Bookkeeping for Construction Companies

Project cost control, VAT and payroll, subcontractor settlements and Byggekort, plus margin reports — audit-ready compliance and real profitability.

Book a Free Profitability Assessment (15 min)

Watch video

600+

Satisfied Clients

Experts

100%

Insured + Authorised

Sound familiar? This is the daily reality of construction firms.

If these situations resonate with you, it is time to get your costs and reporting in order.

Money "slipping through the cracks"

You run projects, but at the end of the day profitability turns out to be far lower than expected. “Once again the budget didn’t add up when the project closed, and I have no idea why.”

Fear of audits and paperwork chaos

Invoices go missing, contracts are scattered across locations, and you are never sure everything is being settled correctly. “Am I certain I haven’t overlooked anything? What if an audit comes?”

Managing "in the dark"

You make critical decisions without access to up-to-date financial data, relying on gut feeling. “I need those numbers yesterday, not three weeks from now.”

Every day without cost control is money you will never recover.

Why ignoring this problem NOW is riskier than ever

⚡ Tighter inspections by Skatteetaten and Arbeidstilsynet, along with DiBK requirements, increase the risk of penalties when documentation and accounts are not kept flawlessly. The construction market is changing rapidly. What worked yesterday may generate losses and serious legal risk today. Falling behind is not an option.

Growing pressure on margins

Material prices and labour costs are rising steadily. Firms that cannot accurately calculate and monitor the profitability of every project will simply be pushed out of the market. Competitors who do will take your contracts.

An increasingly tighter regulatory system

The Norwegian Tax Administration (Skatteetaten) and the Labour Inspection Authority (Arbeidstilsynet) introduce new requirements and tighten controls every year. The Directorate for Building Quality (DiBK) requires Sentral godkjenning, while NAV monitors the correct posting of workers. Half-measures and “cheap bookkeeping” are a direct route to substantial financial penalties.

Digitalisation is a necessity

Modern tools give your competitors an edge — real-time access to data. Basing decisions on intuition while others rely on hard numbers is a strategic mistake you cannot afford.

An investment in peace of mind that costs less than a single serious mistake.

⚡ Construction firms with ongoing cost control save an average of NOK 40,000–80,000 per year in avoided penalties and tax optimisation.

Many of our clients initially thought we were “expensive.” Today they know that the lack of margin and tax control was costing them far more. Let us look at the numbers.

The real cost of "cheap" bookkeeping vs. investing in MTA Group support

NOK 50,000+ in tax errors and interest

A predictable monthly fee based on a tailored simulation

NOK 100,000+ in losses from underperforming projects

The support of 30 experts for the price of one salary

Lost contracts due to chaos and payment bottlenecks

Full compliance and representation before authorities

Installation Company, Oslo

Challenge: No control over material and labour costs across projects. Low, unpredictable margins.

Result: After implementing cost reporting, within 6 months they achieved an 18% cost reduction, yielding annual savings of approximately NOK 270,000.

Construction Company, Bergen

Challenge: Errors in posted-worker payroll settlements, risk of heavy fines from Arbeidstilsynet.

Result: Streamlined HR processes and avoidance of a potential penalty exceeding NOK 150,000.

Bookkeeping for Construction Companies — turning chaos into results

We deliver clear margin and cash-flow reports so you can make decisions based on facts, not guesswork.

Tax Advisory

We do more than bookkeeping. We analyse project margins and cash flow, and advise you on where to earn more and avoid risk. Construction-sector accounting requires advisory, not just invoice entry. Our advisory services include tax optimisation compliant with the Bokføringsloven.

Profitability Control

You receive project profitability reports, labour-hour costs and material costs. You know which contracts are profitable and which are generating losses.

Full Payroll & HR Services

We manage timeføring, posted-worker compliance, minimallønn and HMS-kort so that salaries are processed on time and in full accordance with Norwegian regulations.

Digital Document Management

Simply photograph an invoice with your phone and the rest happens automatically. You save time and can be sure nothing gets lost.

Representation Before Authorities

We handle all communication with Skatteetaten, Arbeidstilsynet and NAV, including subcontractor settlements and solidaransvar. You can rest easy. Need a bookkeeping audit? We carry it out in full compliance with the Bokføringsloven.

Growth Support

We assist with company registration in Brønnøysundregistrene, restructuring and strategic planning. We are your partner at every stage of growth.

Trust that pays off

Our clients speak openly about the results: fewer errors, better liquidity and greater control.

4.9/5 based on 50+ Google reviews

See Google reviews

“I have been using MTA Group AS’s services for many years and I am very satisfied with the partnership. Professional approach, reliability and excellent communication. I recommend them to anyone looking for a trustworthy accounting firm.”

