A September draft turns tax mail into a control question, not a format question.
On a Monday morning, a small employer can live in three tax worlds at once. A blue envelope sits on the desk. Mijn Belastingdienst Zakelijk waits behind eHerkenning. The bookkeeper has filed the VAT return, and may be the only person holding the digital receipt. Nothing feels urgent until a deadline starts to move.
The economic route comes first
The official signal is the draft Regeling berichtenverkeer Belastingdienst, published through Open Overheid on 2 July 2026 and intended to enter into force on 1 September 2026. It replaces the current Regeling elektronisch berichtenverkeer Belastingdienst and sets tax-office communication inside a new framework with a statutory choice right and fixed exceptions.
I read it less as paper versus digital and more as route management. The draft says the replacement itself does not change current message flows. The annex is the real map. For each tax or customer process, it shows whether the route is paper, digital, optional, or linked to Keuze Digitaal, and which portal and login method applies.
A choice right with fixed routes
The phrase choice right sounds wider than the daily reality. Many business and intermediary flows remain digital. In several processes, the practical door is still Mijn Belastingdienst Zakelijk, administration software, a fiscal service provider, or another prescribed route. The draft does not give every entrepreneur a free switch back to paper for each message.
Legal form is not the whole story
That matters because the route decides who sees the message, who can act, and where the evidence sits. Belastingdienst guidance puts entrepreneurs on eHerkenning for Mijn Belastingdienst Zakelijk. Sole proprietors and zzp'ers can also use DigiD. The business portal covers VAT returns, VAT corrections, payroll tax returns, corporation tax returns, VAT objections, KOR registration, ICP statements, account-number changes, and deferment requests.
CBS reported in 2025 that 89 percent of Dutch companies with 10 to 250 employees reached at least a basic level of digital intensity. It also found that 84 percent of residents aged 16 to 75 had at least basic digital skills. That company figure still leaves microbusinesses under 10 outside the measure. And even in a digital country, access can still depend on one absent director, one expired authorisation, or one adviser inbox.
The business risk sits in the handover
Take a small installation company with four employees. The owner is on site most days. Payroll tax sits with an adviser, VAT with a bookkeeper, and paper mail with whoever opens the office that morning. The company is not careless. It is simply normal. That is exactly why the new draft deserves attention.
Belastingdienst VAT guidance makes the handover concrete. VAT returns are filed online in Mijn Belastingdienst Zakelijk, through administration software, or through a fiscal service provider. After filing, the system issues a receipt confirmation. If the adviser files the return, the adviser receives that digital receipt. For control, that receipt still belongs with the company record for the tax period, the payment, and the ledger reconciliation.
The same discipline applies when a decision arrives. Belastingdienst guidance says objections against a tax assessment or another appealable decision must generally be filed within six weeks after the date of the assessment or decision. At that point, the channel is no longer just a matter of preference. It affects time. A message seen two weeks late leaves less room to check the ledger, speak with the adviser, gather evidence, and decide on a response.
Paper is not a safety system
Paper can help when digital access is weak. It can also fail quietly. A letter can sit in a tray during holidays, move with the wrong internal post, or be opened by someone who does not recognise the deadline. Digital messages have their own weak spots: eHerkenning rights, DigiD access for sole proprietors, software certificates, portal checks, adviser authorisations, and changes of director.
Follow one revenue stream
Keuze Digitaal adds another layer. For certain outgoing messages, a taxpayer who opts for digital-only receipt no longer receives those messages by post. If that choice is not made, the draft links the paper message to legally valid notification and to the start of objection or appeal timing for those messages. That is not a lifestyle choice. It is a control choice.
For the installation company, the real question is not whether the owner prefers paper. The question is who monitors each route when the owner is away, the bookkeeper changes, the adviser files late at night, or a staff member leaves with the login process in their head. Access rights are not technical decoration. They decide whether the company can retrieve, submit, correct, object, and prove.
The small discipline before September
The draft also points to a longer transition. The annex is expected to change regularly in the coming years, while the Belastingdienst and Dienst Toeslagen work toward full compliance with the modernised electronic administrative traffic rules by 2030. One glance at the regulation will not be enough for firms with several taxes, advisers, entities, or representative relationships.
The practical discipline is modest, but it has to be deliberate. One tax inbox calendar should bring together paper mail, portal checks, adviser confirmations, and payment dates. A simple access list should show which person can log in, with which tool, for which entity, and who covers illness or holidays. Recent filing receipts should sit with the matching tax period and payment proof, not only inside an adviser system.
None of this turns a small firm into a legal department. It does the opposite. It keeps tax communication close to ordinary business control: cash, deadlines, evidence, and responsibility. The draft does not invite panic, and it does not promise a return to paper. It makes visible what was already true. A tax message is not just a message. It is a business event that needs one clear route from receipt to action.
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