Complete Guide
How to Create Invoices
An invoice is a document that you send to a client requesting that they pay you for the work that you have done. This guide gives an overview of how to create invoices, depending on the method, type and what you should include in each section. An invoice is a record of the work you have done, the charge for the work and when payment is required. An accurate invoice can help prevent disputes and ensure timely payment, which are essential for the smooth operation of a business. The following is a step by step guide to help you create an invoice.
What Is an Invoice?
An invoice is a commercial document and proof of payment, issued by a seller to a buyer showing sales of products or services, and detailing amounts owed to the seller. In simple terms, an invoice is a bill or document provided by a provider or seller to a buyer or client for services or goods supplied.
Whether you’re a freelance graphic designer invoicing your first client, a plumber billing a residential job, or a small business owner managing dozens of monthly accounts, creating clear, professional, timely invoices is one of the most important financial skills you can build.
All invoices should contain several basic parts to provide clarity of the request for payment. The style and design doesn’t matter as much as the content of the invoice. There is no one standardized invoice format, or design, that is largely a personal preference by the person or company issuing the invoice. However, the fields displayed on the invoice: Names, Dates, Items, Terms, and other as we will cover more later, which are essential to communicating the request for payment, and clear documentation of the good or services sold, are somewhat standardized – if not commonly used as best practices.
What Every Invoice Must Include
A legally valid, professional invoice needs the following components. Missing even one can delay payment or invalidate your invoice as an official business record.
Required Invoice Elements
| Element | Description | Example |
|---|---|---|
| Invoice Label | Must clearly say “Invoice” at the top | INVOICE |
| Your Business (personal) Info | Name, address, phone, email, logo | Jane Smith Design / 123 Main St |
| Client (customer) Information | Client name, company, address, contact | Acme Corp / Attn: Accounts Payable |
| Invoice Number | Unique sequential identifier | INV-2025-047 |
| Issue Date | Date the invoice was created | March 15, 2025 |
| Due Date / Payment Terms | When payment is expected | Due April 14, 2025 (Net 30) |
| Itemized Line Items | Each product or service listed separately | Logo Design – 8 hrs @ $95/hr |
| Subtotal | Sum of all line items before taxes/fees | $760.00 |
| Taxes & Fees | Applicable sales tax, VAT, etc. | $53.20 (7% sales tax) |
| Discounts | Any early-pay or volume discounts applied | -$38.00 (5% early pay) |
| Total Amount Due | Final amount owed, prominently displayed | $775.20 |
| Accepted Payment Methods | How the client can pay | ACH, credit card, check, PayPal |
| Notes / Special Terms | Late fees, project scope reference, thank-you | 1.5%/mo late fee after due date |
How to Create an Invoice: Step-by-Step
Step 1: Choose Your Invoicing Method
Not all invoicing methods are created equal. Here’s how the main options compare.
| Method | Best For | Pros | Cons |
|---|---|---|---|
| Invoicing Software (e.g., Invoice Maker) | All business types | Fast, professional, auto-numbering, payment tracking | Monthly cost |
| Word / Google Docs Template | Occasional invoicing | Free, simple | Manual, error-prone, no tracking |
| Excel / Google Sheets | Those comfortable with spreadsheets | Good for calculations | Still manual, clunky to send |
| Accounting Software (QuickBooks, Wave) | Businesses needing full bookkeeping | Integrated with accounting | Overkill for basic invoicing |
| Paper Invoices | Trades / in-person service businesses | Tangible, no tech required | Slow, no confirmation, hard to track |
For any business sending more than a handful of invoices per month, dedicated invoicing software like Invoice Maker pays for itself almost immediately in time saved and faster payments. Having a standardized invoicing process will allow you to focus on delivering products and services to customers, not paperwork.
Step 2: Fill In Your Business Information
Start with your business information at the top of every invoice:
- Business name (or your full name if freelancing)
- Your logo (adds professionalism, and branding — clients are measurably more likely to pay faster)
- Address
- Phone number
- Email address
- Website (optional but recommended)
If you are a registered business, include your EIN (Employer Identification Number). International sellers may also need to include a VAT number or GST/HST number depending on jurisdiction.
Step 3: Add Client Details
Directly below your information, include your client’s:
- Full name or company name
- Billing address
- Contact name (especially important for larger companies — make sure it’s going to the right person or department)
- Email address
- Phone number (optional)
Tip: For larger clients or government contracts, ask for a purchase order (PO) number, or work order upfront. Many accounts payable departments won’t process an invoice without one. Purchase and work orders also help keep job requests organized, especially on larger projects where you may have stages or incremental invoices.
