Form 941 Instructions & FICA Tax Rate 2018 (+ Mailing Address)

FICA taxes include Social Security and Medicare taxes with employer rates of 6.2% and 1.45%, respectively. Form 941 is a quarterly tax form that tracks FICA tax payments made by employers throughout the year. FICA taxes are typically due monthly or semiweekly, and Form 941 is due quarterly.

You can download Form 941 here. However, if you’d rather not manually pay FICA taxes and fill out Form 941, you can use a payroll program like Gusto. They help you by automatically paying FICA taxes and filling out payroll forms so you don’t have to do it yourself. Check them out for a free 30-day trial:

Visit Gusto

FICA Tax Rate & When to Pay

FICA taxes include the combination of Social Security tax and Medicare tax. Employees and employers share the total tax burden 50/50 and pay either monthly or semiweekly. Half of the FICA tax amount owed is paid by the employer and the other half is withheld from an employee’s paycheck.

The two taxes that make up your employer FICA taxes include:

• Social Security Tax (12.4% total) – 6.2% is withheld from employee paychecks and the remaining 6.2% is paid by the employer. The tax is paid on wages up to $127,200.
• Medicare Tax (2.9% total) – Employees’ share of 1.45% is withheld from their paychecks while the employer pays the remaining 1.45%. There is no income cap on taxes.

As an employer, it is your responsibility to remit both the employee share and your share of FICA taxes on time. We discuss whether or not you have to pay monthly or semiweekly in the section below.

All payroll taxes that are paid by the employer as well as withheld from employee paychecks, including employer FICA taxes, are reported on Form 941 and filed quarterly. Let’s now take a look at who has to file Form 941, including when and how to file it.

Who Has to File Form 941

As an employer, you are required to withhold taxes from your employees’ paychecks. Generally, these taxes include income taxes, Social Security, and Medicare taxes. The IRS requires that you report these taxes quarterly on Form 941. The employer’s share of FICA taxes is reported on Form 941 along with the employee’s share.

In general, you typically have to file Form 941 if you have employees that you paid during the year. You must use Form 941 to report the following:

• Wages you paid to your employees
• Tips your employees reported to you
• Federal income tax you withheld from employees paychecks
• Both employee and employer share of Social Security and Medicare taxes

However, if you only use independent contractors, you don’t have to file Form 941. To learn more about the benefits of independent contractors vs. full time employees, check out our guide on hiring employees and freelancers.

When to File FICA Form 941

The due date to file Form 941 is the same for all employers, regardless of whether you are a monthly or semiweekly depositor for FICA taxes. Form 941 is due on the last day of the month that follows the end of the quarter. You will submit Form 941 four times per year. Below you will find a summary table of the due dates for Form 941.

Due Dates for Form 941

Quarter	2017	2018	2019
1st Qtr (Jan 1 - Mar 31)	May 1*	April 30	April 30
2nd Qtr (Apr 1 - Jun 30)	July 31	July 31	July 31
3rd Qtr (Jul 1 - Sept 30)	October 31	October 31	October 31
4th Qtr (Oct 1 - Dec 31)	January 31	January 31	January 31

*April 30 falls on a Sunday

Form 941 – Employer’s Quarterly Tax Return is due on the last day of the month following the end of the quarter. For example, first quarter ends March 31 which means the due date is April 30. If the due date does not fall on a normal business day, the due date is the following business day.

Where To Mail Form 941

Nowadays, the best way to file tax forms is to use e-file. This service offered by the IRS allows you to file your tax returns electronically for free. Filing your tax return electronically will ensure that it is received on time.

If you prefer to go the snail mail route, the state you live in will determine where your tax return is mailed. Refer to the table below for the address to mail your 941 return. Remember that information may change and it’s always best to verify your mailing address before sending anything.

