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How Long Does Core HR Implementation Take? Timeline & ROI

calendar_today July 29, 2026 person mchavan@g2.com (Mahima Chavan) domain g2

Most Core HR softwares (also known as HRIS, or human resource information systems) are implemented faster than buyers expect. According to G2 Data, 43% of implementations go live within four weeks, 81% within three months, and two-thirds of buyers achieve ROI within a year.

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