Electronic publication and notification of decisions by administrative bodies.
Belastingdienst VAT return, MijnOverheid notifications and DigiD-Substantial second factor for the Dutch taxpayer
With more than 14 million active DigiD accounts, Logius serves all Dutch government services through a single authentication stack. The Belastingdienst operates monthly, quarterly and annual VAT cycles (depending on turnover). 4notify delivers VAT deadline reminders, MijnOverheid notifications and DigiD-Substantial second factor codes via SMS, push and email with sub-4-second P50 latency.
Pursuant to the General Administrative Law Act article 2:14 and the Tax Authority Electronic Messaging Act, the Belastingdienst, in consultation with Logius, issues the following Notice on the delivery of tax reminders and MijnOverheid notifications.
VAT return: monthly (turnover >€7,500/month), quarterly (standard) or annual (VAT <€1,883/year).
Two-factor authentication via SMS code or DigiD app; eIDAS-Substantial since 2018.
Belastingdienst API integration at accountant
4notify subscribes to outbound queue of accounting software; VAT deadlines computed per client.
T-30 / T-14 / T-7 / T-1 cadence
Quarterly deadline reminder 30/14/7/1 days prior; annual on 31/3 for IB and 1/5 for VPB.
DigiD-Substantial OTP
Second-factor codes within 60-second window across all three MNOs; email fallback on SMS failure.
Penalty awareness in cadence
Late-filing penalty (€60-€131) and late-payment penalty (3% of outstanding) mentioned in reminder text.
json
{
"gebeurtenis": "belastingdienst.btw.deadline_herinnering",
"btw_nummer": "NL123456789B01",
"kwartaal": "2026-Q2",
"deadline": "2026-08-01",
"dagen_tot_deadline": 14,
"sjabloon": "btw_q_einde_t14_v2",
"kanalen": ["email", "sms"]
}Belastingdienst reminder: VAT return Q2 2026 due in 14 days (01-08-2026). Late filing penalty €60. STOP to opt out.
- Belastingdienst API registered with Logius
- Quarterly cadence per client synchronised
- DigiD-Substantial OTP P50 ≤ 4s measured
- Penalty awareness in template approved
4notify is the only A2P service provider that recomputes the Belastingdienst quarterly cadence from accounting integration, delivers DigiD-Substantial second-factor codes via all three MNOs with P50 ≤ 4s and carries penalty awareness in approved templates.
Do I need a Belastingdienst API key at 4notify?
No. 4notify operates with delivery envelopes from the accounting software; the Belastingdienst API connection stays with the accountant.
Is the adviser also notified?
Yes — primary recipient (client) + CC recipient (adviser) with separate templates.
Start free
14 days, no card. Dutch + English support during the working week.