Get started with OSO Books today.

We have a plan to suit your business. Get exactly what you need, at the right price, with pro-rata upgrades available at any time as your business grows.


$ 0  / 14 Days

Give OSO Books a try free for 14 days, no credit card required. You will be issuing your first invoice within 10 minutes!

Limited features
10 email limit   
Your own private trial subdomain
Single user account

Get Started
best value


(USD)   $ 36  / Year

Suited to the small business owner that averages up to one invoice per day, monthly. The perfect starting point, with big features at a small price.

All product features
Custom invoice branding/logos
35 emails per month   
Your own private subdomain
Single user account

Get Started


(USD)   $ 65  / Year

Suited to established business. No limits on email notification, support for emails sent from your own domain, and 2 concurrent user accounts with the option to add more if required.

All product features
Custom invoice branding/logos
Custom SMTP Server Support
Unlimited emails per month
Your own private subdomain
2 user accounts included, upgrades available
Auditable user permissions

Get Started
Is my data safe and secure?

OSO Books employs industry standard data security measures to protect your information from unauthorized access, including encryption of data where required and secure (SSL) communications.

If the product does not meet my expectation, can i get a refund?

Absolutely. With a money back guarantee for up to 30 days from purchase you can feel secure. We stand by our products, and will work with you to address any concerns, just let us know.

I need help with my account. How do i get help?

We are here to help. We have created a comprehensive support guide that will answer the most common questions. If you still have issues, create a support ticket containing as much detail as possible and we will get right ont it!

What happens if i cant renew my subscription? Will i lose my data?

Your data is safe and will always be preserved, no matter how long your subscription has lapsed. It will remain available, and can be accessed again at any time after renewing your subscription.

Have Questions? We are here to help.

Send us a message with your enquiry, and we will get back to you as soon as possible with the answers you need!