Income tax threshold

[David B.]

Ky resident.

Question about income taxes that will be filed march 2019.

Specifically how much to make losing child tax credit vs 22% tax instead of 25% for the next few years. Including new standard deduct 24k vs 12k.

Try give as much detail as possible. 

Married with 2 small children. Wife is stay at home mom. Own primary resident. Still owe 150k.

Last year gross 144k. Learned that after 110k. Take $50 of 1000 get child tax credit for every 1k earn after 110k. 

I can tapper my salary to right at 110k this year.

Or i can i earn another 15 to 20k next 2 months.

Does it make more sense to benefit from the 3% savings right now.

But

Lose 5% for next 40k. Thats based if after lose one child tax credit you start the next one at 130k. Or even worse is it 10% lose on first 20k.

If i earn more money thats good but i hate to earn more cost more. Im trying to pay down my primary resident to invest into rentel property.

In my eyes any money earned after 110k would need to have to payback atleast 2% to break even. In theory all money earned after 110k. If it was put toward my 4.375  morgage interest. Is it correct to assume i would be to the good?

I all ready max out 401k. Get pretty close to max out both my wife and i roth ira. Usually make up difference file our taxes. Because fidelty allows us to contribute till april for prevous year.

I have ask around. Most people i work with just try earn as much as possible and then firgure it out. But most are in lots of debt and spend alot on liabilities.