On October 11, 2014, Roland mailed his Form 1040, U.S. Individual Income Tax Return, for the 2013 taxable year to the IRS. The USPS affixed an October 13, 2014 postmark on the envelope containing Roland's 2013 Form 1040. The IRS received Roland's 2013 Form 1040 on October 17, 2014. On his Form 1040 for the 2013 taxable year Roland reported the following items:
Wages $90,000
Dividends $ 4,000
Interest $ 1,000
Schedule A expenses ($50,000)
Fees from consulting business $ 25,000
Expenses from consulting business ($28,000)
The IRS commenced an audit of Rolands 2013 Form 1040. Because Roland overstated his claimed Schedule A deductions by only 15 percent, the RA assigned to the case determined that Roland did not substantially overstate his claimed Schedule A deductions. Furthermore, the RA tentatively determined that Roland did not substantially overstate his claimed consulting business expenses. On his 2013 Form 1040, Roland forgot to include the $40,000 of gross income he received from XYZ during 2013. There was no fraud on Roland's part. He does not recall receiving a Form 1099 from XYZ and he did not make any disclosures with respect to the unreported income on his 2013 Form 1040.
Roland and the IRS executed a Form 872, Consent to Extend the Time to Assess Tax, in which Roland agreed to extend the statute of limitations on the assessment of his 2013 income tax liability to October 8, 2018. On August 7, 2020, the IRS issued a SND (for the 2013 taxable year) to Roland's last known address in Austin, Texas. Roland did not file a Tax Court Petition in response to the SND. Question: when did the statute of limitations on the assessment of a deficiency in Rolands 2013 income tax liability expire?
| a. | October 8, 2018. |
| b. | October 13, 2020. |
| c. | March 16, 2021. |
| d. | March 12, 2021. |