Acerta: payroll provider facts

Who it is

The payroll provider is Acerta Sociaal Secretariaat vzw (enterprise number 0473.329.910), with its registered office at Heizel Esplanade in Brussels. It belongs to a group that also includes Acerta Ondernemingsloket vzw, Acerta Sociaal Verzekeringsfonds vzw and Acerta Consult.

Acerta has existed under that name since 1 January 2001, when Boerenbond and the Christian employers' federation VKW merged their payroll providers, social insurance funds and child benefit funds.

Sources: Acerta, privacy en cookies (juridische entiteiten van de groep) (checked on 11 November 2026); Acerta, historiek: naam Acerta sinds 1 januari 2001 (checked on 11 November 2026)

Approval

Acerta 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 250, as ACERTA, Erkend sociaal secretariaat, 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 Acerta should therefore carry number 250.

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

Acerta lists 26 offices in Belgium.

According to Acerta, more than 40,000 employers rely on its payroll service, accounting for more than 660,000 payroll calculations a month. No year is given.

According to its offer page, Acerta serves starters, the self-employed, employers, bookkeepers and accountants. SMEs and larger companies get the Connect payroll tool.

Sources: Acerta, onze 26 kantoren in België (checked on 11 November 2026); Acerta, oplossingen: sociaal secretariaat (checked on 11 November 2026); Acerta, over Acerta: het aanbod van de groep (checked on 11 November 2026)

Services in the same group

The same group runs a business one-stop shop and a social insurance fund for the self-employed. For child benefit, Acerta names Infino as a partner. We found no in-house external prevention service on acerta.be.

Sources: Acerta, oplossingen: ondernemingsloket (checked on 11 November 2026); Acerta, oplossingen: sociaal verzekeringsfonds (checked on 11 November 2026); Acerta, over Acerta: het aanbod van de groep (checked on 11 November 2026)

Public pay and indexation information

Acerta publishes a gross to net calculator and press releases with a wage indexation forecast per joint committee, such as the one of 29 October 2026 for January 2027.

Sources: Acerta, bruto-netto-calculator (checked on 11 November 2026); Acerta, persbericht met indexprognose voor januari 2027 (29 oktober 2026) (checked on 11 November 2026)

Price and termination

On 11 November 2026 acerta.be showed no price for the payroll service: the price follows from a quote.

Under the general terms of 1 May 2026 the contract runs for three full calendar years and then for an indefinite period. You terminate by registered letter, with six months' notice starting on 1 July and ending on 31 December; the notice must be served at least three working days before 1 July.

Sources: Acerta, oplossingen: sociaal secretariaat (checked on 11 November 2026); Acerta, algemene bepalingen sociaal secretariaat van 1 mei 2026 (PDF) (checked on 11 November 2026)

Comparing with other payroll providers

On the comparison page Acerta 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)