E-books are one of the online products that are likely to get more expensive from October after a tax change.

The "Netflix tax" is hurtling towards October implementation after clearing another hurdle.

Parliament's Finance and Expenditure select committee has endorsed a law change that will force larger foreign firms such as Netflix, Apple and games-maker Valve to collect GST on digital products and services they sell to New Zealanders.

Deloitte tax partner Allan Bullot said the committee had recommended only minor technical amendments to the legislation.

He expected the law change would get royal assent in mid-April.

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"This is pretty quick for tax legislation. The Government is obviously very keen to bring this law in from October," he said.

"There is a lot of discussion about how things are taxed in the 'brave new world' and one of the things New Zealanders need to realise is that from October 1 there will be a difference in how New Zealanders are taxed on things they download."

PwC tax partner Eugen Trombitas expected Inland Revenue would release more information next month on how it would monitor and ensure compliance by foreign sellers.

Retail NZ spokesman Greg Harford said it was disappointed the select committee had not recommended expanding the bill to also encompass physical items that Kiwis bought from overseas online.

It had been hopeful of a change after making its case to the commission last month.

But the collection of GST on physical imports will instead remain subject to a separate Customs review.

The Netflix tax was good for the likes of Spark but would not do much for local shops which still faced a tax disadvantage competing against overseas online businesses, Harford said.