Have you recently received your Gwinnett County property tax assessment in the mail? Do you feel that your tax bill might have been calculated incorrectly because it seems to be a bit too high – or a lot too high? If the tax assessor’s office is valuing your home incorrectly, you will want to take action as soon as possible. You will typically have 45 days from the time your assessment is sent to you to file your appeal, so you can’t delay. However, you will want to make sure that you have some help while you do, as it will be much easier on you.