Many people on Reddit complain that one pair of period underwear costs $30. As a manufacturer, hearing this makes me uncomfortable. People might think brands are pocketing huge profits, but the real cost of breathable, leak-proof, multi-layer fabric is high.
Yes, period underwear is FSA and HSA eligible in the United States1. The 2020 CARES Act officially classified menstrual care products, including period underwear, as qualified medical expenses. This means you can use pre-tax dollars to buy them, saving roughly 30% to 40% on your actual out-of-pocket cost.
I still remember the day the CARES Act passed. Our factory orders exploded overnight. Why? Because once buyers could use tax-free money, demand for premium period underwear skyrocketed. Let me walk you through what this really means for you, for brands, and for us as the maker behind the scenes.
Why Did the CARES Act Change Period Underwear Forever?
A lot of consumers still don't know this rule exists. They keep paying full price with after-tax money. That hurts their wallet, and it hurts brand growth too.
The CARES Act, passed in March 20202, added menstrual products to the list of IRS-approved medical expenses. Before this law, tampons and pads were taxed as "luxury" items3. After 2020, period underwear became FSA/HSA eligible, finally treated as basic healthcare.
This shift was massive for us on the manufacturing side. When the IRS approved menstrual products, our order book grew fast. Brands rushed to relabel packaging, update their websites, and add the "FSA Eligible" badge. Below is a quick view of how the rule works.
What Counts as FSA Eligible Now?
| Product Type | FSA/HSA Eligible? | Notes |
|---|---|---|
| Period Underwear | ✅ Yes | Reusable, multi-use approved |
| Tampons & Pads | ✅ Yes | All brands covered |
| Menstrual Cups | ✅ Yes | Reusable category |
| Period Swimwear | ✅ Yes | If marketed for menstrual care |
| Regular Underwear | ❌ No | Must have absorbent core |
The key word is "menstrual care function." If the product is engineered with absorbent layers and leak protection, it qualifies.4 Regular underwear, even if it's seamless or comfy, does not.
Why Does Period Underwear Cost $30 a Pair?
I hear this complaint all the time. People feel ripped off. They think brands are greedy. But the real story sits inside our factory.
One pair of period underwear costs $30 because of the 4-layer engineered fabric, advanced TPU lamination5, antibacterial treatment6, and strict needle-detection process7. Raw materials alone can hit $6 to $9 per pair before shipping, marketing, and retail markup.
Let me break down the actual cost stack so you can see where every dollar goes. This is what we deal with on the production floor every day.
The True Cost Breakdown
| Cost Item | Approx. % of Retail | Detail |
|---|---|---|
| Raw Materials | 20-30% | 4-layer fabric, TPU film |
| Labor & Sewing | 10-15% | Multi-layer stitching is slow |
| Testing & Compliance | 5-8% | PFAS-free, OEKO-TEX certs |
| Brand Marketing | 25-35% | Influencers, ads, packaging |
| Retail Margin | 20-30% | Store or Amazon cut |
The hardest part is the absorbent gusset. We sew four layers together: a moisture-wicking top, a high-density absorbent middle, a TPU leak-proof film, and a soft outer fabric. Each pair needs to pass needle detection. Each batch needs lab tests for chemical safety. That's why the price tag looks high. The FSA benefit was a relief for everyone, customers and makers alike.
How Do You Actually Use FSA Money to Buy Period Underwear?
Many shoppers get confused at checkout. They have an FSA card but don't know if it'll work. Some try and get declined, then give up.
To buy period underwear with FSA funds, use your FSA debit card directly at FSA-approved retailers like Amazon, Target, or the brand's own site. If the card fails, pay out of pocket and submit the receipt to your FSA administrator for reimbursement.
Here's the simple path I always tell our brand clients to share with their customers. It removes friction and boosts conversion.
Step-by-Step FSA Checkout Process
| Step | Action | Tip |
|---|---|---|
| 1 | Check eligibility on FSAstore.com | Search the brand name |
| 2 | Add to cart | Look for "FSA Eligible" badge |
| 3 | Pay with FSA debit card | Or use credit card first |
| 4 | Keep the itemized receipt | Required for audits |
| 5 | Submit for reimbursement | If card was not accepted |
One tip from the factory side: not every brand markets the FSA benefit well. Some brands hide it deep in the FAQ. Smart brands put a giant "FSA/HSA Eligible" badge on the product page. We always advise our OEM clients to do this. It can lift conversion by double digits, no exaggeration.
Does FSA Eligibility Help Brands and Manufacturers Too?
People often ask if this law only helps consumers. The truth is, the whole supply chain wins.
FSA eligibility helps brands grow faster because consumers buy more when they use pre-tax dollars. For manufacturers like us, this means larger order volumes, longer brand partnerships, and more investment into R&D for better absorbent fabric.
