Proposed changes to superannuation law are already severely affecting the Indigenous art market, an accountant says.

The Cooper review into superannuation was handed down late last month.

In it were recommendations to stop self-managed superannuation funds from investing in art.

Accountant Tom Lowenstein is leading a campaign against the proposed changes.

He says self-managed superannuation funds make up about 15 per cent of the Indigenous art market.

Mr Lowenstein says the Cooper Review has created uncertainty in the market and he wants the Government to immediately dismiss the recommendations.

“It is quite obvious that sales have already been significantly reduced over the last two months,” he said.