Piotr K.

Google Review

“10/10 is definitely not enough to describe the level of services provided. MTA GROUP’s strengths are the competent approach to every client, availability and reliability.”

Mirosław Sz.

Stillas Utleie AS

How does onboarding and ongoing collaboration work? A simple 4-step process.

Onboarding is straightforward and predictable — we take over step by step and organise your data.

Assessment & Goals

We start with a 15-minute call to understand your goals and identify where you are losing the most.

Plan & Cost Simulation

You receive a transparent action plan and an annual cost simulation. You know exactly what you will pay.

Seamless Transition

We handle 99% of the formalities and all communication with your previous accounting provider. You experience zero disruption.

Ongoing Support & Reports

You receive continuous access to reports, analyses and tax advisory from your dedicated account manager.

From the first invoice to the annual financial statements — we take responsibility for your finances.

One dedicated account manager for your company. 30 experts behind them.

You get a unique combination of a personal relationship backed by the strength and security of one of the largest specialist teams in the industry. You are never left alone with a problem.

Personal contact and understanding: A dedicated account manager who knows your business and your goals.
Guaranteed continuity: Full team backup in case of your account manager’s holiday or absence.
Access to unique expertise: Benefit from the experience of 7 authorised accountants, plus specialists in tax, employment law and the specifics of the construction sector.

Ready for your construction business to start earning more?

Let us talk. In 15 minutes, with no obligation, we will show you the 3 areas where construction firms most commonly lose margin.

Yes, book a free profitability assessment

Our Guarantee: If after 3 months of collaboration you do not feel greater peace of mind and control over your finances, you may terminate the agreement with no notice period. We take the risk upon ourselves.

Frequently Asked Questions About Construction Bookkeeping

We have compiled the most common questions to address any doubts before getting started.

How much does bookkeeping cost for a construction company?

The cost depends on the number of projects, employees and subcontractors, as well as whether you handle Byggekort, posted workers and payroll. We begin with a brief assessment and cost simulation, so you have full predictability. In practice, the service pays for itself through improved margins, cost control and avoided penalties.

How does construction bookkeeping differ from standard bookkeeping?

In construction, the project matters — not just the invoices. There are subcontractor settlements, timeføring, solidaransvar, Byggekort/HMS‑kort, VAT and payroll to manage. We run your bookkeeping so you can see project profitability and cash flow in real time, not after the fact.

What does switching your accounting provider look like for a construction firm?

Switching is simple and involves zero downtime. We handle 99% of the formalities, contact with your previous provider and document transfer. We define the scope, implement the document submission process and immediately organise your projects. You make the decision; we deliver a seamless transition.

Do you represent construction firms before Skatteetaten and Arbeidstilsynet?

Yes. We act as your formal representative before Skatteetaten, Arbeidstilsynet and NAV. We take over communication, respond to enquiries and monitor all VAT, payroll and industry-specific deadlines. This gives you peace of mind and minimises the risk of penalties.

I already have an accounting office. How does the collaboration work?

This is a common arrangement. We operate as your Norwegian financial division. We exchange data with your existing office, ensure document consistency and reconciliation compliance across both jurisdictions. You get a single financial overview and a clear division of responsibilities.

How does submitting documents from construction sites work in practice?

We work 100% digitally. Invoices, contracts and cost estimates from sites can be submitted via a smartphone app or e‑mail. A simple photo is enough — the document enters the system and is assigned to the relevant project. Nothing gets lost, and reports stay up to date.

What bookkeeping requirements apply to construction companies (Byggekort, subcontractors)?

A construction company must maintain timeføring, settle subcontractors with regard to solidaransvar, hold HMS‑kort and often manage Byggekort. Skatteetaten pays particular attention to VAT and payroll. We keep your documentation compliant and audit-ready.

Do I need Sentral godkjenning and Byggekort?

Sentral godkjenning is not mandatory but often facilitates winning contracts. Byggekort/HMS‑kort are required on many construction sites and must be properly accounted for. We assist with documentation and compliance to meet the requirements of both clients and authorities.

How do you handle payroll for posted workers in a construction company?

Posted workers must hold an A1 certificate, and the company must meet Norwegian wage requirements (minimallønn) monitored by Arbeidstilsynet. We ensure the accuracy of registrations and settlements, and manage solidaransvar and documentation to mitigate the risk of penalties.

P.S. Remember, every month without full profitability control means real money lost forever. Our 15-minute free assessment costs nothing and could be the start of recovering tens of thousands of kroner.