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Form 1040-ES Estimated Tax Declaration for Individuals

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2025 Declaration of Estimated Tax for Individuals (Form MO-1040ES)

(Revised 12-2024)

Return this form with check or money order payable to the Missouri Department of Revenue P.O. Box 555, Jefferson City, MO 65105-0555. If you pay by check, you authorize the Department to process the check electronically. Any returned check may be presented again electronically.

Department Use Only

Below are the instructions for completing Form MO-1040ES. Please print in black or blue ink. Do not use red ink or pencil.

1. Social Security Number - Enter the primary social security number as it will appear on your 2025 tax return.

2. Spouse’s Social Security Number - If you are filing a combined 2025 tax return, enter your spouse’s social security number.

3. Name Control - Enter the first four letters of your last name. (If filing a combined return, please also enter the first four letters of your spouse’s last name.) See examples below. (Please use all capital letters as shown.)

4. Name and Address - Enter your name, your spouse’s name (if applicable), and your mailing address.

5. 1st quarter through 4th quarter boxes - Mark the box for the quarter you are remitting payment.

6. Amount Paid - Enter the amount of your installment payment. If you completed the Estimated Tax Worksheet for Individuals, enter and pay the amount from line 16.

7. Make your check or money order payable to the Missouri Department of Revenue. Do not send cash (US funds only.)

8. Detach payment voucher and mail with your payment to: Missouri Department of Revenue, P.O. Box 555, Jefferson City, MO 65105-0555.

If the declaration must be amended:

1. Complete the amended computation schedule (see instructions).

2. Enter the revised amounts on the remaining Form MO-1040ES vouchers.

3. Mail with remittance (U.S. funds only), payable to the Missouri Department of Revenue, P.O. Box 555, Jefferson City, MO 65105-0555.

Ever served on active duty in the United States Armed Forces? If yes, visit dor.mo.gov/military/ to see the services and benefits we offer to all eligible military individuals. A list of all state agency resources and benefits can be found at veteranbenefits.mo.gov/state-benefits/.

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Return this form with check or money order payable to the Missouri Department of Revenue P.O. Box 555, Jefferson City, MO 65105-0555. If you pay by check, you authorize the Department to process the check electronically. Any returned check may be presented again electronically.

Department Use Only

General Instructions

1. Filing requirements - You are required to file a declaration of estimated tax if your Missouri estimated tax is expected to be $100.00 or more (Section 143.521.1, RSMo).

2. Missouri estimated tax - Your Missouri estimated tax is the amount estimated to be the income tax under Chapter 143 RSMo, for the tax year, less the amount which you estimate to be the sum of any credits allowable, including tax withheld.

3. Farmers - If you have an estimated Missouri gross income from farming for the tax year that equals at least two-thirds of the total estimated Missouri gross income, you may file a declaration of estimated tax and make payment at any time on or before January 15, or file an income tax return and pay in full on or before March 1.

4. Payment of estimated tax - Your estimated tax may be paid in full with the first declaration voucher, or in equal installments on or before April 15, June 15, September 15, and January 15.

5. Nonresident - If you are a nonresident, your estimated tax requirement is the same as a resident.

6. Changes in income - Even if your Missouri estimated tax on April 15 is such that you are not required to file a declaration at that time, the Missouri estimated tax may change so that you will be required to file at a later date.

7. Amended declaration - If, after you have filed a declaration, you find the Missouri estimated tax substantially increased or decreased as a result of a change in income, an amended declaration should be filed on or before the next filing date.

8. Addition to tax for failure to pay estimated tax - The law provides an addition to tax, determined at the present applicable rate of interest from the date of the first installment underpaid.

9. Rounding on Missouri returns - You must round all cents to the nearest whole dollar on your return.

Estimated Tax Worksheet

Married persons, each having income and filing a combined estimate, use Columns Y, S, and T. All others use only Column T.

Line Description Y - Yourself S - Spouse T - Total / One Income
1 Estimated adjusted gross income
2 Percentage of Column Y and S to total in Column T
3 Estimated pension exemption and social security/social security disability/military exemption
4 Deductions - (see instructions)
5 Additional exemption for Head of Household and Qualifying Widower(er)
6 Itemized deductions or standard deduction amount (see instructions)
7 Total Lines 3, 4, 5, and 6
8 Subtract Line 7 from Line 1. This is your total taxable income
9 Prorate Line 8 between spouses according to the percentages on Line 2
10 Tax (refer to tax rate chart)
11 Resident / Nonresident credits and withholding
12 Estimated tax (Line 10 less Line 11)
13 Estimated tax on lump sum distribution (see instructions)
14 Estimated recapture of low income housing credit
15 Total estimated tax to be paid (add Lines 12, 13, and 14)
16 Computation of installments (divide Line 15 by number of installments)

