Massachusetts

For Massachusetts, section 179 conformity is conforms; state section 179 cap is federal limit applies; state section 179 phase-out is federal phase-out applies; bonus depreciation conformity is decouples — requires add-back; add-back rule is Massachusetts specifically decoupled from the federal bonus depreciation provisions under IRC § 168(k), recorded from its source on 2026-08-15; source re-checked 2026-10-01.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

State Follows Bonus Depreciation-TCJA of 2017 : No Massachusetts does not conform to the Tax Cuts and Jobs Act provision that provides a 100% first-year deduction for the adjusted basis is allowed for qualified property acquired and placed in service after September 27, 2017, and before January 1, 2023. Massachusetts specifically decoupled from the federal bonus depreciation provisions under IRC § 168(k). State Follows IRC § 179-TCJA of 2017: Yes Massachusetts conforms to the Tax Cuts and Jobs Act provision that increases the maximum amount a taxpayer may expense under IRC Section 179 to $1 million, increases the phase-out threshold amount to $2.5 million, and provides for indexing for inflation. Massachusetts adopts the IRC as amended and in effect for the taxable year.

— accountants.intuit.com, retrieved 2026-08-15

Source

• accountants.intuit.comhttps://accountants.intuit.com/support/en-us/help-article/asset-depreciation/state-conformity-special-depreciation-allowance/L27kRyetJ_US_en_US

Last verified against source: 2026-10-01. Due for re-check by 2027-08-15. This page as Markdown · OKF bundle · full dataset as JSON.