Step 4: Assign a Unique Invoice Number
Every invoice needs a unique invoice number. This prevents duplicates, allows for tracking of status of payment, and is required for proper bookkeeping. Common formats include:
- Sequential: 001, 002, 003 — simple, works well for low-volume businesses
- Date-based: 2025-03-001 — easy to sort chronologically
- Client-based: 2025-ACME-001 — useful when managing many clients
- Combined: INV-2025-ClientName-001 — the most robust option
The format isnt as important as picking one system and committing to it. At Invoice Maker we standardized invoice numbers preventing duplicates so you don’t have to worry about this.
Step 5: Set the Issue Date and Due Date
- Issue date: The date you’re creating and sending the invoice.
- Due date: The date payment is expected. Commonly expressed as Net 15, Net 30, or Due on Receipt (see the Payment Terms section below).
Setting a clear, explicit due date — rather than just writing “Net 30” — meaningfully increases on-time payment rates. Write it out in full: “Payment due: April 14, 2025.”
Step 6: Itemize Your Products or Services
This is the heart of the invoice. Never lump everything into a single line item. For each deliverable, include:
- Description — Be specific. “Website redesign – 20 hours @ $75/hr” is far better than “web work.”
- Quantity or hours
- Unit price / hourly rate
- Line total
- Any reimbursable expenses (mileage, materials, software, etc.) on their own line items
Example line item table:
| Description | Qty / Hrs | Unit Price | Total |
|---|---|---|---|
| Brand strategy consultation | 3 hrs | $150.00 | $450.00 |
| Logo design (3 concepts + revisions) | 1 | $600.00 | $600.00 |
| Business card design | 1 | $150.00 | $150.00 |
| Stock photo licensing (reimbursable) | 1 | $49.00 | $49.00 |
| Subtotal | $1,249.00 | ||
| Sales tax (7%) | $87.43 | ||
| Early pay discount (5%) | -$62.45 | ||
| Total Due | $1,273.98 | ||
Step 7: Calculate Totals, Taxes, and Discounts
- Add up all line items to reach your subtotal
- Apply applicable sales tax or VAT — rates vary by state, country, and service type
- List any discounts (early payment, volume, loyalty) as a line item with a negative value
- Display the final total due prominently — make it impossible to miss
Invoice Maker software handles all calculations automatically. Manual math errors are one of the most common causes of disputed invoices, so this alone is worth the upgrade.
Step 8: Specify Payment Terms and Methods
Spell out exactly how and when you expect to be paid:
- Due date (written as a full calendar date, not just “Net 30”)
- Accepted payment methods: ACH/bank transfer, credit card, check, PayPal, Venmo, Zelle, etc.
- Late fees: e.g., “A 1.5% monthly fee will be applied to balances unpaid after the due date.”
- Early payment incentive: e.g., “2% discount if paid within 10 days” or “pay now by credit card for $x off”
- Payment instructions: bank details, a payment link, or mailing address for checks
One more thing worth knowing: invoices accompanied by a polite, courteous cover email are 12% more likely to be paid within a week.[8] The tone of your outreach matters.
Step 9: Add Notes and a Personal Touch
The notes section is one of the most underused parts of an invoice. Put it to work:
- Reference the project agreement or contract
- Include specific bank transfer instructions
- Add a simple thank-you (“Thank you for your business!”)
- Note any upcoming work or next steps
- Call out your late fee policy
A simple “Thank you — it’s a pleasure working with you” can meaningfully improve both client relationships and payment speed. Don’t skip it.
Step 10: Review, Export as PDF, and Send
Before you hit send, run through this checklist:
- ✅ All math is correct
- ✅ Client name and address are accurate
- ✅ Invoice number is unique
- ✅ Due date is clearly stated
- ✅ Payment details are complete and accurate
Always export as a PDF — it preserves your formatting across every device and email client. Attach it to a professional email with a clear subject line:
Invoice #2025-047 — Brand Design Project — Due April 14, 2025
Types of Invoices
Not all invoices are the same. Understanding which type fits your situation can help you be more professional, and get paid faster.
