Your firm just won a AED 4.2 million fit-out contract. The client pays 10% mobilisation up front, then certified progress payments each month, with 10% held as retention until the defects liability period ends. You mobilise. You pay the subcontractor. You buy the materials. Three months in, the project looks 55% complete on site, but your bank balance says something different, and you cannot tell whether the job is making money or quietly bleeding it.
That gap is where most contracting firms lose control. Not on the tender. Not on the build. In the finance function that sits between them.
Project cost control in construction is a finance discipline as much as a site discipline. The margin you priced at tender survives only if someone tracks committed costs against the budget, flags overruns before they compound, times billing to protect cash, and keeps the tax exposure from ambushing you at year end. That someone is a CFO. This guide walks through what CFO services for construction firms in the UAE actually do and where the money leaks on a typical project.
What is new for UAE contractors right now: The regulatory floor under UAE construction finance has shifted twice in the last two years, and both changes hit cost control directly.
Corporate tax is now live. Under Federal Decree-Law No. 47 of 2022, taxable profit above AED 375,000 is taxed at 9%, with the first AED 375,000 taxed at 0%. Small Business Relief lets resident firms with revenue under AED 3 million elect zero taxable income, but that relief expires for tax periods ending after 31 December 2026. For a contractor scaling past AED 3 million in turnover, the 9% band starts biting, and every non-deductible cost or mistimed provision raises the bill.
Electronic invoicing is arriving on a phased schedule. A voluntary pilot opens in July 2026, followed by mandatory compliance for businesses with revenue above AED 50 million by January 2027, with smaller firms following in later phases. Cabinet Decision No. 106 of 2025 sets the penalties, including AED 5,000 per month for failing to implement the system and AED 100 for each invoice not transmitted correctly. For contractors, this matters more than for most sectors, because construction invoices carry retention, advances, and subcontractor billing that all have to be structured correctly in the e-invoice format.
JaZaa works with contracting and construction firms across the UAE on exactly this layer of the business, from job costing systems and WIP reporting to VAT timing, corporate tax provisioning, and e-invoicing readiness. The work is practical and hands on, focused on the numbers that decide whether a project finishes on margin.
Who is writing this: JaZaa is a UAE based accounting and tax advisory firm. The team works with owner managed contracting businesses, fit-out companies, MEP subcontractors, and civil firms on the finance systems behind project delivery. Our focus is the operating detail of construction finance in the UAE, including progress billing, retention accounting, cost-to-complete forecasting, and the tax treatment of subcontractor and project costs. You can read more about the team and how we work on our more about the JaZaa team.
What this guidance covers and what it does not: This article explains how a CFO function supports project cost control for UAE construction and contracting firms. It covers job costing, WIP reporting, billing and retention mechanics, cash flow forecasting, and the tax and compliance layer.
It does not replace advice tailored to your specific contracts, entity structure, or free zone status. VAT and corporate tax outcomes depend on the exact terms of each contract and the facts of each transaction. Before acting on any tax or accounting point below, speak with a qualified advisor who has reviewed your situation. JaZaa offers that review through our tax and accounting advisory.
Why construction firms lose the margin they priced
A contractor prices a job at, say, a 15% margin. The build finishes and the real margin is 6%. Nobody stole the difference. It drained out through small, untracked events across the project timeline.
The core problem is timing. In most industries, you sell something and collect the cash close together. In construction, you spend money for months before you collect it, you bill on certified milestones rather than on delivery, and part of every payment gets held back as retention. Costs run ahead of cash on a curve that no bank statement shows you.
Travelers Construction Surety has reported that around 60% of contractors who go out of business do so because of a single catastrophic project. The project rarely fails on site. It fails in the finance function that did not catch the overrun in time to renegotiate scope, submit a variation, or slow field spending. By the time the year end accounts reveal the loss, the money is gone.
A CFO closes that visibility gap. The role is not about producing statements after the fact. It is about running the numbers that let you steer while the project is still open.
Actionable Takeaway. Pull your last three completed projects and compare the tendered margin to the final delivered margin. If the gap is more than a few points on any of them, the leak is in your finance process, not your pricing. JaZaa’s fractional CFO support can run this analysis with you.
What a CFO actually does for a contracting firm
The title covers a wide range, so it helps to be concrete. For a UAE construction firm, CFO services for construction firms come down to four jobs that repeat on every project. Job costing tracks every committed cost against the budget. WIP reporting ties that cost data to revenue and tells you whether each open job is earning or losing. Billing and cash management times progress claims and retention releases to keep working capital positive across overlapping projects. The tax and compliance layer keeps VAT, corporate tax, and e-invoicing correct so the firm is not paying penalties or overpaying tax on badly structured costs.
