vatnode

VIES Status for Slovenia

Whether the SI node is answering right now, every outage we have recorded, and the hours it fails most often. Read from the European Commission’s own availability feed every 15 minutes.

Right Now

Read 15:44 UTC · Sunday, 27 Sep 2026
SI is answeringCommission reports “Available”
Last 24 hours
100.00%
Last 7 days
100.00%
Last 30 days
99.40%
Rank among member states
#18 of 28

Figures cover 30 days of our samples (2836 for SI), capped at 30 days — not a full month yet unless it says so. All member states averaged 97.79% over the same window.

When Slovenia Was Unavailable

3 separate outages, 4 h 1 min of observed downtime in total. Times are UTC. Sampling is every 15 minutes, so each window is accurate to within one interval on each side.

DateWindow (UTC)LengthReported state
Wednesday, 9 Sep 202617:42 – 17:5715 minUnavailable
Sunday, 6 Sep 202617:32 – 20:182 h 46 minUnavailable
Sunday, 6 Sep 202616:17 – 17:171 hUnavailable

Day by Day

One column per UTC day. The number above a column is the percentage of readings that failed that day; a blank means every reading came back.

28
29
30
31
01
02
03
04
05
17.0
06
07
08
1.0
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

The Hours Slovenia Goes Quiet

In our samples, the weakest hour is 17:00–18:00 UTC at 95.90% across 122 readings, and the weakest day is Sunday at 96.36%. That is a description of what we recorded, not a schedule – treat it as a hint about when to retry, not a promise.

By hour of day (UTC)

00
03
06
09
12
15
18
21

By weekday

Sun
Mon
Tue
Wed
Thu
Fri
Sat

Weekday × Hour

SI availability by UTC weekday and hour, across 30 days of samples. Dark green is healthy; red is a slot where the node regularly fails to answer.

036912151821
Sun
Mon
Tue
Wed
Thu
Fri
Sat
≥ 99.5% ≥ 98% ≥ 95% ≥ 85% below 85% no samples yet

Hours are UTC. Hover a cell for the exact figure.

What Happens to Your Checks When Slovenia Is Down

Nothing validates against a member state that is not answering – not vatnode, not any other provider, not the tax authority’s own portal. VIES stores no data of its own: every answer comes from the member state live, so there is no cache to fall back on and no way to fake one honestly.

What an API can do is fail in a way you can act on. A SI outage comes back as VIES_UNAVAILABLE with HTTP 503 – never as “invalid”, which would have you rejecting real customers over someone else’s downtime. Monitoring re-runs the check through the day and tells you when the answer finally lands.

For Slovenia there is a second route: vatnode also queries the national tax authority or company registry, so some checks still return an answer while VIES is unreachable. When it does answer, the response carries the registered name and address alongside the validity flag.

Full error semantics are in the API docs. For vatnode’s own uptime rather than VIES, see System Status.

Slovenia VAT Number Format and Checks

VIES prefix
SI
Format
SI + 8 digits
Example
SI82646716 — Krka d.d., Novo Mesto
Standard VAT rate
22% — Davek na dodano vrednost (DDV)
Check Slovenian VAT numbersSlovenia VAT APIReverse charge in SloveniaEU VAT rates

Questions People Ask

Is VIES down for Slovenia right now?
No. At our last reading the SI node was answering VIES requests. The reading is at most 15 minutes old, and a member state can drop out between samples.
Why does a valid Slovenian VAT number fail to validate?
If the number is well-formed and the SI node is unavailable, the failure is upstream, not in the number. VIES returns a service error rather than "invalid", and any provider that turns that into "invalid" is lying to you. vatnode returns a distinct VIES_UNAVAILABLE error with HTTP 503 so your code can retry instead of rejecting a real customer.
Does Slovenia publish a VIES maintenance schedule?
The Commission publishes a general VIES maintenance notice, but member states take their own systems down without announcing it to API consumers. That is why this page exists: the recorded history shows when the SI node was actually unreachable, whatever the schedule says.
Can I still validate a Slovenian VAT number during an outage?
Not against VIES. What you can do is queue the check and retry — vatnode's monitoring re-runs a subscription's checks through the day and tells you when the answer finally lands, so a customer is not blocked by a member state's downtime.
Where does this data come from?
From the European Commission's own check-status endpoint, sampled every 15 minutes and kept. It is the Commission's view of its member states, not an independent probe, so it can lag a node going down and it describes reachability rather than whether one particular number validates.

Other Member States

ATBEBGCYCZDEDKEEELESFIFRHRHUIEITLTLULVMTNLPLPTROSESISKXI

Or see every member state at once.

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