Debt is part of everyday life for millions of South Africans.
A home loan can help a family buy a house decades before they could afford to pay cash. Vehicle finance can make getting to work possible. A student loan may help fund an education. A carefully managed credit card can provide flexibility.
But there is a point where debt stops being a useful financial tool and starts controlling your salary.
The difficult part is that this point doesn’t arrive with an SMS saying:
“Warning: You officially have too much debt.”
For most people, it happens gradually.
One store account becomes two. The car payment goes up. A personal loan is added to consolidate another debt. The credit card starts covering groceries near payday. Then an unexpected R3,000 expense arrives and there is simply nowhere for the money to come from.
So how do you know when you’ve crossed the line?
There isn’t one universal percentage that automatically means every South African has “too much debt.” Your income, household expenses, dependants, housing costs, type of debt and financial buffer all matter.
However, calculating your debt-to-income ratio (DTI) and examining how much disposable income remains after your repayments can provide an extremely useful warning system.
And this isn’t just a theoretical problem.
According to the National Credit Regulator’s Credit Bureau Monitor, South Africa had approximately 29.24 million credit-active consumers at the end of June 2025. About 10.54 million had impaired credit records, representing 36.05% of credit-active consumers. (NCR)
Meanwhile, the South African Reserve Bank reported that household debt stood at 62.2% of household disposable income in the first quarter of 2026, up from 61.8% in the previous quarter. (South African Reserve Bank)
Those national statistics don’t tell you whether your debt is affordable.
For that, we need to open your monthly budget and do the maths.
Quick Answer: How Much Debt Is Too Much?
You probably have too much debt when your required repayments and essential living expenses consume so much of your income that you can no longer comfortably meet both.
Warning signs include:
- regularly running out of money before payday;
- using credit for groceries and other routine essentials;
- taking new loans to repay existing debt;
- missing or paying accounts late;
- having almost nothing left after debit orders;
- relying on your overdraft every month;
- paying only minimum amounts on revolving credit;
- being unable to handle even a small emergency without borrowing;
- avoiding opening statements because you know you can’t pay them; or
- having total repayments that take an increasingly large portion of your take-home income.
The National Credit Regulator has described an over-indebted consumer as someone whose available income isn’t sufficient to cover both basic living expenses and debt obligations. (SAnews)
That’s more useful than chasing a magical percentage.
Your DTI is a warning indicator.
Your actual cash flow tells you whether you’re coping.
What Is a Debt-to-Income Ratio?
Your debt-to-income ratio compares your regular monthly debt repayments with your monthly income.
A simple formula is:
Monthly debt repayments ÷ monthly income × 100 = DTI
Suppose you take home R25,000 per month and pay:
- Vehicle finance: R4,500
- Personal loan: R2,000
- Credit card: R1,000
- Store account: R500
Total monthly debt repayments:
R8,000
Your simplified take-home-income DTI would be:
R8,000 ÷ R25,000 × 100 = 32%
That means approximately 32 cents of every rand of take-home income is already committed to debt repayments before you’ve paid rent, groceries, electricity, transport, insurance, school costs or anything else.
Visual example
Monthly take-home income: R25,000
Debt repayments R8,000 |█████████████ | 32%
Other income R17,000 |███████████████████████████ | 68%This is where DTI becomes useful.
It takes several different accounts and turns them into one understandable number.
Gross-Income DTI vs Take-Home-Income DTI
This distinction matters.
Different lenders and financial calculations may use different definitions. A conventional DTI calculation often uses gross monthly income, meaning income before tax and other deductions.
But when I’m assessing my own household budget, I find a take-home-income calculation more intuitive because that is the money actually available in the bank account.
Consider someone earning:
Gross salary: R30,000
Take-home pay: R24,000
Debt repayments: R8,000
Using gross income:
R8,000 ÷ R30,000 = 26.7%
Using take-home income:
R8,000 ÷ R24,000 = 33.3%
That’s a substantial difference.
Neither calculation should be presented as the one universal legal South African DTI test.
For this guide, when we use a household DTI example, we’ll clearly state when we’re dividing repayments by take-home income.
Is There a Legal Maximum DTI in South Africa?
This is where online advice often becomes misleading.
You will frequently see claims such as:
“Your debt ratio must be below 30%.”
or:
“Banks won’t approve you above 40%.”