Form 941 Mailing Address By State

State	Without a payment	With a payment
CT, DE, DC, FL, GA, IL, IN, KY, ME, MD, MA, MI, NH, NJ, NY, NC, OH, PA, RI, SC, TN, VT, VA, WI	Department of the Treasury Internal Revenue Service Cincinnati, OH 45999-0005	Internal Revenue Service P.O. Box 804522 Cincinnati, OH 45280-4522
AL, AK, AZ, AR, CA, CO, HI, ID, IA, KS, LA, MN, MS, MO, MT, NE, NV, NM, ND, OK, OR, SD, TX, UT, WA, WY	Department of the Treasury Internal Revenue Service Ogden, UT 84201-0005	Internal Revenue Service P.O. Box 37941 Hartford, CT 06176-7941
No legal residence or principal place of business in any state	Internal Revenue Service P.O. Box 409101 Ogden, UT 84409	Internal Revenue Service P.O. Box 37941 Hartford, CT 06176-7941

How to Complete Form 941 With Instructions

There are 3 primary sections of Form 941. Below, you will find a snapshot of a sample Form 941 along with instructions on how to complete it. You can download Form 941 here.

• General Info – In this section you will provide general information about your business such as business name, tax id and mailing address.
• Reporting Period – Select the quarter that you are filing the return for.
• Line 1– Enter the total number of employees who received wages, tips, or other compensation (like bonuses or commission) in the quarterly pay period
• Line 2 – Enter total wages, tips, and other compensation (like bonuses or commission) paid to employees
• Line 3 – Include federal income tax withheld from employee wages, tips, and other compensation (like bonuses or commission) for the quarter
• Line 4 – Select this checkbox if there are no wages, tips or other compensation subject to Social Security and Medicare tax.
• Lines 5 a & b – Enter the taxable Social Security wages on line 5a and taxable Social Security tips on line 5b & multiply by the Social Security tax rate of 0.124.
• Lines 5 c & d– Enter the taxable Medicare wages on line 5c and taxable Medicare tips on line 5d & multiply by the Medicare tax rate of 0.029.
• Line 5e – Add up lines 5a thru 5d, Column 2 and enter the sum on this line.
• Line 5f– Enter tax due on unreported tips, see IRS Pub 15 for more info.
• Lines 6 – 9 – Enter adjustments that apply, see IRS Pub 15 for more info.
• Line 10 – Add up lines 6-9 and enter the total on this line.
• Line 11 – Enter Small Business Payroll Tax Credit, see IRS Pub 15 for more info.
• Line 12 – Subtract Line 11 from Line 10.
• Line 13 – Enter the total payments you made for the quarter, including withheld income tax and employee and employer share of Social Security and Medicare taxes.
• Line 14 – Calculate balance due, if any.
• Line 15 – Calculate overpayment, if any.
• Part 2: In this section, you must select the type of depositor you were for the quarter (monthly or semiweekly). Refer to our table below for more info. If you were a monthly depositor, you will enter the FUTA tax liability for each month. If you were a semiweekly depositor, you must complete Schedule B, which you can download here.

If you use a payroll program like Gusto, however, then filing and paying payroll taxes can be a breeze. Gusto manages all aspects of payroll which includes completing payroll forms like form 941 for you automatically.

How to Calculate Your FICA Taxes Owed

Both employers and employees must contribute to Social Security and Medicare taxes, together called “FICA taxes.” Employers and employees share this tax obligation equally, meaning that the employer pays half of the total FICA tax burden and withholds the remaining half from their employees’ paycheck.

For Social Security, the employer and employee must each pay 6.2% of an employee’s wages up to a maximum salary of $127,200. What this means is that once an employee has earned $127,200, no additional Social Security is deducted from their paycheck for the remainder of the year. Since your tax amount must match the employee’s, you would also have no additional Social Security liability for the remainder of the year.

Unfortunately, there is no wage cap when it comes to Medicare taxes. Employees and employers must each pay 1.45% of an employee’s wages. Let’s walk through a couple of examples to show you how this works.

