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Per month billed annually

Pay Month-to-month


Billed month to month

Free Plan (free forever)


Individual Constituent Letters
Individual Gift Letters
Bulk Letters
eSignatures via DocuSign
500 Letters / month
5 Templates

Premium Plan


Individual Constituent Letters
Individual Gift Letters
Bulk Letters
DocuSign Integration
Built-in Email Delivery
Giving Summary Template
Conditional Templates
Giving Summary Templates
Receipt Number Generator
2,000 Letters / month
Unlimited Templates

Customer Story

We were able to use Letter Box in the live environment yesterday to send 19 eReceipts and 9 printed receipts. We will also use this to generate RG welcome letter. [Our team] …is enjoying the ease of generating and re-generating the receipts… 
We are very grateful to all of you for fast-tracking the release as we have no doubt there would have been a lot of work rendered behind the scene. We will be recommending Letter Box to everyone we come across. 
Uttam Tajhya
Head of Data and Donor Services
Catherine Hamlin Fistula Foundation

Letter Box