3 Bucket Retirement Strategy Calculator
Safety for the next few years, Stability for the years after, Growth for the rest — and a market crash to test the plan against, year by year.
Your Retirement Plan
Your Three Buckets
Bucket 1
Safety Bucket
$1,260,000
8.4% of corpus
Holds the next 3 years of expenses in cash-like investments. Every monthly withdrawal comes from here.
Bucket 2
Stability Bucket
$2,940,000
19.6% of corpus
Holds years 4–10 of expenses in moderate-risk investments. It refills the Safety Bucket every year, and carries you through bad markets.
Bucket 3
Growth Bucket
$10,800,000
72.0% of corpus
Everything else, invested in equity for long-term growth. It tops up the Stability Bucket only after a good year, so it never has to sell in a falling market.
Market & Rebalancing
A good year is one where the market is back at (or above) its previous high. After a crash, the Growth Bucket is left alone until it has fully recovered, so the Stability Bucket has to last longer.
Crash 1
Equity falls 30% in the year you turn 40, then earns about 12.6% a year for 3 years to get back to where it was.
Crash 2
Equity falls 40% in the year you turn 55, then earns about 13.6% a year for 4 years to get back to where it was.
A crash that starts while the market is still recovering replaces the rest of that recovery.
Your money lasts till age 95
You'll still have $113,936,774 left at age 95, worth about $4,622,121 at retirement-day prices.
No forced sales. The Stability Bucket carried you through 7 bad years without selling any equity in a down market.
Plan funded
103%
Corpus needed for no shortfall
$14,521,982
$478,018 extra buffer
Max monthly expense you can afford
$36,152
at retirement-day prices
Monthly expense at age 40
$35,000
Monthly expense at age 94
$813,926
Total withdrawn
$165,552,251
Bad years (Growth left alone)
7
Final balance
$113,936,774
Total returns earned: $264,489,025
Bucket Time Machine
Press play or drag the slider to watch money cascade from Growth to Stability to Safety — and see what happens when the market crashes.
Day one
Age 40
Safety Bucket
$1,260,000
Stability Bucket
$2,940,000
Growth Bucket
$10,800,000
Total
$15,000,000
Your $15,000,000 corpus is split: $1,260,000 goes into the Safety Bucket, $2,940,000 into the Stability Bucket and $10,800,000 into the Growth Bucket.
Year-by-Year Projection
Shaded years are when the market is below its previous high. Click a point on the chart or a row in the table to jump the Time Machine to that year.
| Age | Equity Return | Monthly Expense | Withdrawn (Year) | Moved at Rebalance | Safety | Stability | Growth | Total |
|---|---|---|---|---|---|---|---|---|
40Crash | -30.0%Bad year | $35,000 | $420,000 | $431,789 | $1,335,600 | $2,752,229 | $7,560,000 | $11,647,829 |
41 | +12.6%Bad year | $37,100 | $445,200 | $457,697 | $1,415,736 | $2,522,966 | $8,514,434 | $12,453,136 |
42 | +12.6%Bad year | $39,326 | $471,912 | $485,159 | $1,500,680 | $2,247,213 | $9,589,363 | $13,337,256 |
43 | +12.6%Good year | $41,686 | $500,227 | $1,792,220$514,268 | $1,590,721 | $3,711,682 | $9,007,780 | $14,310,183 |
44 | +12.7%Good year | $44,187 | $530,240 | $459,757$545,124 | $1,686,164 | $3,934,383 | $9,690,434 | $15,310,982 |
45 | +12.7%Good year | $46,838 | $562,055 | $487,343$577,832 | $1,787,334 | $4,170,446 | $10,432,081 | $16,389,862 |
46 | +12.7%Good year | $49,648 | $595,778 | $516,583$612,501 | $1,894,574 | $4,420,673 | $11,238,547 | $17,553,794 |
47 | +12.7%Good year | $52,627 | $631,525 | $547,578$649,252 | $2,008,249 | $4,685,913 | $12,116,298 | $18,810,460 |
