In January, he pleaded guilty to four representative charges covering 12 years of offending and $1,757,147 of unpaid taxes.
Heart of the City - a city-centre business association registered by Swney in 1994 - has income-tax exemption on the basis that it was created to develop or increase amenities for the Auckland public.
But technically the defendant was a contractor of the organisation as the sole director of AGS Services Limited and the services he provided were taxable.
A summary of facts filed by the IRD showed how Swney issued "various fictitious invoices" to Heart of the City, from which he benefited.
Investigators questioned several organisations - including the New Zealand Herald - over the authenticity of the invoices and determined they were created "without authorisation".
Swney is also on the end of a civil action launched by Heart of the City, whose board announced the move in December after forensic accountants scoured their finances.