Social Security Tax Example

Let’s assume an employee earns $2,000 per pay period. The Social Security tax calculation would be as follows:

$2,000 X 0.062 = $124

In this example, you would deduct $124 from this employee’s gross pay for Social Security tax each pay period. Since the employer tax must equal the employee Social Security tax, your share as an employer would also be $124. Thus, the total Social Security tax payment that you would submit to the IRS for this employee (for this pay period) would be $248 ($124 employee + $124 employer share).

Medicare Tax Example

Using the same employee that earned $2000 per pay period, let’s calculate the Medicare tax:

$2000 X 0.0145 = $29

In this example, you would deduct $29 from this employee’s gross pay for Medicare tax. Since the employer tax must equal what the employee Medicare tax is, your share as an employer would be $29. Thus, the total Medicare tax payment that you would submit to the IRS for this employee (for this pay period) would be $58 ($29 employee + $29 employer share).

How to Determine Your FICA Tax Due Dates

FICA tax due dates are dependent on your “lookback period.” Depending on your total FICA tax liability during this period, you’ll either have to pay FICA taxes monthly or semiweekly. If you have less than $50,000 in tax liability during your most recent lookback period, you pay monthly, and if you had more than $50,000 you have to pay semiweekly.

The lookback period is defined as July 1 of the second preceding calendar year through June 30 of the preceding calendar year. For example, for 2018, the lookback period would be July 1, 2016, through June 30, 2017. Let’s walk through an example so that you can see how this works.

How To Determine Your Lookback Period

Let’s say today is January 1, 2018 and you need to determine when you are required to deposit your tax payments moving forward. You’ll either have to pay monthly for the previous month’s employer FICA taxes owed or semiweekly for FICA taxes owed the previous two weeks.

Here are the 3 steps to determine your lookback period:

1. Determine Your Lookback Period

For 2018, your lookback period would be July 1, 2016, through June 30, 2017.

2. Get Copies of Form 941 Filed

This should include form 941 forms filed for the lookback period (July 1, 2016 through June 30, 2017). This would include the 941 tax forms filed for the following quarters:

• Qtr 3 2016 (July 1 – Sept 30, 2016)
• Qtr 4 2016 (Oct 1 – Dec 31, 2016)
• Qtr 1 2017 (Jan 1 – Mar 31, 2017)
• Qtr 2 2017 (Apr 1 – Jun 30, 2017)

3. Add up the Tax Liability on Line 10 of Each Form 941

If your total tax liability for all four quarters is $50,000 or less, you must deposit your taxes on a monthly basis. Monthly taxes are due by the 15th day of the following month. On the other hand, if your total tax liability is more than $50,000, you must deposit your tax payments on a semiweekly basis. Semiweekly tax payment due dates are based on what day of the week your payday took place.

The exception to this is if your total taxes (on line 10) for the current quarter or the preceding quarter are less than $2,500 then you do not have to make a deposit. Instead, you can send in your payment when you file your Form 941.

Let’s now look at an example:

Lookback Period Example

Let’s say it is January 2018 and the total tax liability that you owe for the previous quarter came to $2,000. You do not have to make tax deposits for the first quarter of 2018 (Jan-Mar) as long as your taxes do not reach $100,000 within the quarter. If so, then you must follow the $100,000 next-day deposit rule.

This rule says that if you accumulate a $100,000 tax liability on any day, you become a semiweekly schedule depositor on the next day and remain so for at least the rest of the calendar year and the following calendar year. For more info, see $100,000 Next-Day Deposit section in IRS Pub 15.

If you are a new employer, then you are automatically considered a monthly depositor since your tax liability for the lookback period would be zero. Below is a summary table of each type of depositor along with the due dates for tax payments:

Types of Depositors & Due Dates for FICA Tax Payments

Monthly Depositor

Semiweekly Depositor

If you reported $50,000 or less in taxes during the lookback period, you must make monthly payments to the IRS. Payments are due by the 15th day of the following month.

If you reported more than $50,000 of taxes during the lookback period, then you must make semiweekly payments to the IRS. Depending on what your employee payday is, your tax payments will be due as follows: If your payday is on a Wednesday, Thursday or Friday then your tax payment is due on Wednesday of the following week. If your payday is on a Saturday, Sunday, Monday or Tuesday then your tax payment is due on Friday of the following week.

