UCM: payroll provider facts

Who it is

The payroll provider is the non-profit Secrétariat Social des Classes Moyennes, abbreviated Secrétariat Social UCM (enterprise number 0407.571.234), Chaussée de Marche 637 in Namur. It belongs to Groupe UCM, which also includes a business one-stop shop, a social insurance fund and the Camille child benefit fund.

The payroll provider was approved by ministerial decree of 4 July 1946 under number 200; according to the Crossroads Bank for Enterprises the non-profit has existed since 30 April 1945. The UCM movement has defended the self-employed and SMEs since 1926.

Sources: KBO Public Search, Secrétariat Social des Classes Moyennes (0407.571.234) (checked on 11 November 2026); UCM, à propos d'UCM (groupe et historique) (checked on 11 November 2026); UCM, check-list engagement travailleur met erkenning nr. 200 (PDF) (checked on 11 November 2026)

Approval

UCM is on the list of approved payroll providers for employers published in the Belgian Official Gazette on 15 July 2025 (situation on 20 June 2025), under number 200, as UCM, SOCIAAL SECRETARIAAT, Sociaal secretariaat voor werkgevers V.Z.W..

Under the royal decree of 28 November 1969 an approved payroll provider is a non-profit that must state its approval number on every document it issues. Your payslip from UCM should therefore carry number 200.

Sources: FOD Sociale Zekerheid, lijst van de erkende sociale secretariaten van werkgevers op 20 juni 2025 (Belgisch Staatsblad 15 juli 2025) (checked on 11 November 2026); Koninklijk besluit van 28 november 1969, art. 44 tot 49 over de erkende sociale secretariaten van werkgevers (Justel) (checked on 11 November 2026)

Offices, clients and target group

UCM gives no total; on 11 November 2026 its Nos espaces UCM page showed eighteen addresses in Brussels and Wallonia.

UCM says that by joining you combine forces with 25,000 employers. We found no number of payroll calculations.

The payroll service targets very small businesses and SMEs, employers hiring their first employee and the non-profit sector in Wallonia and Brussels. The site is in French.

Sources: UCM, trouvez-nous: nos espaces UCM (checked on 11 November 2026); UCM, affiliation au secrétariat social (checked on 11 November 2026); UCM, les atouts du secrétariat social UCM (checked on 11 November 2026)

Services in the same group

The group includes a business one-stop shop, a social insurance fund for the self-employed and the Walloon child benefit fund Camille. For prevention at work, UCM names CESI as a partner.

Sources: UCM, politique vie privée du guichet d'entreprises UCM (checked on 11 November 2026); UCM, politique vie privée de la caisse d'assurances sociales UCM (checked on 11 November 2026); UCM, politique vie privée de Camille (allocations familiales) (checked on 11 November 2026); UCM, nos partenaires: CESI (prévention) (checked on 11 November 2026)

Public pay and indexation information

UCM publishes a page with its own estimates of the next wage indexation per joint committee.

Source: UCM, inflation et indexations salariales: estimations par secteur (checked on 11 November 2026)

Price and termination

On 11 November 2026 ucm.be showed no price for the payroll service.

The organic regulation and the membership agreement are not published online, so we did not find the termination rules. Ask for them before you sign.

Source: UCM, affiliation au secrétariat social (checked on 11 November 2026)

Comparing with other payroll providers

On the comparison page UCM sits next to seven other approved payroll providers, in alphabetical order and with the same data: approval number, offices, own client figures, target group and services in the group. There is no ranking and no rating.

Source: FOD Sociale Zekerheid, lijst van de erkende sociale secretariaten van werkgevers op 20 juni 2025 (Belgisch Staatsblad 15 juli 2025) (checked on 11 November 2026)