Rebate Guide — Colorado
Colorado's greywater rebate landscape is fragmented — programs exist at the utility level and change based on budget and drought conditions. Colorado also requires a permit for all greywater systems, so the rebate process and permit process run in parallel. Note: the permit and rebate are entirely separate — you need both but apply to different entities.
| Program | Amount | Eligibility | How to Apply |
|---|---|---|---|
| Denver Water Conservation Rebate | Varies — check current offerings | Denver Water customers | Check denverwater.org/conservation. Programs change based on drought status and budget. Denver Water has offered greywater rebates in past cycles. |
| Boulder County / City of Boulder | Varies — check boulderwaterwise.com | Boulder utility customers | Boulder has historically offered rebates for water conservation measures including greywater. Check current offerings at boulderwaterwise.com. |
| Fort Collins Utilities | Varies — check current pilot program status | Fort Collins Utilities customers | Fort Collins has run a greywater pilot program. Contact Fort Collins Utilities conservation team at (970) 221-6700. |
| Xcel Energy (water heat savings) | Energy rebates only (not water) | N/A for greywater water savings | Not applicable to greywater water savings — mentioned to clarify that Xcel's rebates are energy-only. |
Most Colorado programs require pre-installation registration or approval. Do not purchase materials until you've confirmed program requirements with your utility.
In many cases you can stack multiple incentives — for example, a local utility rebate AND a state tax credit (where available). Apply to all programs you qualify for simultaneously.
No — Colorado does not have a state income tax credit for residential greywater installations as of 2025. The Arizona 25% tax credit has no Colorado equivalent. Your incentives in Colorado are limited to utility rebate programs (which vary and change) plus the direct water bill savings.
In Colorado, the permit and rebate are separate processes. Most Colorado utilities recommend getting your permit in process before applying for a rebate (to confirm you're building a legal system), but you don't necessarily need final permit approval before submitting a rebate application. Ask your utility for their specific sequencing preference.
If your utility has no active greywater rebate, the financial case still works on water savings alone. Use the ROI calculator to estimate your payback period at your specific water rate. Colorado water rates have been increasing 4–7% per year in many Front Range utilities, which shortens payback periods relative to historical rates.
See the full Colorado greywater permit rules and installation guide:
Colorado State Guide →