# Lease accounting for enterprise buyers: what AI models recommend, September 2026 Gane Index, September 2026 Edition. Asked as "lease accounting software" and as "ASC 842 and IFRS 16 compliance tool", six framings each, to twelve models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/finance/accounting/lease-accounting/2026-09/enterprise This is the permanent record of the September 2026 Edition, published September 17, 2026 and superseded since. The current standing: https://www.gane.ai/index/finance/accounting/lease-accounting/enterprise/index.md **Standing:** Nakisa Lease Administration leads with 24% of first choices; verdict contested. 41 first choices across the direct, paraphrase, budget and scale prompts. ## First-choice share | Rank | Product | Share | Negative rate | Labels | |---|---|---|---|---| | 1 | [Nakisa Lease Administration](https://www.gane.ai/index/finance/vendors/nakisa-lease-administration/index.md) | 24% | 8% | 40 | | 2 | [Visual Lease](https://www.gane.ai/index/finance/vendors/visual-lease/index.md) | 15% | 11% | 45 | | 3 | [LeaseAccelerator](https://www.gane.ai/index/finance/vendors/leaseaccelerator/index.md) | 15% | 5% | 37 | | 4 | [FinQuery](https://www.gane.ai/index/finance/vendors/finquery/index.md) | 15% | 13% | 39 | | 5 | [MRI ProLease](https://www.gane.ai/index/finance/vendors/mri-prolease/index.md) | 7% | 6% | 31 | | 6 | [Black Owl Systems](https://www.gane.ai/index/finance/vendors/black-owl-systems/index.md) | 7% | 5% | 20 | | 7 | [BlackLine Lease Accounting](https://www.gane.ai/index/finance/vendors/blackline-lease-accounting/index.md) | 5% | 0% | 13 | | 8 | [CoStar Real Estate Manager](https://www.gane.ai/index/finance/vendors/costar-real-estate-manager/index.md) | 2% | 21% | 14 | | 10 | [Spacebase](https://www.gane.ai/index/finance/vendors/spacebase/index.md) | 2% | 27% | 11 | | 13 | [Trullion](https://www.gane.ai/index/finance/vendors/trullion/index.md) | 0% | 10% | 21 | | 45 | [Oracle Lease Accounting](https://www.gane.ai/index/finance/vendors/oracle-lease-accounting/index.md) | 0% | 60% | 10 | Rank is by share of first choices among all 47 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels. ## Each model's first choice on the direct prompt - Claude Haiku 4.5: Visual Lease; alternatives FinQuery, Nakisa Lease Administration, Spacebase, Trullion - GPT-5.4 mini: Nakisa Lease Administration; alternatives Accruent Lucernex, FinQuery - Gemini 3.5 Flash: Nakisa Lease Administration; alternatives FinQuery, LeaseAccelerator, NetLease, Trullion - Perplexity Sonar: Nakisa Lease Administration; alternatives LeaseQuery powered, Visual Lease - Grok 4.20: FinQuery; alternatives BlackLine Lease Accounting, LeaseAccelerator, MRI ProLease, Nakisa Lease Administration - Mistral Small: Black Owl Systems; alternatives LeaseAccelerator, SOFT4Lessee, Spacebase - DeepSeek V4 Flash: LeaseAccelerator; alternatives FinQuery, Nakisa Lease Administration - Llama 4 Maverick: Spacebase; alternatives Black Owl Systems, LeaseAccelerator, SOFT4Lessee, Trullion - Qwen 3.7 Flash: BlackLine Lease Accounting; alternatives LeaseAccelerator, MRI ProLease, Visual Lease - Kimi K2: FinQuery, Visual Lease; alternatives BlackLine Lease Accounting, CoStar Real Estate Manager - GLM 4.7 FlashX: BlackLine Lease Accounting; alternatives Black Owl Systems, CoStar Real Estate Manager, LeaseAccelerator, NetSuite Lease Accounting - MiniMax M2.5: FinQuery; alternatives BlackLine Lease Accounting, LeaseAccelerator, Spacebase ## Sources the answers cite 67 of 72 answers came back with a source list, from 12 of 12 models. Sites named in the most answers: - softwareconnect.com: 48 answers, 52 citations - blackowlsystems.com: 42 answers, 61 citations - debtbook.com: 41 answers, 43 citations - gartner.com: 37 answers, 46 citations - guideflow.com: 33 answers, 36 citations - trullion.com: 32 answers, 44 citations - acquisition-international.com: 32 answers, 32 citations - capterra.com: 31 answers, 49 citations Pages named in the most answers: - https://softwareconnect.com/roundups/best-lease-accounting-software (47 answers) - https://debtbook.com/blog/best-lease-accounting-software (41 answers) - https://gartner.com/reviews/market/lease-accounting-and-management-software (37 answers) - https://blackowlsystems.com/best-enterprise-lease-accounting-software (34 answers) - https://acquisition-international.com/best-lease-accounting-software-of-2026-from-compliance-to-cashflow (32 answers) - https://guideflow.com/blog/lease-accounting-software (31 answers) - https://trullion.com/blog/lease-accounting-software-solutions-for-asc-842-ifrs-16-2026-guide (26 answers) - https://impakter.com/best-lease-accounting-software (21 answers) - https://capterra.com/lease-accounting-software (18 answers) - https://netgain.tech/blog/best-lease-accounting-software (14 answers) ## Warned against - Oracle Lease Accounting: 6 of 10 labels negative. "ERPs are not purpose-built for modern lease accounting... When to avoid: If your portfolio exceeds 500 leases" (Grok 4.20, negative prompt) - SAP RE-FX: 5 of 7 labels negative. "Generic ERP Modules (e.g., SAP Contract and Lease Management...) ... When to avoid: If your portfolio exceeds 500 leases or involves global entities." (Grok 4.20, negative prompt) - Microsoft Excel: 4 of 4 labels negative. "Spreadsheets or Basic Templates (e.g., Excel-based trackers): ... they break at scale due to version control issues, error-prone manual calculations" (Grok 4.20, negative prompt) - FinQuery: 5 of 39 labels negative. "Why these beat per-user alternatives (Visual Lease, FinQuery, DebtBook)" (DeepSeek V4 Flash, budget prompt) ## Record - Method: https://www.gane.ai/index/finance/methodology - License: CC BY 4.0. Cite as Gane Index, September 2026 Edition, www.gane.ai/index/finance.