How Louisiana calculates spousal support
The first, and the one that defines Louisiana spousal support more than anything else, is the fault-free eligibility requirement. Civil Code article 111 authorizes support "to a party who is in need of support and who is free from fault prior to the filing of a proceeding to terminate the marriage." Article 112(A) repeats the same requirement for final periodic support specifically. This isn't a factor a judge weighs alongside others — it's a categorical bar. If the spouse asking for support was at fault before the divorce was filed, they don't get final periodic support, full stop, no matter how badly they need it or how much the other spouse earns. Qualifying fault includes adultery, abandonment, and abuse. Compare that to a state like Colorado or Kentucky, where the statute explicitly says fault plays no role at all — Louisiana sits at the opposite end of the spectrum, alongside South Carolina, as one of the two strictest fault regimes in the country.
There is one major exception, and it matters: the domestic-violence carve-out. When a spouse is awarded a divorce under article 103(2) through (5), or when the court determines that the requesting spouse (or a child) was a victim of domestic abuse committed by the other spouse during the marriage, that spouse is presumed entitled to final periodic support under article 112(C) — even if fault would otherwise be at issue. In effect, Louisiana flips its own fault-bar logic in abuse cases: rather than treating the abuse as something that might bar the victim, it treats survivorship as grounds for a presumption in favor of support. Raise this exception directly with your adviser, right alongside the general fault question, because getting this wrong in either direction produces a completely different bottom line.
The second defining feature is the one-third-of-net-income cap under article 112(D): "the sum awarded under this Article shall not exceed one-third of the obligor's net income." This is a hard ceiling, and it's a different kind of rule than the article 112(B) factors — it doesn't get weighed against anything, it just caps the total regardless of what the need-based factors would otherwise justify. If a recipient's documented need would call for 45% of the payor's net income, the award still can't exceed one-third. There are exceptions: the cap can be exceeded, and the court can order a lump-sum award instead, in domestic-abuse cases or in divorces granted under article 103(4) or (5). Note that the cap runs against net income specifically, not gross — so gather the payor's net figure rather than a gross salary number.
Once eligibility clears the fault-free bar (or the domestic-violence exception applies), a judge sets the actual amount and duration using the nine factors in article 112(B): the income and means of the parties (including liquidity); financial obligations, including any interim allowance or final child-support obligation; earning capacity; the effect of child custody on that earning capacity; the time the claimant would need to get education, training, or employment; health and age; duration of the marriage; tax consequences; and the existence, effect, and duration of any domestic abuse by the other spouse — regardless of whether that abuse was ever prosecuted criminally. There is no duration table or formula governing how long final periodic support runs; it simply continues until modified or terminated under general legal principles — remarriage, cohabitation, death, or a substantial change in circumstances.
Louisiana's spousal-support framework under articles 111 and 112 has not seen a textual amendment across the 2023, 2024, and 2025 editions of the Civil Code — this is a stable, long-standing post-1997 regime, not one in the middle of reform the way Minnesota or Utah's statutes recently were.
Content date: July 2026. Confirm current law and its application with a qualified attorney. Statute citations: La. Civil Code art. 111 (spousal support authority, fault-free requirement) and art. 112 (amount factors, fault bar, domestic-violence exception at (C), one-third-of-net-income cap at (D)).
Primary source: read the official Louisiana statute text →
Frequently Asked Questions
Do you have to be fault-free to get alimony in Louisiana?
Yes, for final periodic support. Civil Code articles 111 and 112(A) allow final periodic support only to a spouse who is free from fault prior to the filing of the divorce proceeding. Fault includes adultery, abandonment, and abuse. A spouse found at fault is categorically barred, unless the domestic-violence exception applies.
What is the domestic-violence exception to Louisiana's fault bar?
Under article 112(C), if a spouse is awarded divorce under article 103(2)-(5), or the court determines the requesting spouse or a child was a victim of domestic abuse by the other spouse during the marriage, that spouse is presumed entitled to final periodic support — reversing the usual fault-bar outcome in abuse cases.
Is there a cap on alimony in Louisiana?
Yes. Article 112(D) caps the total awarded at no more than one-third of the obligor's net income. This is a hard statutory ceiling, separate from the need-based factors — it can limit an award even if the recipient's demonstrated need would otherwise justify more. The cap can be exceeded, and support can be a lump sum, in domestic-abuse cases or divorces under article 103(4) or (5).
How long does Louisiana spousal support last?
There's no statutory duration formula or table. Final periodic support continues until modified or terminated by law — for example, on the recipient's remarriage or cohabitation, on death, or on a substantial change in circumstances.
Is there a Louisiana alimony formula?
No calculation formula exists. Amount and duration are set using the nine article 112(B) factors, subject always to the one-third-of-net-income cap and the fault-free eligibility requirement.