trailing twelve months
Trailing Twelve Months (TTM) means the most recent twelve months of a business's numbers, counted from today backwards, not from January to December.
In plain English
Why does your accountant keep saying 'as at TTM' instead of just showing you last year's results?
Here is the thing about a normal financial year. It ends on a fixed date, say 31 December, and once that date passes, the report is already stale. If it is October and you want to know how a business has really been doing lately, a report dated last December is ten months old news. It cannot tell you about the customers gained in March or the branch that shut down in July.
Trailing Twelve Months solves that by rolling the window forward every month. Instead of asking 'how did you do in the 2023 financial year', it asks 'how have you done in the last twelve months, counting from right now'. So if today is October 2024, TTM figures cover November 2023 through October 2024. Next month, the window shifts again, dropping November 2023 and picking up November 2024.
A trader at Alaba market who supplies phone accessories might tell a bank manager, 'my TTM revenue is ₦38,000,000', meaning that is what she has actually sold over the last rolling year, not what she sold in some calendar year that ended long ago. It is a fresher, more honest snapshot.
Investors and lenders love TTM because it smooths out the wait for annual reports. A company listed on the Nigerian Exchange might only publish full year results once a year, but analysts calculate TTM earnings using the last four published quarters, so they are always working with something close to current reality rather than something already ten months stale.
For a Nigerian in London sending money home or comparing a UK employer's bonus scheme, TTM shows up too. A recruiter might ask for your trailing twelve months' income rather than last year's P60, because it captures a recent pay rise or a bonus that landed only three months ago.
A Lagos logistics company's financial year ends every 31 December. It is now September 2024. Instead of relying on the December 2023 report, its finance team adds up revenue from October 2023 to September 2024, arriving at a TTM revenue of ₦412,000,000, which includes a strong contract signed in June 2024 that the old annual report would have missed entirely.
Questions people ask
Is Trailing Twelve Months the same as a financial year?
No. A financial year is fixed, often ending on the same date every year, like 31 December or 31 March. TTM has no fixed end date. It always covers the most recent twelve months counted backwards from today, so it changes every month.
Why would a business bother calculating TTM instead of waiting for the annual report?
Because annual reports can be old by the time they arrive. TTM gives a more current consider, which matters to lenders deciding whether to extend credit now, investors pricing shares today, and owners who want to know if this quarter's push actually moved the needle.
Can an individual use TTM, more than companies?
Yes. Freelancers, landlords, and anyone with irregular income can calculate their own TTM earnings by adding up the last twelve months of income, which is often more useful for budgeting or loan applications than a single calendar year figure.
Last reviewed