Those can be useful rules of thumb in particular contexts, but they shouldn’t be mistaken for a single universal legal DTI ceiling applying identically to every South African consumer and every credit product.
South African affordability regulations take a broader approach.
When conducting an affordability assessment, a credit provider must calculate discretionary income and take into account monthly credit repayments reflected on the consumer’s credit profile, as well as maintenance obligations and necessary expenses. (Government of South Africa)
The NCR’s consumer material similarly explains that affordability assessments consider gross income, statutory deductions, minimum living expenses, other debt obligations and repayment history. (NCR)
That makes sense.
Two consumers can both have a 30% DTI and have completely different financial circumstances.
Why 30% Debt Can Be Fine for One Person and Dangerous for Another
Consider Sipho and Megan.
Both take home:
R30,000 per month
Both have debt repayments of:
R9,000 per month
Both therefore have a simplified take-home DTI of:
30%
Sounds identical.
It isn’t.
Sipho
Debt: R9,000
Rent: R5,000
Food: R3,500
Transport: R1,500
Utilities: R1,000
Insurance/phone: R1,500
Other essentials: R2,000
Total expenses including debt:
R23,500
Remaining:
R6,500
Megan
Debt: R9,000
Rent: R8,500
Food for family: R5,000
Transport: R2,500
Utilities: R1,800
Insurance/phone: R1,700
School/family expenses: R2,000
Total:
R30,500
Remaining:
−R500
Same salary.
Same debt ratio.
One has R6,500 left.
The other is already short.
That’s why DTI should never be viewed in isolation.
A Practical DTI Traffic-Light System
For personal budgeting, I like using ranges as warning zones rather than approval rules.
These aren’t legal thresholds and they don’t predict what a particular bank will approve.
| Take-home DTI | Practical interpretation |
|---|---|
| 0–15% | Generally light debt burden |
| 16–25% | Usually manageable if living costs are controlled |
| 26–35% | Pay attention; debt is taking a meaningful portion of income |
| 36–45% | High pressure; examine the budget carefully |
| 46–55% | Very high; financial flexibility may be severely limited |
| Above 55% | Serious warning zone for many households |
Again, these are Careertime budgeting bands, not official NCR limits.
Why am I deliberately cautious about calling 35% “safe”?
Because somebody earning R12,000 and supporting three people doesn’t have the same financial margin as somebody earning R80,000 with low housing costs.
A percentage is useful.
Rand left over after essentials is better.
What Debt Should You Include?
For a personal DTI exercise, include regular repayments associated with borrowing.
That might include:
- home loan;
- vehicle finance;
- personal loans;
- credit cards;
- overdraft repayments/charges where relevant to your calculation;
- store accounts;
- retail credit;
- furniture accounts;
- student loans;
- revolving credit;
- buy-now-pay-later commitments; and
- other formal credit agreements.
Be consistent.
If you’re comparing your ratio month to month, don’t include an account one month and exclude it the next simply because the number looks better.
What Isn’t Usually “Debt” — But Still Matters?
Expenses such as rent, food and electricity aren’t debts in the same sense as a personal loan.
But excluding them from DTI doesn’t mean they disappear.
Imagine:
Take-home income: R20,000
Debt repayments: R6,000
DTI:
30%
That looks reasonable at first glance.
But now add:
Rent: R7,000
Food: R3,500
Transport: R2,000
Utilities: R1,200
Insurance/phone: R800
That’s another:
R14,500
Total debt + essentials:
R6,000 + R14,500 = R20,500
You’re R500 short before buying anything discretionary.
This is why I recommend calculating two ratios.
The Two-Ratio Test
Ratio 1: Debt-to-Income
Debt repayments ÷ take-home income × 100.
Ratio 2: Committed-Income Ratio
Debt repayments + essential expenses ÷ take-home income × 100.
Let’s use our R20,000 example.
Debt = R6,000
Essentials = R14,500
DTI
R6,000 ÷ R20,000 × 100
= 30%
Committed-income ratio
R20,500 ÷ R20,000 × 100
= 102.5%
That second calculation immediately exposes the problem.
Take-home salary R20,000 |████████████████████|
Debt R6,000 |██████ | 30%
Essential living costs R14,500 |██████████████▌ | 72.5%
-------------------------
Total commitments R20,500 |████████████████████▌| 102.5%The household isn’t merely “a little tight.”
