Businesses doing cash deals are costing the community up to $50 billion in unpaid taxes, the Australian Taxation Office has revealed.

Job seekers will be required to search for a minimum of 15 jobs a month from early April, increasing to 20 jobs per month from July 1;

Unemployed workers will be given an extra $50 a fortnight once coronavirus supplements are scrapped, but bosses will be able to dob in anyone who turns down a job.

Economists have warned the Australian economy could hit a bump if there is no continuing federal government support when stimulus measures come to an end in March.

New figures show Australia looks set for solid economic growth in coming months, with unemployment falling further as jobs vacancies surged to an 18-month high.