10 Side Hustles You Can Start This Month for Under $100

Most side hustle lists make the same promise: quick money, little effort, and almost no risk.

That is not how real extra income usually works.

So let’s start with the “think” part before the “earn” part. Every idea below can be started this month for under $100, but none of them are magic. They take time, patience, and some skill. Some people earn quickly. Others earn little or nothing at first.

The goal is not to chase every opportunity. The goal is to pick one simple idea, keep the risk small, and test it with clear eyes.

This post is for education only, not financial advice. Set your own budget, protect your time, and do not spend money you cannot afford to lose.

Before you start, use the 3-question test

A side hustle is still a small business test. Before you spend even $20, answer these three questions.

How much time can I give each week?

Be honest. Five steady hours beat 20 planned hours you never actually find. If your schedule is tight, choose something with flexible delivery, such as writing, templates, or resale.

What skill do I already have?

Starting with a skill you already understand cuts the learning cost. If you are good at explaining math, tutoring may fit. If you write clear emails at work, freelance writing or virtual assistant work may be easier to test.

What is the most I am willing to lose?

For this list, the spending capital is $100. That does not mean you should spend the full amount. It means you set a hard stop before excitement takes over.

Also count hidden costs, such as:

• Platform fees

• Samples

• Shipping supplies

• Gas or transportation

• Paid tools

• Refunds

• Time spent learning before earning

  
  

A cheap side hustle can still get expensive if you keep buying tools instead of testing demand.

1. Freelance writing

Freelance writing means creating written content for people or businesses. That could include blog posts, product descriptions, newsletters, website pages, short profiles, or email drafts.

Typical startup cost

Close to $0 if you already have a laptop and internet access. A simple free portfolio can be enough to start.

Watch out for

Low pay at the beginning and slow client hunting. Many new writers spend more time pitching than writing. That is normal at first.

How to start this month

Pick one type of writing and create two short samples. For example, write a 700-word blog post sample and three product descriptions for a made-up shop. Then reach out to small local businesses, website owners, or creators who already publish content but may need help.

The key is to be specific. “I can help write clear weekly blog posts for home service businesses” is stronger than “I can write anything.”

2. Virtual assistant services

Virtual assistants help busy people handle tasks they do not have time to manage. Common work includes email cleanup, scheduling, data entry, file organization, customer replies, research, and basic admin.

Typical startup cost

Low. Many tools have free versions, and most clients already use their own systems.

Watch out for

Reliability matters more than fancy tools. Clients may come and go, and unclear tasks can eat up your time if you do not set boundaries.

How to start this month

Make a short list of services you can confidently deliver. Keep it simple:

• Inbox cleanup

• Calendar scheduling

• Spreadsheet updates

• Travel research

• Basic customer support replies

  
  

Offer a small starter package, such as three hours of admin help. This gives the client a low-risk way to test you and gives you a chance to learn what kind of work you enjoy.

3. Digital products

Digital products are files people can buy and download. Examples include budget templates, meal planners, checklists, habit trackers, resume templates, classroom worksheets, and simple guides.

Typical startup cost

Free to low, depending on the tools you use. Many people start with free design or spreadsheet tools.

Watch out for

Competition is heavy. A general “budget planner” will be harder to sell than a specific planner for new renters, college students, or parents tracking school expenses.

How to start this month

Build one simple product that solves one clear problem. Do not create a huge bundle first. Make a clean, useful version, then ask a few people to test it.

A good first product may help someone:

• Plan a weekly grocery budget

• Track debt payments

• Prepare for a move

• Organize holiday spending

• Build a beginner workout log

  
  

Your first version does not need to be fancy. It needs to be useful.

4. Print-on-demand

Print-on-demand lets you create designs for items like mugs, shirts, tote bags, notebooks, or wall prints. A partner company prints and ships the product when someone orders.

Typical startup cost

Often low. You may be able to open a shop for free, but samples, subscriptions, and design tools can raise the cost.

Watch out for

Margins can be thin. Crowded markets also make it hard to get noticed. A funny shirt idea is not enough if many others sell similar designs.

How to start this month

Choose one niche and one type of product. For example, create five mug designs for nurses, dog walkers, gardeners, or new teachers. Order one sample if your budget allows, especially if quality matters to your reputation.

Avoid spending money on ads before you understand your costs. Know what you earn after production fees, platform fees, and shipping.

5. Online tutoring

Online tutoring works well if you can teach a subject, language, test skill, hobby, or software program clearly. You do not always need to be a certified teacher, but you do need to know the topic and explain it patiently.

Typical startup cost

Near $0 if you already have internet, a quiet space, and a working camera or microphone.

