# SYD Function

This page is specific to the Visual Basic for Applications (VBA) Language Reference for Office 2010.

Returns a Double specifying the sum-of-years' digits depreciation of an asset for a specified period.

Syntax

SYD(cost, salvage, life, period)

The SYD function has these named arguments:

Part

Description

cost

Required. Double specifying initial cost of the asset.

salvage

Required. Double specifying value of the asset at the end of its useful life.

life

Required. Double specifying length of the useful life of the asset.

period

Required. Double specifying period for which asset depreciation is calculated.

Remarks

The life and periodarguments must be expressed in the same units. For example, if life is given in months, period must also be given in months. All arguments must be positive numbers.

## Example

This example uses the SYD function to return the depreciation of an asset for a specified period given the asset's initial cost (InitCost), the salvage value at the end of the asset's useful life (SalvageVal), and the total life of the asset in years (LifeTime). The period in years for which the depreciation is calculated is PDepr.

``````Dim Fmt, InitCost, SalvageVal, MonthLife, LifeTime, DepYear, PDepr
Const YEARMONTHS = 12    ' Number of months in a year.
Fmt = "###,##0.00"    ' Define money format.
InitCost = InputBox("What's the initial cost of the asset?")
SalvageVal = InputBox("What's the asset's value at the end of its life?")
MonthLife = InputBox("What's the asset's useful life in months?")
Do While MonthLife < YEARMONTHS    ' Ensure period is >= 1 year.
MsgBox "Asset life must be a year or more."
MonthLife = InputBox("What's the asset's useful life in months?")
Loop
LifeTime = MonthLife / YEARMONTHS    ' Convert months to years.
If LifeTime <> Int(MonthLife / YEARMONTHS) Then