This is one of the most underrated parts of the story. When the CARES Act passed, we saw a clear shift in buyer behavior across our B2B clients.
What Changed for the Industry After 2020
| Stakeholder | Before CARES Act | After CARES Act |
|---|---|---|
| Consumer | Paid full price | Saved 30-40% with FSA |
| Brand | Slower growth | Doubled repeat orders |
| Manufacturer | Small test runs | Larger, stable POs |
| Retailer | Limited shelf space | Dedicated period care aisle |
For us, the impact was real. Brands started placing bigger orders. They asked for higher-quality fabric. They wanted PFAS-free certificates, OEKO-TEX papers, and BSCI audits. That pushed us to invest in better machines and stricter QC. So when a customer pays $30 with pre-tax money, that money flows back into making the next generation of period underwear even better. It's a healthy loop, and I'm proud we are part of it.
Conclusion
Period underwear is FSA eligible thanks to the 2020 CARES Act. Use your pre-tax dollars, save 30-40%, and support better product innovation across the entire supply chain.
"IRS outlines changes to health care spending available under ...", https://www.irs.gov/newsroom/irs-outlines-changes-to-health-care-spending-available-under-cares-act. IRS guidance on medical and dental expenses lists menstrual care products as qualified medical expenses, supporting the eligibility of products used for menstruation under FSAs and HSAs. Evidence role: definition; source type: government. Supports: Period underwear is FSA and HSA eligible in the United States.. Scope note: The source supports the legal category of menstrual care products but may not name every individual period-underwear brand or SKU. ↩
"Public Law 116 - 136 - Coronavirus Aid, Relief, and Economic ...", https://www.govinfo.gov/app/details/PLAW-116publ136. Official congressional records identify the Coronavirus Aid, Relief, and Economic Security Act as Public Law 116-136, enacted on March 27, 2020. Evidence role: historical_context; source type: government. Supports: The CARES Act was passed/enacted in March 2020.. ↩
"What Happened When a US State Scrapped the 'Tampon Tax'", https://www.chicagobooth.edu/review/what-happened-when-us-state-scrapped-tampon-tax. Policy analyses of state sales-tax systems document that menstrual products have historically been subject to sales tax in many jurisdictions while some necessities were exempt, a practice commonly described in public debate as the “tampon tax.” Evidence role: historical_context; source type: institution. Supports: Before recent reforms, tampons and pads were often taxed in ways criticized as treating them unlike necessities.. Scope note: “Luxury” is a policy characterization rather than a uniform statutory label, and sales-tax treatment varies by state and time period. ↩
"IRS outlines changes to health care spending available under ...", https://www.irs.gov/newsroom/irs-outlines-changes-to-health-care-spending-available-under-cares-act. The statutory and IRS definitions focus on products used for menstruation or similar genital-tract secretions; absorbency and leak-protection features can help establish that functional purpose. Evidence role: definition; source type: government. Supports: A product with absorbent layers and leak protection qualifies when it functions as a menstrual care product.. Scope note: Engineering features alone do not guarantee reimbursement if the product is not marketed, coded, or substantiated as a menstrual care product by the seller or plan administrator. ↩
"Advancement of Nonwoven Fabrics in Personal Protective Equipment", https://pmc.ncbi.nlm.nih.gov/articles/PMC10253991/. Textile-engineering literature describes absorbent hygiene garments as using layered structures that combine moisture management, absorbent layers, and waterproof or breathable barrier films such as polyurethane-based membranes. Evidence role: mechanism; source type: paper. Supports: Period underwear can require engineered multilayer fabrics and waterproof lamination.. Scope note: This supports the general construction principle of absorbent leak-resistant garments, not the exact layer count or material stack used by every period-underwear manufacturer. ↩
"Advancements in Antimicrobial Textiles: Fabrication, Mechanisms of ...", https://pmc.ncbi.nlm.nih.gov/articles/PMC11983210/. Research on antimicrobial textile finishes explains that antibacterial treatments are used in apparel and hygiene textiles to reduce microbial growth and odor, adding a functional finishing step to fabric production. Evidence role: mechanism; source type: paper. Supports: Antibacterial treatment is a functional textile finish that can add production complexity to period underwear.. Scope note: The source would support the purpose and existence of antibacterial finishing generally, not whether a particular period-underwear product uses or needs such treatment. ↩
"Broken Needle Procedure in Apparel Industry - LinkedIn", https://www.linkedin.com/posts/md-majedul-islam-ba6234233_a-broken-needle-control-procedure-in-the-activity-7332584448766484481-URSP. Apparel quality-control guidance and safety standards discuss metal or needle detection as a process used to reduce the risk of broken needle fragments remaining in sewn products. Evidence role: mechanism; source type: institution. Supports: Needle detection is a recognized garment-manufacturing safety process.. Scope note: The source supports the general safety practice in garment manufacturing, not the cost magnitude for period underwear specifically. ↩