Its recurring commitments already exceed income.
South Africa’s Debt Picture
It helps to put personal finances into context.
The latest SARB quarterly data available while preparing this guide showed household debt equal to 62.2% of nominal disposable income in Q1 2026. (South African Reserve Bank)
Here’s how that measure recently moved:
| Period | Household debt / disposable income |
|---|---|
| Q4 2024 | 62.0% |
| Q1 2025 | 62.7% |
| Q2 2025 | 62.4% |
| Q3 2025 | about 61.5–61.6% |
| Q4 2025 | 61.8% |
| Q1 2026 | 62.2% |
SARB reported the quarterly movements across its bulletins. (South African Reserve Bank)
Household debt trend
Debt as % of disposable income
Q4 2024 62.0% |███████████████████████████████
Q1 2025 62.7% |███████████████████████████████▍
Q2 2025 62.4% |███████████████████████████████▏
Q3 2025 ~61.6% |██████████████████████████████▊
Q4 2025 61.8% |██████████████████████████████▉
Q1 2026 62.2% |███████████████████████████████Don’t confuse this SARB statistic with your personal DTI.
SARB’s figure measures household-sector debt relative to household disposable income at an aggregate national level. Your personal DTI in this article measures your own monthly repayments against income.
They answer different questions.
The Cost of Servicing South African Household Debt
Another useful SARB indicator is household debt-service cost relative to disposable income.
SARB describes debt-service cost as an indicator of households’ ability to service interest payments on debt and how much disposable income is diverted to servicing that debt. (South African Reserve Bank)
The ratio rose significantly during the higher-interest-rate period: SARB reported an increase from 6.7% in Q1 2022 to 8.8% in Q2 2023. (South African Reserve Bank)
More recently, it was 8.4% in Q1 2026. (South African Reserve Bank)
This demonstrates something important:
The amount you owe isn’t the only thing that matters. The cost of carrying that debt matters too.
How Much Debt Can Different Salaries Handle?
There is no correct answer based solely on salary.
But we can demonstrate what various DTI levels mean in rand.
Take-home income of R10,000
| DTI | Monthly debt repayments |
|---|---|
| 10% | R1,000 |
| 20% | R2,000 |
| 30% | R3,000 |
| 40% | R4,000 |
| 50% | R5,000 |
Take-home income of R20,000
| DTI | Monthly debt repayments |
|---|---|
| 10% | R2,000 |
| 20% | R4,000 |
| 30% | R6,000 |
| 40% | R8,000 |
| 50% | R10,000 |
Take-home income of R35,000
| DTI | Monthly debt repayments |
|---|---|
| 10% | R3,500 |
| 20% | R7,000 |
| 30% | R10,500 |
| 40% | R14,000 |
| 50% | R17,500 |
Take-home income of R50,000
| DTI | Monthly debt repayments |
|---|---|
| 10% | R5,000 |
| 20% | R10,000 |
| 30% | R15,000 |
| 40% | R20,000 |
| 50% | R25,000 |
Notice the problem with percentages again.
Thirty percent of R10,000 is R3,000, leaving R7,000 for everything else.
Thirty percent of R50,000 is R15,000, leaving R35,000.
Their living costs won’t necessarily scale proportionately.
Case Study 1: R15,000 Salary and “Small” Accounts Everywhere
Let’s look at a realistic fictional household.
Lerato’s take-home salary: R15,000
Her debts don’t look enormous individually:
Clothing account: R650
Furniture account: R850
Personal loan: R1,700
Credit card minimum: R600
Small short-term loan: R900
Total debt payments:
R4,700
DTI
R4,700 ÷ R15,000 × 100
= 31.3%
Not immediately catastrophic.
Now let’s open the rest of the budget.
Rent: R4,500
Transport: R1,800
Groceries: R2,500
Electricity: R800
Phone/data: R500
Family commitments: R700
Essential expenses:
R10,800
Debt + essentials:
R4,700 + R10,800 = R15,500
Monthly position:
−R500
What happens next?
The likely temptation is using the credit card for R500 of groceries.
Next month, the credit-card balance is higher.
Then another unexpected R700 expense appears.
She borrows R1,000.
Her problem isn’t that one account is huge.
It’s that too many small obligations have consumed the entire salary.
