Updated for 2026 guidelines
Pennsylvania Spousal Support and APL Calculator 2026
Pennsylvania uses three different words for support between spouses, and only two of them come with a formula. This tool runs that formula and is clear about the third.
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log
Estimate Pennsylvania spousal support / APL
Estimated monthly spousal support / APL: $1,440.00
The court sets the actual award; this is the statutory formula amount, not a guarantee.
| Line item | Amount |
|---|---|
| Spousal support/APL without dependent children: 33 percent of obligor net available minus 40 percent of obligee netIf negative, the guideline amount is zero.Pa.R.Civ.P. 1910.16-4 (formulas: child support, spousal support/APL, shared custody Part D) (PA Supreme Court / Pennsylvania Code) | $1,440.00 |
| Guideline spousal support / APL, monthly (worksheet rounds to the nearest dollar)Pa.R.Civ.P. 1910.16-4 (formulas: child support, spousal support/APL, shared custody Part D) (PA Supreme Court / Pennsylvania Code) | $1,440.00 |
Assumptions
- Worksheet ordering (Rule 1910.16-4): spousal support/APL (Part B) is computed FIRST, then child support is calculated with the parties incomes adjusted by the spousal amount. The obligor net available for support also deducts support obligations to children of other relationships.
- Percentages reflect the post-2019 federal tax treatment (spousal support is not deductible by the obligor).
Estimate only. The court or state agency calculation controls.
Pennsylvania alimony under Pa.R.Civ.P. 1910.16-4 Part B (spousal support / APL formulas); 1910.16-2 (net income; Self-Support Reserve), effective 2026-01-01.
Spousal support, APL, and alimony are three different things
Spousal support is paid to a separated spouse before any divorce is final. Alimony pendente lite, usually shortened to APL, is paid while a divorce case is pending so both sides can carry the litigation. Both are computed with the same guideline formula in Rule 1910.16-4 Part B, and both are what this calculator estimates.
Alimony, in Pennsylvania usage, means support after the divorce decree. There is no formula for it. The court weighs a list of statutory factors and decides whether to award anything, how much, and for how long. Any calculator that prints a post-divorce alimony number for Pennsylvania is inventing it, and this one will not.
The formula itself is short. Without dependent children, the monthly amount is 33 percent of the paying spouse’s net income minus 40 percent of the receiving spouse’s net income. With dependent children it is 25 percent minus 30 percent, because child support is computed alongside and comes out of the same pay. A negative result means the guideline amount is zero.
Net income comes first, and it can shrink. The rules use monthly net income as defined in Rule 1910.16-2, and the payer’s side is reduced by support they already pay for children of other relationships before the percentage applies.
Two guardrails shape the result. The paying spouse always keeps the Self-Support Reserve of $1,255 a month, so the award is trimmed if it would cut into that floor. And when child support runs in the same case, the worksheet computes the spousal amount first, then adjusts both incomes before the child support math.
These percentages date from January 1, 2019. When federal tax law stopped letting payers deduct support, Pennsylvania rebuilt the formula around after-tax reality, replacing the older 40/30 structure with today’s 33/40 and 25/30.
- What the formula covers
- Spousal support and alimony pendente lite (APL), before the divorce is finalsource
- Without dependent children
- 33% of payer monthly net minus 40% of recipient monthly netsource
- With dependent children
- 25% of payer monthly net minus 30% of recipient monthly netsource
- Self-Support Reserve
- The payer retains $1,255 per month after the awardsource
- Post-divorce alimony
- No formula; a discretionary, factor-based award set by the courtsource
Worked example: $8,000 and $3,000 net, no dependent children
- Take a paying spouse with $8,000 in monthly net income and a receiving spouse with $3,000, no dependent children, and no other support obligations.
- The payer side of the formula is 33 percent of $8,000, which is $2,640.
- The recipient side is 40 percent of $3,000, which is $1,200.
- Subtract: $2,640 minus $1,200 leaves $1,440 a month of guideline spousal support or APL.
- The Self-Support Reserve does not bite here, because $8,000 minus $1,440 leaves the payer well above $1,255. A court can still deviate from the guideline figure with stated reasons.