Watch out for

Tutoring takes preparation. You may need worksheets, lesson plans, or practice problems. Cancellations can also affect income.

How to start this month

Pick one subject and one level. “Middle school math homework help” is easier to sell than “all math.” “Beginner Spanish conversation practice” is clearer than “language tutoring.”

Start with people who already trust you, such as neighbors, parents, classmates, or community groups. Offer a short trial session, then build from there.

6. Pet sitting or dog walking

Pet sitting and dog walking can be a practical side hustle if you like animals and have a reliable schedule. Services may include short walks, feeding visits, litter box cleaning, or drop-in care while owners travel.

Typical startup cost

Usually under $100. You may need waste bags, a spare leash, treats, or transportation.

Watch out for

Animals are unpredictable. You need clear instructions, emergency contacts, and comfort with different pet personalities. Some platforms may require background checks or take fees.

How to start this month

Begin with people in your neighborhood or personal network. Create a simple one-page service list with your rates, availability, and the types of pets you can safely handle.

Do not overbook. One reliable visit is better than three rushed ones.

7. Local resale

Local resale means buying underpriced items and selling them for more. This can include books, small appliances, sports gear, kids’ items, tools, or household goods.

Typical startup cost

Flexible. You can start with items you already own, then use part of the money to buy inventory.

Watch out for

Not everything sells. Storage space, cleaning time, platform fees, and meetups all count as costs. Large items can also become a problem if they sit too long.

How to start this month

Start by selling five things from your home. This teaches you how to write clear listings, take decent photos, answer messages, and price items.

Then pick one category you understand. If you know tools, start there. If you know baby gear, start there. Knowledge helps you avoid bad buys.

8. House cleaning add-on services

Full house cleaning can require supplies, transportation, and hard physical work. But smaller add-on services can be easier to test. Think fridge cleaning, pantry organizing, garage sweeping, window washing, or move-out touch-ups.

Typical startup cost

Often under $100 for basic supplies, gloves, cloths, and cleaners.

Watch out for

Cleaning work can be tiring, and expectations vary. You need clear before-and-after boundaries. Some jobs may require supplies or insurance beyond a beginner budget.

How to start this month

Offer one narrow service. For example, clean and organize one fridge for a flat rate, or reset one pantry in two hours.

Take simple before-and-after photos if the customer agrees. Do not post private spaces without permission.

9. Handmade goods

If you already make something well, handmade goods can be a small test with low starting costs. Ideas include candles, crochet items, soap, greeting cards, baked goods where allowed, jewelry, ornaments, or simple wood crafts.

Typical startup cost

This depends on materials. Under $100 works best when you start with supplies you already own or make a very small batch.

Watch out for

Materials, packaging, mistakes, and unsold inventory can eat your profit. Food products may also have local rules, so check what is allowed before selling.

How to start this month

Make a small batch of one item. Price it by counting materials, packaging, platform fees, and your time. Then offer it to a small audience before buying more supplies.

A small sellout teaches you more than a closet full of inventory.

10. Mobile notary support or document services

Some states allow notary work after meeting specific requirements. Costs and rules vary, so this idea only fits if your state’s setup costs stay under your $100 cap. If notary work does not fit, related document services may include scanning, printing, form organization, or helping people prepare paperwork packets without giving legal advice.

Typical startup cost

Varies by state and service type. Basic document support may be low cost, while notary commissions can involve application fees, supplies, training, or a bond.

Watch out for

Rules matter. Do not offer legal advice unless you are qualified. Read your state’s requirements before spending money.

How to start this month

Check your state’s notary rules first. If it fits your budget, follow the official process. If not, test simple document organization services for people who need help sorting receipts, school forms, rental paperwork, or personal records.

This is a trust-based service, so privacy and care matter.

A quick way to choose the right idea

Do not choose the idea that sounds richest. Choose the one you can actually test.

Use this simple filter:

If two ideas look good, pick the one with the lowest cash risk and the shortest first test.

Keep your first month simple

The best first month is not about building a perfect brand, buying every tool, or planning a huge launch. It is about proving one thing: someone will pay for the service or product.

Try this simple plan.

Week 1

Choose one idea, set your $100 cap, and write down your offer.

Week 2

Create a sample, service list, or small batch.

Week 3

Tell 20 people or post in a place where buyers already look.

Week 4

Review what happened. Count money earned, time spent, and lessons learned.

If it worked, improve it. If it did not, adjust the offer before spending more.

The safest side hustle is the one you can test without putting your budget in danger. Think first. Learn from the test. Then earn with a plan.