Dog poo fines and electricity price hikes — if you are waking up in South Australia today there are some changes you should know about.

July 1 — the start of the financial year — is when legislative changes come into effect, and this year there are some big ones.

With hefty hikes to fines under the Dog and Cats Act, failing to pick up your dog's poo now could attract a $210 potential fine, up from $55.

If you have a "prescribed breed" (that is American Pit Bull Terrier, Fila Braziliero, Japanese Tosa, Dog Argentinia, or a Presa Canario) you could face a $5,000 fine, if it wanders into the grounds of your local school or childcare centre.

Council officers will have new powers, and will be able to seize "evidence" for an investigation, as well as force dog owners to give their name and address.

Guns changes

There's also a new code of practice for firearms, as the Firearms Bill comes into effect.

That will regulate how you can store and transport guns in South Australia.

And there are new mandatory reporting requirements if a person suspected of suffering from mental illness has access to a firearm.

That bank tax

The South Australia's Government's bank tax still needs to pass the parliament but there are questions on who will eventually foot the bill.

On top of that, South Australians are waking up to increased energy prices — which, according to some are now the most expensive in the world.

AGL, Energy Australia and Origin Energy will all increase their prices, by up to 19.9 per cent, which is expected to add hundreds of dollars to annual household bills.

Overall, it could be an expensive start to the new financial year.