What Is State Corporate Income Tax

Most states impose a Corporate Income Tax on corporate earnings.  C Corporations pay the corporate tax rate.  S Corporation, LLC, Partnerships and Sole Proprietors pay taxes based on the Personal Tax Rate.  

What Is The Tax Base

The starting point for most States’ Corporate Income Tax Return is federal taxable income, which is income minus deductions. Next, the federal taxable income is changed by adding back certain items (e.g., state, municipal, and other interest income excluded from federal taxable income) and subtracting others (e.g., interest income from U.S. Treasury obligations). The result is “base income.”

 
Who Must File & Pay Coporate Taxes
You must file a return if you are a corporation has the net income or loss requirement as defined by each State; or Is qualified to do business in the state and is required to file a federal income tax return (regardless of net income or loss).

For most States Corporations must file Tax Return, annually by the 15th day of the 3rd month following the close of the taxable year.

Most states consider S Corporations, LLCs, and Partnerships the same as C Corporations when it comes to filing coporate taxes.  Hence, the same form is used to file and pay taxes.

You can simplify the process by  filing based on the calendar year instead of the fiscal year.  Your business year starts on the day your form the company.  This is how your tax filing schedule is based.  If your form your company in June then your schedule will be on a fiscal basis.  To change this to a calendar year basis you can do a short file for the number of months you've been in business for the year, to end your year in December and start filing on a calendar year basis.

Estimated payments

Corporations — Corporations (other than S corporations) who can reasonably expect their income tax liability to be more than a certain amount (depending on individual State policy) must make quarterly estimated payments. Estimated Payments are due on the 15th day of the 4th, 6th, 9th, and 12th months of the tax year for most states. 

 

Failure to pay estimated taxes on time can result in  fines.

 

Each type of tax requires a different eFiling account in order to make payment.  You must sign up for an eFiling account for each type of tax you have to pay in order to make payment.

 

Some states allow you to mail in payments if the amount is below a certain threshold.  But the majority of payments you have to use the respective State’s eFiling system to make electronic payments.
Electronic payments allow you to make payments by transferring payments from your business account to the state or federal government accounts established in your business name.

 

 

See below for individual states requirements for estimating and paying corporate taxes..


State

Filing Date:

 

S Corporation

 

Filing Date:

 

Corporations

 

Who must Make Estimated Tax Payment:

Estimated Tax Payment Dates

AL

15th day of the 3rd month following the end of the S-corporation tax period.

 

Forms

15th day of the 3rd month following the end of the corporation tax period.

 

Forms

If your tax liability is $500 or more you are required to make estimated tax payments.

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment

 

 

Forms

 

 

Payment

 

AK

No personal tax rate.  S Corporations, LLC,s and Partnerships hnave no tax requirement.

 

 

 

 

 

Forms

6000

6020

30 days after the federal return due date.

 

However, payment must be made on or before the 15th day of the third month after the close of the tax year

 

Forms

6000

6020

 

n/a

n/a

 

 

Forms

 

 

No eFile Payment system

AZ

 15th day of the third month following the close of the taxable year.

 

 

 

Forms

120

 

15th day of the fourth month following the close of the taxable year for regular ("C") corporations.

 

Forms

120

If taxes are estimated to be $1,000 or more.

 

 

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment

 

Forms

 

Payment

Must eFile if estimated taxes for the prior year was $20,000 or more.

 

AR

15th day of the third month after the close of the corporation’s tax year.

 

Forms

AR1100CT

 

 

15th day of the third month after the close of the corporation’s tax year.

 

Forms

AR1100CT

Arkansas taxpayers are required to fi le an Estimated Declaration when their liability exceeds $1,000.

 

15th day of the 4th, 6th, 9th and 12th months of the tax year.

 

Forms
 AR1100CT

 

eFile Payment

CA

15th day of the 3rd month after the close of the taxable year.

 

Forms

540

15th day of the 3rd month after the close of the taxable year

 

Forms

540

 

If taxes are estimated to be over $500

 

 

The 1st payment is due by the 15th day of the 4th, 6th, 9th, and 12th months respectively, of the taxable year.

