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Whether you’re purchasing a new pair of eyeglasses, stocking up on over-the-counter medications, or paying for your child’s daycare, there may be certain expenses your health insurance plan doesn’t cover.

In those cases, having a flexible spending account, or FSA, could help you save money. This special savings account lets you set aside pretax dollars to pay for eligible out-of-pocket healthcare expenses, which in turn can lower your taxable income.

Let’s take a look at how these accounts work.

What Is an FSA?

An FSA is an employer-sponsored savings account you can use to pay for certain health care and dependent costs. It’s commonly included as part of a benefits package, so if you purchased a plan on the Health Insurance Marketplace, or have Medicaid or Medicare, you may no longer qualify for a FSA.
There are three types of FSA accounts:

•   Health care FSAs, which can be used to pay for eligible medical and dental expenses.

•   Dependent care FSAs, which can be used to pay for eligible child and adult care expenses, such as preschool, summer camp, and home health care.

•   Limited expense health care FSA, which can be used to pay for dental and vision expenses. This type of account is available to those who have a high-deductible health plan with a health savings account.

How Do You Fund an FSA?

If you opt into an FSA, you’ll need to decide on how much to regularly contribute throughout the year. Those contribution amounts will be automatically deducted from your paychecks and placed into the account. Whatever money you put into an FSA isn’t taxed, which means you can keep more of what you earn.

Your employer may also throw some money into your FSA account, but they are under no legal obligation to do so.

You can use your FSA throughout the year to either reimburse yourself or to help pay for eligible expenses for you, your spouse, and your dependents (more on that in a minute). Typically, you’ll be required to submit a claim through your employer and include proof of the expense (usually a receipt), along with a statement that says that your regular health insurance does not cover that cost.

Some employers offer an FSA debit card or checkbook, which you can use to pay for qualifying medical purchases without having to file a reimbursement claim through your employer.


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What Items Qualify for FSA Reimbursement?

The IRS decides which expenses qualify for FSA reimbursement, and the list is extensive. Here’s a look at some of what’s included — you can see the full list on the IRS’ website.

•   Health plan co-payments and deductibles (but not insurance premiums)

•   Prescription eyeglasses or contact lenses

•   Dental and vision expenses

•   Prescription medications

•   Over-the-counter medicines

•   First aid supplies

•   Menstrual care items

•   Birth control

•   Sunscreen

•   Home health care items, like thermometers, crutches, and medical alert devices

•   Medical diagnostic products, like cholesterol monitors, home EKG devices, and home blood pressure monitors

•   Home health care

•   Day care

•   Summer camp

Are There Any FSA Limits?

For 2023, health care FSA and limited health care FSA contributions are limited to $3,050 per year, per employer. Your spouse can also contribute $3,050 to their FSA account as well.

Meanwhile, dependent care FSA contributions are limited to $5,000 per household, or $2,500 if you’re married and filing separately.

Does an FSA Roll Over Each Year?

In general, you’ll need to use the money in an FSA within a plan year. Any unspent money will be lost. However, the IRS has changed the use-it-or-lose-it rule to allow a little more flexibility.

Now, your employer may be able to offer you a couple of options to use up any unspent money in an FSA:

•   A “grace period” of no more than 2½ extra months to spend whatever is left in your account

•   Rolling over up to $610 to use in the following plan year. (In 2024, that amount increases to $640.)

Note that your employer may be able to offer one of these options, but not both.

One way to avoid scrambling to spend down your FSA before the end of the year or the grace period is to plan ahead. Calculate all deductibles, copayments, coinsurance, prescription drugs, and other possible costs for the coming year, and only contribute what you think you’ll actually need.

Recommended: Flexible Spending Accounts: Rules, Regulations, and Uses

How Can You Use Up Your FSA?

You can consider some of these strategies to get the most out of your FSA:

•   Buy non-prescription items. Certain items are FSA-eligible without needing a prescription (but save your receipt for the paperwork!). These items may include first-aid kits, bandages, thermometers, blood pressure monitors, ice packs, and heating pads. Check out the FSA Store to find out which items may be covered.

•   Get your glasses (or contacts). You may be able to use your FSA to cover the cost of prescription eyeglasses, contact lenses, and sunglasses as well as reading glasses. Contact lens solution and eye drops may also be covered.

•   Keep family planning in mind. FSA-eligible items can include condoms, pregnancy tests, baby monitors, fertility kits. If you have a prescription for them, female contraceptives may also be covered.

