Tax season officially started this week, and the IRS maintains it is expecting to issue refunds within 21 days of when it receives and accepts a return – the same as always.

But the potential for another government shutdown in three weeks, combined with the complexities of the new tax law, is making many taxpayers more anxious than ever about getting their taxes done properly and promptly.

“When people are concerned and nervous, things can slip through the cracks,” says Howard Hook.

Consider these tips – published on ConsumerReports.org – to save your preparer time and potentially save yourself money.