 

Note:  Partnership & LLC income tax returns due Apr 15.

 

Forms

100-ES: Corporate Estimated Tax

 

100-S or 100-W: Fr4anchise or Income tax

 

eFile Paymenty

 

CO

3˝ months after the end of your tax year, or by April15,2014 for traditional calendar year filers.

 

Forms

eFile

3˝ months after the end of your tax year, or by April15,2014 for traditional calendar year filers.

 

 

Forms

eFile

 

If the corporation's Colorado tax liability for the tax year will exceed $5,000.

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment.

 

The payments will be due for fiscal year filers on the 15th day of the fourth, sixth, ninth and twelvth month of the tax year.

 

Forms

112: Corporate Income Tax

 

eFile Payment

 

CT

1st day of the fourth month following the close of each taxable year of the entity (April 1 for calendar year filers).

 

Forms

CT-1120

 

1st day of the fourth month following the close of each taxable year of the entity (April 1 for calendar year filers).

 

 

Forms

CT-1120

 

If taxes are estimated to be $1,000 or more

 

 

 

 

 

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment

 

Forms

CT-1120: Corporate Business Tax

 

eFile Payment

 

DE

For calendar year taxpayer, on or before April 1 of the following year. In the case of a fiscal year taxpayer, the return is due on or before the first day of the fourth month following the close of the fiscal year.

 

Forms

1100EZ

 

For calendar year taxpayer, on or before April 1 of the following year. In the case of a fiscal year taxpayer, the return is due on or before the first day of the fourth month following the close of the fiscal year.

 

 

Forms

1100EZ

 

If you expect to owe $5,000 or more you have to pay estimated taxes

 

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment

 

Forms

1100EZ: Corporate Income Tax

 

 

eFile Payment

 

FL

No personal tax rate

Based on corporation tax year.  The 15th day following the due date.

 

Forms

F-1120

 

If taxes are estimated to be over $2,500

 

Only to required to file tax return if income is $20,000 or more in the prior fiscal year.

 

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment
Dec 15:  4th installment

 

 

Forms

F-1120: corporate Income/Franchise Tax

 

 

eFile Payment

 

GA

15th day of the 3rd month following the close of the taxable year.

 

Forms

600

 

15th day of the 3rd month following the close of the taxable year

 

Forms

600

 

If estaimated net income is expected to exceed $25,000.

 

 

15th day of the 4th, 6th, 9th and 12th month of the taxable year

 

Forms

600:  Corporate Income Tax

 

eFile Payment

 

HI

20th day of the fourth month following the close of the tax year.

 

Forms

N-30

 

20th day of the fourth month following the close of the tax year.

 

Forms

N-30

 

If taxes are expected to be $500 or more.

 

 

Apr 20:  1st installment
Jun 20:  2nd Installment
Sep 20:  3rd Installment
Jan 20:  4th installment

 

For fiscal year the 20th day of the 4th, 6th, and 9th months of the fiscal year and on or before the 20th day of the 1st month following the close of the fiscal year.

 

Forms

N-30:  Corporate Income Tax

 

eFile Payment

 

ID

15th day of the 4th month following the close of the tax year

 

Forms

41

 

15th day of the 4th month following the close of the tax year.

 

 

Forms

41

 

Estimated payments aren't required for the first year a corporation is in Idaho. A corporation must make estimated tax payments to Idaho if it's required to make federal estimated payments and the Idaho tax liability is estimated at $500 or more.

 

 

Due the 15th day of the 4th, 6th, 9th and 12th month of the  of the tax year.

 

 

 

Forms

41:  Corporate Income Tax

 

eFile Payment

Must pay electronically if making of $100,000 or more.

IL

15th day of the 3rd month following the close of the taxable year.

 

Forms

IL-1120

 

15th day of the 3rd month following the close of the taxable year.

 

Forms

IL-1120

 

If tax liability is expected to be more than $400.  S Corporations are exempt.

 

Due the 15th day of the 4th, 6th, 9th and 12th month of the  of the tax year.

