Welcome to Erwin Fountain & Jackson, Certified Public Accountants


Need to know what the payment will be on that new car you are considering purchasing? Ever wondered what your net worth is or where all of your money goes each month?

Well, you can now calculate all of this information and much more right here on our website! We are providing these calculators as a service to our friends and clients.

While the results of each calculator should not be relied on as a definitive answer or solution, they can serve as a useful guide and a starting point in your detailed budgeting and financial planning.

Lease Calculator

Choose Your Calculator


  • Loan Amortization
  • Loan Comparison
  • Missing Loan Term
  • Debt Consolidation


  • Portfolio Mix
  • Compounding Interval
  • Single Future Value
  • Periodic Future Value
  • Savings Time
  • Savings Goal
  • Lump Sum Savings
  • Retirement Savings
  • IRA Distributions
  • College Funding


  • Mortgage Qualification
  • Bi-Weekly Mortgage
  • Mortgage Refinancing
  • Payoff Goal
  • Rent vs. Buy


  • Net Worth
  • Cash Flow
  • Expense Percentage
  • Wage Conversion
  • Irregular Payments
  • Credit Card Payment
  • Debt Investment
  • Average Interest Rate
  • Real Hourly Wage
  • Lifetime Earnings
  • Generic Savings
  • Car Cost Comparison
  • Transportation Savings