Closeout Retainage Burn Rate Calculator

Retainage is released against punch list completion — burn rate matters.

Retainage held

Punch list cost estimate

Closeout duration months

Monthly release %

Retainage balance at closeout

$50,000

Monthly release amount

$500,000

Punch coverage ratio

5.56

How the math works

Monthly release = retainage × release %. Closeout balance = held − (release × months) − punch list.

$2.5M × 20% = $500k/mo × 4 = $2M + $450k punch = $2.45M used. $50k balance at closeout.

How to Use

Enter retainage held.
Enter punch list cost estimate.
Enter closeout duration months.
Enter monthly release rate %.
Read retainage balance at closeout.

Frequently Asked Questions

How much retainage is standard?

Private construction: 5-10% withheld on each pay application. Public construction: 5% (often reduces to 2.5% after 50% completion). Institutional large projects: starts 10%, drops to 5% at 50% completion, drops to 2-3% at substantial completion. Released on final completion (actual C of O) and lien waivers receipt. Industry practice since pre-WWII; aligns GC to completion.

How is retainage released?

Final payment after: (1) substantial completion achieved, (2) punch list complete, (3) final inspection passed, (4) C of O issued, (5) final lien waivers from all subs, (6) as-built drawings delivered, (7) O&M manuals delivered. Each jurisdiction and each contract may have nuances. Most disputes arise between items 2 and 6. GC typically can't pay subs fully until retainage releases from owner — creating sub pressure during closeout.

Can retainage be released early?

Partial early release (3% of original 10%) is common around 50% completion. Full release before C of O is rare — owner gives up primary leverage. Sometimes GC negotiates 'retainage reduction' by posting bond or letter of credit (LoC) for remaining retainage value. This releases cash to GC but transfers risk to surety/bank. Cost of LoC: 100-250 bps, often cheaper than tied-up cash for GCs.

What if punch list items cost more than retainage?

Owner draws on retainage for uncompleted items at project end. If retainage insufficient, owner bills GC or pursues bond/surety claim. GC obligations under performance bond typically cover this. Best practice: owner maintains own list of observed items (separate from GC list), photographs each, assigns completion cost estimate — if GC disputes, have documentation. Prevents endgame disputes.