Short answer: when you add a vehicle to your BONNET account, you are charged a pro-rata amount for the remaining days in your current billing cycle. This is not a new full charge - it is just topping up to cover the vehicle from today through to your next billing date.
How pro-rata billing works
BONNET billing is dynamic - meaning your costs automatically adjust as you add or remove vehicles. There are no lock-in contracts, so you are always only paying for what you actually have on your account.
When you add a vehicle:
BONNET instantly generates a pro-rata invoice covering the period from the day you added the vehicle to your next billing date. If your billing date is 21 days away, you will be charged for 21 days - not a full month or year.
When you remove a vehicle:
Your next invoice will simply not include that vehicle. On annual plans, any unused time may be credited to your account.
Monthly vs annual plans
Monthly plan: Pro-rata invoices are small - often just a few days worth of cover. If you add a vehicle 10 days before your billing date, you will only be charged for those 10 days.
Annual plan: Pro-rata invoices cover the remaining time until your annual renewal date, which can be several months. This is why the amount can look larger than expected - it is not a duplicate charge, it is locking in the new vehicle for the rest of your annual period.
Why does my invoice look confusing?
Invoices for pro-rata adjustments show two line items:
- Remaining time on X vehicles - the new charge for your updated vehicle count
- Unused time on X vehicles - a credit for the old vehicle count
The difference between these two amounts is what you actually pay. It can look complicated on paper, but it is just the maths of adjusting your subscription mid-cycle.
Where to find your invoices
All your invoices (including GST receipts) are available at:
fleet.bonnet.co.nz/subscription
Log in and head to the Subscription page to see your full billing history.
Questions about a charge?
If something does not look right, get in touch with the billing team:
Include your account email and the invoice number and we will sort it out.
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