48 | +12.7%Good year | $55,785 | $669,416 | $580,433$688,207 | $2,128,743 | $4,967,068 | $13,072,515 | $20,168,327 |
49 | +12.7%Good year | $59,132 | $709,581 | $615,259$729,499 | $2,256,468 | $5,265,092 | $14,115,178 | $21,636,738 |
50 | +12.7%Good year | $62,680 | $752,156 | $652,174$773,269 | $2,391,856 | $5,580,998 | $15,253,162 | $23,226,015 |
51 | +12.7%Good year | $66,440 | $797,285 | $691,305$819,665 | $2,535,368 | $5,915,858 | $16,496,339 | $24,947,564 |
52 | +12.7%Good year | $70,427 | $845,123 | $732,783$868,845 | $2,687,490 | $6,270,809 | $17,855,705 | $26,814,003 |
53 | +12.7%Good year | $74,652 | $895,830 | $776,750$920,976 | $2,848,739 | $6,647,058 | $19,343,505 | $28,839,301 |
54 | +12.7%Good year | $79,132 | $949,580 | $823,355$976,234 | $3,019,663 | $7,045,881 | $20,973,390 | $31,038,935 |
55Crash | -40.0%Bad year | $83,880 | $1,006,554 | $1,034,808 | $3,200,843 | $6,595,877 | $12,584,034 | $22,380,755 |
56 | +13.6%Bad year | $88,912 | $1,066,948 | $1,096,897 | $3,392,894 | $6,046,435 | $14,298,223 | $23,737,552 |
57 | +13.6%Bad year | $94,247 | $1,130,965 | $1,162,711 | $3,596,467 | $5,385,576 | $16,245,918 | $25,227,961 |
58 | +13.6%Bad year | $99,902 | $1,198,822 | $1,232,473 | $3,812,255 | $4,600,102 | $18,458,927 | $26,871,285 |
59 | +13.6%Good year | $105,896 | $1,270,752 | $5,753,491$1,306,422 | $4,040,991 | $9,428,978 | $15,219,899 | $28,689,868 |
60 | +12.7%Good year | $112,250 | $1,346,997 | $1,167,945$1,384,807 | $4,283,450 | $9,994,717 | $15,982,218 | $30,260,385 |
61 | +12.7%Good year | $118,985 | $1,427,817 | $1,238,022$1,467,895 | $4,540,457 | $10,594,400 | $16,771,141 | $31,905,998 |
62 | +12.7%Good year | $126,124 | $1,513,486 | $1,312,303$1,555,969 | $4,812,885 | $11,230,064 | $17,585,839 | $33,628,787 |
63 | +12.7%Good year | $133,691 | $1,604,295 | $1,391,041$1,649,327 | $5,101,658 | $11,903,868 | $18,425,122 | $35,430,647 |
64 | +12.7%Good year | $141,713 | $1,700,553 | $1,474,504$1,748,287 | $5,407,757 | $12,618,100 | $19,287,385 | $37,313,242 |
65 | +12.7%Good year | $150,215 | $1,802,586 | $1,562,974$1,853,184 | $5,732,223 | $13,375,186 | $20,170,534 | $39,277,942 |
66 | +12.7%Good year | $159,228 | $1,910,741 | $1,656,752$1,964,375 | $6,076,156 | $14,177,697 | $21,071,910 | $41,325,763 |
67 | +12.7%Good year | $168,782 | $2,025,385 | $1,756,158$2,082,238 | $6,440,725 | $15,028,359 | $21,988,198 | $43,457,282 |
68 | +12.7%Good year | $178,909 | $2,146,908 | $1,861,527$2,207,172 | $6,827,169 | $15,930,060 | $22,915,324 | $45,672,554 |
69 | +12.7%Good year | $189,644 | $2,275,723 | $1,973,219$2,339,602 | $7,236,799 | $16,885,864 | $23,848,342 | $47,971,005 |
70 | +12.7%Good year | $201,022 | $2,412,266 | $2,091,612$2,479,978 | $7,671,007 | $17,899,016 | $24,781,297 | $50,351,320 |
71 | +12.7%Good year | $213,084 | $2,557,002 | $2,217,109$2,628,777 | $8,131,267 | $18,972,957 | $25,707,078 | $52,811,302 |
72 | +12.7%Good year | $225,869 | $2,710,422 | $2,350,135$2,786,504 | $8,619,143 | $20,111,334 | $26,617,243 | $55,347,721 |
73 | +12.7%Good year | $239,421 | $2,873,048 | $2,491,143$2,953,694 | $9,136,292 | $21,318,014 | $27,501,833 | $57,956,139 |
74 | +12.7%Good year | $253,786 | $3,045,431 | $2,640,612$3,130,916 | $9,684,469 | $22,597,095 | $28,349,142 | $60,630,706 |
75 | +12.7%Good year | $269,013 | $3,228,156 | $2,799,048$3,318,771 | $10,265,538 | $23,952,921 | $29,145,474 | $63,363,933 |
76 | +12.7%Good year | $285,154 | $3,421,846 | $2,966,991$3,517,897 | $10,881,470 | $25,390,096 | $29,874,858 | $66,146,424 |
