost report for your own job costing, and one customer packet with bill rates only. Different audiences, and only one of them gets to see what you pay your crew.
If your super signs a daily ticket, keep it and make sure it agrees with the packet. Two records that match are very hard to argue with. Two that do not are worse than having one.
It is the backup document that accompanies a time-and-materials invoice. It lists every shift billed to the job — the date, the clock-in and clock-out times, who worked, what they did, the hours, the bill rate, and the amount — and totals it at the bottom. The invoice states the amount owed; the packet explains it. Most T&M invoice disputes are not disagreements about price. They are the customer being unable to reconstruct the charge.
Six things on every line: the date, the start and end times, the worker's name, one specific sentence about what was done, the hours, and the bill rate that produced the amount. At the top: the job, the customer, the date range covered, and the change order or work authorization number the work was performed under. At the bottom, last: the total.
No. Send the bill rate, which is what the customer is charged per hour, and never the cost rate, which is what you pay the electrician. A report with a Cost column or a Total Labor Cost line is an internal job-costing document. Emailing it to a customer discloses your labor cost and your margin, and it will come back at you on the next negotiation and the next bid.
One line per shift, specific enough that the customer can picture it and check it. 'Pulled and terminated circuits 12-18, second-floor east wing' works. 'Electrical work' does not. Name the thing and name where it is. Detail past one line does not help you and it slows the crew down, which is the real constraint — a note that takes an electrician two minutes at the end of a long day will not get written.
No. The format is what does the work, and a spreadsheet or a printed daily field ticket will carry it fine. The reason contractors eventually move off paper is not the document, it is the collection: getting one specific line out of four electricians, five days a week, without chasing anybody. If a spreadsheet is working for you, keep it.
With the invoice, in the same email, the same day. On jobs running longer than two weeks, send it weekly rather than saving it all for final billing. Corrections are cheap while people still remember the day and expensive once the whole amount is on the table.
Ask for one line, not a report, and tell them why. 'Clock in so I can check on you' gets resistance, and it should. 'Write down what you did so nobody can argue the hours away' puts the crew on the same side of the invoice as you are. The note is what protects the hours they actually worked, and that is a reason a field electrician has to cooperate with.
Take it further
Blank versions of the forms behind this packet — labor backup sheet, daily field report, change-order log, and a T&M work authorization. Free, no email required.
Get the templatesThe longer playbook: what a defensible T&M invoice contains, the four questions customers actually ask, and how to set expectations at the estimate so the invoice is never a surprise.
Read the playbookWhere this document comes from
The packet above is what FieldTimesheet prints. The crew answers one question at clock-out — what did you work on — and that answer becomes the What Was Done column, while the bill rate on the job turns the hours into an amount. None of the advice on this page depends on that. The format is the point, and it works on paper. Pricing is public if you want to know what the automatic version costs.