obbba-overtime 0.1.1

Estimate the OBBBA above-the-line deduction for qualified overtime compensation, including the MAGI phase-out (2025-2028).
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obbba-overtime

Estimate the One Big Beautiful Bill Act (OBBBA) above-the-line deduction for qualified overtime compensation — the "no tax on overtime" provision — including its Modified Adjusted Gross Income (MAGI) phase-out. Pure, dependency-free Rust math — the same engine behind the NoOvertimeTax overtime deduction calculator.

Important: estimates pending final IRS guidance

OBBBA created a temporary (tax years 2025–2028) above-the-line deduction for FLSA-qualified overtime pay. The headline parameters below are widely reported from the statute and early IRS guidance, but the IRS was still issuing implementation details (exact MAGI computation, bonus treatment, precise phase-out slope) through late 2025 and into 2026. Every figure here is an estimate / model input, not a guarantee of any taxpayer's actual deduction. Always confirm against final IRS guidance and a qualified tax professional.

Default (estimated) parameters:

Parameter Single / HoH Married Filing Jointly
Maximum deduction (cap) $12,500 $25,000
MAGI phase-out begins $150,000 $300,000
Phase-out reduction $1 of deduction lost per $10 of MAGI over the threshold

Usage

use obbba_overtime::{deduction, tax_savings, FilingStatus};

// $8,000 of qualified overtime, MAGI $90,000, single → full $8,000 deduction
let d = deduction(8_000.0, 90_000.0, FilingStatus::Single);
assert!((d - 8_000.0).abs() < 1e-6);

// Estimated federal savings at a 22% marginal rate
let s = tax_savings(10_000.0, 80_000.0, 0.22, FilingStatus::Single);
assert!((s - 2_200.0).abs() < 1e-6);

Parameters are overridable via Params so the crate can track IRS guidance as it finalizes.

Live calculator

For an interactive version, see the OBBBA overtime deduction calculator at NoOvertimeTax.

License: MIT