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*January 15 is the due date for the fourth and final installment of 2012 estimated taxes for individuals.
*Individuals need not make the January 15 quarterly estimate for 2012 if they file their 2012 tax return and pay taxes due by January 31.
*January 31 is the deadline for employers to provide 2012 W-2s to employees.
*Payers must furnish payees with Form 1099s by January 31. The deadline for providing Form 1099-B to customers is February 15.
*January 31 is the deadline for employers to file annual federal unemployment tax returns.
*The annual limit on tax-free gifts for 2013 increases to $14,000 per donee ($28,000 if your spouse joins in the gift).
*The IRA contribution limit for 2013 increases to $5,500 ($6,500 for those 50 and older).
*The amount you can put in your 401(k) increases to $17,500 this year ($23,000 for those 50 and older).
*The maximum salary deferral for SIMPLEs increases this year to $12,000 ($14,500 for those 50 and older).
*The threshold for unearned income a child can have in 2013 without having the kiddie tax apply increases to $2,000.