Wayne Taylor/Fairfax Media Christian Porter:

CANBERRA -- Flushed with early success, but not satisfied with efforts to lift child immunisation rates, the Turnbull Government is moving to toughen the welfare 'no jab, no pay' policy by applying it to the fortnightly bank balance rather than a yearly sting. Under legislation to be introduced to parliament on Thursday, the present system which withholds a lump sum at the end of each year would be replaced from 1 July 2018 by a fortnightly $28 cut to Family Tax Benefit Part A payments for each unvaccinated child.

"Here you'd have a constant reminder that you're missing out on something" for not keeping #vaccination up to date - @cporterwa#auspol — Alex Beech (@AlexHBeech) September 13, 2017

There are 137,000 people seen as hold outs to child immunisation made up of two major hold out groups; too busy parents and conscientious objectors. Not all deliberate hold out, anti-vaccination parents are on welfare benefits, but Social Services Minister Christian Porter insists he can add to the success since 'no jab no pay' was introduced in January 2016. "There were many people who said that the theory of linking family tax benefits to vaccinations would not work and they have been proved spectacularly wrong," Porter told reporters in Canberra. "This is a very firm response, but a very fair response in line with community expectations."

People opposed to No Jab No Pay "proved spectacularly wrong" says Christian Porter on @BreakfastNews#StopAVN — Paul Gallagher (@advodiaboli) September 13, 2017

As of June, 93.79 percent of one-year-olds, 90.86 percent of two-year-olds and 93.55 percent of five-year-olds were fully immunised, but a critical 95 per cent immunisation level is being sought for the community protection of disease, known as 'herd immunity'. "The end-of-year supplement being potentially lost has caused those very significant increases," Porter said. "The behavioral economic theory behind the potential loss even more immediate to the failure to vaccinate your child will lift those percentages up even further."

.@cporterwa: Parents who don't vaccinate their children will lose part of their fortnightly welfare payments. MORE: https://t.co/0wlvqLtQMlpic.twitter.com/wiVcod7XtQ — Sky News Australia (@SkyNewsAust) September 13, 2017

Two hundred and ten thousand Australian families got children vaccinated under the first version of 'no jab no pay', but the Minister said a constant reminder is needed to change behaviour. "Yes, we are trying a different approach, you might argue a firmer and more stringent approach," he said. "But we are very confident that having the potential loss more immediate in time, so it will be felt on fortnightly cycle, is going to target those 137,000-odd families who so far have not changed their behaviour."

Why only part? $28 a fortnight... get real it's a packet of smokes — Concerned_Citizen_66 (@sandybaydreamin) September 13, 2017