Who told you that?
The Trump Administration:
“Reducing the statutory federal corporate tax rate from 35 to 20 percent would, the analysis below suggests, increase average household income in the United States by, very conservatively, $4,000 annually.”
https://www.whitehouse.gov/sites/whitehouse.gov/files/documents/Tax Reform and Wages.pdf
And real wages have declined according to Payscale:
AFTER TAX CUTS, WAGES DECLINED IN 80 PERCENT OF INDUSTRIES
The latest data show that wages declined instead. The PayScale Index, which measures the change in wages for employed U.S. workers, updated last week and showed that wages declined 0.9 percent last quarter.
The earnings picture is worse when you take inflation into account. Real wages dropped 1.8 percent from Q1 to Q2 — the largest decline in seven years. Eighty percent of industries saw wages decline.
“The Q2 Index shows the benefits of recent changes to the tax policy are largely reaped by business owners, not employees. Many corporations are using the additional money to buy back stock rather than increase wages,” said Katie Bardaro, Vice President of Data Analytics and Chief Economist at PayScale, in a statement.
https://www.payscale.com/about/pres...-resulting-in-higher-wages-for-most-employees