None of this needs a full time hire. Many UAE contractors get the function through fractional CFO services, paying for the expertise without the salary. The rest of this guide takes each of the four jobs in turn.
Job costing is where control starts
You cannot control a cost you are not tracking against a budget. Job costing sets up each project as its own financial unit, with the tender budget broken into cost codes, and every committed cost logged against the right code as it happens.
The word committed matters. A purchase order raised for AED 180,000 of steel is a committed cost the moment you sign it, even though the invoice arrives weeks later. Firms that only track paid invoices are always looking backwards. By the time the steel invoice hits the accounts, the budget was blown a month ago and nobody flagged it.
A working job costing system shows three numbers for every cost code at any point. What you budgeted. What you have committed. What remains. When the remaining figure turns negative, that is your early warning, and you still have room to act, whether that means a variation claim, a supplier renegotiation, or tighter control on the rest of the package.
For a UAE contractor, the system also has to separate costs cleanly for tax. Subcontractor payments, material imports, staff accommodation recharged to the client, and plant hire each carry different VAT and corporate tax treatment. A job costing structure built with that in mind makes the tax work at year end far cheaper and far less error prone. JaZaa builds these cost-code structures with contractors through our accounting team.
Actionable Takeaway. For your largest live project, check whether you can see budgeted, committed, and remaining cost by code today, not at month end. If you cannot, that is the first system to fix. JaZaa can set this up with your team.
WIP reporting tells you the truth the bank balance hides
Work in progress reporting is the single most useful report a contractor can run, and most UAE SMEs in the sector do not run it properly.
The logic is simple. You measure how far a project has progressed by comparing costs incurred to date against the total estimated cost of the job. That percentage, applied to the contract value, tells you how much revenue you have actually earned. Compare earned revenue to what you have billed the client, and one of two things is true.
If you have billed more than you have earned, you are overbilled. On the bank statement that looks like healthy cash. On the balance sheet it is a liability, because you owe the client work you have already been paid for. Spend that cash as if it is profit and you will be short when the work comes due.
If you have billed less than you have earned, you are underbilled. You have done the work, funded it out of your own pocket, and not yet claimed it. That is your own cash financing the client’s project.
A worked example. A project has a contract value of AED 3 million and an estimated total cost of AED 2.4 million. Costs incurred to date are AED 1.2 million, so the job is 50% complete and has earned AED 1.5 million of revenue. If you have only billed AED 1.2 million, you are underbilled by AED 300,000, and that AED 300,000 is your working capital tied up in the client’s build. A WIP report catches this so you can accelerate the next progress claim.
Run this monthly across every open job and the report becomes an early alarm for margin erosion. A project whose cost-to-complete estimate keeps rising is a project whose margin is shrinking, and the WIP schedule shows it while you still have moves to make. JaZaa produces monthly WIP schedules for contracting clients as part of our monthly bookkeeping support. One warning on tooling. Procore research has found that spreadsheets contain errors in a large majority of cases, and a WIP schedule feeding your revenue recognition and your tax position is not a place for fragile manual formulas. Get it into a system that reconciles to your ledger.
Actionable Takeaway. Build a WIP schedule for every open project this month, showing percentage complete, earned revenue, amount billed, and the over or under billing position. Review it before you spend any cash that looks like surplus. JaZaa can set up this reporting cycle for you.
Progress billing, retention, and the VAT cash trap
Construction billing has a tax problem that catches contractors every year. It sits at the join between progress billing, retention, and the timing of VAT.
Construction is treated as a continuous supply under UAE VAT law. Federal Decree-Law No. 8 of 2017 sets the date of supply for contracts with periodic payments as the earliest of the date of the tax invoice, the date of payment, or a twelve month point. In practice, VAT falls due when you certify and invoice a milestone, at the standard rate of 5% for commercial construction. The first supply of a new residential building is zero rated, which is a separate and valuable treatment worth structuring for on residential work.
The trap is retention. When you certify AED 500,000 of work and the client holds 10% retention, you collect AED 450,000 plus VAT, but historically the VAT could fall due on the full certified value, meaning you remit VAT to the Federal Tax Authority on money you have not yet received. On a large project, that timing gap alone can strain cash for months. You can review the official position on the Federal Tax Authority website at tax.gov.ae.
The e-invoicing rules arriving from 2026 change how retention has to be shown, with the net payable amount and the retained portion handled distinctly and a separate tax invoice issued when retention is released. The exact treatment depends on your contract wording and system configuration, which is why this needs a finance function that understands both the contract and the tax rule.
A CFO plans billing and retention around cash, not just around the contract schedule. That means sequencing progress claims to keep working capital positive, provisioning for the VAT that will fall due, and making sure retention releases are tracked and claimed on time rather than forgotten at the back of a two year project. JaZaa handles the VAT and billing timing on construction contracts.
