I manage a tax office, and while a flat tax would end my industry, I'm a big fan of it. Someone can come into my office, make $17000, pay no income tax in during the year, and leave with a check for over $10K. That is not a fair tax system. Granted they have 3 children, but I, nor any other taxpayer made them have those kids.
Earned income credit + the refundable additional child tax credit are the bane of my existence. My hubby and I both work, and have paid a small fortune in taxes this year, and will be fortunate to not owe. And yes we own a home, and itemize. But because we choose not to have children, we pay more in taxes.
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“All his life he tried to be a good person. Many times, however, he failed.
For after all, he was only human. He wasn't a dog.”
― Charles M. Schultz
Warning: The above post may be dripping in sarcasm and full of smartassedness.