77 | +12.7%Good year | $302,263 | $3,627,157 | $3,145,011$3,728,971 | $11,534,358 | $26,913,502 | $30,518,727 | $68,966,587 |
78 | +12.7%Good year | $320,399 | $3,844,786 | $3,333,712$3,952,709 | $12,226,419 | $28,528,312 | $31,055,554 | $71,810,286 |
79 | +12.7%Good year | $339,623 | $4,075,473 | $3,533,734$4,189,871 | $12,960,005 | $30,240,011 | $31,460,442 | $74,660,457 |
80 | +12.7%Good year | $360,000 | $4,320,002 | $3,745,758$4,441,264 | $13,737,605 | $32,054,411 | $31,704,655 | $77,496,671 |
81 | +12.7%Good year | $381,600 | $4,579,202 | $3,970,504$4,707,739 | $14,561,861 | $33,977,676 | $31,755,095 | $80,294,632 |
82 | +12.7%Good year | $404,496 | $4,853,954 | $4,208,734$4,990,204 | $15,435,573 | $36,016,337 | $31,573,702 | $83,025,611 |
83 | +12.7%Good year | $428,766 | $5,145,191 | $4,461,258$5,289,616 | $16,361,707 | $38,177,317 | $31,116,780 | $85,655,804 |
84 | +12.7%Good year | $454,492 | $5,453,902 | $4,728,934$5,606,993 | $17,343,410 | $40,467,956 | $30,334,233 | $88,145,598 |
85 | +12.7%Good year | $481,761 | $5,781,137 | $1,115,335$5,943,413 | $18,384,014 | $36,768,028 | $35,296,708 | $90,448,751 |
86 | +12.7%Good year | $510,667 | $6,128,005 | $1,041,314$6,300,017 | $19,487,055 | $32,478,425 | $40,814,528 | $92,780,008 |
87 | +12.7%Good year | $541,307 | $6,495,685 | $954,396$6,678,018 | $20,656,278 | $27,541,705 | $46,945,227 | $95,143,210 |
88 | +12.7%Good year | $573,786 | $6,885,426 | $853,298$7,078,699 | $21,895,655 | $21,895,655 | $53,752,355 | $97,543,665 |
89 | +12.7%Good year | $608,213 | $7,298,552 | $736,633$7,503,421 | $23,209,394 | $15,472,930 | $61,306,132 | $99,988,456 |
90 | +12.7%Good year | $644,705 | $7,736,465 | $602,896$7,953,627 | $24,601,958 | $8,200,653 | $69,684,180 | $102,486,790 |
91 | +12.7%Good year | $683,388 | $8,200,653 | $450,459$8,430,844 | $26,078,076 | $0 | $78,972,336 | $105,050,412 |
92 | +12.7%Good year | $724,391 | $8,692,692 | $277,558$277,558 | $18,428,507 | $0 | $89,265,564 | $107,694,070 |
93 | +12.7%Good year | $767,854 | $9,214,253 | $278,752$278,752 | $9,767,109 | $0 | $100,865,424 | $110,632,532 |
94 | +12.7%Good year | $813,926 | $9,767,109 | — | $279,090 | $0 | $113,657,684 | $113,936,774 |
Frequently Asked Questions
1What is the 3 bucket (three-bucket) retirement strategy?
It splits your retirement money by when you'll need it. The Safety Bucket holds the next 1 to 3 years of expenses in cash-like investments, and you withdraw from it every month. The Stability Bucket holds the next few years after that in moderate-risk investments such as debt or hybrid funds. The Growth Bucket holds everything else in equity. Money flows down from Growth to Stability to Safety as the years go by.
2How does rebalancing work in this calculator?
Once a year, the Stability Bucket tops the Safety Bucket back up to its target. Then, only if the market had a good year, the Growth Bucket tops the Stability Bucket back up. If the market had a bad year, the Growth Bucket is left alone to recover and the Stability Bucket keeps paying for the Safety Bucket on its own. Any bucket that has grown past its target sends the extra to the next riskier bucket.
3What is a forced sale?
If markets stay down for longer than the Stability Bucket can last, the Safety Bucket still needs money, so equity has to be sold even though prices are low. That's a forced sale, and it's exactly what the strategy is designed to avoid. If you see one, try adding more years to the Stability Bucket or test a shorter recovery.
