How Much Retirement Savings Do You Need? Full Simulation

Calculate how much you need to save monthly for a comfortable retirement in Indonesia. Spoiler: BPJS alone won't be enough.

Published: February 14, 2026 • Last reviewed: February 15, 2026

Note: This article discusses Indonesian financial products and regulations. The underlying investment principles apply globally, though specific programs like BPJS and tax treatments vary by country.

How Much Should I Save for Retirement?

This is a question most Indonesians avoid. But let’s face it honestly: BPJS Ketenagakerjaan (Indonesia’s social security program) alone will not be enough for a decent retirement. You need to save and invest your own money through proper asset allocation and a comprehensive investment strategy.

How much? Let’s do the math.

The Reality of BPJS Ketenagakerjaan

BPJS Ketenagakerjaan (Indonesia’s Workers Social Security) has two retirement programs:

JHT (Jaminan Hari Tua — Old Age Security)

Contribution: 5.7% of salary¹ (3.7% employer + 2% employee)
Withdrawn at age 56 or upon leaving employment
Given as lump sum
Not a monthly pension — this is basically savings with low returns

JP (Jaminan Pensiun — Pension Security)

Contribution: 3% of salary¹ (2% employer + 1% employee)
Given monthly starting at age 58
Maximum pension benefit (2025): approximately IDR 4.4 million per month

IDR 4.4 million per month. In Jakarta, this is enough for simple boarding house rent and daily meals — but not a comfortable retirement.

Complete BPJS Simulation

Assumptions: IDR 10 million monthly salary, working for 30 years.

Program	Estimated Total Accumulation	Form
JHT	~IDR 300-400 million	Lump sum at age 56
JP	~IDR 3-4.4 million/month	Monthly starting age 58

IDR 400 million sounds like a lot? With 5% annual inflation, IDR 400 million 30 years from now equals the purchasing power of IDR 93 million today. That’s enough to live for about 1-2 years.

How Much Do You Need for Retirement?

The 4% Rule Method (Adjusted for Indonesia)

The “4% Rule” from the Trinity Study (US, 1998)² states you can withdraw 4% from your portfolio annually without running out of money for 30 years. For Indonesia, due to higher inflation and different historical returns, we use a more conservative figure: 3.5%.

Formula:

Required retirement fund = Annual retirement expenses ÷ 3.5%

What Are Retirement Expenses?

Generally, retirement expenses are about 70-80% of working expenses (no commuting costs, work clothes, etc. — but healthcare costs increase).

Current Monthly Expenses	Retirement Expenses (75%)	Per Year	Required Fund (÷3.5%)
IDR 5 million	IDR 3.75 million	IDR 45 million	IDR 1.29 billion
IDR 10 million	IDR 7.5 million	IDR 90 million	IDR 2.57 billion
IDR 15 million	IDR 11.25 million	IDR 135 million	IDR 3.86 billion
IDR 20 million	IDR 15 million	IDR 180 million	IDR 5.14 billion
IDR 30 million	IDR 22.5 million	IDR 270 million	IDR 7.71 billion

Important: These figures are in today’s Rupiah values. Due to inflation, nominal amounts when you retire will be much larger — but purchasing power will be equivalent.

How Much Should You Save Each Month?

Now for the key question. Based on assumptions:

Investment return: 10% per year (JCI long-term average)
Inflation: 5% per year
Real return: ~5% per year

Required Monthly Savings Table:

Target: IDR 2.57 billion (retirement expenses of IDR 7.5 million/month in today’s value)

Starting Age	Years to Retirement (Age 55)	Monthly Savings*
25 years	30 years	IDR 2,900,000
30 years	25 years	IDR 4,000,000
35 years	20 years	IDR 5,800,000
40 years	15 years	IDR 9,000,000
45 years	10 years	IDR 16,000,000

*In today’s Rupiah value, assuming savings increase with inflation each year.

