Library

Guides

Practical, plain-English explainers on the everyday finance and operations questions small businesses ask.

  • Cashflow 6 min

    How to calculate gross margin vs net profit

    A worked example of the two numbers every owner should know — what they include, what they hide, and how to use both to make decisions.

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  • How to compare card, wallet, and bank transfer fees

    A side-by-side look at the fee structures behind cards, digital wallets, and bank transfers — and which one wins for which payment size.

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  • How to write a late payment reminder email

    A short, calm, and effective format for reminder emails — with examples for first, second, and final reminders.

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  • Invoicing 5 min

    What makes an invoice look professional

    The visual and structural details that signal credibility — and the small mistakes that quietly mark an invoice as amateur.

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  • Invoicing 6 min

    How to choose payment terms for invoices

    How to pick payment terms that protect cashflow without scaring off serious customers — and how to evolve them over time.

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  • How to price a service proposal

    A practical framework for pricing a B2B service proposal — covering scope, value, anchoring, and the trade-offs between hourly, project, and retainer pricing.

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  • Domestic vs international payment fees

    Why your effective payment rate jumps as soon as cross-border transactions appear, and how to plan for it.

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  • Stripe vs PayPal: how their fee logic differs

    Headline rates look similar. The trade-offs underneath them are not. A practical breakdown for small businesses.

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  • Cashflow 5 min

    Gross margin vs net profit, explained

    Two of the most-confused numbers in small business finance — what each one tells you and which to optimize first.

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  • Freelancer vs employee cost basics

    How to compare the true cost of a freelancer and an employee — including on-costs, downtime, and equipment.

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  • How to follow up on overdue invoices

    A four-step cadence that recovers most overdue invoices without souring the customer relationship.

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  • How payment gateway fees actually work

    Percentage rate, fixed fee, currency conversion, refunds, chargebacks — what each component means and where SMBs typically lose margin.

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  • Taxes 6 min

    How much tax should a small business reserve?

    A simple framework for setting aside the right amount of tax every month so quarterly or annual filing does not blindside you.

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  • What to include in a business proposal

    The eight sections every B2B proposal needs, and what to cut so the document does not collapse under its own weight.

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  • Invoicing 5 min

    Invoice due date: what it actually means

    The difference between 'Net 30' and 'due in 30 days', and how due dates affect your right to chase payment.

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  • Invoicing 7 min

    How to create a professional invoice

    A practical, plain-English walkthrough of every field a small business invoice should contain — and why each one matters.

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