Form 83-305 Fillable Interest and Penalty on Underestimate of Corporate Income Tax
(all forms fillable on Windows, Mac, Android tablets, and iPad using Adobe Reader XI)

(: 1) Unchecked (: 2) Unchecked (corporations) or on Form 84 105 page 1 line 14 (composite (line 15 plus line 16 Enter on Form 83 105 page 1 line 14 (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) (text) 1 Current year income tax due (from Form 83 105 line 8 (corporations) 10 Cumulative tax liability (enter cumulative amount from line 5) 11 Cumulative overpayment (enter cumulative amount of estimates 12 Total underpayment/overpayment of estimates (subtract line 10 13 Enter percentage of interest (compute interest at 9/10 of 1% per 14 Underestimated interest due (multiply line 12 by line 13) 15 00 15th of 12th Month 15th of 4th Month 15th of 6th Month 15th of 9th Month 16 00 17 00 2 Ninety (90%) of current year income tax due (multiply line 1 by 90%) 2 00 3 Estimated payment per quarter (divide line 2 by four) 3 00 4 Estimate due dates (enter the dates in columns (a) through (d)) 5 Required estimate each quarter (enter amount from Part I line 3) 6 Estimated tax paid each quarter 7 Overpayment (enter amount if any from previous year or 8 Total (subtract line 5 from line 6 and line 7 enter in column (a) 9 Underestimated penalty due (multiply line 8 by 10% If Annualized Income Method AmendedFEIN Form 83 305 14 8 1 000 (Rev 05/14) from line 11 If the result is negative enter zero) If negative (overpayment) enter zero and carry amount (positive) in the next quarter(s) line 7 column(s) (b) (c) (d)) Mississippi month from payment due date until paid or next payment due date negative enter zero) or Form 84 105 line 8 (composite S corporations)) 1 00 paid plus any overpayment from prior year; line 6 plus line 7) PART I: CALCULATION OF ESTIMATED PAYMENT PART II: PENALTY CALCULATION PART III: INTEREST CALCULATION PART IV: UNDERESTIMATED INTEREST & PENALTY DUE quarter(s) line 7 in columns (a) (b) (c) or (d)) S corporations and composite partnerships only) Total interest due (total of line 14 columns (a) (b) (c) and (d)) Total penalty due (total of line 9 columns (a) (b) (c) and (d)) Total underestimated interest and penalty due Underestimate of Corporate Income Tax Worksheet whichever is earlier)