Zoho Sheet DDB: Declining Balances, Factors and Year-by-Year Checks
Use Zoho Sheet DDB with its default factor, compare three depreciation schedules and reconcile annual charges against independently calculated opening and closing values.
Verification status: See the evidence and test scope described in this guide. How formula examples are checked
Quick answer: =DDB(25600;1000;4;1) has an independently expected first-year depreciation of 12800 under the double declining-balance model. The omitted factor is documented as 2.
Availability and version history
- Introduced: The original introduction release and date are not established by the checked sources.
- Availability: Currently documented in Zoho Sheet’s rolling web-service help; no numbered release or retirement endpoint is established.
- Scope: English-language web-service documentation. Exact mobile and offline-client parity is not established here.
- Checked: October 14, 2026, against the official DDB reference. Documentation and independent declining-balance calculations; no native Zoho Sheet test.
Syntax and the factor’s role
=DDB(original_cost; salvage; lifetime; year; [factor])
Supply the initial cost, estimated salvage value, useful lifetime in years and year number. The optional factor sets the depreciation rate and defaults to 2. It is a multiplier, so the usual double-declining input is 2, not 2%.
For an ordinary full-year declining-balance model, the rate is factor/lifetime and each year’s charge is opening book value times that rate. With factor 2 and lifetime 4, this is 50% of each year’s opening value. The independently checked examples stay above salvage throughout; they do not depend on a particular native salvage-cap or automatic-switch boundary implementation, which the short Zoho entry does not explain.
Use year 1 for the first annual charge, not a calendar year. The formulas below use Zoho’s semicolon separators and consistent annual units.
Practice sheet: omitted factor versus explicit factor 2
Create DoubleBalance. Put Original cost, Salvage value, Lifetime in years and Factor in A2:A5. Enter 25600,1000,4,2 in B2:B5 respectively.
In A8:F8 put Year, Opening value, Default DDB, Rate check, Closing value and Explicit factor. Enter 1,2,3,4 in A9:A12. Put =$B$2 in B9. Enter:
- C9:
=DDB($B$2;$B$3;$B$4;A9) - D9:
=B9*$B$5/$B$4 - E9:
=B9-C9 - F9:
=DDB($B$2;$B$3;$B$4;A9;$B$5)
Fill C9:F9 through row 12. Put =E9 in B10 and fill to B12.
| Year | Opening value | Expected C, D and F | Closing value |
|---|---|---|---|
| 1 | 25600 | 12800 | 12800 |
| 2 | 12800 | 6400 | 6400 |
| 3 | 6400 | 3200 | 3200 |
| 4 | 3200 | 1600 | 1600 |
C uses the documented default and F supplies 2 explicitly. D reconstructs the rate calculation. Keep B5 at 2 on this sheet: changing it changes D and F, but it cannot change the omitted factor in C. Use the separate factor comparison below to explore alternatives without mixing those scenarios.
Annual charge, cumulative depreciation and remaining value
Enter =SUM(C9:C12) in H9; the expected total is 24000. Enter =$B$2-H9 in H10; the remaining value is 1600, agreeing with E12. Enter =H10-$B$3 in H11; the difference above the estimated salvage is 600.
That remaining 600 is a property of this unadjusted declining-balance reconstruction. A declining percentage does not algebraically guarantee that book value reaches the chosen salvage after exactly four years. Do not silently add the 600 to the last formula result and then describe it as the original DDB output.
These are depreciation-model checks rather than rules for statutory reporting. An actual asset policy can require other treatments, dates and rounding conventions that are not inputs in this worksheet.
Advanced: compare factors 1, 1.5 and 2
Create FactorComparison. Put Year in A1 and numeric factors 1,1.5,2 in B1:D1. Enter 1,2,3,4 in A2:A5. In B2 enter:
=DDB(25600;1000;4;$A2;B$1)
Fill across B2:D2, then fill B2:D2 down through row 5. The year column is anchored with $A, while row $1 holds the selected factor.
| Year | Factor 1 | Factor 1.5 | Factor 2 |
|---|---|---|---|
| 1 | 6400 | 9600 | 12800 |
| 2 | 4800 | 6000 | 6400 |
| 3 | 3600 | 3750 | 3200 |
| 4 | 2700 | 2343.75 | 1600 |
Put Total depreciation in A7 and =SUM(B2:B5) in B7; fill through D7. Put Closing value in A8 and =25600-B7 in B8; fill through D8.
| Factor | Total depreciation | Closing value |
|---|---|---|
| 1 | 17500 | 8100 |
| 1.5 | 21693.75 | 3906.25 |
| 2 | 24000 | 1600 |
Every closing value remains above 1000, so these targets avoid salvage-floor cases. A larger factor allocates more depreciation early; it need not produce the largest individual charge in every later year. In year 3, factor 1.5 gives 3750, which exceeds factor 2’s 3200 because more book value remains.
Factor 1 is still a declining-balance calculation
On FactorComparison, enter =SLN(25600;1000;4) in F2. The straight-line amount is 6150. In F3 enter =B2-F2; expect 250. In F4 enter =B3-F2; expect −1350.
Factor 1 uses 25% of a changing opening balance in this model. It does not produce the constant 6150 straight-line charge. SLN and DDB with factor 1 therefore answer different calculation questions.
Errors and model limits
The official DDB entry specifically lists #NUM! for year less than 1. It does not enumerate every invalid factor, fractional year, beyond-lifetime request or salvage boundary. Those cases are not assigned borrowed Excel diagnostics here.
DB has a fifth argument for first-year months, whereas DDB’s fifth argument is a rate factor. The official VDB reference provides an explicit control for switching to straight-line depreciation; DDB’s signature has no such control. Keep the function choice and optional argument meaning clear when translating a worksheet.
Retain full stored values in the schedule and apply display formatting separately. Rounding each year’s charge inside a formula is a different calculation policy. The source’s embedded output examples do not expose all their input cells in the article text; this guide uses complete original datasets rather than guessing those hidden inputs.