Key message: The younger you start, the less you need to save each month. Delaying 5 years can increase required monthly savings by 40-80%.

20-Year Retirement Savings Simulation

Let’s look at a concrete scenario: You’re 35 years old, want to retire at 55. What results from various monthly savings levels?

Assumption: Investing in equity index funds with average 10% annual return.

Scenario A: IDR 2 million per month savings

Year	Total Deposits	Portfolio Value	Gains
5	IDR 120 million	IDR 155 million	IDR 35 million (23%)
10	IDR 240 million	IDR 410 million	IDR 170 million (41%)
15	IDR 360 million	IDR 834 million	IDR 474 million (57%)
20	IDR 480 million	IDR 1.52 billion	IDR 1.04 billion (68%)

With IDR 2 million per month for 20 years, you’ll have IDR 1.52 billion at retirement. Enough for IDR 4.4 million monthly expenses (using 3.5% safe withdrawal rate).

Scenario B: IDR 4 million per month savings

Year	Total Deposits	Portfolio Value	Gains
5	IDR 240 million	IDR 309 million	IDR 69 million (22%)
10	IDR 480 million	IDR 819 million	IDR 339 million (41%)
15	IDR 720 million	IDR 1.67 billion	IDR 950 million (57%)
20	IDR 960 million	IDR 3.04 billion	IDR 2.08 billion (68%)

With IDR 4 million per month, you’ll have IDR 3.04 billion — enough for IDR 8.8 million monthly expenses at retirement.

Scenario C: IDR 6 million per month savings

Year	Total Deposits	Portfolio Value	Gains
5	IDR 360 million	IDR 464 million	IDR 104 million (22%)
10	IDR 720 million	IDR 1.23 billion	IDR 510 million (41%)
15	IDR 1.08 billion	IDR 2.51 billion	IDR 1.43 billion (57%)
20	IDR 1.44 billion	IDR 4.56 billion	IDR 3.12 billion (68%)

With IDR 6 million per month, you reach IDR 4.56 billion — enough for IDR 13 million monthly expenses at retirement.

Quick Comparison (Age 35, Target Retirement 55)

Monthly Savings	Total Deposits (20 Years)	Value at Retirement	Safe Withdrawal (3.5%/year)
IDR 1 million	IDR 240 million	IDR 760 million	IDR 2.2 million/month
IDR 2 million	IDR 480 million	IDR 1.52 billion	IDR 4.4 million/month
IDR 3 million	IDR 720 million	IDR 2.28 billion	IDR 6.6 million/month
IDR 4 million	IDR 960 million	IDR 3.04 billion	IDR 8.8 million/month
IDR 5 million	IDR 1.2 billion	IDR 3.80 billion	IDR 11 million/month
IDR 6 million	IDR 1.44 billion	IDR 4.56 billion	IDR 13.2 million/month

20-year simulation conclusions:

Every additional IDR 1 million in monthly savings = additional IDR 760 million at retirement
68% of final value comes from compound interest, not your deposits
For comfortable retirement (IDR 7.5 million/month expenses), you need about IDR 3-4 million/month savings if starting at age 35

This simulation doesn’t factor in inflation in nominal figures — meaning the “IDR 4.56 billion” value above is already in today’s purchasing power (real terms). Nominal amounts at retirement will be larger, but you’ll also save more as salary increases due to inflation.

The Power of Compound Interest

Albert Einstein (perhaps) never actually called it “the eighth wonder of the world,” but compound interest is indeed remarkable.

Example: IDR 3 million per month for 30 years

Year	Total Deposits	Portfolio Value (10%/year return)	From Compound Interest
5	IDR 180 million	IDR 232 million	IDR 52 million (22%)
10	IDR 360 million	IDR 614 million	IDR 254 million (41%)
20	IDR 720 million	IDR 2.28 billion	IDR 1.56 billion (68%)
30	IDR 1.08 billion	IDR 6.57 billion	IDR 5.49 billion (84%)

After 30 years, 84% of your wealth comes from compound interest, not from money you deposited. Money working for you.

