LTM (Last Twelve Months)
A financial measurement covering the most recent 12 complete months of business — used for EBITDA, revenue, and other metrics as the denominator in valuation multiples. Essentially synonymous with TTM (Trailing Twelve Months).
Full Definition
LTM measures performance over the most recent 12 months, calculated on a rolling basis rather than by fiscal year. If it's August 2025 and the most recent closed month is July 2025, LTM July 2025 covers August 2024 through July 2025. This contrasts with fiscal-year metrics (which might be stale if significant time has passed since fiscal year-end) and pro-forma forward projections (which aren't actual performance).
How it actually works: In M&A valuation, LTM EBITDA is typically the denominator in multiple calculations. A deal quoted at "6x LTM EBITDA" means 6 times the most recent 12 months of adjusted EBITDA, not fiscal year EBITDA. LTM is considered most predictive of the near-term future because: (1) it captures the business's current trajectory rather than an aging fiscal year; (2) it includes the most recent month's performance; (3) it normalizes for seasonality since it covers a full year.
Calculation: LTM EBITDA = fiscal year EBITDA + year-to-date current year EBITDA − year-to-date prior year EBITDA. If 2024 fiscal EBITDA was $5.0M, Jan-Jul 2024 was $2.8M, Jan-Jul 2025 is $3.2M, LTM EBITDA (as of July 2025) = $5.0M + $3.2M − $2.8M = $5.4M.
Adjustments made to LTM: same add-backs that build reported EBITDA to Adjusted EBITDA. LTM Adjusted EBITDA is typically the valuation benchmark.
Seller vs. Buyer Perspective
LTM gives you the most recent performance to price against. If your business has been growing, LTM will be higher than prior fiscal year — use this. If your business has been declining, LTM is harder to defend, and you might prefer fiscal year framing. Most buyers will insist on LTM as the benchmark anyway, so prepare your LTM carefully: reconcile monthly financials, document all adjustments, prepare month-over-month commentary. If your business has seasonality, make sure the LTM period includes a full cycle (which by definition it does over 12 months, but timing of major recurring events matters).
LTM is the standard benchmark, but watch for gaming. Sellers sometimes time deals to capture a specific spike (unusually strong quarter) in LTM. Test LTM against trailing 24 months, fiscal year, and trend lines. Also test sustainability — is this LTM a new run-rate or a peak? For businesses with strong recent performance, negotiate on the trajectory story ("if growth continues...") while paying based on LTM. For businesses with weak recent performance but strong historical, understand what caused the weakness and whether it's temporary.
Real-World Example
A sell-side process for a $4.5M LTM EBITDA business. Timeline: Fiscal year 2024 ended December 31. Sale process launches in March 2025. LTM as of February 28, 2025: $4.5M (vs. fiscal year 2024: $4.2M). LTM captures strong early 2025 performance and excludes a one-time expense in early 2024. Buyer's QoE validates the LTM calculation and adjusts it down to $4.35M on quality grounds. At a 6x multiple, $4.35M × 6 = $26.1M enterprise value. Contrast: at fiscal year EBITDA basis, the same multiple would give $25.2M. The LTM framing preserved $900K of value. Sign a LOI at $26M in April, closing targeted for July. Between LOI signing and close, LTM as of May 31, 2025 grows to $4.55M — but price is locked at LOI-time LTM, preserving deal economics.
Why It Matters & Common Pitfalls
- !LTM can be gamed. Timing of expense recognition, revenue recognition, or one-time items within the LTM window can distort the metric.
- !Trailing 24 months vs LTM. If LTM is materially different from prior year, investigate why. Either the business is in significant trend (up or down) or there's a timing issue.
- !Rolling vs. stub periods. In deals that close mid-year, the "effective" LTM at close differs from LTM at signing. Handle in the definitive agreement.
- !Adjusted LTM. Same add-back discipline applies. Document every adjustment with supporting evidence.
- !LTM vs. NTM. Some sellers argue for NTM (Next Twelve Months) projections, especially for growth businesses. Buyers typically resist — projections are inherently less reliable than actuals.
- !Seasonality impact. In strongly seasonal businesses, the LTM cutoff date matters even within a full-year window — an LTM ending pre-peak season differs from one ending post-peak.
Frequently Asked Questions
What is LTM in M&A?↓
How is LTM EBITDA calculated?↓
Why do buyers use LTM instead of fiscal year EBITDA?↓
Related Terms
TTM (Trailing Twelve Months)
Financial measurement covering the most recent 12 completed months — used as the denominator in M&A valuation multiples. Synonymous with LTM (Last Twelve Months).
Adjusted EBITDA
EBITDA recalculated to remove one-time, non-recurring, or owner-specific expenses so buyers can see the true recurring earnings power of a business.
Valuation Multiple
The ratio between enterprise value and a financial metric — typically EBITDA — used to express what a business is worth in comparable terms. The primary language of SMB/LMM M&A pricing.
NTM (Next Twelve Months)
A forward-looking metric representing projected performance over the next 12 months — used in valuation when historical performance materially understates current or expected trajectory. NTM revenue and EBITDA multiples are common in high-growth sectors (SaaS, tech-enabled services) where historical TTM/LTM figures don't capture run-rate. Buyers resist NTM-based valuations because projections are inherently less reliable than actuals. Sellers can argue for NTM when there are documented, recent business changes (new contracts, launched products) that aren't fully in TTM.
EBITDA
Earnings Before Interest, Taxes, Depreciation, and Amortization — the most common measure of operating profitability used to value businesses in M&A transactions.
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Disclaimer: The information provided on this page is for educational and informational purposes only. It should not be considered financial, legal, or investment advice. Business valuations depend on many factors specific to each situation. Always consult with qualified professionals — including business brokers, CPAs, and M&A attorneys — before making acquisition or sale decisions. LegacyVector is not a licensed broker, financial advisor, or attorney. Data shown may be based on limited samples and may not reflect current market conditions.
LegacyVector Research Team
Reviewed by M&A professionals · Updated April 2026