PPWR is not the only one. Don't forget WEEE and the battery regulation. Only for VAT we have a single entrypoint, for all other regulations, businesses have to submit for each country. Its simply impossible.

On the other hand I estimate that between 50% and 200% of the taxes collected like this are wasted and not applied to their ultimate goals. The average collected amount per submission is so small that you cannot pay the bureaucrats managing the complex submissions from these sums.

An entrepreneur told me that they were being audited regarding the battery regulation. Two consultants came over from EY and audited all submissions in depth. They found out that the business overpaid by €10. The entrepreneur of course didn't mind and told them to keep the €10. The EY consultants told the entrepreneur to resubmit, otherwise the business would be fined. I think the government spent more on that audit by EY than the business will ever bring in on fees.

On top of this we have the regulations like Intrastat and in the future near-real-time submission of digital invoices to our tax authorities.