Lesson
Don’t assess accounts individually.
Ask:
What percentage of my salary is already promised before payday even arrives?
Case Study 2: R32,000 Salary With a Car and Personal Loan
Jason’s take-home income: R32,000
Debt:
Vehicle: R6,500
Personal loan: R3,200
Credit card: R1,200
Total:
R10,900
DTI:
R10,900 ÷ R32,000 × 100
= 34.1%
Now living costs:
Rent: R7,000
Food: R4,000
Fuel: R2,500
Insurance: R1,600
Utilities: R1,200
Phone/internet: R900
Essentials:
R17,200
Debt + essentials:
R28,100
Remaining:
R3,900
Committed-income ratio:
R28,100 ÷ R32,000 = 87.8%
Jason isn’t technically running at a monthly deficit.
But 87.8% of his take-home income is already committed.
The real test
His car needs tyres costing R6,000.
He doesn’t have R6,000.
That’s the warning.
A budget can be positive and still be financially fragile.
If Jason uses another loan to cover the tyres, his monthly debt burden increases again.
Lesson
“I have money left” isn’t the same as “I have enough financial margin.”
Case Study 3: R48,000 Household That Looks Heavily Indebted
Now consider a married household with combined take-home income of:
R48,000
Debt:
Home loan: R9,000
Vehicle: R4,500
Student loan: R1,500
Credit card: R1,000
Total:
R16,000
DTI:
33.3%
That sounds relatively high.
But examine their budget:
Debt: R16,000
Groceries: R5,500
Utilities: R2,000
Transport/fuel: R3,000
Insurance: R2,000
School/family: R3,000
Phone/internet: R1,000
Total commitments:
R32,500
Remaining:
R15,500
They also have:
- R60,000 in emergency savings;
- no short-term loans;
- credit-card balance paid aggressively;
- stable income; and
- monthly retirement contributions.
Compare this household with Lerato.
Lerato’s DTI was 31.3%.
This household’s DTI is 33.3%.
Yet the higher-DTI household is substantially more resilient.
Lesson
DTI measures debt load. It does not measure your entire financial health.
The Emergency Test: A Better Question Than DTI Alone
Try this tonight:
If I had an unexpected R5,000 expense tomorrow, how would I pay it?
Possible answers:
A. Emergency savings.
B. Cash remaining in my monthly budget.
C. Sell something.
D. Credit card.
E. Overdraft.
F. Personal loan.
G. Borrow from family.
If your only realistic answers are D, E or F, your financial position may be more fragile than your DTI suggests.
Try another question:
Could I survive one month without using new credit?
If the answer is no because credit is already paying for food, fuel or electricity, the problem isn’t simply “high debt.”
Your household has become dependent on borrowing for normal consumption.
Seven Warning Signs You May Already Have Too Much Debt
1. Payday doesn’t reset your finances
Your salary arrives and most of it disappears into debit orders immediately.
2. You’re borrowing for necessities
Groceries, electricity and transport repeatedly go onto credit.
3. You’re paying debt with debt
A new personal loan pays the credit card, which then funds living expenses again.
4. Minimum payments have become normal
You’re keeping accounts alive rather than reducing balances meaningfully.
5. You don’t know what you owe
If you can’t roughly state your total debt and monthly repayments, that’s worth fixing immediately.
6. A small emergency becomes a financial crisis
A R2,000–R5,000 expense requires another application.
7. You’re missing payments
This is one of the clearest warning signs that the current debt structure may no longer fit your income.
South Africa’s Credit Statistics Show Why This Matters
The NCR reported 29.24 million credit-active consumers at June 2025. (NCR)
Of those:
18.70 million — 63.95% — were in good standing.
Approximately:
10.54 million — 36.05% — had impaired records.
The NCR further reported that 22.46% of credit-active consumers were three months or more in arrears, while other impaired records included adverse listings and judgments/administration orders. (NCR)
Credit-active consumers
Total credit-active consumers 29.24m |█████████████████████████████|
Good standing 18.70m |██████████████████▋ | 63.95%
Impaired records 10.54m |██████████▌ | 36.05%These numbers shouldn’t be used to frighten people away from credit.
They show why affordability deserves serious attention.
Good Debt vs Bad Debt: It’s More Complicated Than That
You’ve probably heard:
“A home loan is good debt.”
