Guides
Practical guides for creating invoices and quotations, getting paid on time and writing clear documents for your customers. Every guide is free to read.
Invoice and quotation basics (12)
Start here if you are new to business documents.
- Invoice vs Quotation: What Is the Difference?
- What Information Should an Invoice Include?
- How to Create an Invoice: Step-by-Step Guide
- How to Create a Professional Quotation
- Quote vs Estimate vs Invoice
- Invoice vs Receipt
- Quotation vs Proposal
- Proforma Invoice vs Invoice
- Purchase Order vs Invoice
- Credit Note vs Invoice
- Statement of Account vs Invoice
- Invoice PDF vs Image: Which File Should You Send?
Invoicing and getting paid (28)
Terms, numbering, sending, deposits and payment follow-ups.
- Invoice Payment Terms Explained
- Invoice Numbering: Formats and Examples
- How to Calculate Tax and Discounts
- How to Send an Invoice Professionally
- When Should You Send an Invoice?
- 10 Common Invoicing Mistakes to Avoid
- How to Invoice as a Freelancer
- How to Follow Up on an Unpaid Invoice
- How to Handle an Invoice Dispute
- Recurring Invoices Explained
- Retainer Invoice: Monthly Fees and Included Hours
- Deposit Invoice: Request an Upfront Payment
- Final Invoice: Show Deposits and the Balance Due
- Milestone Invoicing: Billing Schedule Example
- How to Record a Partial Invoice Payment
- How to Invoice Partial Deliveries
- How to Calculate Billable Hours
- How to Invoice Reimbursable Expenses
- Invoice Description Examples for Line Items
- Invoice Unit of Measure: Pieces, Packs, Hours
- Service Date vs Invoice Date
- How to Add a Purchase Order Number
- How to Show Currency Clearly on an Invoice
- One Invoice for Multiple Locations
- Bilingual Invoice PDF: Clear Labels
- Invoice PDF Cut Off When Printing? Checklist
- How to Organise Invoice PDF Files
- Invoice Tracker in Excel
Writing better quotations (14)
Pricing, scope, validity and turning a quote into an invoice.
- How to Write a Quotation for Services
- How to Price Services Without Undercharging
- Quotation Validity Period
- Quotation Assumptions and Exclusions
- Optional Items in a Quotation
- Three-Package Quotation: Basic, Standard, Premium
- How to Quote Setup and Monthly Fees
- Minimum Order Quantity in a Quotation
- Delivery Lead Time in a Quotation
- How to Revise a Quotation After a Scope Change
- Quotation Follow-Up Email Templates
- Quotation Acceptance Checklist
- How to Convert a Quotation to an Invoice
- How to Compare Supplier Quotations
Invoice examples by industry (29)
Ready-to-follow invoice examples for specific trades and services.
Quotation examples by industry (23)
Quotation examples with the details each type of job needs.
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