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Accountants Trust

Lockbin to Transmit Files Securely

Encrypting Data for Tax Professionals for 20+ Years.

We Proudly Support:
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Incredibly Secure Emails

Lockbin secures messages in transit with the strongest Transport Layer Security (TLS), while FIPS 140-2 verified AES-256 bit encryption protects messages at rest.

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CPA and Accountants

Simple web forms allow your clients to securely submit sensitive documents. Add the form to your website, and allow users an easy way to submit information directly to you secure portal.

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No Software Download

Lockbin is browser based and works within your Chrome, Firefox, Safari, or Edge browser. There is nothing to download, or install, and the software can be used on Mac, Windows, or any operating system.

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Keeping Tax Professionals Secure for 20+ Years.

Join Lockbin 100% Risk Free
Privately Send Messages and Share Files

For assistance ordering, email support@lockbin.com

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$ 0/month
Free

1 user, basic secure messaging


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$ 10/month
Premium

1 user with all features


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$ 10/user/month
Multi-User Enterprise

Manage multiple users from one master account

Free Account
$0 / month — 1 user
  • Free to Use
  • 1 User
  • Receive encrypted messages from anyone
  • Password encrypted messages
  • Password-free secure messages
  • Communicate with other Lockbin users without a password
  • AES-256 bit encryption
  • Forced TLS connections
  • Include one file attachment up to 25MB
  • Notifications by Email
  • Message Auto Delete
  • Store inbox messages up to 6 months
  • Free Email Support
Premium Account
$10 / month — 1 user, all features
  • Everything in Free, plus:
  • Your own hosted file-drop link on Lockbin.com — share with anyone, no account needed for them to send you files
  • Secure Web Forms for your Website
  • Information Requests — collect data and files securely from anyone
  • Undo Send — recall a message before the recipient opens it
  • Sent Messages archive — searchable history with PDF and image export
  • Personal Address Book — auto-builds from your sent and received messages
  • Multiple recipients per message
  • Up to 20 file attachments per message (up to 100 MB per upload)
  • Delivery Receipts
  • View recipient IP address
  • Notifications by Text SMS
  • Custom Landing Page (welcome text, logo, image)
  • Custom Notification Messages
  • Hide Lockbin branding on web forms
  • Custom message retention rules — auto-delete read or unread messages on your schedule
  • FIPS validated encryption library
  • No pre-set storage limits
  • Signed Business Associate Agreement (by request)
  • Free Email and Phone Support
Enterprise Account
$10 / user / month
  • Everything in Premium, plus:
  • Unlimited Users
  • Manage multiple Lockbin user accounts
  • Single payment method for multiple users
  • Add or subtract user accounts
  • Bulk user import — upload a .txt file to assign multiple sub-users at once
  • Re-assign Lockbin user accounts
  • Admin Copy — receive a copy of every message your sub-users send or receive (compliance & audit)
  • Master account’s branding applied to all user emails
  • Group-shared Address Book across all users
  • Send multiple files up to 1 GB per upload
  • Web Forms, custom branding, and user management are configured by the master account; sub-users send messages and use shared resources.