Invoice Types at a Glance
| Invoice Type | When to Use | Who Uses It |
|---|---|---|
| Standard Invoice | Completed work or delivered goods — the default | All businesses |
| Pro Forma Invoice | Before work begins; provides cost estimate, not a payment request | Service providers, international sellers |
| Recurring Invoice | Same amount billed on a regular schedule | SaaS, subscription services, retainer clients |
| Progress / Interim Invoice | Milestone billing on large, multi-phase projects | Contractors, construction, consultants |
| Final Invoice | Last invoice upon project completion; may reference prior progress invoices | Project-based businesses |
| Credit Invoice (Credit Memo) | Issuing a refund, correction, or discount — always a negative total | Any business correcting a prior invoice |
| Debit Invoice (Debit Note) | Increasing the amount owed (e.g., additional hours discovered) | Consultants, hourly service providers |
| Commercial Invoice | International shipments — required for customs clearance | Importers, exporters, international sellers |
| Timesheet Invoice | Billing based on logged hours and hourly rate | Freelancers, lawyers, consultants |
| Retainer Invoice | Advance payment collected before work begins | Attorneys, marketing agencies, consultants |
| Consolidated Invoice | Combines multiple smaller invoices into one | B2B relationships with frequent small transactions |
| Past-Due Invoice | Resent invoice noting overdue status, often with late fee added | Any business following up on unpaid invoices |
| Expense Report Invoice | Employee reimbursement for business-related expenses | Corporations, agencies |
Choosing the Right Invoice Type
Use a Pro Forma Invoice when:
- You need client approval before beginning work
- You’re quoting a large custom project
- Your client needs budget authorization from multiple stakeholders
- You’re beginning an international shipment and need a customs estimate
Use a Progress/Interim Invoice when:
- A project spans weeks or months
- You want to protect your cash flow on large contracts
- The contract specifies milestone-based payments (e.g., 30% deposit, 40% at midpoint, 30% on delivery)
Use a Recurring Invoice when:
- You charge the same amount monthly or quarterly
- You manage retainer clients
- You offer subscription-based services
Invoicing by Service Type
Different industries have different norms, timelines, and expectations around invoicing. Here’s what you need to know for the most common service types.
Freelancers & Creative Professionals
Key considerations:
- Charge a deposit (typically 25–50%) upfront using a pro forma or retainer invoice before starting any project
- Define scope clearly in line items to prevent scope creep disputes
- Specify revision limits: “Includes up to 2 rounds of revisions”
- Use Net 14 or Net 15 terms — freelancers should not offer Net 30 as a default
- Include a kill fee clause reference for projects cancelled mid-way
Recommended invoice types: Standard, Pro Forma, Progress, Final
Contractors & Trades (Plumbing, Electrical, HVAC, Landscaping, etc.)
Key considerations:
- Always collect a deposit before material procurement
- Use progress invoices for jobs exceeding one day of work
- Itemize materials separately from labor — clients and accountants both appreciate the transparency
- Reference permit numbers or work order numbers on the invoice
- Include lien waiver language if applicable in your state
- Construction and trades have the longest average collection period (67 days)[7] — clear late fee terms are essential
Recommended invoice types: Pro Forma (estimate), Progress, Final, Past-Due
Sample trades line item structure:
| Description | Qty | Unit | Total |
|---|---|---|---|
| Labor – plumbing installation | 6 | hrs @ $95 | $570.00 |
| Materials – copper fittings (itemized) | 1 | lot | $213.40 |
| Materials – main shutoff valve | 1 | unit | $87.50 |
| Permit fee (reimbursable) | 1 | $75.00 | |
| Subtotal | $945.90 | ||
Consultants & Professional Services
Key considerations:
- Use retainer invoices to lock in consistent cash flow before work begins
- Time-track meticulously — invoice disputes often arise from vague hour descriptions
- Include a reference to your consulting agreement or Statement of Work (SOW)
- For ongoing engagements, consider consolidated monthly invoices
- Professional services average 52 days to payment[7] — establish clear late fee terms from the start
Recommended invoice types: Retainer, Timesheet, Recurring, Standard
Small Business Product Sellers
Key considerations:
- Include item SKU or product code for easy inventory reconciliation
- Reference purchase order numbers
- Specify shipping terms (FOB, delivered, etc.) and when title passes to the buyer
- For international sales, use a commercial invoice with full customs details (HS codes, country of origin, declared value)
- Offer multiple payment methods — reducing friction at checkout accelerates payment
Recommended invoice types: Standard, Commercial (international), Consolidated
SaaS & Subscription Businesses
Key considerations:
- Automate recurring invoices entirely — manual billing at scale is error-prone and unsustainable
- Align invoice dates with billing cycle (monthly, quarterly, annual)
- Show the subscription period clearly: “March 1, 2025 – March 31, 2025”
- Prorate partial months on a line item — don’t bury it in a footnote
- Send invoices at least 3–5 days before automatic charges to reduce chargebacks
Recommended invoice types: Recurring, Credit/Debit Memo (for adjustments)
Payment Terms Explained
Payment terms define when you expect to be paid — and they have a direct, measurable impact on your cash flow.
