The IRS has a publication to help figure out whether you need to pay quarterly or not: http://www.irs.gov/publications/p505/index.html
Whether you pay in quarterly doesn't determine whether you'll receive Social Security benefits. It's the amount of self-employment tax you pay that determines that.
If you don't want to pay quarterly taxes you'll need to adjust your spouse's withholding to account for your taxes, too. If the amount withheld at the highest rate is not enough, you can also have their employer withhold a set amount each paycheck to make up the difference.
If you overpay you will get that amount refunded at the end of the year when you file your tax return. It's no different than if your spouse withheld too much.
Whether you pay in quarterly doesn't determine whether you'll receive Social Security benefits. It's the amount of self-employment tax you pay that determines that.
If you don't want to pay quarterly taxes you'll need to adjust your spouse's withholding to account for your taxes, too. If the amount withheld at the highest rate is not enough, you can also have their employer withhold a set amount each paycheck to make up the difference.
If you overpay you will get that amount refunded at the end of the year when you file your tax return. It's no different than if your spouse withheld too much.
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