Actionable Takeaway. Map the VAT you will owe on your next three certified milestones against the cash you will actually collect after retention. If VAT falls due before the cash lands, set the reserve aside now. JaZaa can build this VAT timing map with you.
Cash flow forecasting across overlapping projects
A single project is manageable. Four projects at different stages, each with its own mobilisation advance, progress curve, retention hold, and subcontractor payment schedule, is where contractors run out of cash while showing a profit on paper.
Cash flow forecasting for a contracting firm is a rolling model, usually run on a thirteen week horizon, that lays every project’s expected inflows and outflows on one timeline. Mobilisation advances and progress payments come in, minus retention. Subcontractor payments, payroll, materials, and plant hire go out on their own schedules. Corporate tax and VAT land on fixed dates. The model shows the net cash position week by week and flags where you go negative before you get there.
That forward view lets a CFO act early. A predicted shortfall in week nine gives you two months to accelerate a progress claim, negotiate supplier terms, arrange a facility, or delay a discretionary spend. The same shortfall discovered on the day it happens gives you nothing but a scramble.
For UAE contractors the model also has to reserve for the corporate tax bill, due within nine months of the tax period end, and for the VAT that falls due on certified work ahead of retention collection. A forecast that ignores those two obligations shows cash that is already spoken for. JaZaa builds and maintains these forecasts for contracting clients through its fractional CFO services.
Actionable Takeaway. Build a thirteen week cash flow forecast that includes every live project, plus your next VAT and corporate tax payment dates. Update it weekly. JaZaa can build and run this model with your team.
Corporate tax and the deductibility of project costs
Corporate tax turned every construction cost into a tax question. A cost that is properly documented and deductible lowers your taxable profit. A cost that is poorly documented or wrongly structured may be disallowed, which raises your bill at 9% on the disallowed amount.
Subcontractor payments are the clearest example. For a main contractor, subcontractor costs are usually deductible, but only if the contracts, invoices, and payment records support them. Loose paperwork on a large package is a direct corporate tax risk, because the Federal Tax Authority can challenge a deduction it cannot trace to a proper contract and invoice trail. The same discipline applies to materials, plant hire, staff accommodation, and the treatment of variations and claims.
Timing matters too. Construction revenue follows a percentage of completion basis, so a project straddling two tax periods needs its revenue and cost split correctly across both. Get the cut off wrong and you either overstate profit in one year, paying tax early, or understate it and create an exposure the FTA can later assess.
A CFO structures the finance function so costs are captured in deductible form as they happen, revenue is recognised correctly across tax periods, and the corporate tax provision builds through the year rather than surfacing at filing. That is the difference between a tax bill you planned for and one that lands as a shock. You can see the current framework on the Ministry of Finance site at mof.gov.ae. JaZaa handles corporate tax provisioning and cost structuring for contractors.
Actionable Takeaway. Review your subcontractor and major supplier packages for the current year and confirm each has a signed contract, valid tax invoice, and payment record. Fix the gaps before year end, not during a filing. JaZaa can run this documentation review.
E-invoicing readiness is now a cost control issue
E-invoicing might sound like an IT project, but for contractors it is a cost control and cash flow issue, because the format has to carry retention, advances, and subcontractor billing correctly, and getting it wrong triggers the Cabinet Decision No. 106 of 2025 penalties and payment delays.
The construction specific challenge is that a progress invoice with retention has to show the net payable amount with VAT applied correctly, and a separate invoice has to follow when retention is released. Subcontractor invoices flowing up to the main contractor have to validate cleanly against the same rules. A finance function that sets this up before the mandatory phase reaches your revenue band avoids both the penalties and the payment disputes that come from rejected invoices. JaZaa helps contracting firms get their billing systems e-invoicing ready.
Actionable Takeaway. Check whether your current invoicing system can produce a compliant e-invoice that separates net payable from retention. If it cannot, start the reconfiguration before the mandatory phase reaches your revenue band. JaZaa can assess your e-invoicing readiness.
Fractional or full time, and how to choose
Most UAE contracting SMEs do not need a full time CFO on a six figure salary. What they need is the function, delivered by someone senior enough to build the systems and read the numbers.
A fractional or outsourced CFO gives you the job costing structure, the monthly WIP reporting, the cash flow model, and the tax and compliance oversight, on a fixed monthly engagement that costs a fraction of a full time hire. For a firm running two to ten million dirhams of turnover across a handful of projects, that is usually the right fit. A full time CFO makes sense once the business is large and complex enough that the role is a daily one.
The decision is not really about the title. It is about whether the four jobs above are being done properly right now. If your margins are leaking, your cash is tight despite a healthy order book, or your last tax filing was a scramble, the function is missing regardless of who is nominally responsible for it. JaZaa provides this function on a fractional basis to construction and contracting firms across the UAE through its fractional CFO services.
