Earn it, keep it, make it work
Making money is half the game. The other half is what you do with it: saving, investing, avoiding traps and paying the right tax. This page covers the money skills most adults wish they'd learned at 15.
This is general education, not financial advice. Rules, allowances and thresholds change every tax year, so check the official source for your country before you act (irs.gov, canada.ca, gov.uk, moneysmart.gov.au), and talk big decisions through with a parent or guardian. Sections that differ by country follow the country picked in the top bar.
Financial freedom is when your money pays your bills
It isn't a supercar or a big number on a screen. It's the point where things you own earn enough to cover how you live, so working becomes a choice.
Wealth vs money vs status
Naval Ravikant puts it simply: money is how we move wealth around, and wealth is assets that earn while you sleep. That could be a business, an index fund, a website or a skill that clients pay for again and again. Status is what people think of you, and chasing it usually costs money.
Wealth is what you don't see
Morgan Housel, in The Psychology of Money, points out that the person in the expensive car might just have an expensive car loan. Real wealth is the money someone didn't spend, sitting quietly invested. You can't see it on Instagram.
The 4% rule, simply
Research on past US markets found that people could usually take out about 4% of their investments a year without running out over 30 years. Flip that round and you get the freedom number: yearly spending × 25. It's a rough rule of thumb from history, not a promise, and many people use 3 to 3.5% to be safer.
Your freedom number
Example: a simple adult life in a shared apartmentPay yourself first, then spend what's left
Most people spend first and save whatever is left over, which is usually nothing. Flip it. The moment money lands, split it into pots. Most banking apps let you set up pots, "spaces" or sub-accounts for free.
Spend
Guilt-free money for fun. If it's in this pot, enjoy it.
Save
Short-term goals and an emergency buffer. Keep it in an easy-access savings account.
Invest
Long-term money you won't touch for 5+ years. This is where compounding happens.
Give
Charity, a friend, family. Generosity is a habit you can build early.
Reinvest
Back into your hustle: better kit, printing, a course. Spend it on things that earn more.
A budget is a plan for your money
It tells your money where to go instead of wondering where it went. Edit the table below. It's saved in your browser so you can come back to it.
| Item | Type | £ per month | |
|---|---|---|---|
| Money in | – | ||
| Money out | – | ||
| Left over | – |
Track for one month
Write down every purchase for 30 days. Most people find one thing they didn't realize they spent so much on, often food on the go or subscriptions.
Kill zombie subscriptions
Apps and games you forgot about keep charging. Check your bank app once a month and cancel anything you didn't use.
Use the 48-hour rule
Want something that isn't food or essential? Wait 48 hours. If you still want it, buy it. Most urges pass.
Get a proper account before you get customers
You need somewhere to receive bank transfers and keep business money apart from birthday money. Names below are examples, not recommendations, and products change.
Showing rules for · change country in the top bar
Accounts and cards
- Teen checking accounts: many banks and credit unions offer a joint account with a parent from about age 13, with a debit card and no overdraft.
- Teen debit card apps (examples: Greenlight, Step, Chase First Banking): parent-linked, with spending controls. Some charge a monthly fee.
- High-yield savings: online banks often pay far more interest than big branch banks. Custodial versions exist for minors.
Under 18 you generally need a parent or guardian as a joint owner or custodian. Examples, not endorsements.
Accounts and cards
- Youth accounts: the big banks and many credit unions offer no-fee youth chequing or savings accounts, usually until 18 or 19, often opened with a parent.
- Teen money apps (examples: Mydoh, KOHO): prepaid or parent-linked cards with spending controls. Check fees and age rules.
- High-interest savings: online banks and credit unions often beat the big banks' savings rates.
Under the age of majority (18 or 19, depending on the province) you'll usually need a parent or guardian on the account. Examples, not endorsements.
Accounts and cards
- Junior or teen current accounts: most big high-street banks offer one from age 11, usually with a debit card and no overdraft.
- App banks: several app-only banks offer accounts for 16 and 17 year olds, with pots and spending alerts.
- Prepaid cards with parent controls (examples: GoHenry, NatWest Rooster Money): good from younger ages, though some charge a monthly fee.
- Savings: children's savings accounts and regular savers often pay better rates than adult easy-access accounts. Compare on a site like MoneySavingExpert.
You'll usually need ID (passport or birth certificate) and a parent or guardian with you if you're under 16.
Accounts and cards
- Youth transaction accounts: the big four banks and many smaller ones offer fee-free youth accounts with a debit card, often from 12 or 14 (younger with a parent).
- Kids' money apps (examples: Spriggy, CommBank Youth / Kit): parent-linked prepaid cards and pocket-money tracking. Check fees.
- Youth savings accounts: many pay bonus interest if you deposit something each month and don't withdraw.
You'll need ID, and a parent or guardian to help open the account if you're young. Examples, not endorsements.
Use a separate pot or account for your hustle. When tax time comes, or a customer disputes a payment, you'll have a clean record of every payment in and out.
