BACK OFFICE

THE FINANCE BACK OFFICE FOR SUBCONTRACTORS.

QUICK ANSWER

SPM runs the finance back office for commercial subcontractors and self-performing GCs doing $1M to $12M: bookkeeping coded to the job, payables, billing and pay applications, receivables and retention, and a monthly close with bank reconciliations finished by the 10th. SPM does not run payroll, file taxes, do audit or review work, or handle HR, dispatch and estimating. Nobody at SPM is a CPA.

Contractors use the words back office for two different things. Some mean administration: HR paperwork, dispatch, scheduling and phones. Others mean the money side, everything that happens between a job being worked and the cost and the cash both ending up in the right place. SPM does the second. It is the part of the company that, when it is missing, produces a close that finishes in the middle of the next month and a bank balance nobody can explain.

BY JOSH LUEBKERPublished 2026-09-30Updated 2026-09-30
THE DEFINITION

WHAT IT MEANS.

A construction back office is the set of behind-the-scenes jobs that keep a contractor's money moving and recorded: coding costs to jobs, paying vendors, billing customers, collecting receivables and closing the books each month.

A subcontractor's back office usually starts as one person: an office manager or the owner's spouse who does the bills, the invoices and the bank reconciliation on the side. It works until the company outgrows that person, and it usually breaks without warning, in a month when a pay application goes out late, a vendor is paid twice and the close slips past the 20th.

Outsourcing it changes who does the work and leaves the decisions where they were. The owner still approves what gets paid and what gets billed. What the owner stops doing is coding, chasing and reconciling.

WHAT A BROKEN ONE LOOKS LIKE

THE SIGNS THE BACK OFFICE HAS OUTGROWN ITS PERSON.

01

The books close after the 20th

A report that finishes three weeks into the next month describes a job that has already been decided. Costs coded late are costs nobody could act on while the job was still running.

02

Billing goes out when someone has time

Pay applications sent after the general contractor's cut-off wait a full cycle, and each one costs 30 days of cash you already earned. Late or incomplete billing is the most common back office failure in a contractor's first $5M.

03

Payables and receivables live in two places

Bills sit in an inbox and invoices sit in a spreadsheet, so nobody can say what is owed to vendors, what is owed by customers or what is held in retention on any job.

THE FIVE JOBS

WHAT SPM TAKES OFF YOUR DESK.

1. Bookkeeping coded to the job

A chart of accounts and job cost structure built from how you estimate, with transactions coded weekly so job costs are current and comparable to the bid.

2. Payables coded to job and phase

Vendor and subcontractor bills entered against the job, approved before they post and tied to the commitments behind them.

3. Billing and pay applications

Regular invoicing is part of the monthly work. SPM also builds the schedule of values and drafts each pay application in your inbox. You agree it with the general contractor and your authorized signer signs it, and SPM sends it in officially.

4. Receivables and retention

A weekly review by aging bucket with one person responsible for each follow up call, and retention tracked by job as money you are owed.

5. The monthly close

Books closed and bank reconciliations finished by the 10th, so the numbers reach you while they can still change a decision.

WHAT YOU GET

THE OUTPUTS, NAMED.

Job cost coding current every week, not caught up at month end
Books closed and bank accounts reconciled by the 10th
Payables and receivables tracked by job, retention included
A schedule of values and a pay application drafted for you each cycle, and regular invoicing done
ControlQore set up and managed for you, so the job cost record and the books are one system
$10.7M+
Client AR Recovered Since 2023
48
Active Trade Specializations
60 DAYS
Average Onboarding Time
PRICING

FLAT MONTHLY FEE. NO SURPRISES.

Three tiers, priced by your trailing twelve month revenue. Which one you're in depends on how much of the work you want off your desk. No hourly billing. No payroll. No add-ons.

Last 12 months revenueMonthly fee
Up to $1M$1,900 to $2,900
$1M to $3.5M$2,600 to $3,900
$3.5M to $6.5M$3,800 to $5,700
$6.5M to $9.5M$5,100 to $7,100
$9.5M to $12.5M$6,100 to $8,500
$12.5M to $15.5M$7,400 to $11,000
$15.5M to $18.5M$9,400 to $13,500
$18.5M+Quoted individually

Range reflects the three tiers below. Which one you're in depends on how much of the work you want off your desk. No payroll. No hidden line items.

Core

You stop guessing.

You get the CFO work. Job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a meeting every month that ends in decisions and never in a report.

Your bookkeeper still does the books.

Executive

You stop touching the books.

Everything in Core, and we run the bookkeeping and the controllership as well. Your office stops answering coding questions and stops chasing a reconciliation on the last day of the month.

We do the books. No payroll.

Strategic

Every job shows its margin while it's still running.

Everything in Executive, plus the job costing and WIP platform set up, loaded with your cost codes, and managed for you every month. You never have to learn it.

We do the books, the job costing, and the software. No payroll.

COMMON QUESTIONS

FREQUENTLY ASKED.

It is the work behind the field: coding costs to jobs, paying vendors, billing customers, collecting receivables and closing the books. Some contractors also use the phrase for administration like HR and dispatch. SPM covers the finance side only.
SPM does no payroll, tax preparation, audit or review work, and does not handle HR, dispatch, scheduling or estimating. SPM is not a CPA firm: nobody at SPM is a CPA. Most clients keep a CPA for taxes and SPM works alongside them.
It is more. Bookkeeping is the bottom layer, and billing, receivables and the close sit on top of it. The output feeds a WIP schedule and a cash forecast, so the numbers get used and are not only filed.
Usually not. Many clients keep the person who knows the vendors and the crews and take the coding, billing and reconciling off that person's plate. SPM builds the structure and the calendar, and your office staff keep the work that needs someone in the building.
Yes. SPM works with subcontractors anywhere in the United States and Canada through shared cloud accounts and video calls, so a contractor in Texas, Ohio or Ontario gets the same service as one in Arkansas.
WHAT THIS TIES INTO
Josh Luebker, The Construction CFO
Josh Luebker
FRACTIONAL CFO · THE CONSTRUCTION CFO

Former commercial project manager and master electrician: 150+ projects worth $2.1B combined, from $50,000 to $300M. Now fractional CFO to commercial subcontractors.

WHO RUNS YOUR BACK OFFICE TODAY?

Twenty minutes of questions about who codes your costs, who sends your billing and when the books close. Josh isn't selling and he isn't proposing. If he can help, you'll set a longer second call.

You don't hire a CFO because it's safe, you do it because the real risk isn't having one.
Book a 20 minute call

20 minutes. Nothing gets sold on this call and nothing gets proposed. Josh asks questions to work out whether he can help at all.

OR GET THE SOV AND PAY APPLICATION TEMPLATE. NO CALL NEEDED.