The steps above follow the calculation method described on our methodology page.
How to use this estimate
Enter monthly net income for both spouses, using the Rule 1910.16-2 definition: gross income minus income taxes, FICA or self-employment tax, mandatory union dues, and mandatory retirement contributions.
Answer the dependent-children question honestly, because it switches the formula. Yes runs 25/30 on the assumption child support is computed alongside; no runs 33/40. If the payer supports children from other relationships, put that monthly amount in the last field so it comes off the top first.
Use the result for the separation and divorce-pending period only. For what happens after the decree, the honest answer is that Pennsylvania gives the judge a factor list, not a formula, and no calculator can predict that outcome.
What this estimate includes
- The Rule 1910.16-4 Part B formula: 33/40 without dependent children, 25/30 with
- The deduction for support the payer owes to children of other relationships
- The $1,255 Self-Support Reserve floor for the paying spouse
- Whole-dollar rounding, matching the official worksheet convention
What it leaves out
- Post-divorce alimony, which has no formula and is set by the court
- Entitlement defenses to spousal support, which can defeat a claim entirely
- The child support calculation itself, which runs on the adjusted incomes
- Duration; APL tracks the life of the divorce case rather than a schedule
Pennsylvania spousal support FAQs
What is the difference between spousal support and APL?
Timing and purpose. Spousal support can start at separation, before any divorce is filed. APL, alimony pendente lite, runs while a divorce case is pending and exists so both spouses can afford the litigation. The dollar math is the same guideline formula, and a spouse receives one or the other, not both at once.
Is there a formula for alimony after a Pennsylvania divorce?
No. Post-decree alimony is discretionary. The statute gives courts a list of factors, such as the length of the marriage, earnings and earning capacities, ages, health, and the standard of living, and the judge weighs them. The 33/40 and 25/30 percentages apply only to spousal support and APL before the decree.
Why are there two sets of percentages?
Because child support may be sharing the same paycheck. Without dependent children the formula is 33 percent of the payer’s net minus 40 percent of the recipient’s net. With dependent children it drops to 25 minus 30, since the child support obligation is calculated in the same case and the worksheet computes the spousal amount first.
When did the percentages change, and why?
January 1, 2019. The federal Tax Cuts and Jobs Act ended the deduction for support payments in new cases, so Pennsylvania replaced the old 40/30 formula, which assumed deductibility, with the current 33/40 and 25/30 structure built for after-tax dollars.
Can spousal support leave the payer unable to live?
The rules guard against that with the Self-Support Reserve. The guideline award is reduced so the paying spouse keeps at least $1,255 a month of net income, the same reserve the child support rules use as of January 1, 2026.
Does support the payer owes for other children matter?
Yes. Rule 1910.16-4 Part B subtracts the payer’s support obligations to children of other relationships from net income before the percentage applies. A payer with $8,000 net who pays $1,000 for a child of another relationship runs the formula on $7,000.
Is the guideline amount automatic?
It is presumptive, not automatic. A court can deviate with stated reasons, and defenses exist; a spouse whose conduct would give the other grounds for divorce can be denied spousal support entirely. APL is more resistant to those defenses because its purpose is funding the case itself.
Good to know in Pennsylvania
- If you searched for a Pennsylvania alimony calculator, the number you probably want is this spousal support and APL figure; it is the only spouse-to-spouse amount Pennsylvania computes by formula.
- The worksheet order matters in combined cases: spousal support or APL is computed first, then child support runs on incomes adjusted by that amount. Our child support page has a toggle that shows both together.
Official sources
Official sources last verified: .
- Pa.R.Civ.P. 1910.16-4 (formulas: child support, spousal support/APL, shared custody Part D)
PA Supreme Court / Pennsylvania Code Last checked
- Pa.R.Civ.P. 1910.16-2 (net income; SSR $1,255; low-income)
PA Supreme Court / Pennsylvania Code Last checked
Reviewed by SupportDecode Editorial Team Page content reviewed Sources Methodology Update log
Changelog: page first published with the 33/40 and 25/30 formulas and the $1,255 Self-Support Reserve. Material changes are dated in the update log.