This guide covers development tax credits comprehensively. Part one sets out the general credit framework, the basis reduction and recapture rules, and the passive activity limits that determine who can use these benefits. Part two covers the low-income housing credit: qualified basis, the set-aside election, the credit rates, and the fifteen-year compliance period. Part three covers the rehabilitation credit, the substantial rehabilitation test, and the certification requirement. Part four covers the new markets credit and the leverage structure that delivers it. Part five covers the partnership vehicle, allocations, and liability sharing. Part six covers the doctrinal limits. The guide closes with closing mechanics, compliance obligations, credit layering, and guidance for developers and investors.