Tax-free wrappers are a cheat code
Governments give special accounts tax breaks to encourage saving. Using them early means decades of growth with no tax on it. The figures below were correct for recent tax years. Always check the current numbers.
Showing rules for · change country in the top bar
| Account | Who opens it | Yearly limit | When you can take money out | Good for |
|---|---|---|---|---|
| Custodial Roth IRA | A parent or guardian, for a minor with earned income | The lower of what you earned or the IRS yearly limit ($7,000 for 2025) | Your contributions can come out any time. Growth is tax-free after 59½ (some exceptions) | Teens with a job or side hustle income |
| UTMA / UGMA custodial account | A parent or guardian | No set limit (gift-tax rules apply) | Passes to you at 18 to 21, depending on the state | Flexible investing for a minor |
| 529 plan | A parent, grandparent or anyone | Set by each state's plan | Tax-free for qualified education costs; other withdrawals face tax and a penalty | College, trade school and some apprenticeships |
A custodial Roth IRA needs earned income: money from work, including self-employment like mowing lawns. Keep a simple log of jobs, dates and payments as proof. An allowance doesn't count. Check irs.gov for this year's limit.
| Account | Who opens it | Yearly limit | When you can take money out | Good for |
|---|---|---|---|---|
| TFSA (Tax-Free Savings Account) | You, once you reach the age of majority (18 or 19 by province). Contribution room starts building at 18. | Set yearly by the government ($7,000 for 2025), and unused room carries forward | Any time, and withdrawals are added back to your room the next year | Tax-free saving and investing for almost anything |
| RESP | A parent, grandparent or guardian | The government adds 20% on the first $2,500 a year (the CESG) | For post-secondary education | College, university and trade school |
| FHSA (First Home Savings Account) | You, from 18 (or the age of majority) | $8,000 a year, $40,000 lifetime | Tax-free for a first home | Saving for your first place |
| RRSP | You, at any age, with earned income | Based on earned income reported on your tax return | Mainly for retirement (taxed when taken out) | Later on. Filing a return now still builds room. |
Earned income on a return builds RRSP room you can use for decades, and at 19 you can start getting the GST/HST credit. Check canada.ca for current limits.
| Account | Who opens it | Yearly limit | When you can take money out | Good for |
|---|---|---|---|---|
| Junior ISA (cash or stocks & shares) | A parent or guardian, for under 18s | £9,000 | At 18 it becomes yours and turns into an adult ISA. From 16 you can take over managing it, but you still can't withdraw until 18. | Long-term investing with no tax on growth |
| Junior SIPP (pension) | A parent or guardian | £2,880 + 20% top-up = £3,600 | Not until your late 50s (currently 57 from 2028) | Families who want to start a pension very early |
| Lifetime ISA | You, from 18 to 39 | £4,000 + 25% bonus | For a first home (under a price cap) or from age 60. Otherwise there's a 25% withdrawal charge, which takes back more than the bonus. | Saving for a first home |
| Adult cash ISA | You | Part of the £20,000 ISA allowance | Any time | Tax-free savings. 16 and 17 year olds have been able to open one, but the government has announced changes, so check gov.uk first. |
| Account | Who opens it | Yearly limit | When you can take money out | Good for |
|---|---|---|---|---|
| Youth savings account | You with a parent, or a parent for you | No limit | Any time (bonus interest may need no withdrawals that month) | Short-term goals and an emergency buffer |
| Investing for a minor | A parent or guardian, holding shares or ETFs in trust for you | No set limit | Usually transferred to you at 18 | Long-term investing before you can open your own account |
| Superannuation | Your employer pays in once you work; under 18 only if you work more than 30 hours a week | Caps on extra contributions apply | Not until preservation age (60 for most people) | Retirement; extra contributions can be very tax-efficient |
| First Home Super Saver scheme | You, using voluntary super contributions | $15,000 a year, $50,000 total | Released for a first home | Saving for your first place later on |
Caps and rules change. moneysmart.gov.au and ato.gov.au have the current figures.
Own small pieces of thousands of companies
You don't need to pick the next big stock. Most people who invest well buy cheap, broad funds, keep adding to them every month and leave them alone for decades.
Shares
A tiny slice of one company. If the company grows, your share is worth more. If it fails, you can lose all of it.
Funds
A basket of many shares or bonds bought together. One purchase spreads your money across lots of companies.
Index funds
A fund that simply copies a market, like the whole world's biggest companies. Fees are tiny and you get the market's average return, which beats most professional stock pickers over time.
Diversification
Spreading money across many companies and countries so one bad result can't wipe you out.
Time in the market
Trying to buy at the bottom and sell at the top rarely works. Missing just a handful of the best days can cut long-term returns a lot. Regular monthly investing takes the guessing out.
Inflation
Prices rise over time, so cash in a jar slowly buys less. Investing long-term is one way to stay ahead of it.
Markets go down. Over long periods they've gone up.
This drawing is an illustration of how a broad stock index behaves: lots of drops, some big ones, but a rising trend over decades. It isn't real data and the future could be different.
If a 30% fall would make you sell in a panic, you'll lock in the loss. Only invest money you won't need for at least five years.
