Setting up the G-account
A G-account is a blocked bank account with which you can only pay payroll taxes and/or VAT. A G-account number always contains the digits 099 in the 3 positions directly after the 4-letter bank code. Robaws calculates per invoice which part has to go to the G-account and states that on the invoice.
Activating the G-account
You activate the G-account at company level:
- Go to settings > invoices.
- Scroll to the card 'G-account default settings'.
- Switch on 'Activate G-account'.
In the same card you set the default values that every new invoice is given. The fields appear as soon as you tick 'Active':
Field | Explanation |
|---|---|
Active | Does a G-account have to be used by default when a new invoice is created? |
Strategy | Percent or Labour amount. By default this is set to Percent. |
Payroll costs % | Which part of the invoice consists of payroll costs? This field only appears with the Percent strategy. |
G-account % | Which percentage of the payroll cost component has to be paid into the G-account? |
Standard message on the invoice
You can set a standard message that is stated on every invoice with a G-account:
- Go to settings > invoices.
- In the card 'Settings', scroll to the field 'G-account remark'.
- Type your text. Via the language icon next to the field you fill in a translation per language.
You can use these replacement codes in the text:
Code | What it shows |
|---|---|
${gAccountAmount} | The amount that has to be paid into the G-account |
${totalWithoutGAccountAmount} | The invoice amount less the amount for the G-account — in other words the amount that has to be paid into the current account |
${labourAmount} | The labour amount, based on the chosen strategy |
The labour amount is calculated differently for each strategy:
Strategy: Percent | Strategy: Labour amount |
|---|---|
total VAT incl. x Payroll costs % | quantity of hours x price per hour |
The G-account on an invoice
As soon as the G-account has been activated, an extra G-account frame appears on every invoice:
- Active: does a G-account have to be used for this invoice?
- Strategy: Percent or Labour amount.
At the bottom of the frame you see the calculated 'G-account total'.
Percent
- Payroll costs %: which part of the invoice consists of payroll costs?
- G-account %: which percentage of the payroll cost component has to be paid into the G-account?

Labour amount
You can also state the labour amount in hours instead of as a percentage. The field 'Labour amount' then calculates: quantity of hours x price per hour.
If you create the invoice from one or more work orders, Robaws already fills in those two fields for you:
- Quantity of hours: the sum of the invoiceable hours of the work orders.
- Price per hour: the average of the sales prices of the hour lines.
You can always overwrite those values on the invoice.

Example calculation
An invoice of € 1,500 incl. VAT, with a payroll cost component of 60% and a G-account percentage of 30%:
Step | Calculation | Result |
|---|---|---|
Payroll cost component | € 1,500 x 60% | € 900 |
G-account amount | € 900 x 30% | € 270 |
To be paid into the current account | € 1,500 - € 270 | € 1,230 |
So the G-account percentage works on the payroll cost component, not on the full invoice total.
Updated on: 08/09/2026
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