BRANDYWINE REALTY TRUST Revenue Disclosure

Revenue Recognition

Rental revenue is recognized on the straight-line basis, which averages minimum rent over the terms of the lease from the later of the date of the commencement of the lease or the date of acquisition of the property subject to existing leases. The straight-line rent adjustment increased revenue by approximately $24.9 million in 2017, $26.3 million in 2016 and $21.6 million in 2015. Deferred rents on the balance sheet represent rental revenue received prior to their due dates and amounts paid by the tenant for certain improvements considered to be landlord assets that will remain as the Company’s property at the end of the tenant’s lease term. The amortization of the amounts paid by the tenant for such improvements is calculated on a straight-line basis over the term of the tenant’s lease and is a component of straight-line rental income and increased revenue by $2.2 million in 2017, $2.1 million in 2016 and $2.0 million in 2015. Lease incentives, which are included as reductions of rental revenue in the accompanying consolidated statements of operations, are recognized on a straight-line basis over the term of the lease. Lease incentives decreased revenue by $1.8 million in 2017, $2.0 million in 2016 and $1.8 million in 2015.

In addition, the Company’s rental revenue is impacted by the Company’s determination of whether improvements to the properties, whether made by the Company or by the tenant, are landlord assets. The determination of whether an improvement is a landlord asset requires judgment.  In making this judgment, the Company’s primary consideration is whether the improvement would be utilizable by another tenant upon move out of the improved space by the then-existing tenant. If the Company has funded an improvement that it determines not to be landlord assets, then it treats the cost of the improvement as a lease incentive. If the tenant has funded the improvement that the Company determines to be landlord assets, then the Company treats the costs of the improvement as deferred revenue and amortizes this cost into revenue over the lease term. For certain leases, the Company makes significant assumptions and judgments in determining the lease term, including assumptions when the lease provides the tenant with an early termination option. The lease term impacts the period over which the Company determines and records minimum rents and also impacts the period over which the Company amortizes lease-related costs.

The Company’s leases also typically provide for tenant reimbursement of a portion of common area maintenance expenses and other operating expenses to the extent that a tenant’s pro rata share of expenses exceeds a base year level set in the lease or to the extent that the tenant has a lease on a triple net basis.

Recoveries from tenants, consisting of amounts due from tenants for common area maintenance expenses, real estate taxes and other recoverable costs are recognized as revenue in the period during which the expenses are incurred.

Tenant reimbursements are recognized and presented in accordance with accounting guidance which requires that these reimbursements be recorded on a gross basis because the Company is generally the primary obligor with respect to the goods and services the purchase of which gives rise to the reimbursement obligation; because the Company has discretion in selecting the vendors and suppliers; and because the Company bears the credit risk in the event they do not reimburse the Company. The Company also receives payments from third parties for reimbursement of a portion of the payroll and payroll-related costs for certain of the Company’s personnel allocated to perform services for these third parties and reflects these payments on a gross basis.

The Company recognizes gains on sales of real estate at times and in amounts determined in accordance with the accounting guidance for sales of real estate. The guidance takes into account the terms of the transaction and any continuing involvement, including in the form of management, leasing of space or financial assistance associated with the properties. If the sales criteria for the full accrual method are not met, then the Company defers some or all of the gain recognition and accounts for the continued operations of the property by applying the finance, leasing, profit sharing, deposit, installment or cost recovery method, as appropriate, until the sales criteria are met.

The Company derives parking revenues from leases, monthly parking and transient parking. The Company recognizes parking revenue as earned.

The Company’s flexible stay revenue consists of room revenue, food and beverage revenue, and revenue from other hotel operating departments (such as parking fees and other guest service fees). These revenues are recorded net of any sales and occupancy taxes collected from the hotel guests. All rebates or discounts are recorded as a reduction to revenue, and there are no material contingent obligations with respect to rebates and discounts offered by the hotel. All revenues are recorded on an accrual basis as they are earned. Any cash received prior to a guest’s arrival is recorded as an advance deposit from the guest and recognized as revenue at the time of the guest's occupancy at the hotel property.

The Company receives leasing commission income, property management fees and third party development fees. Leasing commission income is earned based on a percentage of gross rental income upon a tenant signing a lease with a third party lessor. Property management fees are recorded and earned based on a percentage of collected rents at the properties under management, and not on a straight-line basis because such fees are contingent upon the collection of rents. The Company records development fees on a percentage of completion basis taking into account the risk associated with each project.

The Company recognizes fees received for lease terminations as revenue and writes off against such revenue any deferred rents receivable. The resulting net amount is the net revenue from the early termination of the leases. When a tenant's lease for space in a property is terminated early but the tenant continues to lease such space under a new or modified lease in the property, the net revenue from the early termination of the lease is recognized evenly over the remaining life of the new or modified lease in place on that property, unless the Company cannot determine that collectability of the lease termination revenue is reasonably assured.

No tenant represented greater than 10% of the Company’s rental revenue in 2017, 2016 or 2015.