 

 

 

Forms

IL-1120:  Corporate Income Tax

 

eFile Payment

Must use electronic payment if annual tax liability is $20,000 or more.

IN

15th day of the 4th month following the close of the tax year.

 

Forms

IT-20

 

15th day of the 4th month following the close of the tax year.

 

 

Forms

IT-20

 

No info available

 

 

Apr 20

Jun 20

Sep 20

Dec 15:

 

Forms

IT-20

 

ePay Payment

 

IA

the last day of the 4th month after the close of the tax year.

 

Forms

IA 8453

IA 1120

 

the last day of the 4th month after the close of the tax year.

 

 

Forms

IA 1120

IA 1120

Every corporation with $1,000 or more in tax due after credits must file and pay estimated tax.

 

The last day of the fourth month of the calendar or fiscal year.  The last day of the sixth month of the calendar or fiscal year.  The last day of the ninth month of the calendar or fiscal year.  The last day of the 12th month of the calendar or fiscal year.

 

Forms

IA 8453-C

IA 8453-S

IA 1120

 

Payment

 

KS

 

15th day of the 4th month following the end of the tax year.

 

Forms

K-120

 

15th day of the 4th month following the end of the tax year.

 

 

Forms

K-120

 

A corporation is required to make estimated tax payments for the taxable year if its Kansas income tax liability can reasonably be expected to exceed $500. A corporation is not required to file a declaration of estimated tax in its first year of existence in Kansas.

 

Corporate estimated tax vouchers are due on or before the 15th day of the fourth, sixth, ninth, and twelfth months of the corporate taxable year

 

 

Forms

K-120

 

Payment

KY

15th day of the 4th month following the end of the tax year.

 

Forms

740

15th day of the 4th month following the end of the tax year.

 

 

Forms

720

If taxes are estimated to be over $5,000.

 

 

 

Payment of estimated taxes are due based on when you make your declaration.  Visit the Kentucky website to learn more.

 

 

Forms

10A100

 

Payment

 

LA

1st day following last day of taxable year.

 

Forms

 

 

 

1st day following last day of taxable year.

 

Forms

 

 

If taxes are estimated to be over $1,000

 

 

 

15th day of 4th, 6th, 9th, and 12th months of taxable year

 

Forms

R-6701 (CIT-624)

 

Payment

 

ME

15 Mar

 

Fiscal year taxpayers are required to file, with payment, on or before the 15th day of the third month following the close of the taxable year.

 

Forms

1120ME

 

15 Mar

 

Fiscal year taxpayers are required to file, with payment, on or before the 15th day of the third month following the close of the taxable year.

 

Forms

1120ME

 

If taxes are estimated to be more than $1,000

 

 

 

 

15th day of the 4th, 6th, 9th and 12th months following the beginning of the corporation’s fi scal year.

 

 

Forms

1120ME

 

Payment

 

MD

15th day of the third month following the close of the taxable year or period, or by the original due date required for filing the federal return.

 

Forms

500

15th day of the third month following the close of the taxable year or period, or by the original due date required for filing the federal return.

 

 

Forms

500

 

if taxes are estimated to be in excess of $1,000 for the tax year

 

 

15th day of the 4th, 6th, 9th and 12th months

 

4 equal payments

 

Forms

500: Income Tax

500D: Estimated Tax

 

Payment

 

MA

15th day of the fourth month following the close of the taxable year.

 

Forms

355

 

15th day of the fourth month following the close of the taxable year.

 

Forms

355

 

If state taxs are estimated to be over $400

 

Massachusetts corporate income tax is called the Excise tax which is based on net worth and income.

15th day of the 4th, 6th, 9th months and 15 January of the following year.

 

Forms

355:  Escise/Income tax

 

 

Payment

 

MI

The last day of the 4th month after tax year end with payment of final liability.

 

Forms

4913

 

The last day of the 4th month after tax year end with payment of final liability.

