Cash Flow
Revenue is on the books but the bank balance is tight. You've delivered the work and sent the invoices; payments are slow. Or you're spending on tools and payroll before client payments land. Cash flow is the movement of money in and out of your business. Positive cash flow means you have money when you need it. Many profitable businesses fail because they run out of cash between revenue and expenses. Managing accounts receivable and timing of payments keeps cash flowing.
Same revenue, different runway. Two businesses each do $20k/month. One invoices at month-end with net 45 and pays expenses as they come; the other invoices in milestones with net 15 and lines up payables with receivables. The first is always chasing cash; the second has a buffer. Cash flow is a timing game. Shorten the gap between doing the work and getting paid; align outflows with inflows.
Positive cash flow isn't the same as profit. You can be profitable on paper and run out of cash.
How to improve cash flow
Speed up receivables. Invoice sooner and more often. Use milestones: 50% on signing, 50% on delivery instead of one invoice at the end. Shorten payment terms—net 15 instead of net 45. Invoicing automation sends invoices and reminders on schedule so you're not waiting or forgetting. The goal is to turn delivered work into money in the bank as fast as possible.
Align outflows with inflows. Don't pay big expenses the same week you're waiting on three client checks. Schedule payables to land after you typically receive payments. If you know Q4 is slow, build a buffer in Q3. Simple documentation of when money comes in and goes out helps you see the gaps.
Reduce the size of the gap. If you're always 30–45 days behind (work done → invoice sent → payment received), that's a month and a half of runway you're funding. Accounts receivable discipline—clear terms, milestone billing, automated reminders—shrinks that gap.
What breaks
Treating revenue and cash as the same. Revenue is when you earn it; cash is when you have it. A $50k project that pays in 60 days doesn't help you pay this month's bills. Plan on when money actually lands.
No system for receivables. Invoicing when you remember, following up when you have time—that's a recipe for late payment and cash crunches. Workflow automation for invoicing and reminders turns receivables into a process, not a scramble.