WASHINGTON – The Internal Revenue Service today announced that interest rates will remain the same for the calendar quarter beginning April 1, 2015. The rates will be:

  • three (3) percent for overpayments [two (2) percent in the case of a corporation];
  • one-half (0.5) percent for the portion of a corporate overpayment exceeding $10,000
  • three (3) percent for underpayments; and
  • five (5) percent for large corporate underpayments.

Under the Internal Revenue Code, the rate of interest is determined on a quarterly basis. For taxpayers other than corporations, the overpayment and underpayment rate is the federal short-term rate plus 3 percentage points.

Generally, in the case of a corporation, the underpayment rate is the federal short-term rate plus 3 percentage points and the overpayment rate is the federal short-term rate plus 2 percentage points. The rate for large corporate underpayments is the federal short-term rate plus 5 percentage points. The rate on the portion of a corporate overpayment of tax exceeding $10,000 for a taxable period is the federal short-term rate plus one-half (0.5) of a percentage point.

The interest rates announced today are computed from the federal short-term rate determined during January 2015 to take effect Feb. 1, 2015, based on daily compounding.

Revenue Ruling 2015-05 announcing the rates of interest is attached and will appear in Internal Revenue Bulletin 2015-13, dated March 30, 2015.

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Upcoming Tax Dates

August 1 — Form 720 taxes
File Form 720 for the second quarter of 2016.

August 1 — Wagering tax
File Form 730 and pay the tax on wagers accepted during June.

August 1 — Social security, Medicare, and withheld income tax
File Form 941 for the second quarter of 2016. Deposit or pay any undeposited tax under the accuracy of deposit rules.

August 1 — Certain small employers
Deposit any undeposited tax if your tax liability is $2,500 or more for 2016 but less than $2,500 for the second quarter.

August 1 — Federal unemployment tax
Deposit the tax owed through June if more than $500.

August 1 — All employers
If you maintain an employee benefit plan, such as a pension, profitsharing, or stock bonus plan, file Form 5500 or 5500EZ for calendar year 2015. If you use a fiscal year as your plan year, file the form by the last day of the seventh month after the plan year ends.

August 10 — Employees who work for tips
If you received $20 or more in tips during July, report them to your employer Details

August 10 — Social security, Medicare, and withheld income tax
File Form 941 for the second quarter of 2017. This due date applies only if you deposited the tax for the quarter timely, properly, and in full.

August 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 July.

August 12 — Regular method taxes
Deposit the tax for the last 16 days of July.

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

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

August 25 — 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 July.

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

August 31 — Wagering tax
File Form 730 and pay the tax on wagers accepted during July.

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