FREE SITE TOOLS
Retention calculator
Calculate retention on amounts excluding or including tax and net payable in DZD using your contract rate.
Free · No account · Instant result
Inputs
The retention rate is an editable example: use your contract’s rate.
Indicative calculation from your inputs. Check contract terms and applicable rules before use.
Estimate
DZD 1,130,500.00
- Amount excl. tax
- DZD 1,000,000.00
- VAT
- DZD 190,000.00
- Retention
- DZD 59,500.00
- Stamp duty
- DZD 0.00
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Calculation reference
This tool does not mandate a 5% rate: it is editable.
Worked example
Excl. tax 1,000,000 DZD; VAT 19%; retention 5% on gross: 59,500 DZD retention and 1,130,500 DZD net.
Things to check
Confirm the tax base and release terms against your contract.
Content reviewed on 04/10/2026
METHOD
An estimate you can verify
Choose the base and rate specified in your contract. Amounts are rounded to cents.
FAQ
The retention rate is an editable example: use your contract’s rate.
This tool does not mandate a 5% rate: it is editable.
Things to check
Confirm the tax base and release terms against your contract.