The Taxpayer Advocate Service has developed several tools for individuals and employers to assist in estimating their ACA related credits and payments. Because these tools provide only an estimate, you should not rely upon them as an accurate calculation of the information you will report on your tax return. You should use these estimators only as a guide to assist you in making decisions regarding your tax situation.

The Premium Tax Credit Change Estimator can help you estimate how your premium tax credit will change if your income or family size changes during the year. This estimator tool does not report changes in circumstances to your Marketplace. To report changes and to adjust the amount of your advance payments of the premium tax credit you must contact your Health Insurance Marketplace. Be sure to report all changes directly to that Marketplace because they can affect both your coverage and your final credit when you file your federal tax return.

The Individual Shared Responsibility Payment Estimator can help you estimate the amount you may have to pay if you did not have minimum essential coverage during the year. This tool can only provide an estimate of your individual shared responsibility payment. To determine the payment when you file your tax return, use the Shared Responsibility Payment Worksheet in the instructions for Form 8965.

The Small Business Health Care Tax Credit Estimator can help you determine if you might be eligible for the Small Business Health Care Tax Credit and how much credit you might receive. This tool provides you with an estimate for tax year 2014 and beyond. However, some figures used in determining the credit are indexed for inflation. Because of this, for future years, the estimator cannot provide a detailed estimate.

By clicking on these links, you will enter the Taxpayer Advocate Service website. The Taxpayer Advocate Service created, operates, and maintains this website and is solely responsible for the content.

The calculations provided by the TAS Estimator Tools are only estimates and may not match the actual credits or payments you will report on your tax return. IRS cannot validate the accuracy of the estimator calculations for your specific circumstance.

TAS is an independent organization within the IRS whose job is to ensure every taxpayer is treated fairly and that taxpayers know and understand their rights.

September 2017
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Upcoming Tax Dates

September 5 — Everyone
Federal Holiday (Labor Day) Details

September 10 — Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of August.

September 11 — Employees who work for tips
If you received $20 or more in tips during August, report them to your employer Details

September 14 — Regular method taxes
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 15 — Individuals
Make a payment of your 2017 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the third installment Details

September 15 — S Corporations
File a 2016 calendar year income tax return (Form 1120S) and pay any tax due. This due date applies only if you timely requested an automatic 6-month extension Details

September 15 — Partnerships
File a 2016 calendar year return (Form 1065). This due date applies only if you were given an additional 5-month extension Details

September 15 — Corporations
Deposit the third installment of estimated income tax for 2016 Details

September 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in August.

September 15 — Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in August.

September 27 — Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 29 — Regular method taxes
Deposit the tax for the first 15 days of September.

September 29 — Regular method taxes (special September deposit rule)
Deposit the tax for the period beginning September 16 and ending September 26.

September 29 — Communications and air transportation taxes under the alternative method (special September deposit rule).
Deposit the tax included in amounts billed or tickets sold during the period beginning September 1 and ending September 11.

September 30 — Wagering tax
File Form 730 and pay the tax on wagers accepted during August.

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