If my husband just started being a subcontractor can we just pay our taxes at the end of the year when we file our income tax and let them take the taxes from that?

Based on your question, it sounds like your husband won't be an employee, and won't receive a Form W-2 for his income.

If this is the case, you can pay your taxes when you file your income tax return, but it's a really bad idea.  You'll most likely have to pay additional penalties that you wouldn't face if you paid throughout the year.

Please see the TurboTax Help article “Do I need to make estimated tax payments to the IRS?” for additional information.