內容簡介
Easy Invoice 將您的 WordPress 網站轉變為發票系統，能夠創建無限的發票和報價，並以 PDF 格式發送，還能在發票頁面上接受付款，讓每位客戶的歷史紀錄集中管理，適合自由工作者、小型企業及開發者使用。
【主要功能】
• 無限發票與報價，自動編號
• 支援 PDF 生成與列印，含商業標誌
• PayPal 付款按鈕與多種付款方式
• 客戶記錄與完整歷史紀錄
• 一鍵將報價轉換為發票
外掛標籤
開發者團隊
② 後台搜尋「Easy Invoice – Invoice Generator, PDF Quotes & Payments」→ 直接安裝（推薦）
📦 歷史版本下載
原文外掛簡介
Easy Invoice turns your WordPress site into your invoicing system. Create invoices and quotes, send them as PDFs, take payment on the invoice page and keep every client’s history in one place — with no per-document limits, no watermarks and no trial period.
It is built for freelancers, consultants, agencies and small businesses that would rather not pay a monthly fee for a separate invoicing service, and for developers who want invoicing that follows WordPress conventions: custom post types, capabilities, hooks, a REST API and coding standards.
Live demo · Documentation · Product page & Pro pricing · Support forum
What the free plugin does
Invoices and quotes
Unlimited invoices and quotes, with automatic numbering and your own prefix — numbers stay unique even when two people save at the same moment
Line items with quantities, per-line or global tax, and discounts calculated before or after tax
Convert an accepted quote into an invoice in one click; clone any document
Credit notes against issued invoices; client statements with running balances
Notes, terms, due dates and payment instructions per document; default terms in Settings
PDF and print
PDFs are rendered on the server (real, selectable text) with your logo and business details
Nine document designs: default, modern, classic, minimal, corporate, professional, elegant, creative and legacy
Rename any label (“Grand Total”, “Net”, your language) without touching code
Download from the admin, from the public invoice page, or through the REST API
Getting paid
PayPal checkout with a Pay Now button on every invoice
Bank transfer, cheque and cash recorded against the invoice — clients can upload proof of a transfer or cheque for you to approve
Payment history with partial, paid and overdue states
A custom Pay Now link for any other provider
Clients
Unlimited client records with billing details and a complete per-client history
Invoice and quote emails with the PDF attached, from templates you edit
Every emailed link carries a private access key: a document is shown to you, to the signed-in client it belongs to, or to someone with the emailed link — never to whoever guesses a URL
Import from Sliced Invoices or Sprout Invoices in one click, or from CSV files with downloadable templates
Localisation
121 currencies, with symbol, position, decimals and separators set per document
Dates in the site’s timezone; translation-ready (text domain easy-invoice)
Multisite compatible
For developers
REST API for invoices, quotes, clients and PDFs — API reference
Migration from Sliced Invoices and Sprout Invoices built in
Actions and filters at every step; documents are custom post types you can query
WordPress coding standards, escaped output, prepared SQL, nonce-protected actions
Tested with 10,000 invoices and 10,000 quotes on one site: every admin screen stays under a second
Easy Invoice Pro: 26 addons, switch on what you need
Easy Invoice Pro is a separate plugin that adds addons on top of the free one. Each addon has its own on/off switch under Easy Invoice → Addons; an addon you leave off loads no code and runs no queries. Pro requires Easy Invoice 2.4.0 or newer.
Personal — 16 addons, on as soon as Pro is installed (no licence key needed to use them)
Recurring Invoices & Subscriptions — generate and email invoices on any schedule; optional auto-charge through Stripe or PayPal
Partial Payments & Deposits — require a deposit, let clients pay the balance in instalments
Client Portal — clients log in to view invoices, download PDFs, see payments and accept or decline quotes
PDF Toolkit — watermarks (PAID, DRAFT, OVERDUE, VOID or your own), custom headers, footers, colours and fonts
Custom Invoice & Quote Templates — a visual builder for your own layouts
Item Library — saved products and services with price and SKU, inserted in one click
Bulk Email & Export — email batches of invoices; export selected rows or everything to CSV, Excel or PDF
Additional Tax Lines — unlimited named taxes per invoice (VAT + duty, GST + PST, federal + state)
Email Enhancements — your own HTML email layout; replies routed by kind
Secure Links — signed, expiring document URLs
Payment Links & QR Codes — a link or QR code for a fixed or open amount, usable anywhere
Quote E-Signatures — clients sign when they accept a quote; signature, name, time and connection recorded
Quote Request Forms — WPForms, Gravity Forms, Contact Form 7 or Fluent Forms submissions become draft quotes
WooCommerce Invoicing — an invoice for every paid order; refunds become credit notes
Reports & Analytics — revenue, outstanding balances, per-client performance, month-by-month profit and loss
Privacy & GDPR — client documents included in WordPress personal-data export and erasure requests
Pro payment gateways (alongside the free PayPal, bank transfer, cheque and cash): Stripe (cards, Apple Pay, Google Pay, Link, 3-D Secure), Square, Authorize.Net, Mollie (SEPA, iDEAL, Bancontact, Klarna), Paystack (cards, bank transfer, USSD, mobile money) and Moneris.
Professional — 6 more addons, with a Professional licence
Time Tracking & Project Billing — start/stop timer, per-project and per-client entries, one click to invoice lines
Expense Tracking — billable expenses with receipts and markup, rolled into invoices
Smart Reminders & Late Fees — a multi-step reminder cadence, automatic late fees and early-payment discounts
E-Invoicing — Factur-X / ZUGFeRD (EN 16931) PDFs and Peppol UBL for public-sector and EU customers
Client Language — every document for a client, page, PDF and email, produced in the client’s language
Retainers & Prepaid Credit — record a block of hours or a prepayment and draw it down invoice by invoice
Agency — 4 more addons, with an Agency licence
White-Label & Brand Override — your name, menu, icon, PDF footer and email signature; every upgrade prompt hidden
Team Members & Audit Log — Manager, Accountant, Sales and Viewer roles, and a searchable log of every action
Accounting Sync — QuickBooks Online, Xero and FreshBooks: invoices push out, payment status comes back
Webhooks & Zapier — invoice events to any URL, HMAC-signed with retries; drops into Zapier, Make or n8n
See plans and pricing — every Pro plan has a 14-day money-back guarantee. Upgrading keeps every invoice, quote, client and payment the free plugin created.
Who uses Easy Invoice
Freelancers — quote, invoice and collect payment from one screen
Agencies and studios — per-client history, statements, deposits and a client portal
Shops and B2B sellers — proper invoices for WooCommerce orders and everything the cart can’t bill
Consultants and service firms — billed hours, expenses, retainers and e-invoices for larger customers
Privacy
Easy Invoice stores everything in your own WordPress database and sends nothing to us. The plugin contacts outside services only when you use them: the payment gateway you configure (PayPal in the free plugin), and the WordPress.org update check that every plugin performs. Card details never touch your site — they are handled by the gateway. With the Pro Privacy & GDPR addon, a client’s invoices, quotes and payments are included in WordPress’s personal-data export and erasure requests.
Translations
Easy Invoice is translation-ready (text domain easy-invoice, .pot in /languages). Translate it with Loco Translate, Poedit or on translate.wordpress.org.
