We process purchase invoices through an electronic system. Please follow these instructions to ensure smooth processing of your invoice with us.
E-invoice address
E-invoice Address (OVT)
003701109892
E-invoice Operator
Apix Messaging Oy
Operator ID
0037 2332 7487
VAT number
FI01109892
Company information
Louhintahiekka Oy
Hiomotie 19
00380 Helsinki
When placing an order, we will provide you with a project number, which should be included in the invoice as the buyer's reference in the OrderIdentifier field according to the Finvoice standard. In your invoicing software, this field may be labeled as Order Number or Your Reference. No other information should be included in this field besides the project number. Please note that each project’s invoice must be sent as a separate invoice with its respective attachments.
If sending e-invoices is not possible, you may also send invoices with attachments via email to:
The subject line of the email must contain the word "Lasku" and the number of the attached invoice. The invoice should be attached as a PDF file. Information in the body of the email will not be forwarded. Each email may contain only one PDF file, and each file may contain only one invoice. If there are other files attached to the email, they will be added to the invoice as attachments. The PDF file must be unprotected. Files with password protection or other restrictions cannot be processed. The maximum size for the PDF file is 2 MB, and the maximum size for the entire email is 7 MB. The PDF file can contain a maximum of 600 pages. The smallest allowed page size is 38 x 51 mm, and the largest allowed size is A3 (29.7 x 42 cm).
Project number
The project number can be found on our order. The project number must be included in the invoice as the buyer's reference. The buyer's name/phone number is also recommended to be included as additional information.
Please note that each project’s invoice must be sent as a separate invoice. Attachments to the invoice must be in PDF format.
Reverse Charge VAT on construction services
On international sales, the seller must ensure the correct VAT treatment on their invoice.
Louhintahiekka Oy sells construction services, as specified in section 8 c § 1 of the Finnish VAT Act. Therefore, where applicable, the VAT reverse charge system for construction sector applies to us as a buyer.
When the VAT reverse charge applies to construction services, the seller must include their own VAT ID and Louhintahiekka Oy's VAT ID on the invoice, along with the statement: "No VAT added, buyer's reverse charge VAT liability applies (section 8c § of the VAT Act)."