Common Payment Terms
| Term | Meaning | Best Used When |
|---|---|---|
| Due on Receipt | Payment expected immediately upon receiving invoice | Small projects, new clients, high-trust transactions |
| Net 7 | Payment due 7 days from invoice date | Freelancers, small jobs |
| Net 14 | Payment due 14 days from invoice date | Service businesses, standard projects |
| Net 30 | Payment due 30 days from invoice date | Established B2B relationships, larger companies |
| Net 60 / Net 90 | Payment due 60 or 90 days from invoice date | Large enterprise clients, government contracts |
| 2/10 Net 30 | 2% discount if paid within 10 days; full amount due in 30 | Incentivizing faster payment from established clients |
| 50% Deposit + Net 30 | Half upfront, half within 30 days of delivery | Large projects, new client relationships |
| EOM (End of Month) | Payment due at the end of the month the invoice is issued | Certain industries and established B2B accounts |
Businesses that default to Net 30 or longer are significantly more likely to report cash flow problems.[1] Where possible, push for shorter terms — most clients will accept Net 14 or Net 15 if you simply ask.
How to Send an Invoice
Email (Recommended)
Email is the fastest, most trackable invoicing method. A few best practices to follow every time:
- Subject line:
Invoice #[Number] – [Project/Service Name] – Due [Date] - Body: Brief, professional, and warm. Include the amount due and due date in the email body — don’t make the client open the attachment to find that information.
- Attachment: PDF format. PDFs preserve formatting across all devices and email clients.
- Read receipts: Enable if your email client supports it; alternatively, use invoicing software with built-in open tracking.
Sample invoice email:
Subject: Invoice #2025-047 – Brand Design Project – Due April 14, 2025
Hi [Client Name],
Please find attached Invoice #2025-047 for the brand design project, totaling $1,273.98 and due April 14, 2025.
Payment can be made via ACH transfer, credit card (link below), or check. Please don’t hesitate to reach out with any questions.
Thank you — it’s been a pleasure working with you!
[Your Name]
Invoice Maker’s Online Payment Link
With Invoice Maker, every invoice can include a payment link — allowing clients to pay directly by credit card or ACH without any friction. This alone typically cuts average payment time by 5–10 days compared to check-only invoicing.
Paper Invoices
For trades professionals delivering work in person, a printed invoice handed directly to the client is still common and entirely appropriate. If you go this route:
- Keep a carbon copy or photograph the invoice before handing it over
- Follow up by email to confirm receipt
- Track all paper invoices in a master log or software dashboard
How to Follow Up on Unpaid Invoices
Even the best invoice occasionally goes unpaid. A structured follow-up process protects your cash flow without damaging client relationships.
Follow-Up Timeline
| Timing | Action |
|---|---|
| 3 days before due date | Send a friendly payment reminder |
| On the due date | Send a brief, courteous payment confirmation request |
| 3–5 days after due date | First follow-up: polite but clear. Note the late fee if applicable. |
| 14 days past due | Second follow-up: more direct, offer to address any disputes |
| 30 days past due | Third follow-up: formal demand letter; consider offering a payment plan |
| 60+ days past due | Consider a collections agency, invoice factoring, or small claims court |
Follow-Up Tips
- Don’t avoid it. 60% of business owners say they avoid confronting clients over late invoices out of fear of damaging the relationship — but silence costs more in the long run.
- Reference the invoice number in every follow-up so there’s no confusion.
- Offer to resolve disputes proactively — many delayed payments stem from a question the client never asked.
- Use Invoice Maker’s automatic reminders to handle the 3-day-before and on-due-date touchpoints without any manual effort.
Invoice Best Practices
10 Habits That Get You Paid Faster
- Invoice immediately. Send your invoice the same day work is delivered. Waiting even a week significantly reduces on-time payment rates.
- Use a consistent numbering system. Sequential invoice numbers create an auditable trail and make tracking effortless.
- Use plain language in line item descriptions. “SEO content writing — 5 blog posts, 1,200 words each @ $120/post” is clearer than “content services.”