“Credit cards are bad debt.”
Reality is more nuanced.
A home loan you can’t afford can destroy your budget.
A credit card paid in full and managed responsibly can be relatively harmless.
Instead of simply asking whether debt is “good” or “bad,” ask four questions:
What did I borrow for?
Was it an asset, genuine need or temporary lifestyle purchase?
What does it cost?
What’s the interest, fees and total repayment?
Can I afford it?
Not merely this month — throughout the term?
What financial value does it create?
A qualification that improves earning potential is fundamentally different from financing a weekend away for 24 months.
The Debt Snowball Problem
Debt often becomes dangerous because each new account reduces the money available to service existing accounts.
Imagine:
January
Income: R20,000
Debt: R4,000
Other expenses: R14,000
Remaining: R2,000
April
New store account repayment: R700
Remaining:
R1,300
July
Personal loan repayment: R900
Remaining:
R400
September
Unexpected expense: R2,500
There isn’t R2,500 available.
So another loan is taken.
New repayment: R600.
The budget is now:
−R200
Nothing dramatic happened in one month.
The problem developed R600–R900 at a time.
What to Do If Your DTI Is Too High
Don’t panic because a calculator produced 43%.
Use the number to make decisions.
Step 1: List every debt
Create a table.
| Account | Balance | Instalment | Rate | Remaining term |
|---|---|---|---|---|
| Car | ||||
| Personal loan | ||||
| Credit card | ||||
| Store account | ||||
| Other |
Fill in the actual numbers.
No estimates if you can obtain statements.
Step 2: Stop adding unnecessary debt
Reducing debt is extremely difficult if you’re simultaneously opening new accounts.
Step 3: Build a real monthly budget
Look at bank statements.
People commonly underestimate food, takeaways, subscriptions and small card purchases because each transaction seems insignificant.
Step 4: Find money to redirect
Even R500 matters.
R500 redirected to debt every month:
R6,000 per year
R1,000 per month:
R12,000 per year
R2,000 per month:
R24,000 per year
That’s before considering interest effects.
Snowball vs Avalanche
Two popular debt-repayment approaches are worth understanding.
Debt snowball
Pay minimum required amounts on debts while directing extra money toward the smallest balance first.
Once cleared, roll that payment into the next debt.
Advantage: quick psychological wins.
Debt avalanche
Direct extra money toward the debt with the highest interest cost first while maintaining required payments elsewhere.
Advantage: generally more mathematically efficient when interest rates differ.
Example
| Debt | Balance | Illustrative rate |
|---|---|---|
| Store account | R3,000 | 18% |
| Credit card | R12,000 | 22% |
| Personal loan | R20,000 | 17% |
Snowball starts with R3,000.
Avalanche starts with the 22% credit card.
Neither strategy works if required contractual payments are ignored, so make sure all accounts remain appropriately serviced.
Should You Consolidate Your Debt?
Debt consolidation can help, but the phrase sounds more magical than the actual mathematics.
Suppose you have:
Credit card: R15,000
Store accounts: R10,000
Personal loan: R25,000
Total:
R50,000
A new R50,000 loan settles everything.
You now have one payment instead of several.
That’s convenient.
But ask:
- Is the new interest rate lower?
- What are the fees?
- Is the repayment period longer?
- What’s the total repayment?
- Will the old accounts be closed or used again?
- Does the new instalment genuinely fit your budget?
South Africa’s affordability regulations specifically recognise substitutionary credit used to settle existing agreements and require practical steps to ensure the new credit is used for that purpose. (Government of South Africa)
Consolidation should reorganise debt.
It shouldn’t create room for another shopping spree.
When Debt Review May Be Worth Investigating
If you can no longer meet your normal living costs and contractual debt repayments, DIY budgeting may no longer be enough.
South Africa’s National Credit Act provides mechanisms for dealing with over-indebtedness and specifically provides for debt reorganisation. (Government of South Africa)
Debt counselling/debt review is intended to assist over-indebted consumers through a structured process. The NCR explains that registered debt counsellors can work on debt restructuring based on a consumer’s disposable income. (SAnews)
This is not something to enter casually.
Debt review has consequences and isn’t simply a way to erase debt.
Before entering any process:
- verify that the debt counsellor is registered with the NCR;
- understand the fees;
- understand restrictions while under debt review;
- get the process explained in writing; and
- don’t respond impulsively to unsolicited “debt write-off” advertising.
