Should I increase my allowances on w4?
Consequently, is it better to claim 1 or 0?
If you put "0" then more will be withheld from your pay for taxes than if you put "1"--so that is correct. The more "allowances" you claim on your W-4 the more you get in your take-home pay. Just do not have so little withheld that you owe at tax time.
In this manner, should I increase my withholdings?
The key to paying the right amount of tax is to update your W-4 regularly. Do this whenever you have a major personal life change. But if you count on a big tax refund every year, you should also pay attention to your withholding, because how much you have withheld directly impacts your refund.
You can claim anywhere between 0 and 3 allowances on the 2019 W4 IRS form, depending on what you're eligible for. Generally, the more allowances you claim, the less tax will be withheld from each paycheck. The fewer allowances claimed, the larger withholding amount, which may result in a refund.