This is the 3195th most frequent Russian word.
налогового
"Tax" or "tax-related."
In this sentence, 'налогового' is used as an adjective describing 'законодательства' (legislation), indicating that the legislation pertains to taxes.
Налогового законодательства следует придерживаться.
Tax legislation should be followed.
Here, 'налогового' modifies 'учета' (accounting), signifying that the accounting is related to taxes.
Вопрос налогового учета обязан решаться своевременно.
The issue of tax accounting must be resolved promptly.
In this case, 'налогового' describes 'администрирования' (administration), demonstrating that the administration is tax-related.