Financial models & model mechanics · Core
Opening balance
Also called: beginning balance
ELI5
The starting amount for a model period.
Used in conversation
“Run a downside case for opening balance before the review.”
Pitch context
You will see “Opening balance” in financial models, budgets, board packs and investor materials when the discussion reaches financial models & model mechanics.
Why it matters: In financial models & model mechanics, different calculation boundaries, periods or accounting treatments can change the number and the decision.
Caution
Calculation, recognition and disclosure can vary by accounting framework, company policy and reporting context.
Sources & evidence · 5
Direct term-level sources and supporting source families.
- IFRS Foundation — IFRS GlossaryDirect source · primary · checked 2026-08-16
- Financial Accounting Standards Board — FASB Accounting Standards CodificationDirect source · primary · checked 2026-08-16
- U.S. Small Business Administration — Write your business planDirect source · primary · checked 2026-08-16
- U.S. Small Business Administration — Break-even pointSupporting source family · primary · checked 2026-08-16
- U.S. Securities and Exchange Commission — Non-GAAP Financial Measures — Compliance and Disclosure InterpretationsSupporting source family · primary · checked 2026-08-16