Taxes are poised to go up on local businesses in the city of Gainesville by $10 to $50 a year, and city officials are blaming the Illegal Immigration Reform and Enforcement Act of 2011 for the potential increase. Gainesville City Council will vote on the proposed tax increase for the city’s annual occupation tax at Tuesday’s council meeting. The increase would amount to an average of $20 for each business, according to city estimates.