We welcome invoices for work done by all contributors to the project, we ask that you base your expenses on these guidelines:

Specify your full name and legal address on the uploaded invoice (don't worry - uploaded invoice files are not publicly visible).
Invoice currency must be in GBP (£)
In the Description field please be clear on the work you've done (be aware this part is public)
Use the Private Instructions field for anything you need to let the expense reviewer know but you don't want it public.

Currently, the following limits apply to all expenses submitted, per person:

Invoice at a base level of £10 per hour
Some high priority issues or PRs are labelled with Award multipliers, so for example, if it's a 1.5.x multiplier then you can invoice for time spent working on resolving it at a rate of £15 p/h (base level x multiplier)
Invoice for no more than 15 hours per month
Anything over the limit can be rolled over into the following month

These limits are here to allow everyone to benefit from the collective funds and are adjusted based on the funding we currently receive - we'll scale these limits up as more backers join the collective.

Invoices can be generated using online tools such as https://invoice-generator.com