MRR (Monthly Recurring Revenue) is your normalized monthly income — the foundation of SaaS valuation. ARR (Annual Recurring Revenue) = MRR Ã 12. SaaS companies are typically valued at 8â12x ARR at Series A (Source: Statista SaaS 2026), scaling to 20â30x at public market levels. Key MRR types: New MRR (new customers), Expansion MRR (upgrades), Churned MRR (lost customers), Net New MRR = Total. A 10% monthly net new MRR growth rate is considered healthy for early-stage SaaS.