Plainhub blog

Money, in plain language

Short guides on runway, burn, pricing and getting paid. Written for founders, not accountants. If you only need a term defined, the glossary has each one in a sentence.

Revenue7 min read

Rule of 40: formula, benchmarks, and when it lies

Revenue growth plus profit margin should reach 40%. How to compute it honestly, how few companies manage it, and the stages where the score means nothing.

Read the guide
People6 min read

How to pay yourself as a founder or owner

Set a personal floor, fill the company's cash reserve first, then pay yourself a fixed monthly amount. How it works as a draw, salary or dividend, with numbers.

Read the guide
People8 min read

Fractional CFO cost, and when it is worth it

Fractional CFO cost by hourly, retainer and project pricing, what it takes from a startup's runway, and how to tell if you need one yet.

Read the guide
Tools6 min read

Fathom HQ alternative for startup founders

Fathom (fathomhq.com) reports on your Xero, QuickBooks or MYOB books. What it does and costs, checked on its site, who it suits, and when founders need more.

Read the guide
Cash flow7 min read

Cash flow problems in a growing business

Profitable on paper and short of cash: how to tell a timing problem from a burn problem, find where the money is stuck, and free it before payroll day.

Read the guide
Cash flow6 min read

When will you run out of cash? Find the month

Estimate cash runway, then add hires, annual bills and customer changes to a monthly calendar. See what moves the cash-out month and when you need to act.

Read the guide
Revenue8 min read

What is MRR? Meaning, calculation and MRR vs ARR

MRR is monthly recurring revenue. Learn how to calculate it step by step with a worked month, what to leave out, and when to use MRR vs ARR.

Read the guide
Revenue8 min read

ARR meaning: what it is and how to calculate it

ARR means annual recurring revenue: MRR times 12. See how to calculate it from a real customer list, what to leave out, and how it differs from revenue.

Read the guide
People7 min read

True cost of an employee: salary and cash runway

Price a hire the way your bank account sees it: salary plus employer taxes, pension, tools and one-offs, then the runway it spends and what it must earn back.

Read the guide
Cash flow8 min read

Burn rate formula: gross, net and cash burn

The burn rate formula, gross vs net burn, and what cash burn rate means, worked through three months of bank statements with one example.

Read the guide
Revenue10 min read

Customer concentration: when one is too big

Customer concentration worked through: top-1 and top-3 share, runway with and without your biggest customer, and what to do this quarter.

Read the guide
Revenue7 min read

SaaS metrics by stage: what to track now

Which SaaS metrics matter depends on your stage. What to track before revenue, with your first customers, once sales repeat, and when you spend on growth.

Read the guide
Cash flow9 min read

Default alive or default dead: the calculation

Paul Graham's test, worked through: the four inputs, the month-by-month projection, a spreadsheet you can copy, and one company that comes out both ways.

Read the guide
Fundraising6 min read

Burn multiple: what yours says and what to fix

Burn multiple is net burn divided by net new ARR. How to read it across quarters, take a bad quarter apart to find the cause, and fix the side that moved.

Read the guide
Getting paid6 min read

Getting paid on time: one invoice, day by day

Follow one €24,000 invoice from contract to cash, see where the days leak away, and set up the reminders, late-payment rights and dates that close the gap.

Read the guide
Getting paid5 min read

What does net 30 mean, and should you offer it?

Net 30 means payment is due 30 calendar days after the invoice date. The variants with real dates, and what net 30 or net 60 costs a startup in cash.

Read the guide
Pricing7 min read

Raising prices: how many customers can you lose?

Before you raise prices, work out how many customers you can lose and still come out ahead. The break-even math, the order to raise in, and the email to send.

Read the guide
Fundraising6 min read

How much runway should your funding round buy?

Size a round from the burn of the team the money will build, a plan that runs late, and six months to raise again. A worked seed example with three sizes.

Read the guide
Spending7 min read

Cost cutting strategies: a plan for cash runway

Start from the months of runway you need, work out the burn that gets you there, then cut in an order that protects revenue. A worked example, timing included.

Read the guide
Habits9 min read

Monthly business review and report template

A 30-minute monthly business review for founders, worked through one month, plus a one-page monthly financial report template for your board.

Read the guide