But this only happens if you start early and stay consistent.

What If I Can’t Save That Much?

It’s very understandable if the numbers above feel overwhelming. Some strategies:

1. Start with what you can, increase gradually

Can’t do IDR 3 million? Start with IDR 500,000. What matters is starting. Increase every time your salary increases.

2. Follow a modified “50/30/20” rule

Category	Percentage of Salary
Needs (rent, food, transportation)	50%
Wants (entertainment, dining out)	30%
Savings & investments	20%

If salary is IDR 10 million → minimum IDR 2 million per month for investing. Ideally increase to 25-30% as salary grows.

3. Count JHT and JP as part of retirement funds

BPJS is indeed not enough, but it’s not zero. JHT + JP can cover part of your needs. Calculate the shortfall, then save the rest.

4. Increase income

This is often overlooked: the fastest way to increase savings is to increase income, not reduce expenses. Negotiate salary, take side projects, or develop high-value skills.

Where to Put Retirement Savings?

Time Until Retirement	Suggested Allocation
>20 years	80% equity index funds, 20% bonds/SBN
10-20 years	60% stocks, 30% bonds, 10% money market
5-10 years	40% stocks, 40% bonds, 20% money market
<5 years	20% stocks, 40% bonds, 40% money market

The closer to retirement, the more you shift from stocks to more stable instruments. This protects your portfolio from major declines right when you need the money.

DPLK: An Additional Option

DPLK (Dana Pensiun Lembaga Keuangan — Financial Institution Pension Fund) is a voluntary pension program available from banks and insurance companies in Indonesia:

Salary contributions (can be automatically deducted)
Investment choices (usually conservative, moderate, aggressive)
Tax benefit: contributions can reduce taxable income

Some popular DPLKs:

DPLK BRI
DPLK Manulife
DPLK AXA Mandiri
DPLK BNI

DPLK can be a good complement, especially due to tax deductions. But check the expense ratios — some DPLKs charge high fees.

Don’t Delay: The Price of Procrastination

Simple example. Two people, both retiring at age 55, investing IDR 2 million per month in index funds (10%/year return):

	Andi (starts at 25)	Budi (starts at 35)
Investment period	30 years	20 years
Total deposits	IDR 720 million	IDR 480 million
Value at retirement	IDR 4.38 billion	IDR 1.52 billion

Andi deposits IDR 240 million more than Budi, but his final value is IDR 2.86 billion larger. That’s the power of 10 extra years of compound interest.

The best time to start saving for retirement was 10 years ago. The second best time is today.

Action Summary

Step	Action
1	Calculate your current monthly expenses
2	Multiply by 75% → estimated retirement expenses
3	Multiply by 12, then divide by 3.5% → retirement fund target
4	Use the tables above → determine monthly savings
5	Open an account and start regular investing
6	Increase investment amount every time salary increases
7	Don’t touch it until retirement

BPJS is the ground floor. Independent investing is what builds the house on top. Start now.

💡 Calculate your retirement needs: Use our Retirement Calculator to calculate how much you need and how much you should save each month — including JHT and JP simulations from BPJS.

Disclaimer: This article is for education only, not investment advice. The figures above are estimates based on historical assumptions and may differ from actual results.

BPJS Ketenagakerjaan. “Berapa Besaran Iuran JHT, JKK, JKM, JP dan JKP?” ↩ ↩²
Trinity Study (Cooley, Hubbard, Walz, 1998). Research on safe withdrawal rates for retirement. Assumptions: 50-75% stock portfolio, 25-50% bonds. Full version available in various academic sources. ↩

Disclaimer: This article is for educational purposes only and does not constitute investment advice. Always do your own research and consult with a licensed financial advisor before making investment decisions.