4Which rebalance rule should I choose?
"Last year was positive" starts refilling from the Growth Bucket as soon as equity has an up year, which keeps the Stability Bucket fuller but sells some equity before it has fully recovered. "Market is back at its peak" waits until equity is back at its old high, which protects the Growth Bucket better but drains the Stability Bucket for longer. Try both with the same crash and compare the results.
5Why test a crash right at retirement?
It's the worst case, known as sequence-of-returns risk. When the market falls early, your Growth Bucket is at its largest and you still have decades of withdrawals ahead. The same crash 15 years later usually does much less damage. Move the crash age to see the difference.
6Can I test more than one market crash?
Yes. Add up to five crashes, each with its own age, fall and recovery time. Back-to-back crashes are the real test of the Stability Bucket: if a second crash hits before the first has fully recovered, the Growth Bucket stays below its old high for longer, and the Stability Bucket may run out before it can be refilled.
7How many years should each bucket hold?
A common split is 1 to 3 years in the Safety Bucket and 3 to 7 years in the Stability Bucket. Together they should cover a typical market downturn and its recovery. More years mean fewer forced sales but a smaller Growth Bucket and lower long-term returns.
83 bucket vs 2 bucket strategy: what's the difference?
The 2 bucket strategy refills the Safety Bucket straight from the Growth Bucket on a fixed schedule, whatever the market is doing. The 3 bucket strategy puts a Stability Bucket in between, so equity is only sold after good years and bad years are covered by the middle bucket. It takes a little more tracking, but it handles market crashes better. Try SIPCafe's 2 Bucket Strategy calculator with the same corpus to compare.
9Are the returns in this calculator guaranteed?
No. Each bucket uses a fixed yearly return, and the crash scenario is one simple what-if, not a forecast. Real markets can fall more than once and recover faster or slower. Treat the results as a planning guide, not a promise.
How the Numbers Are Calculated
The plan is simulated month by month from your retirement age to your Withdraw Till age. The monthly expense you enter is used for the first year of retirement, then grows by the inflation rate once every year.
On day one, the Safety Bucket gets your monthly expense × 12 × N1 (N1 = its Expenses Covered), the Stability Bucket gets the next monthly expense × 12 × N2, and everything left goes into the Growth Bucket. Targets are not pre-inflated, because each bucket keeps earning its own return while it pays out. Near the end of the plan, targets never cover more years than are left.
At the end of every year, both targets are reset using the coming year's expense. First the Stability Bucket tops the Safety Bucket up to its target. Then the market is judged on the year that just ended: after a good year the Growth Bucket tops the Stability Bucket up to its target (or takes back anything above it); after a bad year the Growth Bucket is left alone to recover. If the Stability Bucket can't fully refill the Safety Bucket, the gap is taken from the Growth Bucket — a forced sale if the year was bad.
Each month, that month's expense is paid from the Safety Bucket, then the Stability Bucket, then the Growth Bucket, in that order. After that, every bucket grows at its own monthly rate. In the crash scenario, the Growth Bucket loses the crash percentage over the crash year, then earns the same return in each recovery year so that it gets back to its pre-crash level.
Monthly expense in year y
E(y) = Monthly expense at retirement × (1 + Inflation)^y
Bucket targets at each yearly rebalance
Safety = E(y) × 12 × N1, Stability = E(y) × 12 × N2
Good year
This year's equity return ≥ 0% or Market index ≥ its previous high
Recovery-year equity return
r = (1 ÷ (1 − Crash %))^(1 ÷ Recovery years) − 1
Each month, for each bucket
Balance = (Balance − Withdrawal) × (1 + Monthly return)
- The Safety and Stability Buckets compound at their annual return ÷ 12 each month. In normal years the Growth Bucket does the same; in crash and recovery years its monthly rate is set so the whole year's return is exactly the crash or recovery figure.
- With several crashes, they are applied in age order. A crash that starts during an earlier recovery replaces the rest of it, and its own recovery only climbs back to where the market stood just before it — so the market can stay below its older high for years longer.
- The market index starts at 1 and follows the Growth Bucket's yearly returns. The 'back at its peak' rule compares it with its highest level so far, not with the bucket's balance, because refills and withdrawals change the balance.
- Corpus needed and Max monthly expense are found by re-running the full simulation many times (binary search) until the plan just barely lasts till your target age.
- Value at retirement divides each year's amounts by the total inflation since you retired. All figures are rounded only when displayed.