Bookkeeping Q&A

A bookkeeper needs to be a BAS agent to provide BAS services. You can easily check if they are registered, as Kristy mentioned. This is only if you are outsourcing your bookkeeping to a third party. If you are preparing and lodging BAS statements yourself, you don’t need to be a BAS agent.
 
In short, you can use an accountant or a bookkeeper who is a BAS agent. Accountants may not do it themselves. They and accounting firms typically have bookkeepers who will work on the BAS statements and lodge it for them. The cost should be around a few hundred dollars for a small business.

I don’t live in Adelaide but I usually use the service provider and location keyword, for example, “bookkeeper Adelaide” or “accountant Adelaide”. I may also use task or project specific keywords such as “tax return Adelaide” or “BAS preparation Adelaide”.
 
You can do a keyword research, if you haven’t already. There are many SEO tools that can give you popular keywords people search for. It can also help you discover related keywords and questions people generally ask that you may not have thought of. These keywords are great not just for SEO but to use in your content and ads too.
 
I find the best SEO tools are usually paid ones such as SEMRush, Moz and Ahrefs because they will give you rich and detailed data and other features if you are serious about improving your SEO. Otherwise, you can try free ones such as Google Keyword Planner, Google Trend and Keyword Tool for basic research. They should be good enough. All the best.

Here are a few links you might find helpful.

SEMRush: https://www.semrush.com/
Moz: https://moz.com/
Ahref: https://ahrefs.com/
GKP: https://ads.google.com/intl/en_au/home/tools/keyword-planner/
Google Trends: https://trends.google.com/trends/
Keyword tools: https://keywordtool.io/