Amended Estimated Tax Worksheet

(Use if estimated tax is substantially changed after first Form MO-1040ES is filed)

Line Description Amount
1 Amended estimated tax (after credits and approved overpayment)
2 Less declaration payments
3 Unpaid balance (Line 1 less Line 2)
4 Amount to be paid (Line 3 divided by number of remaining installments)

Estimated Tax Worksheet Instructions

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What the Form 1040-ES Estimated Tax Declaration for Individuals Is

Form 1040-ES Estimated Tax Declaration for Individuals is the IRS payment voucher and worksheet used by individuals, sole proprietors, partners, and S corporation shareholders to estimate and pay quarterly federal income tax when withholding is insufficient. The form helps taxpayers calculate estimated tax liability for the year, report expected income, credits, and deductions, and schedule four installment payments to the IRS. Completing 1040-ES reduces the risk of underpayment penalties and aligns tax payments with income received throughout the year rather than waiting until filing Form 1040.

Why Filing Form 1040-ES Matters

Using Form 1040-ES helps you avoid underpayment penalties, smooth cash flow by spreading tax liability across four quarterly payments, and maintain compliance with IRS estimated tax rules (IRC §6654). Accurate estimates reduce surprise balances due at tax filing.

Why Filing Form 1040-ES Matters

Who Typically Prepares and Uses Form 1040-ES

Individuals and tax professionals complete Form 1040-ES when expected withholding will not cover annual tax liability; it applies to self-employed taxpayers, investors, retirees, and others with significant nonwage income.

  • Self-employed individuals and contractors with irregular withholding who need to make quarterly payments.
  • Investors and landlords receiving interest, dividends, or rental income that is not subject to withholding.
  • Retirees and beneficiaries receiving pensions, IRA distributions, or Social Security not fully taxed at source.

Use the worksheet and vouchers to estimate tax, submit quarterly payments, and keep records for Form 1040 reconciliation at year end.

Core Parts of a Professional 1040-ES Estimated Tax Declaration

A complete Form 1040-ES packet includes a worksheet for calculating estimated tax, payment vouchers, and guidance on payment methods and due dates.

Worksheet

Step-by-step calculations to estimate your annual adjusted gross income, tax liability, credits, and required installment amounts for each quarter, improving accuracy for payments.

Payment Vouchers

Four detachable vouchers used when mailing payments; each voucher is annotated with the quarter and mailing address for the IRS payment processing center.

Estimated Tax Table

Reference tax tables and rate schedules included to help compute expected tax based on filing status, taxable income, and applicable credits.

Instructions

IRS guidance for computing safe-harbor amounts, annualized income adjustments, and exceptions such as the annualized method for seasonal income.

Electronic Payment Options

Information on EFTPS, IRS Direct Pay, and credit/debit options that allow faster posting and reduced mail risk for installment payments.

Recordkeeping Notes

Recommendations on retaining worksheets, payment confirmations, and bank records to support amounts reported on the annual Form 1040.

Required Information and Fields on Form 1040-ES

Taxpayer Name: Full legal name
Social Security Number: SSN or ITIN
Address: Street, city, state, ZIP
Estimated Income: Annual expected income
Estimated Tax: Calculated tax liability
Payment Amount: Quarterly installment

Step-by-Step: Completing Form 1040-ES

Follow these steps each quarter to estimate tax, prepare a voucher, and submit payment to the IRS.

  • 01
    Gather Records: Collect year-to-date income, withholding, and deductible expenses.
  • 02
    Use Worksheet: Complete the worksheet to estimate annual tax and required installment.
  • 03
    Choose Payment Method: Select EFTPS, Direct Pay, or check with voucher as appropriate.
  • 04
    Submit and Retain: Send payment on or before due date and keep proof of payment.

How to Prepare and Submit 1040-ES Payments Online

Configure your payments workflow to use electronic payment methods and preserve evidence of each transaction.

Field Configuration
EFTPS Enrollment Register and schedule recurring payments for each quarter
IRS Direct Pay Use for single payments tied to a Social Security number
Bank Bill Pay Schedule payments with your bank; confirm timely postal or electronic posting
Payment Records Save confirmation numbers and bank statements for three years or longer

Where to Send Form 1040-ES Payments

Payments may be submitted electronically or by mail; method affects processing time and proof of timely payment.

  • EFTPS: Electronic Federal Tax Payment System — preferred for businesses and recurring payments
  • IRS Direct Pay: Individual single payments linked to your SSN; immediate confirmation available
  • Check by Mail: Attach voucher and mail to IRS address listed in instructions for your state
  • Third-Party Providers: Authorized payment processors can accept card or electronic payments for convenience

Digital Submission and ePayment Considerations

Electronic submissions require authentication, accurate taxpayer identifiers, and recorded confirmation to meet IRS timing rules.

