CONNECTICUT STATUTES AND CODES
               		Sec. 12-638d. Examination of records. Deficiency assessment. Penalty. Limitation of assessment period.
               		
               		
               	 	
               	 	               	 	
               	 	
               	 	
               	 		
      Sec. 12-638d. Examination of records. Deficiency assessment. Penalty. Limitation of assessment period. (a) The commissioner may examine the records of any 
entity subject to a tax imposed under this chapter, as he may deem necessary. If he shall 
determine therefrom that there is a deficiency with respect to the payment of any such 
tax due under the provisions of this chapter, he shall assess or reassess the deficiency 
in tax, give notice of such deficiency assessment or reassessment to the taxpayer and 
make demand upon him for payment. Such amount shall bear interest at the rate of one 
per cent per month or fraction thereof from the date when the original tax was due and 
payable. When it appears that any part of the deficiency for which a deficiency assessment is made is due to negligence or intentional disregard of the provisions of this 
chapter or regulations promulgated thereunder, there shall be imposed a penalty equal 
to ten per cent of the amount of such deficiency assessment, or fifty dollars, whichever 
is greater. When it appears that any part of the deficiency for which a deficiency assessment is made is due to fraud or intent to evade the provisions of this chapter or regulations 
promulgated thereunder, there shall be imposed a penalty equal to twenty-five per cent 
of the amount of such deficiency assessment. No taxpayer shall be subject to more 
than one penalty under this subsection in relation to the same tax period. Any decision 
rendered by any federal court holding that a taxpayer has filed a fraudulent return with 
the Director of Internal Revenue shall subject the taxpayer to the penalty imposed by 
this section without the necessity of further proof thereof, except when it can be shown 
that the return to the state so differed from the return to the federal government as to 
afford a reasonable presumption that the attempt to defraud did not extend to the return 
filed with the state. Within thirty days of the mailing of such notice, the taxpayer shall 
pay to the commissioner, in cash, or by check, draft or money order drawn to the order 
of the Commissioner of Revenue Services, any additional amount of tax, penalty and 
interest shown to be due.
      (b) Except in the case of a wilfully false or fraudulent return with intent to evade 
the tax, no assessment of additional tax shall be made after the expiration of more than 
three years from the date of the filing of a return or from the original due date of a return, 
whichever is later. If no return has been filed as provided under the provisions of this 
chapter, the commissioner may make such return at any time thereafter, according to 
the best information obtainable and according to the form prescribed. To the tax imposed 
upon the basis of such return, there shall be added an amount equal to ten per cent of 
such tax, or fifty dollars, whichever is greater. The tax shall bear interest at the rate of 
one per cent per month or fraction thereof from the due date of such tax to the date of 
payment. No person shall be subject to a penalty under both this subsection and section 
12-638c. If, before the expiration of the period prescribed herein for the assessment of 
an additional tax, a taxpayer has consented in writing that such period may be extended, 
the amount of such additional tax due may be determined at any time within such extended period. The period so extended may be further extended by subsequent consents 
in writing before the expiration of the extended period.
      (P.A. 89-251, S. 42, 203; May Sp. Sess. P.A. 94-4, S. 65, 85; P.A. 95-26, S. 33, 52; 95-160, S. 64, 69.)
      History: P.A. 89-251, S. 42 effective July 1, 1989, and applicable to sales or transfers of real property occurring on or 
after that date; May Sp. Sess. P.A. 94-4 in Subsec. (b) reduced interest rate from 1.25% to 1% provided that interest may 
only be applied on the tax rather than on the tax and any penalty, effective July 1, 1995, and applicable to taxes due and 
owing on or after said date; P.A. 95-26 amended Subsec. (a) to lower interest rate from 1.25% to 1%, effective July 1, 
1995, and applicable to taxes due and owing on or after July 1, 1995, whether or not those taxes first became due before 
said date; P.A. 95-160 revised effective date of May Sp. Sess. P.A. 94-4 but without affecting this section.