Minnesota taxpayers are being warned not to use some popular tax return programs including TurboTax.

The Minnesota Department of Revenue said Friday that the software company Intuit discovered problems with some of its tax return products, including TurboTax, Lacerte, Intuit online and ProSeries. Officials say those issues could delay tax refunds or make them inaccurate.

Intuit officials say the problems are isolated to Minnesota.

Company spokeswoman Julie Miller says the problems are affecting several portions of the 2012 tax returns, including property tax refunds, education expenses and $5 political contributions. She says about 10,000 tax returns will be affected.

Miller says people who've already filed have been notified, and the company will refund anyone who asks. She says software updates have been pushed out to try to fix the problem.