How long business internet contracts run
The common term lengths and what each one trades away, when the clock actually starts, and what else the term controls.
How long is a typical business term?
Business internet and phone agreements commonly run 12, 24 or 36 months, and 36 months is the usual term for dedicated circuits. Some providers sell business broadband with no long-term commitment at all. Longer terms generally carry lower monthly pricing, and construction-heavy builds are often offered on 36 months only. The term is normally counted from the date service is activated, not the date you signed, and those can be months apart.
| Term | Typical trade-off | Suits |
|---|---|---|
| 12 months | Highest monthly rate, sometimes a setup fee that would otherwise be waived | A short lease, a temporary site, or a service you want to test |
| 24 months | The common middle. Moderate discount, moderate commitment | Most offices with a settled address |
| 36 months | Lowest monthly rate, and often the only term offered where construction is required | A long lease, or a build the provider has to fund |
| Month to month | No commitment, highest price, and often no protection against a price rise | Bridging a gap, or a site you expect to leave |
When does the clock actually start?
Look for the phrase service commencement date or billing start date. In most agreements the term begins when the circuit is turned up and billing starts, which is why a contract signed in January can end long after the following January. If the install needs construction, the gap can be substantial — dedicated fiber builds commonly run around 60 to 90 days from order to turn-up, and permits, trenching or building access work can push that to several months.
What else the term controls
- Your promotional rate, which commonly ends when the initial term does
- Your early termination exposure, which is usually tied to the months remaining
- Whether you renew automatically — many business agreements carry an evergreen clause
- Whether equipment or install costs were spread across the term, which can make leaving early more expensive than it looks
Is a longer term a bad idea?
Not usually. If your lease runs five years and the address has one viable fiber provider, a 36-month term at a lower rate is often the sensible choice, and the discount is real money every month. The risk lies in signing a long term at an address you may leave, or without knowing what the rate becomes at the end.
The one thing worth matching is your lease. A term that outlives your tenancy turns a move into a negotiation about early termination fees, and that is a weaker position than having aligned the dates in the first place.
Term lengths, start-date definitions and renewal behavior vary by provider and change over time. Your own signed agreement is what governs.
Last reviewed September 14, 2026