The National Credit Act regulates debt counselling services and establishes the NCR as the regulator. (Government of South Africa)
How to Reduce Your DTI
There are only two mathematical ways to reduce the ratio:
Reduce monthly debt repayments
or
Increase income without proportionately increasing debt.
For example:
Income = R20,000
Debt repayments = R8,000
DTI = 40%
You repay an account requiring R2,000 monthly.
New debt repayments = R6,000.
DTI:
R6,000 ÷ R20,000 = 30%
That’s a significant improvement without receiving a salary increase.
Alternatively:
Debt remains R8,000.
Income increases from R20,000 to R25,000.
New DTI:
R8,000 ÷ R25,000 = 32%
But beware of lifestyle inflation.
If income increases and you immediately finance a more expensive car, your financial position may barely improve.
Don’t Forget Your Emergency Fund
Paying debt aggressively is valuable, but leaving yourself with literally R0 in accessible savings can create another problem.
Imagine paying an extra R5,000 into debt today.
Next week your car requires a R4,000 repair.
You have no cash.
You borrow R4,000 again.
You’ve moved backwards.
For households without emergency savings, consider balancing debt reduction with building at least a starter cash buffer.
Even:
R500 × 6 months = R3,000
can prevent a small emergency from immediately becoming another credit application.
A 15-Minute Personal Debt Audit
You can do this tonight.
1. Write down take-home income
Example:
R28,000
2. Add every monthly debt repayment
Home/vehicle/personal loans/cards/store accounts/etc.
Example:
R9,500
3. Calculate DTI
R9,500 ÷ R28,000 × 100
= 33.9%
4. Add essential expenses
Suppose:
R14,000
5. Calculate total commitments
R9,500 + R14,000
= R23,500
6. Calculate remaining cash
R28,000 − R23,500
= R4,500
7. Stress-test it
Ask:
What happens if:
- electricity costs R500 more?
- fuel rises?
- school needs R1,000?
- the car needs a tyre?
- I lose overtime income?
- an insurance excess becomes payable?
If one ordinary surprise destroys the budget, start improving your financial buffer now rather than waiting for the surprise.
Debt Health Scorecard
Use this as a practical self-check.
| Question | Healthy sign | Warning sign |
|---|---|---|
| Do I pay accounts on time? | Yes | Regularly late |
| Do I use debt for groceries? | Rarely/never | Every month |
| Emergency savings? | Available | None |
| Can I state what I owe? | Yes | No idea |
| New loans paying old debt? | No | Regularly |
| Money after essentials? | Comfortable buffer | Almost zero |
| Credit-card balance? | Controlled/reducing | Growing |
| Unexpected R3,000 expense? | Manageable | Requires new loan |
| Debt trend? | Falling | Increasing |
| Repayment stress? | Low/manageable | Constant |
One warning sign isn’t proof you’re over-indebted.
Five or six at the same time deserve attention.
Why “I Qualify” Doesn’t Mean “I Can Afford It”
This is perhaps the most important lesson in the entire guide.
A lender’s affordability assessment and your personal comfort level aren’t identical.
South African regulations require credit providers to consider discretionary income, existing debt obligations and necessary expenses as part of affordability assessments. (Government of South Africa)
But you know things a standard application may not fully capture in the way you personally experience them.
Maybe your child will start university next year.
Maybe your car is approaching an expensive maintenance period.
Maybe your household relies heavily on overtime.
Maybe you’re planning maternity leave.
Maybe your rent increases soon.
So if a lender says:
“You qualify for R100,000.”
that does not mean:
“Borrowing R100,000 is a good financial decision.”
Approval is permission.
It isn’t financial advice.
Frequently Asked Questions
What is a good debt-to-income ratio in South Africa?
There isn’t one universal DTI percentage that guarantees a South African consumer is financially healthy or will qualify for credit. For personal budgeting, lower is generally more comfortable, but essential living costs and remaining disposable income must also be considered.
Is 30% DTI too high?
Not automatically.
Someone with a 30% DTI and substantial disposable income may be comfortable, while another person with the same ratio could already be struggling because of high rent, food, transport and dependant costs.
Is 40% DTI too high?
