Understanding tax-exempt solar financing
Why this comparison looks different from a for-profit business
It depends on your cash position, but ownership often wins over 10 years even without depreciation, since direct pay still delivers the full 30% ITC as cash. On a $240,000 system, owning with direct pay costs about $186,000 over 10 years including O&M, versus about $212,366 for a PPA at $0.09 per kWh with 2% annual escalation, a difference of roughly $26,366 in favor of ownership. A for-profit business would add depreciation tax savings on top of that ownership advantage, but a nonprofit doesn't get that extra boost since it has no tax bill to reduce, which is why the ITC calculator tells a different story for a taxable entity. Cross-check this against federal ITC calculator before deciding. A size estimate is only half the decision for a business. The cash purchase vs financed payback comparison in our Financing section can help you work out which way to pay for the system costs less.
How direct pay actually works
Direct pay, formally called elective pay under IRC Section 6417, lets nonprofits, municipalities, schools, and other tax-exempt entities receive the value of the ITC as a cash payment from the IRS instead of a credit against tax owed. It requires pre-registering the project with the IRS and then claiming the payment on Form 990-T, whose official IRS instructions spell out exactly how an applicable entity reports an elective payment election. This is different from a for-profit business, which simply applies the ITC against its own tax bill. Check the ITC calculator to confirm your exact rate before registering. If you want a second opinion on the size itself, the solar panel calculator in our System Sizing section works from your roof area and daily load instead of your building type.
Why depreciation doesn't factor in
Depreciation only has value against taxable income, and tax-exempt entities don't pay federal income tax, so there's no tax bill for a depreciation deduction to reduce. This is the main reason a for-profit business and a nonprofit see very different total costs on the same system, even with the same ITC rate. Compare against the general-business version in the PPA vs. ownership tool to see that difference directly, and the financing cost with ITC applied tool for how the credit alone changes the numbers without any depreciation benefit layered on.
Planning around the direct pay timing gap
Most tax-exempt entities receive their direct pay refund roughly 12 to 18 months after the system is placed in service, since payment follows the entity's annual tax filing cycle. Budget for that lag by securing bridge financing or setting aside reserve funds to cover the upfront cost until the payment arrives. A PPA sidesteps this timing issue entirely, since there's no upfront cost or refund to wait for. Check the nonprofit financing tool for more on bridging that gap, the IRS elective pay guidance for the official eligibility rules, and the federal ITC calculator in our rebates and incentives section can help confirm your exact credit percentage before you register.