Frequently Asked Questions
They are the senior finance functions that keep projects on margin, including job costing, WIP reporting, progress billing and retention management, cash flow forecasting, and corporate tax and VAT oversight. For most UAE contractors these are delivered on a fractional or outsourced basis rather than through a full time hire.
A CFO sets up job costing so every committed cost is tracked against the budget in real time, then runs WIP reporting so margin erosion shows up while the project is still open. That early visibility lets the firm act on overruns through variations, supplier renegotiation, or tighter field spending before the loss is locked in.
Work in progress reporting compares costs incurred against total estimated cost to show how much revenue a project has actually earned, then compares that to what has been billed. It reveals whether you are overbilled, which is a hidden liability, or underbilled, which means your cash is financing the client's project.
Construction is a continuous supply, so VAT generally falls due when a milestone is certified and invoiced at 5% for commercial work. Retention creates a timing gap because VAT can fall due on certified value before the retained cash is collected, and the e-invoicing rules arriving from 2026 change how retention must be shown on invoices. The exact treatment depends on your contract, so confirm it with a qualified advisor.
Yes. Taxable profit above AED 375,000 is taxed at 9%, with the first AED 375,000 at 0%. Firms with revenue under AED 3 million can currently elect Small Business Relief, but that relief expires for tax periods ending after 31 December 2026.
Subcontractor costs are generally deductible for a main contractor, but only when supported by proper contracts, valid tax invoices, and payment records. Weak documentation on a large package is a corporate tax risk because the deduction can be challenged.
The rollout is phased, with a voluntary pilot in July 2026 and mandatory compliance for businesses with revenue above AED 50 million from January 2027, followed by smaller firms in later phases. Penalties under Cabinet Decision No. 106 of 2025 include AED 5,000 per month for failing to implement the system.
A fractional or outsourced CFO is engaged on a fixed monthly basis and costs a fraction of a full time salary, while still delivering job costing, WIP reporting, cash flow forecasting, and tax oversight. The exact fee depends on the number of projects and the complexity of the business.
Overbilling means you have invoiced the client for more than the work completed justifies, which looks like cash but is a liability for work you still owe. Underbilling means you have earned more than you have billed, which means your own cash is funding the project until you claim it.
When your delivered margins are coming in below tender, your cash is tight despite a strong order book, or your tax filing was a last minute scramble, the finance function is not doing its job. Those are the signals to bring in senior support. JaZaa provides this senior finance support on a fractional basis.
Bringing it all together
Project cost control in construction is decided in the finance function, not only on the site. The margin you priced at tender survives when job costing tracks every committed cost against budget, when WIP reporting exposes margin erosion while the job is still open, when billing and retention are timed to protect cash, and when VAT, corporate tax, and e-invoicing are structured so they do not ambush you. Miss those and a profitable order book still ends in a cash squeeze and a shrinking margin.
For most UAE contractors, the answer is not a full time finance department. It is access to a senior finance function, delivered on a fractional basis, that builds the systems and reads the numbers month by month.
Your next step
Take your largest live project and run one check this week. Compare the revenue you have earned, based on percentage of completion, against the amount you have billed. If the two are far apart, you have either cash tied up in the client’s build or a hidden liability on your books, and either way it is costing you. That single number is where cost control starts.
JaZaa works with construction and contracting firms across the UAE to build the finance function behind project delivery, from job costing and WIP reporting to VAT timing, corporate tax provisioning, and e-invoicing readiness. To review your projects and your finance systems, contact JaZaa’s construction finance team.
Disclaimer
General information. This article provides general information about CFO services and project cost control for construction and contracting firms in the UAE. Specific accounting, VAT, and corporate tax implications vary by contract terms, entity structure, and free zone status.
Advisory capacity and no client relationship. JaZaa provides professional business services including accounting, bookkeeping support, and management consulting. We are not a registered audit firm, tax agent, CPA, or Chartered Accounting firm. Information in this article does not constitute professional tax, legal, or accounting advice and should not replace consultation with qualified professionals familiar with your circumstances.
Regulatory and compliance scope. The VAT, corporate tax, and e-invoicing requirements referenced are based on publicly available guidance from the Federal Tax Authority and the Ministry of Finance. Rules and effective dates change. Always verify current requirements with qualified advisors and the official authorities.
Accuracy and limitation of liability. While we work to ensure accuracy, the tax and accounting treatment of construction projects depends on specific circumstances. JaZaa assumes no liability for decisions made based on this general information. Always obtain specific guidance from qualified professionals before acting.
Contact for specific guidance. For personalised support with construction finance, project cost control, and tax compliance, contact JaZaa to schedule a consultation.
