Stop Printing, Folding, and Stamping Invoices by Hand
Mailform connects directly to your accounting software and mails your invoices via USPS — without a printer, stamps, or a trip to the post office. Import invoices from QuickBooks, FreshBooks, Xero, Harvest, FreeAgent, Clio, or Zoho Books, and Mailform handles the rest: printing, folding, stuffing, and mailing.
Pricing starts at $2.99 for the first page, plus $0.49 for each additional page. That includes printing, a standard envelope, and USPS First Class Mail postage. Add a pre-addressed return envelope for $0.50 more — a simple way to make it easier for clients to pay you back.
Supported Integrations
Mailform imports invoices directly from:
- QuickBooks — connect your account, filter by unpaid invoices, and mail in bulk
- FreshBooks — pull outstanding invoices and send without leaving your browser
- Xero — import and mail invoices with address auto-filled from your contact records
- Harvest — mail time-based invoices to clients via USPS
- FreeAgent — send invoices physically to clients who prefer paper
- Clio — mail legal invoices to clients from your practice management software
- Zoho Books — send Zoho invoices via USPS First Class or Certified Mail
You can also upload invoices manually as PDFs if you use a different tool.
How It Works
- Connect your accounting software — Link QuickBooks, FreshBooks, Xero, or another supported integration in your Mailform account settings.
- Import your invoices — Mailform pulls in your unpaid or unsent invoices automatically. Filter by date range, status, or client.
- Choose your options — Select First Class or Certified Mail, color or black-and-white printing, single or double-sided, and whether to include a return envelope.
- Confirm and send — Review the recipients and hit Send. Mailform prints, folds, stuffs, and drops your invoices at USPS on your behalf.
Bulk Invoice Mailing for Multiple Clients
If you send invoices to dozens or hundreds of clients each month, Mailform's bulk mail tool lets you mail them all in a single batch. Upload a CSV with recipient addresses, attach one PDF or individual PDFs per recipient, and send everything at once. Volume discounts apply for large batches.
W-2 and 1099 Mailing
Mailform now supports W-2 and 1099 mailing — upload your tax documents and mail them to employees or contractors via USPS without printing anything yourself. This feature is especially useful at year-end when you need to get forms out quickly and accurately.
Why Mail Invoices Instead of Emailing Them?
Some clients simply don't pay attention to email. A physical invoice in the mail is harder to ignore, signals professionalism, and is often required by certain industries or government agencies. Law firms, contractors, healthcare providers, and service businesses frequently use Mailform to reach clients who pay by check or require paper documentation.
How Mailform Compares
Services like Melio and Bill.com focus on digital payments and ACH transfers. Lob is built for developer teams with API-first direct mail at enterprise scale. Mailform is different: it's built for individual freelancers and small businesses who need to occasionally or regularly mail a physical invoice via USPS, without a developer, without a monthly contract, and without a minimum order.
- No monthly fees
- No minimum order
- No printer or stamps required
- Direct integrations with the accounting tools you already use
- USPS Certified Mail option for invoices that need proof of delivery
Frequently Asked Questions
How much does it cost to mail an invoice?
Mailform charges $2.99 for the first page plus $0.49 per additional page. Add $0.50 for a return envelope. There are no setup fees or monthly charges.
Can I mail invoices to multiple clients at once?
Yes. Use the bulk mail tool to upload a list of recipients and mail all your invoices in one batch. Volume discounts apply.
What mail class is used?
Mailform defaults to USPS First Class Mail. You can upgrade to USPS Certified Mail for a tracking number and proof of delivery.
Do I need to print anything?
No. Mailform handles all printing on its end. You only need to upload or import your invoice and confirm the mailing.
Can I include a return envelope?
Yes — add a pre-addressed return envelope for $0.50 extra. This makes it easier for clients to mail back a check.
Questions? Contact us at support@mailform.io or call 1-805-395-9596.