•   Don’t forget your dentist. Unfortunately, toothpaste and cosmetic procedures are not covered by your FSA, but dental checkups and associated costs might be. These could include copays, deductibles, cleanings, fillings, X-rays, and even braces. Mouthguards and cleaning solutions for your retainers and dentures may be FSA-eligible as well.


💡 Quick Tip: Income, expenses, and life circumstances can change. Consider reviewing your budget a few times a year and making any adjustments if needed.

Flexible Savings Account (FSA) vs. Health Savings Account (HSA)

You may have heard of a health savings account (HSA). It’s easy to confuse it with an FSA, as they share some similarities.

Both types of accounts:

•   Offer some tax advantages

•   Can be used to pay for co-payments, deductibles, and eligible medical expenses

•   Can be funded through employee-payroll deductions, employer contributions, or individual deductions

•   Have a maximum contribution amount. In 2023, people with individual coverage can contribute up to $3,850 per year, while those with family coverage can cset aside up to $7,750 per year.

That said, there are some key differences between HSAs and FSAs:

•   You must be enrolled in a high deductible health plan in order to qualify for an HSA.

•   HSAs do not have a use-it-or-lose-it rule. Once you put money in the account, it’s yours.

•   If you quit or are fired from your job, your HSA can go with you. This happens even if your employer contributed money to the account.

•   If you’re 55 or older, you can contribute an additional $1,000 to your HSA as a catch-up contribution — similar to the catch-up contributions allowed with an IRA.

•   If you withdraw money from your HSA for a non-qualified expense before the age of 65, you’ll pay taxes on it plus a 20% penalty.

•   If you withdraw money from your HSA for any type of expense after age 65, you don’t pay a penalty. However, the withdrawal will be taxed like regular income.

Recommended: Benefits of Health Savings Accounts

The Takeaway

Flexible spending accounts are offered by employers and can be a useful tool for paying for health care- or dependent-related expenses. Notably, you fund the account with pretax dollars taken from your paycheck, which can lower your taxable income and help you save money.

You typically need to spend your FSA money within a plan year, though your employer may give you the option to either roll over a portion of the balance into the next year or use it during a grace period. There are also guidelines around what you can spend the FSA funds on and how much you can contribute to your account.

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High-frequency trading (HFT) firms use ultrafast computer algorithms to conduct big trades of stocks, options, and futures in fractions of a second. HFT firms also rely on sophisticated data networks to get price information and detect trends in markets.

A key characteristic of HFT trading — in addition to high speed, high-volume transactions — is the ultra-short time time horizon.

How high-frequency trading impacts markets is a controversial topic. Proponents of HFT say that these firms add liquidity to markets, helping bring down trading costs for everyone. HFT critics argue such firms are an example of how bigger, better-funded players have an advantage over smaller retail investors, and that HFT technology can be used for illegal purposes like front-running and spoofing.

What is High Frequency Trading?

Ultrafast speeds are paramount for high-frequency trading firms. Executing these automated trades at nanoseconds faster can mean the difference between profits and losses for HFT firms.

There are broadly two types of HFT strategies. The first is looking for trading opportunities that depend on market conditions. For instance, HFT firms may try to arbitrage price differences between exchange-traded funds (ETFs) and futures that track the same underlying index.

Futures contracts based on the S&P 500 Index may experience a price change nanoseconds faster than an ETF that tracks the same index. An HFT firm may capitalize on this price difference by using the futures price data to anticipate a price move in the ETF.

Another type of HFT is market making. Not all market makers are HFT firms, but market making is one of the businesses some HFT firms engage in.

A big market-making business for HFT firms is payment for order flow (PFOF). This is when retail brokerage firms send their client orders to HFT firms to execute. The HFT firms then make a payment to the retail brokerage firm.


💡 Quick Tip: Are self-directed brokerage accounts cost efficient? They can be, because they offer the convenience of being able to buy stocks online without using a traditional full-service broker (and the typical broker fees).

How HFT Works and Makes Money

High-frequency trading enables traders to profit from miniscule price fluctuations, and permits institutions to gain significant returns on bid-ask spreads. HFT algorithms can scan exchanges and multiple markets simultaneously, allowing traders to arbitrage slight price differences for the same asset.

Bid-Ask Spreads 101

High-frequency trading firms often profit from bid-ask spreads — the difference between the price at which a security is bought and the price at which it’s sold.

For instance, an HFT may provide a price quote for a stock that looks like this: $5-$5.01, 500×600. That means the HFT firm is willing to buy 500 shares at $5 each — the bid — while offering to sell 600 shares at $5.01 — the ask. The 1 cent difference is how the market maker makes a profit. While this seems small, with millions of trades, the profits can be sizable.

