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The Daily Insight

Can basis period more than 12 months?

Author

William Smith

Updated on April 01, 2026

Generally, the basis period cannot exceed 12 months, so the profits or losses must be apportioned and attributed to two different YAs. The company should directly identify the income earned and expenses incurred for each of the two YAs, based on the actual dates the income was earned and the expenses were incurred.

Does the IRS have a 15 day rule?

When Your Tax Year is Less Than 15 Days (15-Day Rule) Since a corporation that meets the 15-day rule is not required to file a tax return, this time period is not considered the first tax year. The following tax year will be considered the first tax year and will not be subject to the minimum franchise tax.

How much do you have to pay for corporation tax?

Corporation tax is a tax on the profits made by your business over the financial year. It must be paid nine months and one day after your business’s accounting period ends. Usually, this is March 31, which means you’ll need to pay corporation tax on January 1. Currently, the corporation tax rate is set at 19%.

What is abnormal basis period?

An abnormal period is a menstrual cycle that differs significantly from the woman’s typical cycle, or from the normal range of menstrual cycles. This can include skipped periods, irregular cycles and extremely heavy bleeding (called menorrhagia).

What is the penalty for late payment of corporation tax?

For late payments, you will only be charged interest at the rate of 3%, on the outstanding amounts due. However, if you are a company who pays your tax in monthly instalments rather than the bulk at once, and you deliberately pay the incorrect amount of your instalment, or pay it late, you may have penalties.

What is the basis period?

A basis period is the time period for which a sole trader or partnership pays tax each year. Usually your business’s basis period will be the same as its accounting year. If you change your business’s accounting year end, or when your business stops trading, then you will also have to check the basis period rules.

What is the current year basis?

An unincorporated business pays tax on what is known as the `current year basis’. This means that, as a general rule, the profits for a tax year are taxed by reference to the profits for the 12 months to the accounting date that ends in that tax year.