Unless his deception becomes a “scandal in the community,” I doubt anything will happen in spite of the “Society’s” words on the matter. Actions speak louder than words.
*** w94 11/15 27-8 "If You Owe Taxes, Pay Taxes" ***
When it comes to paying taxes, each Christian must shoulder the responsibility of being honest and law-abiding. This is not a matter in which the congregation elders supervise the flock under their care. (Compare 2 Corinthians 1:24.) They do not involve themselves in tax matters unless some case of serious wrongdoing, perhaps involving scandal in the community, comes to their attention.
*** w83 4/1 8-10 The Uses and Abuses of Welfare ***
By the same token, it is proper to accept any of these benefits to which we are legally entitled because of present circumstances.
The lure of available state financial assistance can lead to other problems. Not long ago a man immigrated to a country with such benefits and applied for unemployment assistance. In his application he concealed the fact that he owned property in his home country—a fact that would have made him ineligible for benefits. Hence, he got money from the state by concealing the truth.
Deception may be practiced in many ways.
…typical abuses of the welfare system. By concealing facts, telling outright lies or in some other way violating Christian principles, it is sometimes possible to deceive the authorities and get extra money. But the Bible warns: “The devious person is a detestable thing to Jehovah, but His intimacy is with the upright ones.” It also states: “The getting of treasures by a false tongue is an exhalation driven away, in the case of those seeking death.” (Proverbs 3:32; 21:6) No Christian would want to be detestable in Jehovah’s eyes, just for financial gain.