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Financial function
SYD
Returns sum-of-years-digits depreciation for a period.
Rarely usedDifficulty 1350 · AdvancedUsage rank #333 of 520
When to use it
Sum-of-years-digits depreciation: larger charges early, decreasing by a constant amount each year.
The shape of it
- Syntax
=SYD(cost, salvage, life, per)
Worked examples
First year
=SYD(30000,7500,10,1) → 4,090.91
Year one: 22,500 × 10/55.
Last year
=SYD(30000,7500,10,10) → 409.09
Year ten: 22,500 × 1/55.
Whole schedule
=SUM(SYD(30000,7500,10,SEQUENCE(10))) → 22,500
The schedule adds to cost minus salvage.
Worth knowing
- Always sums exactly to cost minus salvage, unlike DDB.
- Fraction for year k is (life-k+1)/(life(life+1)/2).
- Use SEQUENCE to spill the full schedule.
Where it goes wrong
- #NUM! for a period beyond life.
- Rarely allowed for tax; common in management accounts.
Related
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