Free civil tool · Metric · No signup
Retention Calculator
Retention withheld this claim, your net claim, and the running total held — with cap handling.
Example inputs are editable. Use your project values. Enter 0 where no optional allowance is intended; blank fields pause the calculation.
Your inputs
Your results
- Retention withheld this claim
- $4,250
- Net claim (excl. GST)
- $80,750
- Total retention held after this claim
- $16,250
These free results do not automatically save or sync to a Fieldlink job.
How it works
- Retention = claim × rate %
- Capped: retention ≤ cap − retention already held
- Net claim = claim − retention
Worked example
$85,000 claim @ 5 % = $4,250 withheld → net $80,750 Total held = $12,000 + $4,250 = $16,250
Assumptions and practical notes
Retention terms (rate, sliding scales, caps, release triggers and trust requirements) come from your contract and the Construction Contracts Act — check them, this is arithmetic only.
Working on the full job?
Keep commercial records alongside the job costs and billing review.