If your combined income is over $230,000 does this mean you can not contribute at all to a Roth IRA?

If you are filing married filing jointly  and your Modified AGI 

• > $230,000 but < $240,000 you can contribute a reduced amount
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• > $240,000 you can't make any contribution

Check irs.gov for Amount of your reduced Roth IRA contribution

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To avoid  the penalty, you have two options (both must be completed before your tax filing deadline):

• Withdraw the excess contribution plus earnings: Keep in mind that the earnings are included in your taxable income for the year the excess contribution was made, so you’ll still receive a 1099-R to report these earnings on your tax return.
• Recharacterize the Roth IRA contribution as a traditional IRA contribution.

For more information, check: Excess Roth IRA contribution