 

Forms

4913

 

If  state taxs are estimated to be over $800

 

 

Apr 15:  1st installment
Jul 15:  2nd Installment
Oct 15:  3rd Installment

Jan 15:  4th installment

 

Fiscal Year Filers: Return and payment due the 15th day of the first month after each quarter

 

 

Forms

4913: Income Tax

 

Paymnent

 

MN

By the due date for filing your federal return. Generally, this is March 15 of the following year or, if you file on a fiscal year basis, the 15th day of the third month following your tax year.

 

Forms

M4

 

Due on the same date as your federal Corporation Tax Return. Generally, this is the 15th day of the third month following the tax year.

 

 

 

Forms

M4

 

 

 

If state taxes are estimated to be $500 or more

 

 

Franchise tax replaces the Income tax.  Only C corporations pay the franchise tax in addition to a minimum fee.  The minimum fee is based on the value of property, payroll and sales.

 

 

Corporation:  Quarterly installments are due by the 15th day of the third, sixth, ninth and 12th months of your tax year.

 

 

S-Corporation: Quarterly installments are due by the 15th day of the fourth, sixth and ninth months of the tax year and the first month following the end of the tax year.

 

 

Forms

1120-W: Estimated Tax

 

 

Payment

 ePay requried if taxes are more than $10,000

MS

15th day of the 4th month following the taxable year.

 

Forms

83-105

 

15th day of the 3rd month following the close of the taxable year.

 

Forms

83-105

 

If state taxes are estimated to be $200 or more

 

 

 

 

 

Payments are made monthly or quarterly.

 

 

Forms

83300: Estimated Income Tax

 

 

Payment

 

MO

15th day of the 4th month following the end of the taxable year.

 

Forms

MO-1120

 

 

15th day of the 4th month following the end of the taxable year.

 

Forms

MO-1120

 

 

If taxes are estimated to be $500 or more

 

 

 

April 15, June 15, September 15, and January 15

 

 

reference

 

Forms

MO-1120ES

 

Payment

 

MT

15 Apr

 

Forms

 CLT-4

 

The C-corporation income tax return is due on the 15th day of the 5th month following the end of the corporation's taxable year.

 

Forms

 CLT-4

 

If taxes are estimated to be  $5,000 or more

 

 

 

15th day of the 4th, 6th, 9th and 12th months of their tax year.

 

 

Forms

 CLT-4

 

Payment

 

NE

15th day of the third month following the close of the taxable year.

 

 

Forms
1120N

 

15th day of the third month following the close of the taxable year

 

Forms
1120N

 

If taxes are estimated to be $400 or more

 

 

 

Apr 15:  1st installment
Jul 15:  2nd Installment
Oct 15:  3rd Installment

Jan 15:  4th

 

 

Forms
1120N-ES

 

ePay

 

NV

No personal tax rate

No corproate tax

 

 

NH

15th day of the 3rd month following the end of the taxable period.

 

Proprietorship, partnership and fiduciary returns are due on the 15th day of the 4th month following the end of the taxable period.

 

 Forms

15th day of the 3rd month following the end of the taxable period.

 

Forms

If taxes are estimated to be over $200.

 

Organizations with $50,000 or less of gross receipts from all their activities are not required to file a return.

 

 

 

No withholding requirement

15th day of the 4th, 6th, 9th & 12th month of the taxable period

 

 

Forms

NH-1065-ES

NH-1120-ES

 

Payment

 

NJ

A tax return must be filed for each fiscal year, or part thereof, beginning on the date the corporation acquired a taxable status.

 

Forms

BET

 

A tax return must be filed for each fiscal year, or part thereof, beginning on the date the corporation acquired a taxable status.

 

Forms

BET

If gross receipts are estimated to be over $50,000.000

 

 

 

4th month

6th month

9th month

12th month

 

 

Forms

NJ-1040-ES

 

Payment

 

NM

15th day of the third month following the close of the tax year.

 

Forms

CIT-1

15th day of the third month following the close of the tax year.

 

 

Forms

CIT-1

 

If taxes are estimated to be over $5,000

 

 

 

15th day of the fourth, sixth, ninth, and twelfth months of the corporation's tax year.

