IT 2210-1040
Rev. 11/07
Instructions for Part I
IT 2210-1040 Line Instructions for Part I
Interest penalty = underpayment X interest rate X
number of days late/365*
Line 5 If your 2005 return reflected a period of less than 12
months, do not complete this line; instead, enter the
Example 2 – Full payment after the due date but before
amount from line 4p onto line 6.
the next due date. Assume that the underpayment on
line 16 for the April 17, 2006 due date is $1,000. Also
Line 11 Multiply the amount on line 6 by the percentage indicated
assume that the taxpayer paid this full amount on May
at the top of columns (a), (b), (c) and (d). However, if your
15, 2006. The taxpayer should ignore the ratio on line 17
income varied during the year (e.g., you operated a busi-
and compute the interest penalty on the late payment.
ness of a seasonal nature), you may be able to lower the
Step 1 – Determine the number of days from the date the
amount of your required payment for the due dates by
payment was due (April 17, 2006) to the date the pay-
using a different method called the annualized income
ment was made (May 15, 2006). April 17, 2006 to May 15,
installment method. To use this method to figure your
2006 = 28 days.
required installments, use the Annualized Income
Worksheet in Part II of this form and enter the amounts
Step 2 – The taxpayer should calculate the interest pen-
from Part II, line 24 of the worksheet into each column of
alty using the following formula:
Part 1, line 11. If you use the worksheet for any payment
due date, you must use it for all payment due dates.
Interest penalty = underpayment X interest rate X
number of days late/365*
Line 12 Unless you show otherwise, these amounts are deemed
to have been withheld rates throughout the year. For ex-
Interest penalty = $1,000 X .06 X 28/365 = $4.60
ample, if your total Ohio school district income tax with-
held for the year is $1,000, $250 is deemed to be with-
Interest penalty = $4.60. Enter this amount on line 18,
held for each payment due date. On a cumulative basis
column A.
the amount withheld is $250, $500, $750 and $1,000.
Example 3 – Partial payment after the due date, but
before the next due date. Assume the underpayment
Line 17 The listed ratios are based upon the statutory interest
shown on line 16 for the April 17, 2006 due date is $1,000.
rate (6% for 2006 and 8% for 2007) and the time during
Also assume that the taxpayer paid $600 of this amount
which the estimated payment was late. The general for-
of May 15, 2006. The taxpayer should ignore the ratio on
mula for computing the ratio is: ratio = interest rate x
line 17 and compute the interest penalty on the under-
numbers of days the payment is late/365.* The listed
payment for the periods both before and after the partial
ratios are computed from the payment due date at the
payment.
top of each column to the following payment due date
and apply only if the taxpayer either (1) never made the
Step 1 – Determine the number of days from the date
estimated payment or (2) made full payment on or after
the payment was due (April 16, 2006) to the date the
the next payment due date.
payment was made (May 15, 2006). April 17, 2006 to May
15, 2006 = 28 days.
For example, the ratio in column (a) is computed by mul-
tiplying the interest rate (6%) times the number of days
Step 2 – The taxpayer should calculate the interest pen-
from the 4/17/06 estimated payment due date to the
alty using the following formula:
6/15/06 estimated payment due date (59 days) and di-
viding by 365.
Interest penalty = underpayment X interest rate X
number of days late/365*
Ratio = interest rate x number of days late/365*
Ratio = .06 x 59/365 = .009699
Interest penalty = $1,000 X .06 X 28/365 = $4.60
Line 18 Multiply line 17 times line 16.
Interest penalty = $4.60
Example 1 – Assume that the underpayment shown on
Step 3 – Determine the number of days from the pay-
line 16 for the 4/17/06 due date is $1,000. Also assume
ment date (May 15, 2006) to the next required due date
that the taxpayer made no estimated payment during the
(June 15, 2006); May 15, 2006 to June 15, 2006 = 31
period 4/17/06 through 6/15/06. The taxpayer will com-
days.
pute interest penalty for the period 4/18/06 through 6/15/
06 by multiplying the underpayment shown on line 16,
Step 4 – Calculate the interest penalty on the $400
column (a) by the ratio .009699 shown on line 17, col-
($1,000 - $600) underpayment for the 31-day period from
umn (a):
May 15, 2006 to June 15, 2006 using the following for-
mula:
Interest penalty = $1,000 x .009699 = $9.70
Interest penalty = underpayment X interest rate X
However, if the taxpayer made a full or a partial payment
number of days late/365*
of the required estimated payment after the payment due
date, but before the next payment date, ignore the ratio
Interest penalty = $400 X .06 X 31/365* = $2.04
on line 17 and caclulate the interest penalty using the
Interest penalty = $2.04
following formula:
Step 5 – Add the amounts determined in Steps 2 and 4:
$4.60 + $2.04 = $6.64. Enter this amount in column A.
*For leap years use 366 days instead of 365 days.
- 2 -