- Set a shorter default payment term. Switch from Net 30 to Net 14 as your standard. Most clients will accept it without pushback.
- Include a payment link. Reducing the number of steps a client has to take to pay you is one of the highest-leverage improvements you can make to your invoicing.
- Automate recurring invoices. If you bill any client the same amount on a schedule, automate it entirely.
- Maintain a central invoice dashboard. Know the status of every invoice — sent, viewed, due, overdue, paid — at a glance.
- Keep records for at least 7 years. The IRS minimum is 3 years, but many professionals extend to 7 years to cover extended audit windows.
- Apply late fees consistently. State your late fee policy on every invoice and enforce it. Inconsistency trains clients to pay late.
- Personalize your invoices with your brand. Your logo, brand colors, and professional formatting signal that you run a serious business — and clients pay serious businesses faster.
Common Invoicing Mistakes to Avoid
| Mistake | Why It Costs You | Fix |
|---|---|---|
| Vague or missing line item descriptions | Triggers disputes and delays | Be specific — describe exactly what was delivered |
| Forgetting to include a due date | Clients default to “whenever” | Always include a specific calendar date |
| No late fee policy | No incentive to pay on time | Add a 1.5%/month late fee clause |
| Sending in a format other than PDF | Formatting breaks on different devices | Always export and send as PDF |
| Skipping invoice numbers | Chaos in bookkeeping and tax prep | Use consistent sequential numbering from day one |
| Offering Net 60 or Net 90 by default | Ties up your cash flow for months | Start with Net 14 or Net 15 for most clients |
| Bundling everything into one line item | Makes auditing and disputes difficult | Itemize every product, service, and expense |
| Not following up on overdue invoices | Overdue invoices not addressed within 30 days have a high chance of never being paid | Use automated reminders and a defined follow-up process |
| Not keeping backup copies | One corrupted file and your records are gone | Store digital invoices with automatic cloud backup |
| Sending to the wrong contact | Gets lost or ignored; can delay payment indefinitely | Confirm the billing contact before sending your first invoice |
Why Invoicing Matters: The Real Numbers
Poor invoicing practices lead to business and cashflow issue. Creating complete, timely, and accurate invoices is a key to a business success. Defining a standard process for how and when you invoice clients is function of any business. Review this table on impact of late payments in business.
Late Payment Statistics (2026)
| Metric | Statistic | Source |
|---|---|---|
| U.S. small businesses currently owed money | 56% | Intuit QuickBooks, 2025 |
| Average outstanding owed per small business | $17,500 | Intuit QuickBooks, 2025 |
| Invoices overdue by 30+ days | 47% | Intuit QuickBooks, 2025 |
| B2B invoices overdue globally (2024) | 50%+ | Allianz Trade, 2024 |
| Average annual cost of late payments per company | $39,406 | Gateway Commercial Finance, 2025 |
| Late payments caused by invoice errors | 61% | Amalto, 2025 |
| Freelancers who have been paid late at least once | 85% | Remote, 2025 |
| Small businesses that fail due to cash flow issues | 82% | U.S. Chamber of Commerce |
| Construction & trades: average collection period | 67 days | Credit Management News Digest, Oct. 2025 |
| Professional services: average payment time | 52 days | Credit Management News Digest, Oct. 2025 |
Nearly two-thirds of all late payments trace back to errors or unclear information on the invoice itself.[4] Getting your invoices right is the single highest-leverage action you can take to get paid faster. And, its not only invoice correctness that matters. Invoice timing is just as important. Issuing invoices at time of services or good sold helps you get paid faster. Its best practices to issue an invoice as soon as jobs are complete, the longer it takes to send the invoice to the customer the longer it will likely also take them to pay. If you take invoicing your customer seriously, and issue invoices quickly you are far more likely to also be paid promptly. Its also simply more professional.
Invoice Maker: Create Your First Invoice in Minutes
Invoice Maker is built for exactly the kind of business owners and independent professionals described in this guide. With Invoice Maker, you can:
- Create professional, branded invoices in under 2 minutes
- Send invoices directly from the app via email with built-in open tracking
- Accept payments online by credit card, ACH, and more
- Set up recurring invoices for retainer clients and subscriptions
- Track every invoice — sent, viewed, due, paid, and overdue — from one dashboard
- Automate payment reminders so you never have to manually chase a payment again
- Generate reports on outstanding receivables, payment history, and revenue by client
Whether you’re a freelancer sending your first invoice or a growing business managing hundreds of accounts, Invoice Maker scales with you.
