The Queen's consent for the measure - which will bring more contractors into the PAYE system - is imminent.
Progress depends on separate legislation abolishing the right of most hereditary peers to sit in the Lords.
The next move in the saga will be consultations between Customs and Excise and representatives of practitioners and service companies over draft guidance on how the new regime will work. That is understood to include the definition of self-employed - which is crucial to the moves to require payment of employer and employee national insurance contributions on almost all of assumed income.
Following limited government concessions, some service companies will qualify as 'self-employed' and only be liable to pay NICs on that basis. They will escape the fate of companies that have to pay both employee and employer NICs because their proprietors are deemed to be 'employees'.
Further ahead is the conclusion of consultations with the Inland Revenue over the tax treatment of these businesses, involving what proportion of fees will be regarded as income and how much owner directors can set aside and take as dividends.That will be dealt with through possible clauses in the next Finance Bill.
Geoengineering on the sea floor near glaciers would form a new ice shelf to prevent melting
Alterations in capillary blood flow can be caused by body position change
Curiosity rover is in 'normal mode' but not transmitting scientific data back to base
NatWest outage comes a day after Barclays' IT systems shut out customers and staff