I have just started working from home and want to know what I can claim through the business. We don’t owe any money on the house, does that matter and can I now claim travel expenses to visit clients?

Hi Marnie,
You can claim all reasonable expenses incurred in the earning of income for your business.
The most reliable place to understand what you can and can’t claim is either the ATO website or your accountant.
A mortgage on a house has never been claimable.
In most cases, the cost of travel from your office (including a home office) to a client is claimable.
Definitely get professional advice before making any claims
Regards
Scott