How wide bid-ask spreads are is also a marker of market liquidity. Bigger chunkier spreads are a sign of less liquid assets, while smaller, tighter spreads can indicate higher liquidity.

Recommended: What Is Quantitative Trading?

Payment For Order Flow 101

When it comes to payment for order flow, high-frequency traders can make money by seeing millions of retail trades that are bundled together.

This can be valuable data that gives HFT firms a sense of which way the market is headed in the short-term. HFT firms can trade on that information, taking the other side of the order and make money.

Background on High-Frequency Trading

High-frequency trading became popular when different stock exchanges started offering incentives to firms to add liquidity to the market. Liquidity is the ease with which trades can be done without affecting market prices.

Like momentum trading, the HFT industry grew rapidly as technology in the financial space began to take off in the mid-2000s.

Adding liquidity means being willing to take the other sides of trades and not needing to get trades filled immediately. In other words, you’re willing to sit and wait. Meanwhile, taking liquidity is when you’re seeking to get trades done as soon as possible.

During 2009, about 60% of the market was said to be HFT. Since then, that percentage has declined to about 50% as some HFT firms have struggled to make money due to ever-increasing technology costs and a lack of volatility in some markets. These days the HFT industry is dominated by a handful of trading firms.

Pros and Cons of High-Frequency Trading

HFT comes with certain pros and cons.

Pros of HFT

High-frequency trading is automated and efficient, thanks to its use of complex algorithms to identify and leverage opportunities.

HFT may create some liquidity in the markets.

Cons of HFT

Because high-frequency trades are conducted by institutional investors, like investment banks and hedge funds, these firms and their clientele tend to benefit more than retail investors.

Because high-frequency trades are made in seconds, HFT may only add a kind of “ghost liquidity” to the market.

Some HFT firms may also engage in illegal practices such as front-running or spoofing trades. Spoofing is where traders place market orders and then cancel them before the order is ever fulfilled, simply to create price movements.

The Debate Over High Frequency Trading

High-frequency trading is a controversial topic, and HFT firms have been involved in lawsuits alleging that they create an unfair advantage and potentially create volatility.

Criticism of HFT

One complaint about HFT is that it’s giving institutional investors an advantage because they can afford to develop rapid-speed computer algorithms and purchase extensive data networks.

Critics argue that HFT can add volatility to the market, since algorithms can make quick decisions without the judgment of humans to weigh on different situations that come up in markets.

For instance, after the so-called “Flash Crash” on May 6, 2010, when the S&P 500 dropped dramatically in a matter of minutes, critics argued that HFT firms exacerbated the selloff.

HFT critics also argue that such traders only provide a very temporary kind of liquidity that benefits their own trades, but not retail investors. A December 2020 paper published by the European Central Bank also argued that too much competition in the HFT industry can cause firms to engage in more speculative trading, which can harm market liquidity.


💡 Quick Tip: Before opening any investment account, consider what level of risk you are comfortable with. If you’re not sure, start with more conservative investments, and then adjust your portfolio as you learn more.

Defense of HFT

Defenders of high-frequency trading argue that it has improved liquidity and decreased the cost of trading for small, retail investors. In other words, it made markets more efficient.

This can be particularly important in markets like options trading, where there are thousands of different types of contracts that brokerages may have trouble finding buyers and sellers for. HFT can be helpful liquidity providers in such markets.

When it comes to payment for order flow, defenders of HFT also argue that retail investors have enjoyed price improvement, when they get better prices than they would on a public stock exchange.

The Takeaway

It’s tough to be an investor in many markets today without being affected by high-frequency trading. HFT firms are proprietary trading firms that rely on ultrafast computers and data networks to execute large orders, primarily in the stocks, options, and futures markets.

HFT proponents argue that their participation helps markets be more efficient. Critics argue that they have a big advantage over smaller investors, given how much they pay for information and data networks.

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FAQ

Is high-frequency trading profitable?

High-frequency trading aims to profit from micro changes in price movements through the use of highly sophisticated, ultrafast technology. That said, HFT investors are subject to losses as well as gains.

Is high-frequency trading illegal?

High-frequency trading has been the subject of lawsuits alleging that HFT firms have an unfair advantage over retail investors, but HFT is still allowed. That said, HFT firms have been linked to illegal practices such as front-running.

What is an example of high-frequency trading?

High-frequency trading can be used with a variety of strategies. One of the most common is arbitrage, which is a way of buying and selling securities to take advantage of (often) miniscule price differences between exchanges. A very simple example could be buying 100 shares of a stock at $75 per share on the Nasdaq stock exchange, and selling those shares on the NYSE for $75.20.

Photo credit: iStock/wacomka

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