Which TI-84 Is Allowed on the ACT? (Plus, Plus CE & TI-83)

All three are equally allowed on the ACT. The differences are about screen, battery, and age — not about whether the ACT permits them. The TI-84 Plus CE is the model most US students buy today.

Part the Third · Do not bring these

TI calculators that are banned on the ACT.

These are also Texas Instruments calculators, but they include a computer algebra system (CAS), which the ACT prohibits. They are easy to confuse with the TI-84 family — they are not interchangeable.

CodeModelStatusLast verified

ti-89-titanium

Texas Instruments TI-89 TitaniumCas Graphing

BannedLast verified 2026·05·20 ti-nspire-cx-cas

Texas Instruments TI-Nspire CX CASCas Graphing

BannedLast verified 2026·05·20

Part the Fourth · Official source

Where these answers come from.

Official source · 01ACT Calculator Policy

ACT states that 4-function, scientific, and graphing calculators are allowed unless prohibited, and its Digital ACT guidance says students may bring an approved handheld calculator during Math. The stored calculator data identifies the TI-84 Plus CE as a standalone graphing calculator without CAS, so this verdict treats that physical model as allowed while excluding apps, emulators, connected devices, and calculators with prohibited CAS functionality.

“4-function, scientific, and graphing models are allowed unless prohibited”

ACT Inc.Accessed 2026·05·20

Part the Fifth · Frequently asked

TI-84 and the ACT, answered.

Q.01Which TI-84 calculator should I bring to the ACT?

Any TI-84-family model — the TI-84 Plus, TI-84 Plus CE, or the older TI-83 Plus — is allowed on the ACT, because all three are non-CAS graphing calculators. If you already own one, bring it. If you are buying new, the TI-84 Plus CE is the current model most US students use.

Q.02Is the TI-84 Plus CE allowed on the ACT?

Yes. The TI-84 Plus CE is a non-CAS color graphing calculator, and the ACT allows graphing calculators unless a prohibited feature applies. Open the full TI-84 Plus CE ACT verdict for the official source and caveats.

Q.03Are any TI calculators banned on the ACT?

Yes. TI calculators with a computer algebra system (CAS) are prohibited, including the TI-89 and TI-89 Titanium and the TI-Nspire CX CAS. Do not confuse these with the non-CAS TI-84 family.

Q.04Can I use a TI-84 on the Digital ACT?

Yes. On the Digital ACT, Desmos is built into the testing platform, but you may still bring an approved handheld calculator such as a TI-84 during the Math section, as long as it is not connected to the testing device.

Keep exploring

See the full ACT calculator policy and every model verdict, or report a rule that has changed.

ACT calculator policy →

Which TI-84 Calculator Is Allowed on the ACT?

All three are approved for the ACT.

If you already own one, bring it. Buying new? Pick the CE.

Texas Instruments TI-84 Plus CE

Texas Instruments TI-84 Plus

Texas Instruments TI-83 Plus

TI calculators that are banned on the ACT.

Where these answers come from.

TI-84 and the ACT, answered.