Learn all about Hoogheemraadschappen invoicing procedure.

Invoicing Procedures – Water Authorities

For the Water Authorities listed below, different invoicing procedures are available. Although the procedure is almost identical for some clients, there are differences in how the timesheet and invoice must be submitted, the payment term, and the additional invoicing requirements.

The procedures for Hoogheemraadschap van Rijnland and HHSK (Hoogheemraadschap van Schieland en de Krimpenerwaard) are identical in content and have therefore been combined below. Hoogheemraadschap Delfland has a more extensive procedure with additional requirements.

1. Invoicing Procedure Hoogheemraadschap van Rijnland & HHSK

For Hoogheemraadschap van Rijnland and HHSK, the same invoicing procedure applies. The documents contain the same procedure, invoice address and additional information. Therefore, these procedures have been combined.

How does the procedure work?

The professional records the hours worked on the timesheet.
The professional has the timesheet signed for approval by the client on the last working day of the month. Approval of the timesheet by email is also sufficient, provided that the email states the month, year and the number of hours being approved.
Attach the signed timesheet as a PDF to the invoice. In case of approval by email, please print the email as a PDF and attach it as well.
Send the invoice together with the timesheet and approval in one email to facturatie@headfirst.nl. All attachments must be included as PDF files.

Invoice Address

HeadFirst IT B.V.
Taurusavenue 18
2132 LS Hoofddorp
facturatie@headfirst.nl

Additional Information

The professional and the client are responsible for ensuring that the hours worked are entered and approved on time.
Invoicing can only be done once per month, per professional.
The agreed payment term starts from the moment we receive the invoice (date of receipt).
You can track the status of your invoice via your profile in the Striive platform under the ‘Invoices’ tab.

2. Invoicing Procedure Hoogheemraadschap Delfland

For Hoogheemraadschap Delfland, a different and more extensive procedure applies. A monthly timesheet is also used, but additional agreements are included regarding the confirmation of receipt, payment term, hourly rate to be invoiced and the information that must be included on the invoice.

How does it work?

The professional enters his/her hours worked on the timesheet, see page 2.
After the end of the month, the professional has the timesheet signed for approval by the client.
Attach the signed timesheet to the invoice.

Invoice Address

You can submit your invoice and signed timesheet monthly by post or digitally by email. We prefer to receive these by email, which also has the advantage that we can process them more quickly.

HeadFirst IT B.V.
Taurusavenue 18
2132 LS Hoofddorp
facturatie@headfirst.nl

Tips/Comments

Invoicing can only be done on a monthly basis.
For every invoice submitted, you will receive a confirmation of receipt from us within 24 hours after receipt, unless the invoice is submitted during the weekend or on a public holiday. In that case, you will receive a confirmation of receipt on the next working day. If you do not receive this confirmation, please contact us to make sure.
The agreed payment term starts from the moment you receive the confirmation of receipt.
Invoice us for the hourly rate stated in the assignment agreement. No Premium or Basic costs may be deducted. These costs will be invoiced to you separately by HeadFirst and will be settled upon payment.
You can track the status of your invoice 24/7 in your profile in Select under the Invoices tab.

Required Invoice Details

Assignment agreement number
Invoice number
Invoice date
Name of employee
Period of work
Number of hours
Rate
Amount excluding VAT
Amount 21% VAT
Amount including VAT
Company name
Address details
VAT number
Chamber of Commerce (KvK) number
IBAN number