Updating an equipment-rental forecast when work slips a month

By RentalSpend · October 13, 2026

When planned work slips, move the rental forecast to the actual on-rent period, not the original plan. Recheck the contract, off-rent timing, and all related charges so the month-end forecast stays aligned with what will really bill.

When planned work slips into the next month, update the forecast by moving the expected on-rent days and related charges out of the current month and into the new month based on the actual rental period in the contract, not the original work plan. Reforecast the full charge set tied to that period, including base rent, delivery and pickup, fuel, environmental or transportation surcharges, taxes, and any other fees your agreement says apply; if the equipment is still out at month-end, keep accruing it through month-end until the off-rent date is confirmed.^[1][2][3][4]

Checks to make before you change the forecast

• Check the contract or rate sheet for how the rental period starts and ends, because some suppliers bill from delivery or yard departure until return or pickup after off-rent notice.
• Check whether the equipment is still on rent at month-end, since open rentals can cross reporting periods and should stay in the forecast until the off-rent date is confirmed.
• Check every charge tied to the rental period, not just the base rate: delivery, pickup, fuel, environmental services, transportation surcharge, cleaning, repair, damage waiver, taxes, and any other contract-based fees.
• Check whether the supplier requires a formal off-rent call, a pickup confirmation, or both before charges stop.
• Check whether the planned work slip changed the rate structure, such as daily versus weekly versus monthly pricing, overtime, or minimum billing rules.
• Check your internal coding and approval details so the updated forecast matches the PO, receipt or acceptance record, project code, and month-end accounting policy.

Sources: ^{[1][2][3][4][5][6]}

If something does not match

If the forecast, contract, and invoice do not line up, first determine whether the issue is timing or billing. A timing issue usually means the equipment stayed out longer than planned or the off-rent date moved; in that case, shift the forecast into the later month and accrue through month-end. A billing issue usually means the invoice includes a charge that is not supported by the agreement, pickup record, or acceptance evidence; in that case, hold the charge for review and ask the supplier to explain the charge code, dates, and contract basis before approval.^{[1][2][7][5][6][8]}

1. Move the expected on-rent days from the old month to the new month using the updated schedule or confirmed off-rent date.
2. Add every likely related charge to the new month, including any delivery, pickup, or surcharge amounts that your agreement allows.
3. If the equipment remains out at month-end, record the unbilled amount through month-end so AP and project teams are looking at the same current end date.
4. When the invoice arrives, match it to the contract, PO, receipt or acceptance, and off-rent confirmation before closing the period.
5. If the invoice differs from the forecast, separate the difference into timing, rate, quantity, or fee-category issues and resolve each one on its own.

Sources: ^{[1][2][3][4][5][6]}

What to do next

Keep one current forecast by equipment and by month, and update it whenever the work schedule changes, the off-rent date moves, or the supplier confirms pickup. That makes it easier to compare the forecast with the contract and invoice, spot open rentals that need accruals, and avoid closing the month on an outdated end date. Then document the final off-rent date, the charges expected for that period, and any open questions so the next month starts with the same version of the truth.^{[1][2][3][4][5][6]}

What date should I use when work slips: the original plan date or the confirmed off-rent date? Use the confirmed off-rent date or other contract-defined rental end date. The original plan is useful for budget tracking, but the forecast should follow the actual rental period.^{[1][2][7][3][4]}

Should I keep forecasting an item after month-end if it has not been picked up yet? Yes. If the equipment is still out, continue the forecast and accrual through month-end until the off-rent date and pickup status are confirmed.^[1][7][3][4]

Do I forecast only base rent or the full bill? Forecast the full likely bill. Many agreements treat delivery, pickup, fuel, environmental services, transportation, taxes, and other fees separately from base rent.^[1][2]

What records should I use to update the forecast? Start with the rental agreement or rate sheet, then check the off-rent confirmation, pickup record, invoice, and your receipt or acceptance documentation.^{[1][2][5][6][8]}

If the invoice is higher than forecast, should I assume it is wrong? Not immediately. First compare the actual rental period, rate table, and added fees against the contract. Some higher invoices are timing changes, while others are unsupported charges that need review.^{[1][2][5][6][8]}

← All resources