Why can’t I apply for a substitute shift?

Topic
Shifts
Type of shift
Freelance shift
31 Jul 2026

You can only take over another flex worker’s freelance shift if you both have the same VAT setup. That’s because, as a substitute, you’ll invoice the original flex worker, who invoices the client.

If invoicing goes through Finqle, the total amount must stay the same for the substitute. So if the original flex worker doesn’t charge VAT, but you do, the totals won’t match, meaning you won’t be able to take over the shift.

Invoicing without VAT

Flex workers who use the KOR scheme, or who are new to the platform and want to try out a freelance shift before applying for a VAT ID, don’t charge VAT.

They can cover shifts for each other, but they can’t substitute for flex workers who do charge VAT.

Important: Don’t just switch the KOR setting on or off in your profile to make a substitution work. This isn’t allowed by the Belastingdienst (Tax Administration) and could lead to a fine.

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