Missouri § 143.521 - Declarations of estimated tax.

Full text of Missouri Revised Statutes of Missouri § 143.521 — Declarations of estimated tax., with citation guidance and answers to common questions.

§ 143.521. Declarations of estimated tax.

1.  Every resident and nonresident individual shall make a declaration of estimated tax for the taxable year, in such form as the director of revenue may prescribe if the Missouri estimated tax can reasonably be expected to be at least one hundred dollars.  The director may increase the amount required for making a declaration of estimated tax to more than one hundred dollars or decrease such required amount, however, the decreased amount shall not be less than one hundred dollars.

2.  Every corporation doing business in this state shall make a declaration of its estimated tax for the taxable year, in such form as the director of revenue may prescribe, if its Missouri estimated tax can reasonably be expected to be at least two hundred fifty dollars.  The director may increase the amount required for making a declaration of estimated tax to more than two hundred fifty dollars or decrease such required amount, however, the decreased amount shall not be less than two hundred fifty dollars.

3.  The term "Missouri estimated tax" means the amount which the taxpayer estimates to be the income tax under sections 143.011 to 143.996 for the taxable year less the amount which the taxpayer estimates to be the sum of any credits allowable, including tax withheld.

4.  If they are eligible to file a joint declaration for federal tax purposes, a husband and wife may make a combined declaration of estimated tax as if they were one taxpayer, in which case the liability with respect to the estimated tax shall be joint and several.  If a combined declaration is made, the estimated tax for such year may be treated as the estimated tax of either husband or wife, or may be divided between them, as they may elect on a combined return or on their separate returns.

5.  An individual or corporation may amend a declaration under regulations prescribed by the director of revenue.

6.  If on or before January thirty-first (on or before March first in the case of a farmer referred to in subsection 2 of section 143.531) of the succeeding taxable year an individual files a return for the taxable year for which the declaration is required, and pays in full the amount shown on the return as payable, such return:

(1)  Shall be considered as his declaration if no declaration was required to be filed during the taxable year, but is otherwise required to be filed on or before January fifteenth; or

(2)  Shall be considered as the amendment permitted by subsection 5 to be filed on or before January fifteenth if the tax shown on the return is greater than the estimated tax shown in a declaration previously made.

7.  An individual or corporation having a taxable year of less than twelve months shall make a declaration in accordance with regulations of the director of revenue.

8.  The declaration of estimated tax for an individual under a disability shall be made and filed in the manner provided in section 143.501 for an income tax return.

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(L. 1972 S.B. 549, A.L. 1988 H.B. 1054, et al., A.L. 1998 H.B. 1301)

---- end of effective  28 Aug 1998 ----

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Source: official Missouri text · Last verified 2026-08-27

Frequently Asked Questions About Missouri § 143.521

What does Revised Statutes of Missouri § 143.521 cover?

Section 143.521 ("Declarations of estimated tax.") is part of the Revised Statutes of Missouri, the codified statutory law of Missouri. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Missouri § 143.521?

A common citation format is "Revised Statutes of Missouri § 143.521" (Missouri). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Missouri law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Missouri official source linked on this page or consult a licensed Missouri attorney.

How does Missouri § 143.521 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Missouri can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Missouri.