Fees matter more than you'd think
Example: £100 a month for 40 yearsThings that look like investing but aren't
Meme coins and hyped crypto
Prices are driven by social media and insiders who sell to late buyers. Many go to zero.
Leverage, CFDs and options apps
You can lose more than you put in. CFDs are banned for regular investors in the US, and in the UK and Australia brokers must say what share of their customers lose money on them. It's usually most of them.
Forex "signals" groups
Paid Telegram or Discord groups promising daily profits. The seller earns from your subscription or a referral fee, not from trading.
Sports betting and casino apps
The odds are built so the house wins over time. Gambling is illegal for under 18s almost everywhere, and sports betting is 21+ in most US states.
Buy now, pay later
It's debt. Miss a payment and you can face fees and damage to your future credit record.
Loot boxes and pack openings
Paying for a random chance at a rare item works like gambling. Buy the specific card or skin you want instead.
Small earners usually pay nothing, but keep records anyway
Being young doesn't exempt you from tax rules. The good news is the thresholds are generous for a side hustle.
Showing rules for · change country in the top bar
How it works
- $400 rule: if your net self-employment earnings are $400 or more in a year, you must file a tax return and pay self-employment tax (Social Security and Medicare), even if you owe no income tax.
- Standard deduction: you may owe no federal income tax below it, but the $400 rule still applies.
- 1099 forms: payment apps and platforms may report your income to the IRS once you pass their thresholds.
- State rules vary. Ask a parent or a tax preparer when you first cross $400, and check irs.gov.
How it works
- No minimum age: income is taxable at any age, but the basic personal amount (about $16,000 recently) means most teens owe no federal income tax.
- Self-employment: report business income on your return. From 18, you pay CPP contributions on self-employed earnings over $3,500.
- File anyway: it builds RRSP room, and from 19 it gets you the GST/HST credit.
- GST/HST: you only have to register once your sales pass $30,000 over four quarters.
- Provinces add their own tax. Check canada.ca.
How it works
- £1,000 trading allowance: if your total self-employed income (before costs) is £1,000 or less in a tax year (6 April to 5 April), you don't need to tell HMRC.
- Over £1,000: register for Self Assessment and file a tax return. You can either deduct your real costs or the £1,000 allowance, whichever is bigger.
- Personal Allowance: you can earn up to £12,570 a year (recent figure) before paying Income Tax, across all your income.
- National Insurance: doesn't apply under 16. From 16, self-employed people pay it on profits above a threshold set near the Personal Allowance.
- Selling your own old stuff isn't trading. Buying things to resell for profit is.
How it works
- Tax-free threshold: Australian residents can earn up to $18,200 a year before paying income tax.
- Earned income from your own work or business is taxed at normal rates even if you're under 18. Higher rates apply to a minor's unearned income, like interest above a small amount.
- Hobby or business? If you're doing it regularly to make a profit, it's a business. You can apply for an ABN, even under 18.
- GST: only needed once turnover reaches $75,000 a year.
- Check ato.gov.au for current rules.
Keep a simple spreadsheet: date, customer, what you did, amount received, and any costs with receipts (photos are fine). Ten seconds per job saves hours later. The Toolkit has templates.
Compounding works against you too
Investing makes returns on your returns. Debt charges interest on your interest. Credit cards often charge 20 to 35% a year. Paying only the minimum keeps you in debt for years.
| How you pay | Time to clear | Interest paid | Total paid |
|---|---|---|---|
| Minimum only | – | – | – |
| Fixed amount | – | – | – |
Credit history starts at 18
Lenders check it before giving you a phone plan, a car loan or a mortgage.
In the US you can get your own card at 18, but under 21 you need your own income or a co-signer. Being an authorized user on a parent's card can start your history early.
In Canada you can usually get a card at the age of majority (18 or 19, depending on the province). A secured card is an easy first step.
In the UK, registering on the electoral roll at your address helps.
In Australia your credit report starts once you take out credit at 18. Even a phone plan counts, so pay on time.
Build it slowly
One small credit card, used for a regular bill and paid off in full every month on autopay, builds a good record with zero interest.
Good debt is rare
Borrowing for something that reliably earns more than the interest can make sense. Borrowing for clothes, vacations or tech almost never does.
Most money mistakes are feelings, not math
Lifestyle creep
Earn more, spend more, end up no better off. When your income goes up, raise your saving percentage before you raise your spending.
The comparison trap
Feeds show the highlight reel: rented cars, sponsored trips, borrowed clothes. You're comparing your real bank balance to someone else's marketing.
Delayed gratification
£20 not spent at 15 and invested could be worth over £200 by 55 at a 6% return. Every purchase has a future price tag.
Knowing what's "enough"
Decide what a good life costs you. People who never define enough keep chasing more and take risks that blow everything up.
Room for error
Things go wrong: a phone breaks, a client cancels. A cash buffer means a bad month is annoying instead of a disaster.
Your best investment is you
A skill that lets you charge £25 an hour instead of £8 is worth more than any stock tip at your age. Spend on books, courses and tools that make you better.
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