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Financial Class

The Financial module contains procedures used to perform financial operations.

Namespace:  Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public sealed class Financial

For more detailed information, see the Visual Basic topic Financial Module (Visual Basic).

This module supports the Visual Basic run-time library members that perform financial calculations such as depreciation, present and future values, interest rates, rates of return, and payments.

This example uses the Rate function to calculate the interest rate of a loan, given the total number of payments (TotPmts), the amount of the loan payment (Payment), the present value or principal of the loan (PVal), the future value of the loan (FVal), a number that indicates whether the payment is due at the beginning or end of the payment period (PayType), and an approximation of the expected interest rate (Guess).

Sub TestRate()
    Dim PVal, Payment, TotPmts, APR As Double 
    Dim PayType As DueDate

    ' Define percentage format. 
    Dim Fmt As String = "##0.00" 
    Dim Response As MsgBoxResult
    ' Usually 0 for a loan. 
    Dim FVal As Double = 0
    ' Guess of 10 percent. 
    Dim Guess As Double = 0.1
    PVal = CDbl(InputBox("How much did you borrow?"))
    Payment = CDbl(InputBox("What's your monthly payment?"))
    TotPmts = CDbl(InputBox("How many monthly payments do you have to make?"))
    Response = MsgBox("Do you make payments at the end of the month?", MsgBoxStyle.YesNo)
    If Response = MsgBoxResult.No Then
        PayType = DueDate.BegOfPeriod
        PayType = DueDate.EndOfPeriod
    End If
    APR = (Rate(TotPmts, -Payment, PVal, FVal, PayType, Guess) * 12) * 100

    MsgBox("Your interest rate is " & Format(CInt(APR), Fmt) & " percent.")
End Sub


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0