Free Invoice Templates (517)
Need a ready-to-use starting point? Invoice Maker offers a full library of more than 500 free, professionally designed invoice templates built for every industry and business type. Each template is available in PDF, Word, and Excel formats — ready to customize with your logo, rates, and payment details in minutes.
Whether you’re billing for freelance work, a construction project, consulting services, or a product order, there’s a template built for your workflow.
Additional Invoicing Guides
Looking for something more specific? The guides below cover every major invoice type, industry, and format in detail.
By Invoice Type (10)
- How to Create a Pro Forma Invoice
- How to Create a Recurring Invoice
- How to Create a Progress Invoice for Large Projects
- How to Create a Credit Memo / Credit Invoice
- How to Create a Debit Note
- How to Create a Commercial Invoice for International Sales
- How to Create a Retainer Invoice
- How to Create a Timesheet Invoice
- How to Create a Consolidated Invoice
- How to Create a Past-Due / Collection Invoice
By Service / Industry (12)
- How to Invoice as a Freelancer
- How to Invoice as a Contractor or Tradesperson
- How to Invoice as a Consultant
- How to Invoice for Creative Services (Design, Photography, Writing)
- How to Invoice for Legal or Professional Services
- How to Invoice for Landscaping or Lawn Care
- How to Invoice for Cleaning Services
- How to Invoice for Construction Projects
- How to Invoice for IT or Tech Services
- How to Invoice for Coaching or Tutoring
- How to Invoice for E-Commerce or Product Sales
- How to Invoice Internationally
By Format / Method (9)
- How to Create an Invoice in Word
- How to Create an Invoice in Excel
- How to Create an Invoice in Google Sheets
- How to Create an Invoice in Google Docs
- How to Create an Invoice on Your Phone
- How to Create an Invoice as a Sole Proprietor / Self-Employed
- How to Create an Invoice Without a Business Name
- How to Create an Invoice with a Payment Link
- How to Set Up Automatic Invoice Reminders
Reference Guides
- Payment Terms Explained: Net 30, Net 14, Due on Receipt & More
- How to Write a Late Payment Reminder Email
- Invoice vs. Receipt: What’s the Difference?
- Invoice vs. Bill: What’s the Difference?
- Invoice vs. Purchase Order: What’s the Difference?
- What Is a Statement of Account?
- Sales Tax on Invoices: A State-by-State Guide
- How Long to Keep Invoices for Tax Purposes
- Invoice Factoring: How It Works and When to Use It
- How to Write Off Unpaid Invoices
Sources
| # | Source | Publication | Year |
|---|---|---|---|
| 1 | 2025 US Small Business Late Payments Report | Intuit QuickBooks | 2025 |
| 2 | State of B2B Payments Report | Allianz Trade / Upflow | 2024 |
| 3 | Late Payment Cost Research | Gateway Commercial Finance | 2025 |
| 4 | Invoice Error & Late Payment Report | Amalto | 2025 |
| 5 | Freelancer Payment Statistics | Remote | 2025 |
| 6 | Small Business Cash Flow & Failure Research | U.S. Chamber of Commerce | — |
| 7 | Credit Management News Digest | Medium / Phaniac Capital | Oct. 2025 |
| 8 | Invoice Email & Payment Behavior Research | Billdu | 2025 |
| 9 | Late Invoice Statistics | Clockify / Invopilot | 2025 |
| 10 | B2B Payment Delays Research | The Kaplan Group | 2025 |
| 11 | How to Create an Invoice | Stripe Resources | 2025 |
| 12 | How to Write an Invoice | Salesforce Blog | 2025 |
| 13 | Invoice Requirements Best Practices | Square / The Bottom Line | 2025 |
| 14 | 13 Types of Invoices | FreshBooks Hub | 2025 |
| 15 | How to Create an Invoice | 1-800Accountant | 2025 |
| 16 | How to Write an Invoice | Adobe Express | 2025 |
| 17 | Invoice Management Best Practices | Invensis | 2025 |
| 18 | Invoicing Guide for Small Businesses | Tofu.com | 2025 |
| 19 | Pro Forma Invoice vs. Commercial Invoice | Adobe Acrobat Sign | 2025 |
| 20 | Late Invoice Payments and Small Business Sustainability | Journal of Accounting and Finance | Sep. 2025 |
© 2025 Invoice Maker. All rights reserved. This guide is for informational purposes only and does not constitute legal or financial advice. Consult a licensed professional for guidance specific to your situation.