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Taxes (Tables)
9 Months Ended
Apr. 30, 2023
Taxes [Abstract]  
Schedule of deferred tax assets
    April 30,
2023
    July 31,
2022
 
    (unaudited)        
Deferred tax assets:            
Allowance for doubtful account   $
-
    $ 105,059  
Net operating loss carry forwards     642,107       1,563,354  
Deferred tax assets before valuation allowance     642,107       1,668,413  
Less: valuation allowance     (642,107 )     (1,668,413 )
Net deferred tax assets   $
-
    $
-