IMPORTANT NOTE: If you are a monthly schedule depositor and you accumulate a $100,000 tax liability on any day, you become a semiweekly schedule depositor on the next day and remain so for at least the rest of the calendar year and the following calendar year. For more info, see $100,000 Next-Day Deposit section in IRS Pub 15.

How to Make FICA Tax Payments

If you are a monthly or semiweekly depositor, then payments must be submitted electronically through the Electronic Filing Tax Payment System (EFTPS). Snail mail is not an option. The payments you submit should include income taxes withheld from all employee paychecks and both your portion and the employee’s portion of Social Security and Medicare taxes.

To use EFTPS, you will need a Federal Employer Identification Number (aka EIN or FEIN). You can apply for an EIN with the IRS here, or sign up for Gusto and they will handle it for you. To learn more about EIN numbers, you can read our article on employer identification numbers.

If you are not required to make payments during the quarter, you can mail a payment with your Form 941 or submit it through the EFTPS.

FICA Tax Penalties for Late Payments

If you don’t deposit your payments on time, you do not deposit payments when you are required to do so, or your deposit is for less than the required amount, you may have to pay a penalty. Below is a summary table taken from IRS Pub 15 of the penalties that you may be required to pay based on the number of days your payment is late.

Summary Table of Penalties and Interest for Late Deposits

Number of Days Late	Penalty
Deposits made 1-5 days late	2%
Deposits made 6-15 days late	5%
Deposits made 16 or more days late, but before 10 days from the first date of the first notice sent by the IRS requesting payment.	10%
Amounts that should have been deposited but instead were paid directly to the IRS or paid with your Form 941.	10%
Amounts still unpaid more than 10 days after the date of the first notice sent by the IRS requesting payment or the date you received the notice, demanding payment (whichever is earlier)	15%

Form 941 Penalties for Late Filings

If you don’t file Form 941 on time, you could be subject to the following penalties and interest:

Penalties

Each month that the form has not been filed, a failure-to-file (FTF) penalty of 5% of the unpaid tax due with that return will be assessed. The maximum penalty is generally 25% of the tax due.

If you have a balance due that should have been paid with your return (e.g. outstanding employer FICA payments that you need to make), there is a failure-to-pay (FTP) penalty of 0.5% per month of the amount of tax. This penalty is assessed for each month that the payment is late. The maximum amount of the penalty is also 25% of the tax due.

If both penalties apply in any month, the FTF penalty is reduced by the amount of the FTP penalty. The penalties won’t be charged if you have a reasonable cause for failing to file or pay. If you receive a penalty notice, you can provide a written explanation of why you believe reasonable cause exists.

Interest

In addition to any penalties, interest accrues from the due date of the tax on any unpaid balance. If income, Social Security, or Medicare taxes that must be withheld aren’t withheld or aren’t paid, you may be personally liable for the trust fund recovery penalty.

Keep in mind that even if you use a third party payer, such as Gusto, that doesn’t relieve you of the responsibility to ensure tax returns are filed and all taxes are paid or deposited correctly and on time. However, most payroll services will reimburse you for any interest and penalties that you may incur if they are indeed at fault for filing and paying your taxes late.

For more info on penalties and interest, check out IRS Pub 15.

State and Local Tax Obligations

Our focus has been on your tax responsibility at the Federal level. This is because Social Security and Medicare taxes are both mandated at the federal level. However, states and localities may have different income tax requirements. To learn more about your tax responsibility at the state level, consult your state tax website.

The Bottom Line

As you can see, there is a lot that goes into calculating and reporting on Social Security, Medicare, and federal income taxes for both you as an employer and your employees. While it might seem manageable to do this by hand if you’ve just got just a few employees, I don’t recommend that you do.

Instead, Gusto can handle end to end payroll, which not only includes calculating payroll checks but also automatically computing employer FICA taxes and filing Form 941. You can even file & pay your taxes electronically from within the software.

Visit Gusto