Fran Mallory is married, claims five withholding allowances, and earns $3,500 (gross) per month. In addition to Federal income tax (FIT), social security, and Medicare withholding, Fran pays 2.1% state income tax, and ½% for state disability insurance (both based on her gross income), plus an additional $43.11 for life insurance and $72.30 to the credit union. As payroll manager for Fran’s company, calculate her net take-home pay per month.

To calculate Fran Mallory's net take-home pay per month, we need to consider the various deductions from her gross income.

Step 1: Determine Fran's gross income per month

Fran earns $3,500 gross income per month.

Step 2: Calculate Federal Income Tax (FIT)

To determine the Federal Income Tax (FIT), we need to know the tax bracket in which Fran falls. Since that information is not given in the question, I am unable to calculate the exact amount. Fran's payroll manager should have access to the tax brackets and can calculate the FIT accordingly.

Step 3: Calculate Social Security and Medicare withholding

Social Security: The Social Security withholding rate is 6.2% of Fran's gross income. So, 6.2% of $3,500 is $217.

Medicare: The Medicare withholding rate is 1.45% of Fran's gross income. So, 1.45% of $3,500 is $50.75.

Step 4: Calculate state income tax and disability insurance

State Income Tax: Fran pays 2.1% of her gross income for state income tax. So, 2.1% of $3,500 is $73.50.

State Disability Insurance: Fran pays 0.5% of her gross income for disability insurance. So, 0.5% of $3,500 is $17.50.

Step 5: Calculate additional deductions

Life Insurance: Fran pays an additional $43.11 for life insurance.

Credit Union: Fran pays an additional $72.30 to the credit union.

Step 6: Calculate net take-home pay

To calculate Fran's net take-home pay, subtract all the deductions from her gross income:

Gross income: $3,500

Deductions:
- Federal Income Tax (FIT): N/A (unknown)
- Social Security: $217
- Medicare: $50.75
- State Income Tax: $73.50
- State Disability Insurance: $17.50
- Life Insurance: $43.11
- Credit Union: $72.30

Net take-home pay:
$3,500 - $217 - $50.75 - $73.50 - $17.50 - $43.11 - $72.30 = net take-home pay

I apologize for not being able to provide the exact net take-home pay amount as it depends on the unknown Federal Income Tax (FIT) amount. Fran's payroll manager should have access to the necessary tax information and can calculate her net take-home pay accurately.