Construction invoice: do you know everything you need to include?

Feb 20, 2025 | Electronic invoicing

Few industries move more money than construction, as these are projects that involve very high financial transactions. However, construction invoices have unique characteristics that set them apart from others: the correct description of items, specific regulations, specific taxes, etc. Therefore, good document management is essential for both profitability and legal compliance in this sector. That is why, throughout this article, we analyze the fundamental aspects of construction invoices and how easyap facilitates their control with specialized software for electronic invoices. 

What is a construction invoice?

First of all, a construction invoice is a document requesting payment for work performed on a construction project. It serves as a detailed record of the materials used, the hours worked, the services provided, and other expenses associated with the development of the project. 

At the same time, this document has legal and accounting value, as it serves as proof of the work and, at the same time, allows for the setting of payment terms and conditions.

However, for a construction invoice to be valid and fulfill its function, it must include the basic billing information found on all invoices. That is:

  • Company and customer details. Name, address, and tax information for both parties.
  • Invoice number and date of issue. These are essential elements for identification and control, both by companies and by the relevant tax authorities.
  • Project description. This should be a clear description of the work or service that has been provided.
  • List of materials and services. This consists of a breakdown of the inputs and tasks performed with their respective costs.
  • Total amount payable. This is the sum of all the items that have been included in the invoice.
  • Payment terms and due date. Information on payment terms and conditions.
  • Accepted payment methods. Whether bank transfers, checks, or other agreed-upon methods, this information must be added to any invoice to be created.

In turn, the invoice must be clear, accurate, and easy to interpret to avoid errors and ensure that payments are made on time and in the correct manner.

Special features of invoices for the construction sector

As we mentioned in the introduction, the construction sector has more complex billing processes than other sectors. The reason for this is that there are very specific factors involved:

  • Billing based on certifications. Many invoices in construction are issued as the work progresses. Likewise, they are based on partial certifications.
  • Differentiated VAT. Depending on the type of work or renovation involved, different VAT rates may apply (in Spain, these are usually 10% or 21%).
  • Billing to public administrations. The public administration is one of the largest users in this sector. In this regard, it should be noted that the administration requires mandatory electronic invoicing, specific formats, and compliance with the Public Sector Contracts Act.
  • Management of suppliers and subcontractors. Controlling invoices for construction materials and subcontracted services is very important, as it is very common and typical of the sector.
  • Payment terms and collection management. In construction, payment terms can be extended. This makes it very necessary to have strict control over due dates and payment terms.
  • Specific rules and regulations. Companies in the sector must ensure that they comply with the tax and administrative requirements specific to the industry.

Differences between billing in the public and private sectors

Specifically, one of these peculiarities relates to working with the public administration. This is because turnover in construction varies depending on whether the client is a private or public entity. We can see this in the following comparative table:

Feature Public sector Private sector
Invoice format Mandatory electronic invoicing (Facturae) Paper or electronic invoice
Payment terms Generally, 30-60 days (Late Payment Act) Varies depending on the contract
Certifications Requires prior official approval You can be more flexible
Withholdings Application of tax withholdings Depending on the agreement
Payment management Public oversight and financial control Flexible negotiation with customers
Regulation Special regulations for public procurement Governed by trade agreements

In summary, the differences are that, in general, invoices for work in the public sector are much more controlled and regulated. In the private sector, as you can see, there is greater flexibility and the parties are free to agree on different aspects.

Most important concepts in construction invoices

On the other hand, making mistakes when issuing this type of invoice can cause legal and collection problems. Therefore, it is essential to correctly include certain items when invoicing for construction services (some of which we have already mentioned above):

  • Detailed, clear, and concise description of the work that have been carried out.
  • Amount broken down by items. That is, labor, materials, machinery rental, etc.
  • VAT applied according to the type of work.
  • Applicable withholdings (income tax, withholding certificates for public works, etc.).
  • Project issue and expiration dates.
  • Complete details of both the sender and the recipient. 
  • Payment terms and deadlines for completion of the work. 
  • Reference to previous contracts and certifications.

Sample construction invoice

In any case, what better way to see it all in a more visual and practical way than with an example of a fictitious construction invoice like this one:

Invoice No.: 2024-001
Date of issue: 02/15/2024
Customer: XYZ Construction Inc.

Concept Quantity Unit price Amount
Labor (150 hours) 1 5.000 € 5.000 €
Building materials 1 2.000 € 2.000 €
Machinery rental 1 1.500 € 1.500 €
Administrative costs 1 500 € 500 €
Total before VAT 9.000 €
VAT (10%) 1890€
Total amount payable 10.890 €

How easyap optimizes billing in the construction industry

The fact is that today, construction invoices have to adapt to the new digital reality. In other words, invoices are already (or should be) digital in practically all cases. And they must be so both for legal reasons and for convenience.

The truth is that digitizing invoicing in construction prevents errors, reduces management time, and ensures compliance with regulations. At easyap, we offer solutions tailored to the needs of the construction sector. We also provide advantages such as:

  • Automation of the billing process billing process. This allows us to avoid human error and speed up payments.
  • Regulatory compliance. Our software adapts to mandatory electronic invoicing for both the public and private sectors.
  • Integrated document manager. You will have a platform where you can centralize and organize all your documents for quick and secure access.
  • Automatic validation and reconciliation. We help you verify supplier and customer data before sending invoices.
  • Real-time payment tracking. We facilitate collection management and prevent delays.
  • Report generation and financial analysis. We provide very useful metrics to improve billing management.
  • Integration with ERPs and accounting software. We make financial control and decision-making easier for you.

In summary, construction invoices have particularities that require special attention. That is why now, in the digital age, it is vital to have an efficient system. Here, easyap's electronic invoicing software provides you with agility, accuracy, and legal compliance for every transaction. Contact us and digitize your company's invoicing and financial management. 

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