 

Forms

CIT-ES

 

ePay

 

NY

15 Mar – Calendar year

 

Within 2 ˝ months after end of reporting period – Fiscal year

 

Forms
CT-3

15 Mar – Calendar year

 

Within 2 ˝ months after end of reporting period – Fiscal year.

 

Forms
CT-3

If franchise taxes are estimated to be over $1,000

 

 

 

 

 

15 Mar – Calendar year

 

Within 2 ˝ months after end of reporting period – Fiscal year

 

Forms

CT-400

 

ePay

 

NC

15th day of the third month following the close of the income year.

 

Forms

CD-401

 

15th day of the third month following the close of the income year.

 

Forms

CD-405

 

If taxes are estimated to be over $500

 

 

 

15th day of the 4th, 6th, 9th and 12th months of the taxable year

 

 

Forms

CD-429

 

 

ePay

 

ND

15th day of the fourth month following the close of the tax year.

 

Forms

Form 40

15th day of the fourth month following the close of the tax year.

 

Forms

Form 40

 

If taxes are estimated to be over $5,000 and the previous year’s liability was greater than $5,000

 

 

 

 

Apr 15:  1st installment
Jun 15:  2nd Installment
Sep 15:  3rd Installment

Jan 15:  4th

 

 

No Forms.  Must pay and file electronically.

 

Payment

 

OH

 

 

10 May

 

Forms

CAT-1

must file quarterly:

May 10, Aug 10, Nov 10 & Feb 10.

 

10 May for annual tax payers.

 

Forms

CAT-1

 

If gross receipts are expected to exceed $150,000.

 

Businesses that make less than $150,000 don’t have to pay this tax

 

Ohio’s corporate income tax is called the Commercial Activity Tax (CAT)

  

May 10: 1st quarter

Aug 10: 2nd quarter

Nov 10: 3rd quarter

Feb 10: 4th quarter

 

 

No Forms.  Must file & pay online..

 

 

Payment

 

OK

15th day of the third month following the close of the taxable year.

 

Forms

512

15th day of the third month following the close of the taxable year.

 

Forms

512

 

If taxes are estimated to be above $500

 

 

on or before the 15th day of

the fourth month of the taxable year;

on or before the 15th day of

the sixth month of the taxable year;

on or before the 15th day of

the ninth month of the taxable year;

on or before the 15th day of

the first month of the succeeding taxable year

 

Forms

OW-8-ESC

 

Payment

 

OR

15 Apr

 

Returns for fiscal year filers are due the 15th day of the month following the due date of your federal corporation return.

 

Forms

240

15 Apr

 

Returns for fiscal year filers are due the 15th day of the month following the due date of your federal corporation return.

 

Forms

240

 

 

If taxes are estimated to be above $500

 

 

All corporation must pay the Excise tax instead of the Income tax.

 

1st: 15th day of the 4th month of the corporation's tax year
2nd: 15th day of the 6th month of the corporation's tax year
3rd: 15th day of the 9th month of the corporation's tax year
4th: 15th day of the 12th month of the corporation's tax year

 

 

Forms

40-V

 

Payment

 

PA

15 Apr of the year following the tax year for which the report is submitted for calendar year reporting corporations, or 30 days after the federal due date for corporations reporting to the Federal Government on a fiscal year basis.

 

Forms

rct-101

15 April of the year following the tax year for which the report is submitted for calendar year reporting corporations, or 30 days after the federal due date for corporations reporting to the Federal Government on a fiscal year basis.

 

Forms

rct-101

 

No minimum amount established. 

 

Determine the minimum amount you must pay by multiplying your prior year's income by the current tax rate and divide that amount by four.

 

 

 

March 15th, June 15th, September 15th and December 15th for calendar year filers or the 15th day of the 3rd, 6th, 9th and 12th months of the taxpayer's taxable year for fiscal filers.

 

Forms

PA_8453-C

 

Payment

Must use epayment if payments are $1,000 or more.

RI

15th day of the third month following the close of the taxable year.

 

Forms

1065

1120(S)

15th day of the third month following the close of the taxable year.

