SYD Function in Excel: Sum-of-Years’ Digits Depreciation

⏱ 1 min readUpdated 28 September 2026

FinancialLevel: ExpertAvailable in: Excel 2007+

In this article
  1. Syntax
  2. Examples
  3. Example 1
  4. Related functions

SYD is another accelerated method, gentler than DDB. For a 5-year life the fractions are 5/15, 4/15, 3/15 and so on.

Syntax

=SYD(cost, salvage, life, per)
Argument What it means
per Year number.

Examples

Example 1

=SYD(90000, 10000, 5, 1)

Year 1: 80,000 × 5/15 = ₹26,667.

DDB · SLN

📚 Part of the free Excel course: Beginner → Expert · Try it in the Formula Lab or ask the AI Helper.

✨ Ask AI about this article

Stuck on a step? Ask a question and the AI answers using this article.

Free · AI can be wrong