Missing a rent review or option window can cost organisations tens of thousands. This guide covers the 7 lease milestones every commercial tenant must track and the systems that prevent costly misses.
What happens if you miss it: Most commercial leases specify a notice window - often 30 to 60 days - within which the tenant must respond to or trigger a rent review. Miss that window, and the landlord may lock in the current rent, or worse, apply a higher rate uncontested.
Concrete example: A missed market rent review with a 30-day notice window can lock you into above-market rent for another 12 months. At $50,000 per month for a mid-sized commercial site running 10% above market, that is $60,000 in avoidable overpayments before the next review opportunity arises.
CPI-linked reviews carry a different risk: if the CPI adjustment is applied to the wrong base rent due to data entry errors or a missed prior review, compounding errors accumulate across the lease term and become difficult to unwind without a formal dispute.
What happens if you miss it: A lease that expires without a renewal being negotiated typically rolls over as a periodic tenancy, often month-to-month. This sounds manageable but it hands significant leverage to the landlord, who can issue a relatively short notice to vacate at any time.
Concrete example: A retail organisation with a flagship store in a high-foot-traffic location loses track of the expiry date. By the time anyone acts, the landlord has already entered discussions with another tenant. The organisation faces the choice between accepting unfavourable renewal terms or losing the site entirely - neither of which was the planned outcome.
What happens if you miss it: Lease options to renew are typically subject to strict notice periods - often six to twelve months before expiry. Missing this window means the option lapses. The tenant loses their contractual right to renew, and must renegotiate from scratch if the landlord is willing at all.
Concrete example: An organisation holding a five-year option over a distribution centre fails to exercise within the required 12-month window. The landlord is not obligated to offer the same terms. Replacement premises take four months to secure at a 25% higher rent, plus fitout costs. The total cost of the missed deadline runs to several hundred thousand dollars.
What happens if you miss it: Make-good clauses require the tenant to restore the premises to a specified condition before vacating. These obligations typically need to be planned well in advance - often six to nine months before exit - to source contractors, obtain approvals, and complete works without disrupting business operations.
Concrete example: A property manager realises make-good works are required only four weeks before the lease end date. Emergency contractor rates and overtime premiums inflate the cost by 40% compared to a planned engagement. In some cases, landlords pursue tenants for cash settlement when make-good is not completed to standard, adding legal costs on top.
What happens if you miss it: Landlords commonly offer fitout incentives (cash contributions toward tenant improvements) as part of lease negotiations. These incentives have claim deadlines - typically 12 to 24 months after the lease commencement date. Missing the deadline means forfeiting cash the organisation was contractually entitled to receive.
Concrete example: A $150,000 fitout incentive goes unclaimed because the property manager responsible for the negotiation moved on, and their replacement was unaware of the claim deadline embedded in the lease schedule. The amount was material enough to require disclosure in the financial statements once the write-off was identified.
What happens if you miss it: Many commercial leases require the tenant to maintain a bank guarantee (or security deposit) in favour of the landlord. These guarantees often carry annual review dates or trigger events that require the amount to be confirmed or updated. Failure to comply with the guarantee terms can give the landlord grounds to draw on the security or claim a default.
Concrete example: A guarantee with an annual review clause is not updated following a lease extension. The landlord's solicitors argue the original guarantee no longer meets the updated lease terms and threaten to draw down. Resolving the dispute requires legal advice and a two-week delay in month-end processing.
What happens if you miss it: Many commercial leases include contractual rights that are time-limited - the right to surrender early, request a rent reduction following a hardship event, or sublet part of the premises. These rights lapse if not exercised within the defined window. Missing them forfeits a commercial option that may have significant value.
Concrete example: A lease contains an early surrender right exercisable in the fourth year of a seven-year term, subject to 90-day written notice. The organisation's footprint strategy changes but the team is unaware the window has passed. The organisation pays three more years of rent on underutilised space that could have been exited at a fraction of the cost.
