Is data processing taxable in Connecticut?
Yes, at a reduced rate. Connecticut taxes data processing at 1%, far below the 6.35% AgentTax applies to information services.
| Short answer | Taxable at 1% |
|---|---|
| Authority | Conn. Gen. Stat. § 12-407; Conn. Gen. Stat. § 12-408(1)(D)(i); Conn. Agencies Regs. § 12-426-27(b)(1) |
| Last reviewed | 2026-09-30 |
Why
Connecticut lists computer and data processing services as taxable in Conn. Gen. Stat. § 12-407 and sets their rate at 1% in Conn. Gen. Stat. § 12-408(1)(D)(i). Its regulation, Conn. Agencies Regs. § 12-426-27(b)(1), defines them to include providing computer time, storing information and retrieving or providing access to information.
Because the two categories sit 5.35 points apart, classification matters more in Connecticut than almost anywhere. AgentTax routes AI compute work to data processing at 1%.
Business vs. consumer buyers
Connecticut is one of the states where buyer type can change the SaaS answer. For this category, the answer above applies to business and consumer buyers alike.
Where the line is
- If the deliverable is compiled information rather than processing of the buyer's own data, the 6.35% information service rate applies instead.
How AgentTax classifies data processing
Processing data the customer furnishes and returning the processed result: compute, transformation, analysis and API calls that operate on the buyer's own data. AgentTax routes compute work, API access and data processing to its data processing category.
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Open the calculatorFrequently asked questions
- What is the Connecticut sales tax rate on data processing?
- 1%. Information services are taxed at 6.35%, so the classification changes the rate by 5.35 points.
Related
- All Connecticut digital tax answers
- Is SaaS taxable in Connecticut? (full guide)
- Are information services taxable in Connecticut?
- Are professional services taxable in Connecticut?
- Data processing: every state we cover
- Is data processing taxable in California?
- Is data processing taxable in Iowa?
- Is data processing taxable in Kansas?
- Is data processing taxable in Kentucky?
- Is data processing taxable in Louisiana?
- Is data processing taxable in Maryland?
Sources
- Conn. Gen. Stat. § 12-407
- Conn. Gen. Stat. § 12-408(1)(D)(i)
- Conn. Agencies Regs. § 12-426-27(b)(1)
This page is for informational purposes only and is not tax, legal, or accounting advice. It reflects AgentTax's current interpretation of evolving law, which can change. Consult a qualified tax professional before making compliance decisions. Positions on this page come from the AgentTax tax policy registry (v1.24.0); see our methodology.