• Every winter, people across the nation scramble to get their finances in order in preparation for filing their federal and state tax returns. When the tax man cometh, you can suddenly find yourself owing a lot of money. Regulations for state taxes vary across the country. Whatever your state, several general guidelines can help you think smart and save money when filing your state tax return.
  
  

Prepay Your Taxes

• If you prepay any of next year's state taxes before January 1, you can deduct the amount you prepaid on this year's tax form, reports "Forbes" magazine. The magazine says this can help you save money in the long run.
  
  

Whip Out the Plastic

• If you have a big enough credit card limit, and if you have the financial foundation to pay off your credit card bill right away, "Smart Money" magazine suggests considering paying for your taxes with plastic. Most states now allow this, reports the magazine. This can save you money if your credit card provides cash-back rewards greater than any convenience fees charged by your state. For example, if your state charges a 1 percent convenience fee and your credit card gives you 2 percent cash-back rewards, you'll earn 1 percent on your tax bill.
  
  

Review It After Filing

• In your rush to file your state tax return by the deadline, you may miss important deductions, tax credits and exemptions that could reduce your final tax bill or net you a bigger state tax refund. That's why "Kiplinger" financial magazine suggests going over your tax return again after you've filed it. There is nothing wrong with filing an amended tax return once you have had time to relax and go over all the details without the worry and stress of a looming deadline.
  
  

Get Help

• As much as you may want to save money by doing your tax return yourself, "Forbes" warns that the process can be tricky and complicated, especially if you have a complex business or personal financial situation. The magazine says that, in the end, you may save money and time by hiring a professional accountant or tax preparer. If you can't afford an accountant's high fees, you can get tax filing help through regional nonprofits and volunteer associations. Your municipal government can point you in the right direction.
  
  

Live Environmentally Friendly

• Many states offer major deductions if you transition your household to live more environmentally friendly, reports CNN Money. For example, installing a solar panel can net you big tax deductions. Not only do you get an immediate tax break, the long-term benefits of "green" household appliances and makeovers can help lower your future utility bills.