  • Authentication: Use secure login and two-factor where available
  • Payment Receipt: Retain confirmation numbers and timestamps
  • File Formats: Save PDFs of worksheets and payment acknowledgements

Key Deadlines for Estimated Tax Payments

Know the quarterly due dates and the annual filing deadline to avoid penalties and to reconcile payments with your Form 1040.

First Quarter:

April 15 — payment for Jan 1–Mar 31

Second Quarter:

June 15 — payment for Apr 1–May 31

Third Quarter:

September 15 — payment for Jun 1–Aug 31

Fourth Quarter:

January 15 (following year) — payment for Sep 1–Dec 31

Annual Return:

April 15 — file Form 1040 and reconcile estimated payments

Quarterly Milestones for Estimated Tax Management

Maintain a simple quarterly cadence: estimate, pay, record, and review prior to the next installment.

01

Estimate Income

Project annual income and tax before each quarter's deadline.

02

Calculate Installment

Use the 1040-ES worksheet to compute the due payment amount.

03

Submit Payment

Send payment by the statutory due date using chosen method.

04

Document Receipt

Keep confirmations and reconcile with accounting records.

Common Mistakes to Avoid When Preparing 1040-ES

  • Underestimating income growth and underpaying can trigger an underpayment penalty under IRC §6654.
  • Failing to keep proof of electronic payment or a mailed voucher's postmark can cause disputes about timeliness.
  • Using an incorrect SSN or name spelling delays posting and can trigger backup withholding requirements.
  • Neglecting to adjust estimates for major life changes, like large capital gains or new income streams, increases year-end balances.

Penalties and Legal Risks from Incorrect or Late Payments

Underpayment Penalty: IRC §6654 — penalty assessed for insufficient timely installments
Late Payment: Interest accrues from due date on unpaid balance
Incorrect TIN: May trigger backup withholding at 24% and penalties
Recordkeeping Failure: Lack of proof complicates audits and appeals
Fraud Risk: Intentional underreporting can lead to civil and criminal exposure
State Penalties: State-level penalties apply for missed state estimated payments

Practical Tips for Accurate and Efficient Completion

Follow consistent processes each quarter to reduce errors and demonstrate compliance in case of audit.

Reconcile Regularly
Match estimated payments against accounting records and bank confirmations every quarter to detect posting issues promptly and adjust future estimates as income changes.
Use Electronic Payments
Prefer EFTPS or IRS Direct Pay to obtain immediate timestamps and confirmation numbers that serve as record evidence for timely payment.
Document Assumptions
Keep a brief note of assumptions used in worksheets—projected income, credits, and deductions—to justify year-end calculations if questioned by the IRS.
Adjust When Necessary
Recalculate estimates midyear after major events such as asset sales, business growth, or changes in withholding to avoid large year-end balances or penalties.

How Form 1040-ES Differs from Related Tax Documents

Compare 1040-ES to other common individual tax forms to choose the right document for payments, withholding, and final filing.

Document Primary Purpose Timing
Form 1040-ES estimate & pay quarterly tax quarterly installments
Form W-4 adjust employer withholding ongoing payroll changes
Form 1040 annual tax return and reconciliation filed annually
Form 1099-NEC report nonemployee compensation filed annually by payer

eSignature Platform Comparison for Digitizing 1040-ES Workflows

Vendor pricing and capabilities vary; signNow is listed first for comparison. Use the table to assess starting price, trial availability, bulk send, audit trail, HIPAA compliance, and envelope limits.

signNow DocuSign Adobe Sign PandaDoc HelloSign
Starting Price $8/user/mo $15/user/mo $14/user/mo $19/user/mo $15/user/mo
Free Trial 7-day free trial, no credit card Varies by vendor Varies by vendor Varies by vendor Varies by vendor
Bulk Send Yes Yes Yes Yes Yes
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Real-World Examples of Digital Signing in Tax Workflows

These customer observations illustrate how electronic signing and workflow automation reduce friction in document handling.

Optica Ventures

The interface is simple and easy-to-use for our team; more importantly, it is just as easy for our customers.

  • Quick adoption by staff reduced clerical follow-up by measurable amounts.
  • The result was fewer lost vouchers, clearer audit trails, and better reconciliation during year-end tax filing for clients.

Xerox

airSlate SignNow provides us with the flexibility needed to get the right signatures on the right documents, in the right formats, based on our integration with NetSuite.

  • Integration removed manual steps in payment confirmation.
  • That integration improved record accuracy and reduced time spent reconciling estimated payments and vendor interactions.

Frequently Asked Questions About Form 1040-ES

Answers to common questions about who must file, how to compute payments, and electronic submission options.


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