Spreadsheets and calendar reminders work well enough for a handful of leases. They break down quickly as portfolios grow. The core problems are structural: milestone data lives in a single person's file, so when they leave, the knowledge goes with them. There is no visibility across the portfolio at a glance, and no automatic connection between property events and the finance team's IFRS 16 calculations. A rent review that gets actioned by property but not communicated to finance creates a data mismatch that only surfaces at audit - by which point the journal entries are already wrong.
For a detailed look at how disconnected systems between property and finance teams create compounding risk, see our post on aligning finance and property lease data.
Use this table to assess how your current process handles each milestone type.
| Milestone | Typical notice required | Consequence of missing | Who owns it | Tracked in LOIS? |
|---|---|---|---|---|
| Market rent review | 30-60 days | Locked into above-market rent for next review cycle | Property team | Yes - Dashboard alert and reminder |
| CPI rent review | Varies by lease | Wrong base rent, compounding calculation errors | Finance / Property | Yes - Dashboard alert and reminder |
| Lease expiry | 6-12 months for renegotiation | Rolls to periodic tenancy, loss of negotiating leverage | Property team | Yes - Dashboard alert and reminder |
| Option exercise window | 6-12 months before expiry | Option lapses, renegotiation from scratch or site loss | Property team | Yes - Dashboard alert and reminder |
| Make-good obligations | 6-9 months before exit | Emergency contractor rates, landlord claims for damages | Property team | Yes - Dashboard alert |
| Fitout incentive expiry | 12-24 months from commencement | Forfeited cash entitlement | Property team | Yes - Dashboard alert |
| Bank guarantee review | Annual or on trigger event | Landlord may draw on security or claim default | Finance / Property | Yes - Dashboard alert |
| Critical notification periods | Varies - often 60-90 days | Contractual right lapses, trapped in lease or foregone exit | Property team | Yes - Dashboard alert |
LOIS is built as a total tenant lease platform - not a workaround bolted onto an accounting tool. For property teams managing milestone risk, three features are central.
Portfolio timelines and proactive alerts give property managers a portfolio-wide view of upcoming events. Rather than relying on a personal calendar or a shared spreadsheet, all milestones are visible in a single timeline, with configurable lead times so alerts arrive with enough time to act.
Automatic reminders for rent reviews and expiries are set against each lease record and triggered automatically as deadlines approach. Reminders are not dependent on a specific person being present - they route to the right team regardless of staff changes.
Workflows and approvals between property and finance teams ensure that when a milestone is actioned - a rent review agreed, an option exercised - the downstream financial implications flow through to the finance team in a structured way. No manual handoffs, no data gaps at month end.
For a full overview of how LOIS supports property teams, see the LOIS property management page. For related reading on the operational side of lease portfolio risk, see 9 signs your lease management process is becoming a liability and mastering property lease management.
Rent review dates and option exercise windows are the most frequently missed milestones in commercial property portfolios. Both carry strict notice requirements - typically 30 to 60 days for rent reviews, and six to twelve months for options. The financial consequences range from months of above-market rent to the complete loss of a renewal right.
Property managers should have at least 90 days' advance notice before a market rent review date, and 60 days before a CPI-linked review. This lead time allows for market research, landlord engagement, and - if necessary - external valuations. Automated reminders set at 90, 60, and 30 days before each review date create multiple checkpoints so no single missed alert results in a missed deadline.
If a tenant fails to exercise a lease option within the contractually specified window, the option lapses. The tenant loses their right to renew on the existing terms and must renegotiate as if no option existed. The landlord is under no obligation to offer the same rent, term length, or conditions. In a tight property market, the tenant may also face the prospect of losing the premises entirely.
Purpose-built lease management platforms are the most reliable approach for organisations managing more than a handful of leases. Unlike calendar reminders or spreadsheets, a dedicated platform stores all milestone data against each lease record, sends automated alerts at configurable lead times, and provides a portfolio-wide timeline view. LOIS includes automatic reminders for rent reviews, lease expiries, and option windows, as well as portfolio timelines and structured workflows between property and finance teams.
Make-good obligations should be recorded against the relevant lease record from the date the lease is executed, not just before exit. Recording make-good terms at lease commencement, setting a planning alert 9 to 12 months before the lease end date, and building the associated cost into long-range financial planning are standard practices in well-managed commercial portfolios.