 

Forms

1120

 

If taxes are estimated to be above $500

 

 

 

 

13th day of the 4th month

13th day of the 6th month

13th day of the 10th month

31st day of the 12th month

 

Forms

TX-17

 

Payment

 

SC

Returns are due at the same time as federal returns.  15th day of the 3rd month after close of tax year.

 

Forms

SC 1120S

 

Returns are due at the same time as federal returns.  15th day of the 3rd month after close of tax year.

 

Forms

SC 1120

If taxes are estimated to be above $100

 

Estimated tax payment amounts and due dates are determined using federal rules.  15th day of the 4th, 6th, 9th and 12th months.

 

Forms

SC- 1120 CDP

 

Payment

 

SD

No personal tax rate

No Corporate tax

 

 

TN

15th day of the fourth month following the end of the taxpayer's fiscal/federal tax year.

 

File online

15th day of the fourth month following the end of the taxpayer's fiscal/federal tax year.

 

File online

If taxes are estimated to be above $5,000

 

 

 

15th day of the fourth, sixth, and ninth months of the current tax year and the first month of the next

tax year.

 

 

Payment

All business tax must be paid electronically.

TX

No personal tax rate

No Corporate Tax

 

 

UT

15th day of the fourth month following the close of the taxable year.

 

Forms

TC-20

15th day of the fourth month following the close of the taxable year.

 

Forms

TC-20

 

If taxes are estimated to be above $3,000 or had a tax liability of $3,000 in the previous year

 

 

 

15th day of the 4th, 6th, 9th and 12th months of the corporation’s taxable year.

 

1st quarter:  22.5%

2nd quarter:  45.0%

3rd quarter:  67.5%

4th quarter:  90.0%

 

 

Payment

All payments are made electronically.

VT

17th day of the 3rd month after the end of the calendar year.

 

15th day of the 3rd month after the end of the tax year for fiscal year.

 

S-Corp, Partnerships & LLC’s pay the Business Entity/Income Tax

 

Forms

BI-472

CO-411

 

 

17th day of the 3rd month after the end of the calendar year.

 

 

15th day of the 3rd  month after the end of the tax year

 

C-Corp pay the Corporate income Tax.

 

Forms

CO-411

Minimum estimated tax is $250

 

 

 

15th day of the 4th, 6th and 9th months of the tax year and the 1st month of the subsequent year.

 

For calendar year entities, these dates are

normally April 15th, June 15th, September 15th, and January 15th

 

Forms

CO-414

 

Payment

Must file electronically if more than 25 employees.

VA

15th day of the fourth month following the close of their taxable year.

 

Forms

500

15th day of the fourth month following the close of their taxable year.

 

 

Forms

500

 

If taxes are estimated to be above $1,000

 

 

 

15th day of the 4th, 6th,  9th and 12th months of the tax year.

 

 

 

Payment

All payments must be made electronically.

WA

No personal tax rate

No Corporate tax

 

 

WV

15th day of the fourth, sixth, ninth, and twelfth months of your taxable year.

 

If your short taxable year is less than four months long, there are no requirements to make estimated payments of your liability.

 

Forms

CNF120T

 

15th day of the fourth, sixth, ninth, and twelfth months of your taxable year.

 

If your short taxable year is less than four months long, there are no requirements to make estimated payments of your liability.

 

 

Forms

CNF120T

If taxes are estimated to be above $10,000

 

 

Forms

WV120V

 

 

Payment

WI

15th day of the 3rd month following the close of its taxable year.

 

Returns for short taxable years (periods of less than 12 months) are due on or before the federal due date.

 

Forms

Form 5

 

15th day of the 3rd month following the close of its taxable year.

 

Returns for short taxable years (periods of less than 12 months) are due on or before the federal due date.

 

 

Forms

Form 5

 

If taxes are estimated to be above $500

 

 

 

April 15, 2013, June 17, 2013, September 16, 2013, and January 16, 2014.

 

 

Forms

4-ES

 

Payment

WY

No personal tax rate

No Corporate Tax