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Professional business document tool

Free Invoice Generator

Create professional invoices online and download them as PDF. Add your logo, products or services, tax, discounts and payment details — no signup and no watermark.

Created in your browser No account or watermark PDF and editable project download
Invoice detailsNumber, dates, status and document references

Custom invoice fields

Add identifiers such as ABN, EIN, project, job number or cost centre.

FromYour business, contact and tax identifiers

Business identifiers and custom fields

Add identifiers such as ABN, EIN, project, job number or cost centre.

Business logo

Bill toCustomer or client details

Business identifiers and custom fields

Add identifiers such as ABN, EIN, project, job number or cost centre.

Ship toOptional separate shipping address
Items & services1 line item

Item 1

Amount: €100.00

Currency, tax & totalsInternational formatting, discounts and charges
Subtotal
€100.00
Total
€100.00
Balance due
€100.00
Payment detailsOptional instructions, bank details or payment links
Notes & termsOptional messages and conditions
Template & designSix layouts with controlled customization
Invoice actionsReuse, clear or create from this invoice

Check your local invoice requirements. Invoice requirements vary by country, region, business type and tax status. You are responsible for the accuracy, completeness and legal compliance of invoices you create. CalcsBay provides the creation tool and does not provide tax, accounting or legal advice. This notice is never included in the invoice, PDF or print output.

For comfortable document editing, use a tablet or desktop. On mobile, switch between the focused Edit and Preview views.

Professional documents without friction

Free Online Invoice Generator

CalcsBay combines a structured invoice editor, live document preview, accurate financial totals, six reusable styles and local file workflows. Your active invoice is created in the browser, and the generated PDF contains only the information and design you intentionally configure.

1. Enter the details

Add your business and client, products or services, prices, applicable taxes and payment information.

2. Review the invoice

Choose a design, verify totals and review each page in the live A4 or US Letter preview.

3. Save or download

Download the final PDF and keep a .calcsbayinvoice project file when you want to edit it later.

How to Create an Invoice

  1. 1Add your business details and optional logo.
  2. 2Add the client and optional shipping details.
  3. 3Enter products or services, quantities, units and rates.
  4. 4Configure tax, discounts, shipping and other charges.
  5. 5Add payment information, notes and terms.
  6. 6Choose one of six invoice designs.
  7. 7Review every page and verify the totals.
  8. 8Download PDF and save the editable project.

What Information Should an Invoice Include?

Common invoice information includes seller and customer details, a unique invoice number, issue and due dates, a description of goods or services, quantities, prices, applicable taxes, totals and payment information. Exact legal requirements vary by jurisdiction, business type and tax status, so verify the rules that apply to you.

Invoice Number

Invoice numbers help businesses identify and organize documents. Common approaches include chronological values such as 2026-001 or prefixes such as INV-0001. The local suggestion button increments the final numeric part, but it is not an authoritative accounting sequence and you remain responsible for your numbering process.

Invoice Due Date and Payment Terms

Payment terms describe when payment is expected. Due on receipt uses the issue date, while Net 7, Net 14, Net 30 and similar terms add that number of calendar days. The calculated due date remains editable when a contract or local rule requires another date.

VAT, GST and Sales Tax

Tax systems and terminology differ. The editor lets you choose a neutral custom label, use different rates per line and distinguish tax-inclusive prices from tax-exclusive prices. Confirm whether tax applies and which presentation your jurisdiction requires.

Invoice vs Receipt

An invoice requests payment and normally describes what is owed and when it is due. A receipt records that payment was received. Selecting Paid on an invoice can communicate a user-controlled status, but the generator does not verify or process a payment.

Invoice vs Quote

A quote or estimate proposes expected prices before work or supply is confirmed. An invoice requests payment for agreed goods or services. Their content can overlap, but the business purpose and legal treatment may differ.

Why Use a PDF Invoice?

PDF preserves page size, typography, tables and logo placement across devices. CalcsBay creates a clean file without website controls, ads or a watermark and embeds a Unicode font for international names, addresses and common currency symbols.

How to Edit an Invoice Later

Choose Save Editable Invoice to download a versioned .calcsbayinvoice file. When you return, choose Open Saved Invoice, select that file and continue editing the restored seller, client, items, taxes, logo, payment details and design.

Invoice Generator FAQ

Is the CalcsBay Invoice Generator free?

Yes. You can create, preview, print, save and download invoices without payment, registration or usage fees.

Do I need an account?

No. The invoice editor works in your browser and does not require an account or email registration.

Is there a watermark?

No. The invoice preview, printed invoice and downloaded PDF do not contain a CalcsBay watermark.

Can I add my business logo?

Yes. Upload a PNG, JPG, JPEG or WEBP logo. The image is resized locally and can be replaced, removed or displayed at a controlled width.

Can I choose a different invoice design?

Yes. Choose Professional, Modern, Minimal, Classic, Bold or Compact and customize the accent colour, font, font size, logo size and page format without losing invoice data.

Can I create invoices with VAT or tax?

Yes. Enable tax, choose a custom label such as VAT, GST or Sales Tax, set line-level rates and choose tax-inclusive or tax-exclusive pricing.

Can I use different currencies?

Yes. The generator includes common international currencies and supports symbol position plus three number-format styles.

Can I add discounts?

Yes. Add percentage or fixed discounts to individual lines and add an invoice-level percentage or fixed discount.

Can I add shipping?

Yes. Shipping and another custom-labelled charge can be added to totals. Unused charges do not appear on the invoice.

Can I add payment details?

Yes. Add free-form instructions, bank transfer fields, PayPal information or a payment URL. The tool does not process payments.

Can I create a multi-page invoice?

Yes. Long invoices continue across pages in the live preview and PDF, with table headings repeated and totals placed at the end.

Can I save my invoice and edit it later?

Yes. Download a versioned .calcsbayinvoice project file and open it later to restore the complete editable invoice, including its logo and design.

Where is my invoice saved?

The active draft is autosaved in local browser storage on the current device. Downloading an editable invoice file creates a separate backup you control.

Can I duplicate an invoice?

Yes. Duplicate the complete invoice and assign the suggested next number, or create a new invoice that keeps your business profile and design while resetting client and line data.

What information is legally required on an invoice?

Requirements vary by jurisdiction, business type and tax status. Common information includes seller and customer details, an invoice number, dates, line items, prices, applicable taxes, totals and payment information. Check the rules that apply to you.

Does CalcsBay guarantee that my invoice meets local legal requirements?

No. CalcsBay provides a professional invoice creation tool, not tax, accounting or legal advice. You are responsible for checking applicable requirements and the accuracy and completeness of your invoice.