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Invoicing & Billing >

Manage your Business

Start with the basics

What is an invoice? ➝

Request payment for completed work.

What is a receipt? ➝

Proof of payment for goods or services.

What is an estimate? ➝

Approximate cost before starting a job.

What is a bill? ➝

How contractors charge and collect payment.

What is a quotation? ➝

A fixed price offered before a project.

Invoicing Guide ➝

The Invoice Fly Guide to Professional Invoicing.

Invoicing & Billing ›

See all guides

What Is an Invoice? Definition, Types & How to Send One

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Invoice Tracking: How to Keep Invoices Organized

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Invoice Payment Terms: A Complete Guide for Contractors

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How to Send an Invoice: Step-by-Step for Service Businesses

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Topics Invoicing Estimating Quotes Billing Receipts

Manage your business ›

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Best Contractor CRM Software For Small Businesses

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How to Write a Business Plan for a Service Business

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Lead Generation for Contractors: Strategies That Work

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Bookkeeping for Contractors: A Simple Guide to Get Started

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Topics Start your business Marketing Financial Management Accounting Legal & Taxes Human Resources

Industries ›

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Contractor Sales Guide For Service Professionals

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General Contractor Job Description: Roles & Responsibilities

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General Liability Insurance for Contractors: What You Need

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Best Contractor Apps for Service Professionals in 2025

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Academy

Expert how to’s & step-by-step guides, and industry knowledge for contractors.

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Free Templates

Explore free templates and create estimates, quotes, invoices, bills and receipts.

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Free Generators

Generate Estimates, Quotes, Invoices, Bills, Receipts, and Proformas online.

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Free Calculators

Use our free calculators: Service Price, Profit Margin, Net Salary, VAT, Break-Even…

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