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Do state estimated tax dates match the federal ones?

Sales tax & state compliance

Several states align with the federal quarters, and others do not. Thresholds for who must pay also differ.

Check each state separately. Companies routinely stay current federally while missing a state schedule nobody looked up.

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How to Handle State Tax Extensions and Avoid Penalties
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Check your EIN confirmation letter (CP 575) first. If that is gone, look at a previously filed tax return, a business bank account application, or any 1099 you have issued. Your bank or your payroll provider will also have it on file.

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