Q3 estimated payments are due 15 September. If we prepare yours, it is already filed.

Renwick & Co
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(561) 555 0173
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  1. Next

    Third estimated payment, and extended business returns

    Quarterly filers, S-corps and partnerships on extension

  2. Extended individual returns

    1040 on extension

    An extension moves the filing, never the payment. If you owe, the interest started in April.

  3. Third-quarter 941 and RT-6

    Employers

  4. Fourth estimated payment

    Anyone paying quarterly

    For the year that just ended. Paying it by the 15th is what stops the underpayment penalty accruing.

  5. W-2s, 1099s, and the fourth-quarter 941 and RT-6

    Employers and anyone who paid a contractor

    Copies to the recipient and to the IRS on the same day. We file all of it for every payroll client.

  6. S-corp and partnership returns

    1120-S and 1065

    A month before the personal deadline, because the K-1 it produces is what your 1040 needs.

  7. Individual and C-corp returns, and the first estimated payment

    1040 and 1120

    Two things on one day, and the estimated payment is the one people miss.

  8. First-quarter 941 and RT-6

    Employers

  9. Second estimated payment

    Anyone paying quarterly

  10. Second-quarter 941 and RT-6

    Employers

Federal dates for an owner-managed business. A date that falls on a weekend or a federal holiday moves to the next working day. Florida has no personal income tax return; the RT-6 and sales tax run to their own calendar and we file those too.