Reference: Midi-job zone
Lower and upper limit of the transition zone and factor F for any date.
The limits of the midi-job transition zone (Übergangsbereich) under § 20 Abs. 2 SGB IV, called the sliding zone (Gleitzone) until June 2019, and the yearly factor F used to calculate the income subject to contributions.
Endpoints and calls
#| Access | Call |
|---|---|
| REST API | GET /hr/uebergangsbereich |
| History | GET /hr/uebergangsbereich/verlauf |
| SDK JavaScript | qk.hr.uebergangsbereich(…) |
| SDK Python | qk.hr.uebergangsbereich(…) |
| CLI | qk uebergangsbereich --datum 2026-01-01 |
| MCP tool | hr_uebergangsbereich |
Parameters
#| Name | Type | Required | Default | Allowed | Description |
|---|---|---|---|---|---|
datum | date (YYYY-MM-DD) | no | heute | Effective date in the format YYYY-MM-DD. Defaults to today. |
The API rejects unknown parameters with unbekannter_parameter. In addition there are format and trennzeichen, see CSV.
Response fields
#| Field | Type | Meaning |
|---|---|---|
datensatz | Text | Dataset id |
datum | Date | Requested effective date |
bezeichnung | Text | Gleitzone (sliding zone, until June 2019) or Übergangsbereich (transition zone) |
untergrenze_monat | Decimal | Start of the transition zone per month |
obergrenze_monat | Decimal | End of the transition zone per month |
faktor_f | Decimal | Factor F for the year, null until it is announced |
gueltig_ab | Date | Start of validity of the value |
gueltig_bis | Date or null | End of validity, null until a successor is set |
rechtsgrundlage | Text | Law or ordinance |
quelle | Object | Title and URL of the source the value is based on |
faktor_f_rechtsgrundlage | Text or null | Legal basis of factor F |
faktor_f_definition | Text | How factor F is calculated for the effective date: 30% until September 30, 2022, 28% until 2026, from 2027 the health insurance rate plus 15%, each divided by the total social security contribution rate |
faktor_f_quelle | Object or null | Source of factor F |
formel | Object or Text | The calculation in words or as a formula |
hinweise | List | Limits of the values or the calculation, in sentences |
lizenz | Text | Terms of use for the values |
stand | Date | Date of the last check against the source |
zitat | Text | Ready-made sentence for citing, with value, validity, legal basis and source |
datenstand | Text | Id of the data snapshot: date and sequence number of the last changelog entry (/v1/aenderungen) affecting this dataset. The same datenstand means unchanged content, useful for auditors and for comparing two requests |
Example
#Call with datum = 2026-01-01. The response is generated by the same code that answers the API.
api.quellenkontor.dev/v1/hr/uebergangsbereich?datum=2026-01-01
Zur API-Doku →This is how an agent calls the tool. Server setup is described in the MCP docs.
History
#Every level since 2015 in one call, as JSON or with format=csv as CSV. The last two levels:
Error cases
#| Status | Code | When |
|---|---|---|
| 400 | ungueltiger_parameter | wrong format |
| 400 | unbekannter_parameter | a parameter this dataset does not have |
| 404 | kein_wert | outside the coverage (from 2015) or the value for this period has not been promulgated yet |
| 401, 429 | see errors | all error codes |
Schema for MCP
#This is how the MCP server describes the arguments of the tool hr_uebergangsbereich:
Source and freshness
#| Item | Content |
|---|---|
| Source | § 20 Abs. 2 and 2a SGB IV, official notices of factor F |
| License | Values from official works (§ 5 UrhG). Use of the compilation under the Quellenkontor terms of use. |
| Updates | yearly and whenever the limits change |
| Coverage | Germany, from 2015 |
| Last checked | September 23, 2026 |
| Next expected change | factor F for 2027 by December 31, 2026, from 2027 under a new formula (GKV-Beitragssatzstabilisierungsgesetz) |
Overview with tables and questions about the dataset: Midi-job transition zone. Report an error through the contact form.
Something missing or unclear? Write to us and we will extend the docs.