Free tool
Retainer rollover and overage calculator
Enter your retainer terms and the hours used for up to 6 months. See what rolls over, what expires and what to bill, month by month. Free, with no account.
Over 3 months
8.5h overage = $1,700 to bill · 0h expired
| Month | Included | Rolled in | Available | Used | Rolls out | Expired | Overage |
|---|---|---|---|---|---|---|---|
| Month 1 | 20h | - | 20h | 14h | 6h | - | - |
| Month 2 | 20h | 6h | 26h | 23h | 3h | - | - |
| Month 3 | 20h | 3h | 23h | 31.5h | - | - | 8.5h = $1,700 |
Doing this every month for every client?
HoursLeft keeps this ledger for you from your Harvest, Toggl or Clockify CSV, and gives each client a statement link.
Save this as a client (free)How the rules work: unused hours roll over (up to the cap, if there is one) and are used oldest first. Rolled-over hours that pass their expiry are dropped at month end. Hours beyond what's available are either billed as overage or carried into next month. Not sure which rule you have? Read the rollover guide.
Results are arithmetic on the numbers you enter, not accounting advice. Nothing you type is stored.