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TRADE SERVICE · INDUSTRIAL & ENERGY CLUSTER

FRACTIONAL CFO FOR TANK AND VESSEL CONTRACTORS.

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We manage the finance side for tank and vessel subcontractors doing $1M to $12M. You get job costing aligned to the way you estimate, a 13 week cash flow forecast, monthly WIP, and a CFO in the room every month. Pricing starts at $1,900 per month.

Tank and vessel work splits along its own standards, so we split the books the same way. API 650 governs new welded tank construction and has project economics. API 653 mandates in-service inspection intervals and creates a repair market, triggered by condition, that recurs. One blended P&L misprices both. We bill when the documentation is complete and plan the hydrotest as a logistics event. Sourcing, holding and disposing of a structure's volume of test water comes between substantial completion and the check. Then we price turnaround work as its own class. Repair and alteration inside an owner outage uses premium-time labor by design, and a late unit release uses up the window.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-11-02
WHERE TANK AND VESSEL LOSES MONEY

THE THREE THINGS THAT DRAIN THE CASH.

LEAK 01

The Two-Code Book

API 650 new-build has project economics. API 653 inspection-repair has recurring demand, triggered by tank condition. One blended P&L misprices both, and the project side borrows its stability from the recurring side.

LEAK 02

The Hydro Gate

Qualifications, weld maps, NDE and a structure full of test water come between substantial completion and the check. Bill when the documentation is complete, and plan the hydro as a logistics event. That's how this trade collects.

LEAK 03

The Window Premium

Turnaround work gets packed into owner outages. Premium shifts are the plan, and a late unit release costs you. Price the window in the bid and document the standby. Somebody pays for the outage clock.

THE MATH

FROM 8% TO 11.5% NET.

At $1M to $5M, the average tank and vessel sub earns 23% gross margin and spends 15% of revenue on overhead. What's left is 8% net profit before taxes (Run On CFOS Trade Benchmark Reference). The CFOS target is 11.5% before taxes. That is the tank and vessel average plus 3.5 points, and never below 10%. The book CONTROL's 12% is the rule of thumb across trades. It is not the industry average.

Two changes get you to the target. Overhead comes down 1 point to 14%, and gross margin comes up 2.5 points to 25.5%, so 25.5 minus 14 leaves 11.5. The gross margin points come from the three problems above, once you price them and bill for them. On a $3M year, every point is $30,000.

HOW SPM FIXES IT

WHAT WE CHANGE.

These are the tank and vessel problems we put a number on first. Each one gets its own cost code, its own line on the schedule of values or its own line in the 13 week cash forecast, so you can read it in the monthly meeting while the job is still open.

GAP CALCULATOR

THE TANK AND VESSEL GAP CALCULATOR. AVERAGE AGAINST TARGET, IN DOLLARS.

Put in your annual revenue. You get gross margin, overhead and net profit for tank and vessel contractors your size: the industry average and the CFOS target, in dollars a year. Nothing you type leaves this page.

Another trade too? The gap calculator for every trade.

Your figures show here once you put in your revenue.

Book a 20 minute call

Why aim for the target. An average is the middle of the pack: about half of companies do worse. And about 6 in 10 construction businesses close within 10 years (U.S. Bureau of Labor Statistics: about 40 percent of construction businesses opened in 2013 were still open in 2023). So the business in the middle is one of the ones that close. On those numbers, average is a business that closes within 10 years. That is why the CFOS target is a requirement.

Want your own numbers against these? The Financial Health Snapshot builds a CEO Report from your last 12 months and sets every figure against your trade.

PRICING

YOU PAY ONE FLAT MONTHLY FEE.

The fee is set by your trailing 12 month revenue. We don't bill by the hour and we don't do payroll. The one-time onboarding fee is in the table too.

Type a number and your band and its prices show here. The full table is below.

Built for subs doing $1M to $12M. Above $12.5M we quote.

Last 12 months revenueCoreStrategicPlatinumOne-time onboarding
Under $1M$1,900$3,100$3,300$2,500
$1M to $3.5M$2,600$4,100$5,300$4,500
$3.5M to $6.5M$3,800$5,900$8,300$6,000
$6.5M to $9.5M$5,100$7,600$11,800$7,500
$9.5M to $12.5M$6,100$8,900$14,900$9,000
Above $12.5MQuotedQuotedQuotedQuoted

The onboarding fee covers migrating your books back to the start of your last taxable year and getting you fully operational in 60 days. It's billed once, with your first invoice. It's the same for all three tiers, and it moves with your revenue band. Your first month is prorated, and your monthly engagement starts on the first of the first full month.

Just want the setup? Onboarding only is the same onboarding work with no monthly service after it, one time, at the onboarding fee plus $2,000. Start a monthly engagement later and $2,000 counts toward it. It starts at $4,500, and the price for every band is on the pricing page.

The three tier columns are the whole price. Which one fits depends on how much of the work you want off your desk. No payroll. No hidden line items. The onboarding fee is right here in the table.

  • Online software only: QuickBooks, Sage, Viewpoint and similar. No VPN or hosted desktop.
  • Not in any tier: payroll, pay applications, collections on receivables.
  • Pricing valid through 2027.

What Core, Strategic and Platinum each include is on the pricing page.

