A man has died after being struck by a tree on the NSW Central Coast as wild weather continues to bring dangerous conditions across the state.

The 76-year-old man was hit by the falling tree at a home on Glenworth Valley Road on the Central Coast, and was unable to be revived by emergency workers who were called to the scene about 1:30pm.

The tragedy occurred as severe thunderstorms swept through Sydney and its surrounds, hitting Richmond, Camden, Campbelltown and Penrith in the early afternoon, as well as the Hunter, with warnings stretching as far as Tamworth, Bourke, Scone, Walgett and Coonabarabran.

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At about 1pm, emergency crews also responded to a large gumtree falling onto a house on Kurrajong Road at North St Marys, where a woman and her baby were inside.

There were no injuries, and they were taken to Nepean Hospital for mandatory testing.

"She was just very shaken up, she was just thankful that we were there to put her in the car," a witness told 9News.

A 35-year-old man had to be cut free after being trapped under a branch while camping in Orange. 

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The SES has so far received more than 620 calls for help, more than 200 of which have come from Blacktown. 

The Bureau of Meteorology has said the severe thunderstorms in Sydney have temporarily eased, but that they could redevelop later today.

The BoM has warned that severe thunderstorms were likely to produce damaging winds and large hailstones in the state's north, between Taree, Kempsey and Mungindi, over the next several hours.

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Light rail services between Carlingford and Rosehill are not running due to fallen overhead wires near Carlingford. 

Passengers are being advised to make alternative travel arrangements.

Trains are not running between Parramatta and Richmond, or between Parramatta and St Mary's on the T1 North Shore and Western Line, T5 Cumberland Line and Blue Mountains Line, due to severe weather conditions causing power supply issues.

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Replacement buses have begun running between Blacktown and Richmond.

The NSW State Emergency Service (SES) has advised people impacted by storms to stay indoors and move cars under cover and away from trees.

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A sinister tax loophole which has left thousands of vulnerable Australians with secret debts could soon be closed by the federal government.

Perpetrators are taking advantage of the tax system with a little-known form of economic abuse known as "coerced directorships" – and it can cost people millions of dollars in fines.

Coerced directorships are a complicated type of financial abuse and typically involve abusive partners forcing or convincing victim-survivors to become a co-director or sole director of a business that they control.

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Assistant Treasurer Daniel Mulino today said the government aimed to crack down on the "dodgy use of directorships by perpetrators".

"Too many people have been left with liabilities they never agreed to and penalties for decisions they never made," Mulino said.

"Our goal is to build a system that protects people from exploitation and ensures perpetrators cannot hide behind corporate structure."

A newly released consultation paper has delivered some options for how legislation may stop financial abusers exploiting Australia's tax system.

This includes strengthening the Australian Securities and Investments Commission's (ASIC) powers to remove non-consenting company directors and making it easier for victims to engage with the Australian Tax Office (ATO).

The report also suggests stronger criminal consequences for fraudulent or coerced director appointments.

Submissions to the consultation will close on December 24.

Is economic abuse a crime in Australia?

In Australia, economic abuse or financial abuse can be considered a crime it if involves fraud, theft or coercive control.

Every Australian state and territory also recognises that economic abuse is a type of domestic violence.

And every state and territory has a form of a domestic violence order which is designed to protect victims.

According to the Centre for Women's Economic Safety, these orders aren't often used to protect money or assets but you may be able to request this if necessary.

Currently, there is no legislation that specifically outlaws "coerced directorships".

Support is available from the National Sexual Assault, Domestic and Family Violence Counselling Service at 1800RESPECT (1800 737 732).

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