
Schedule M-1: Reconciling Book Income to Tax on Forms 1120, 1120-S, and 1065
Schedule M-1 reconciles book net income to taxable income on Forms 1120, 1120-S, and 1065.
#depreciation
Methods and strategies for depreciating fixed assets including straight-line, MACRS, and accelerated depreciation

Schedule M-1 reconciles book net income to taxable income on Forms 1120, 1120-S, and 1065.

Section 45L pays builders and developers $500 to $5,000 per energy-efficient home, but the One Big Beautiful Bill Act ends the credit for homes acquired after June 30, 2026. A practical guide to ENERGY STAR versus Zero Energy Ready certification, prevailing wage rules on multifamily, the LIHTC basis carve-out, and the Form 8908 mechanics that decide whether the credit survives audit.

Section 45W ended for vehicles acquired after September 30, 2025, but businesses with a binding contract and a payment by that date can still claim up to $7,500 for light EVs or $40,000 for heavy trucks in 2026 — here is how the credit is calculated, filed on Form 8936, and refunded as cash to tax-exempt fleets through elective pay.

How Section 514 of the Internal Revenue Code taxes leveraged investments held by 501(c)(3) organizations, private foundations, and self-directed IRAs — including the debt/basis percentage calculation, Form 990-T mechanics, the 12-month look-back on sale, and the Section 514(c)(9) real estate exception for schools and pension trusts.

Reg. 1.469-2(f)(6) recharacterizes net rental income from property you rent to your own active business as nonpassive while leaving rental losses passive. This guide explains the asymmetry, walks through a dentist example with a $200,000 cost segregation deduction, and shows how the Reg. 1.469-4 grouping election can collapse the rule.

How the IRS Section 263(a)-3 tangible property regulations decide what small businesses can deduct now versus capitalize over decades — with the three safe harbors ($2,500/$5,000 de minimis, the small taxpayer building rule, and routine maintenance), the BRA test, and the unit-of-property trap that drives most mistakes.

A four-step pattern for recording the sale, scrap, or trade-in of business equipment—plus how Section 1245 depreciation recapture flows onto Form 4797 at tax time.

A working guide to how the IRS computes boot in a Section 1031 exchange — cash boot, mortgage boot, the four netting rules, depreciation recapture at 25%, carryover basis, and Form 8824 reporting — with a worked example showing how $200K of fresh equity can wipe out $200K of mortgage boot.

A practical guide to the tangible personal property (TPP) tax that 38 U.S. states require small businesses to file every January, covering de minimis thresholds in 12 states, freeport inventory exemptions in 8 inventory-tax states, ghost-asset overpayment, and the annual asset-register workflow that keeps your bill honest.

Qualified Improvement Property (QIP) under Section 168(e)(6) lets nonresidential interior build-outs use a 15-year recovery period and qualify for 100% bonus depreciation after the OBBBA. Covers the statutory test, three exclusions, TCJA-to-OBBBA history, a worked $540,000 restaurant example, and Form 3115 catch-up deductions.

Section 163(j) caps the business interest deduction at 30% of adjusted taxable income, and OBBBA restored the EBITDA-style add-back for tax years beginning after December 31, 2024. This guide walks through the calculation, the small business exemption under Section 448(c), the irrevocable real property trade or business election, the partnership EBIE basis trap, and the Form 8990 reporting choreography.

A practical guide to the federal tax election that lets buyers and sellers of S corporations and consolidated-group subsidiaries treat a stock purchase as an asset purchase for tax purposes — covering Form 8023, the seller gross-up, purchase price allocation under Section 1060, and the mistakes that commonly kill the election.