A 40% take-home-income DTI is a meaningful warning sign in a household budget because R4 of every R10 is going to debt repayments before other expenses. It doesn’t automatically mean you’re legally over-indebted, but your full cash flow deserves careful examination.
How do I calculate my DTI?
Add your monthly debt repayments, divide by the income figure you’re using and multiply by 100.
For example:
R7,500 repayments ÷ R25,000 take-home income × 100 = 30%.
Does rent count as debt?
Ordinary monthly rent isn’t normally treated as a credit repayment in a basic DTI calculation, but it absolutely matters when assessing affordability. That’s why this guide recommends calculating a separate committed-income ratio.
Does a home loan count?
Yes. A mortgage is debt and its monthly repayment should be included when you’re assessing your overall debt burden.
Does vehicle finance count?
Yes.
Should I include my credit card?
Yes. Use a consistent repayment figure appropriate to your budgeting exercise and remember that paying only the minimum can keep revolving debt around for a long time.
Does South Africa have a legal maximum DTI?
South African affordability rules are more comprehensive than one universal DTI cutoff. Credit providers must consider factors including income, statutory deductions, minimum living expenses, existing debt obligations and repayment history. (Government of South Africa)
How do I know if I’m over-indebted?
A major practical warning is when available income isn’t sufficient to meet basic living expenses and debt obligations. The NCR describes over-indebtedness in these terms. (SAnews)
Can debt consolidation lower my DTI?
It can reduce monthly required repayments if existing debts are replaced with a different repayment structure. But a lower monthly payment can come from extending the term, potentially increasing total borrowing costs. Compare the full numbers.
Should I take another loan to pay my debts?
Be extremely careful. Replacing expensive debt with genuinely cheaper, affordable credit can sometimes form part of a consolidation strategy. Continually borrowing simply to make existing monthly repayments can instead deepen the debt cycle.
What if I can’t afford my debts anymore?
Contact credit providers early and consider getting appropriate professional assistance. If you’re potentially over-indebted, information about debt counselling should be obtained from the National Credit Regulator and NCR-registered debt counsellors rather than unverified social-media advertisers.
Final Thoughts: The Number That Matters Most Isn’t Your DTI
Debt-to-income ratio is useful because it gives you something concrete.
Instead of saying:
“I’ve got quite a lot of accounts.”
you can say:
“34% of my take-home income is currently going toward debt repayments.”
That’s actionable.
But after working through all the examples in this guide, there’s another number I’d pay even more attention to:
How many rand are left after debt and essential living costs?
Someone earning R15,000 with a 25% DTI can be in more financial trouble than someone earning R50,000 with a 35% DTI.
That’s why responsible debt management requires more than a percentage.
Look at:
Income.
Debt repayments.
Living costs.
Emergency savings.
Credit history.
Remaining disposable income.
And the direction your debt is moving.
South Africa’s broader statistics show why this matters. Household debt was equivalent to 62.2% of disposable income in Q1 2026, while the NCR’s latest Credit Bureau Monitor available for this analysis recorded 10.54 million credit-active consumers with impaired records at June 2025. (South African Reserve Bank)
But you’re not a national statistic.
Your financial health is determined by what happens inside your own budget after payday.
If your salary covers your debt, your essential expenses, some savings and life’s inevitable surprises without needing another loan every month, your debt may be manageable.
If every rand is already spoken for, credit is paying for groceries and one unexpected expense sends you looking for another loan, the warning signs are already there — regardless of whether an online calculator calls your DTI 25%, 35% or 45%.
The purpose of debt should be to help you accomplish something that makes financial sense.
It shouldn’t leave you working every month simply to service yesterday’s spending.
So calculate your DTI.
But don’t stop there.
Calculate your life-after-debt number too:
Take-home income − debt repayments − essential expenses = your real monthly breathing room.
If that number keeps approaching zero, don’t wait for missed payments to tell you that something needs to change.
Important Consumer Disclaimer
This article provides general educational information and does not constitute personalised financial, legal or debt-counselling advice. The DTI ranges used in this guide are illustrative Careertime budgeting indicators and are not official lending thresholds, NCR limits or guarantees of credit approval. Individual affordability depends on income, expenses, existing obligations, household circumstances and other factors. If you’re struggling to meet your debt obligations, consider contacting your credit providers and obtaining information from the National Credit Regulator or an appropriately registered debt counsellor.