COMMON QUESTIONS

FREQUENTLY ASKED.

Tank/vessel contractors at $1M to $5M net about 8 percent on the SPM 48-trade benchmark dataset, rising to 15 percent by $25M to $50M; the CFOS net profit target is 11.5 percent before taxes at $1M to $5M, the trade average plus 3.5 points. The curve is strong at the top because code work prices its qualifications. The losses come from blended 650/653 books and windows priced at straight time. Every net profit figure here is gross margin minus overhead, stated before taxes, the same basis CFMA reports net income on.

See the full benchmarks for every revenue band on Run On CFOS.

Usually it needs the CFO work, and a full time CFO is more than it needs. At $5M to $10M, tank and vessel subs average 10% net profit before taxes (Run On CFOS Trade Benchmark Reference), and the CFOS target is 13.5%. On $5M of revenue every point is $50,000, so that difference is worth $175,000 a year. A full time CFO costs $150,000 or more in salary alone. SPM's published price for $3.5M to $6.5M is $3,800 a month for Core to $8,300 for Platinum.

Because they're different businesses. API 650 new-build has project economics, with fab, erection and hydro gates. API 653's mandated inspection intervals create repair demand triggered by tank condition, and it recurs like other inspection-based markets. Separate P&Ls show which side pays for the shop, and you price each one honestly.

The dossier and the hydro. Welder qualifications are current under the six-month rule. Weld maps and NDE records are complete. The hydrostatic test means filling the structure with water, with sourcing, hold and disposal all scheduled. Bill when the documentation is complete, and put the hydro on the cash forecast as its own logistics event.

By the window. Premium-shift labor is the baseline. Price standby for a late unit release. Know the acceleration terms before you sign. Outage schedules pack every trade into the same days, and the contractor who priced that keeps the margin.

As a daily compliance class: entry permits, attendants, atmospheric monitoring, ventilation and rescue provisions on every internal day. Coating and lining cure windows control the schedule. Price it per entry-day and it's a cost. Absorb it and it's your margin.

Sulphur Prairie Management, operating as SPM The Construction CFO, publishes the 48-trade benchmark dataset these numbers come from. SPM's deepest specialization is 24 core commercial trades, and SPM works with tank/vessel contractors who want the same financial system: onboarding, clean books, a maintained 13-week cash flow forecast, and monthly health reviews, with job costing simplified to what the business depends on. The full 48-trade benchmark reference exists so owners in every trade can measure against real numbers.

Three tiers, and which one you are in depends on how much of the work you want off your desk. On Core we build your plan every month and your team does the work: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. On Strategic we build the plan, track it and adjust it every month: our team does the bookkeeping and the bank reconciliations, and the job costing and WIP software is set up and managed for you, on your own online software or ours. On Platinum we manage the money side for you every week: our team handles your bills and receivables the way an in-house controller would, and you approve every payment. We don't do payroll.

Sixty days. We migrate your books back to the start of your last taxable year and build your job costing structure from scratch, and on Strategic and Platinum we set up the job costing and WIP software too. You're fully up and working in two months. The onboarding fee is one time, the same for every tier, and set by your revenue band.

ControlQore is the job costing and WIP platform we use on the Strategic and Platinum tiers. It's built for contractors, costs less than the older tools, and has AI built in. We set it up and manage it, so you do not have to learn it. Core is the CFO work only, so it does not include the software.

A bookkeeper records what happened. We tell you what it means and what to do about it. We align job costing to your estimates, track WIP monthly, and hold a monthly meeting where you decide what to fix and who fixes it.
$10.7M+
Client AR Recovered Since 2023
48
Active Trade Specializations
60 DAYS
Average Onboarding Time

How tank and vessel CFO firms compare: the tank and vessel firm study, with every score and its source.

OTHER MEP AND SYSTEMS TRADES

Tank and Vessel is one of 14 trades in the MEP and systems family on our CFO for subcontractors page. Nearby trades with their own page:

WHAT THIS TIES INTO
Josh Luebker, SPM The Construction CFO
Josh Luebker
FRACTIONAL CFO · SPM THE CONSTRUCTION CFO

Josh Luebker is a master electrician turned construction CFO, president of SPM The Construction CFO and author of CONTROL: C.F.O.S. Construction Financial Operating System.

THE CHEAPER OPTION WORKS AND TAKES LONGER.

If price comes first, plenty of CFOs and bookkeepers can get your construction company results. It often takes the better part of a year.

If you're a trade contractor, a sub or a GC who wins work, keeps the crews busy and still can't figure out where the money goes, we get in the weeds with you. We change the processes that cost you money on every job, build the ones you're missing and give you the formula, so you see results in 60 to 90 days.

Our guarantee holds when you come to every meeting, do the process and keep a strong pipeline of work. We can fix how your work pays. We can't fix having no work.

DO YOU KNOW YOUR TRUE MARGIN ON TANK AND VESSEL WORK?

Twenty minutes of questions about how you price tank and vessel work, what your jobs come in at once they close, and what keeps coming back to your desk. Nothing gets sold on that call and nothing gets proposed. If Josh 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. No pitch or proposal. Josh asks questions to find out if he can help.

OR START WITH THE WORKBOOKS. NO CALL NEEDED.