SaaStr Advises B2B Startups to Collect 100%+ of MRR in Cash Monthly
Jason Lemkin recommends B2B startups track and hit at least 100% monthly cash collections against MRR, with 110% as the target to extend runway.
Lemkin Sets Cash Collections Benchmark
Jason Lemkin stated that B2B startups should collect at least 100% of MRR in cash each month, with an ideal target of 110%. According to SaaStr, falling below 100% signals a finance process failure and indicates runway may be shorter than expected. The advice applies until companies establish a strong VP of Finance or CFO role.
Invoicing Gaps Reduce Collections
Most B2B startups struggle to collect cash outside payment gateways, with performance often declining as they move upmarket. Larger customers and added services shift payments to Net 30 or Net 60 invoices that receive no follow-up without dedicated finance staff. Lemkin noted that 50%+ of such invoices require active chasing. Annual prepay deals, prepaid upsells, and annual renewals can push collections above 100% of MRR. Lemkin reported hitting a 110% goal consistently and reaching cash-flow positive at $5m ARR partly due to this metric.
Impact on Runway and Commissions
Startups collecting only 60-70% of MRR often remain unaware because they do not track the ratio. Paying 15-20% sales commissions upfront on unpaid invoices can reduce effective cash intake to around 50% of MRR. According to SaaStr, aged receivables increase write-off risk. In an example of $100k MRR with $200k monthly costs and $1m cash on hand, 110% collections produced roughly 18 months of runway while 60% collections shortened it to 6-7 months under identical growth and expense assumptions.
Recommended Fixes
Lemkin suggests hiring a contractor for 4-8 hours weekly focused solely on accounts receivable to reach the 100%+ target. When cash is tight, tying rep payouts to cash receipt aligns incentives. Setting collections as a top weekly team goal increases results. AI agents integrated with tools such as Bill.com, Quickbooks, and Brex can automate 90% of invoice issuance, reminders, and tracking. According to SaaStr, this automation accelerates cash arrival and extends runway without added headcount.
