State Government Tax Collections

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Data Quality

Nonsampling Error: Despite efforts made in all phases of collection, processing, and tabulation to minimize errors, the survey is subject to non-sampling errors such as the inability to obtain data for every variable for all units, inaccuracies in classification, mistakes in keying and coding, and coverage errors.

Overall Unit Response Rate: The overall unit response rate is calculated as follows:

Overall Unit Response Rate=	Number of units who reported all key variables for at least one function	X 100
	Number of units in the eligible universe

Total Quantity Reponse Rate: The total quantity response rate is calculated as follows:

TQRR for tax category=	Sum of response data for tax category + Sum of equivalent quality-to-reported tax category	X 100
	Sum of all data for tax category

Tax codes with their corresponding description and TQRR are available in the Annual State Tax Collection Survey Methodology.