Free SMB finance resource site

Practical tools and plain-English guides for small business finance.

Create invoices and proposals. Estimate tax reserves. Compare payment fees. Understand cashflow, late payments, and hiring decisions. Free to use, no account required.

Free tools

Tools you can run in five minutes.

Each one returns a clear number or a draft you can act on the same day. No account required to try them.

  • Invoicing

    Invoice Generator

    Create professional invoices with built-in completeness checks.

    Open invoice generator
  • Proposals & Quotes

    Proposal Builder

    Structured B2B and B2C proposals you can convert to invoices.

    Open proposal builder
  • Taxes

    Tax Survival Calculator

    Estimate the reserve you should set aside before spending operating cash.

    Open tax survival calculator
  • Payment Gateways

    Payment Gateway Optimizer

    Compare provider fees against your real volume and product mix.

    Open payment gateway optimizer
  • Cashflow

    Profit Leak Analyzer

    Find quiet costs and assumptions eating your margin.

    Open profit leak analyzer
  • Late Payments

    Late Payment Recovery

    Reminder drafts and a follow-up cadence for overdue invoices.

    Open late payment recovery

Featured guides

Plain-English explainers.

The most-read deep dives across invoicing, taxes, gateway fees, and cashflow.

  • Cashflow

    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.

    Read this guide
  • Payment Gateways

    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.

    Read this guide
  • Late Payments

    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.

    Read this guide
  • Invoicing

    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.

    Read this guide

FAQ

Common questions.

Is everything on SMBHelper really free?
Yes. Tools, guides, glossary, templates, and insights are all free to use without an account. Optional sign-in lets you save tool sessions to your workspace.
Do I need to sign up to use the tools?
No. Open any tool and start using it. Sign in only if you want to save sessions, manage customers, or generate invoice and proposal records.
How is the site funded?
Display advertising. Ads are clearly labelled, kept away from tool actions, and never disguised as content or navigation. We don't run affiliate programmes.
Is the content financial advice?
No. Everything on the site is educational. For decisions with significant consequences, talk to a qualified professional in your jurisdiction.