The papers said officials were aware of some policy ideas whereby the obligation of businesses to pay GST was removed.
But the idea was shot down.
"Removing an obligation to pay GST will provide more benefit to unaffected taxpayers and no benefit to exporters or taxpayers getting refunds," the paper said.
"Inland Revenue and the Treasury strongly recommend that these sorts of measures are not implemented."
Officials said the idea was likely to create "significant administrative issues" and would be too complex to deliver within tight timeframes.
They also said it would be difficult to police compliance.
The report was prepared on March 5, when New Zealand had only three cases of Covid-19.
But even back then, Cabinet was considering a "range" of tax options that were able to be deployed, "given the likelihood that the economic downturn caused by the Covid-19 outbreak may be longer and deeper than initially anticipated".
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